US3321985A - Engine turn-over attachment - Google Patents

Engine turn-over attachment Download PDF

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Publication number
US3321985A
US3321985A US409907A US40990764A US3321985A US 3321985 A US3321985 A US 3321985A US 409907 A US409907 A US 409907A US 40990764 A US40990764 A US 40990764A US 3321985 A US3321985 A US 3321985A
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spindle
engine
attachment
sleeve
pinion
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US409907A
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Roland T Wheeler
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0046—Shape of casings adapted to facilitate fitting or dismantling of engine parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked

Definitions

  • This invention relates to internal combustion engines, and particularly to a tool which facilitates manually controlled turning over of the engine when it is desired to effect the removal, replacement, or adjustment of certain parts thereof, such as the valves, fuel injecting equipment, magneto or distributor timing elements, and various other engine features, all of which are connected in some manner to and are actuated by rotation of the flywheel of the engine.
  • the flywheel In the greater percentage of present day engines, however, the flywheel is enclosed and there is no way to rotate the same (when the engine itself is not running) other than by the usual starter motor which is operatively gear-connected to the flywheel and thus does not lead itself to effecting very small arcs of rotation thereof. In any case, such starter motors are arranged to only rotate the flywheel in one direction.
  • the major object of my invention to provide a novel tool for manually rotating the flywheel (and consequently the engine) in either direction and in small increments, and which tool is in the form of an attachment adapted to be mounted on the engine upon removal of the starter motor unit therefrom; the attachment being provided with a pinion which meshes with the ring gear on the flywheel in place of the pinion which is a part of the starter motor unit.
  • Another object of the invention is to mount the pinion of the attachment in a manner so that-when the latter is secured to an engine-such pinion may be readily rotated in either direction by means of a conventional ratchet wrench or the like.
  • the attachment includes a reversible mounting plate adapted to take the place of the corresponding plate of the starter motor unit, and an additional object of the invention is to reversibly support the aforesaid pinion in connection with the mounting plate in such a manner that the distance of the pinion from the plate may be readily altered, so as to accommodate the attachment for use on engines having different distances between the flywheel ring gear and the mounting plate support on the engine block.
  • a further object of the invention is to provide an engine turn-over attachment which is designed for ease and economy of manufacture.
  • a still further object of the invention is to provide a practical, reliable and durable engine turn-over attachment and one which is exceedingly effective for the purpose for which it is designed.
  • FIG. 1 is a fragmentary outline of a typical motor vehicle engine, showing the engine turn-over attachment mounted thereon.
  • FIG. 2 is an enlarged outer end elevation of the attachment before mounting on an engine.
  • FIG. 3 is an enlarged sectional elevation of the attachment, taken on line 33 of FIG. 2.
  • FIG. 4 is a similar view, but showing the parts reversed.
  • the tool or attachment comprises a reversible mounting plate 1 which is generally of the same size and configuration as, and temporarily replaces, the mounting plate of the starter motor unit (not shown) of the engine 2.
  • the plate 1 includes peripherally spaced, outwardly projecting ears 3 having radial bolt-receiving slots 4 there in positioned so that two at least aline with the tapped holes in the flange 5 of the engine block 6 at the rear end and On one side thereof, and which slots and tapped holes receive the cap screws 7 which normally hold the starter mounting plate in position.
  • the plate 1 On each side the plate 1, radially inward from the ears 3, is formed with a circular shoulder 8. These shoulders may be of the same or somewhat diiferent sizes, and either of which is adapted to fit into the opening 9 already formed in the flange 6, as shown in FIG. 1.
  • the plate 1 is also formed with a central elongated sleeve 10 which projects in an axial direction further from one side of the plate 1 than from the other; said sleeve, throughout its length, having a bore 11 of constant diameter.
  • a spindle 12 Removably mounted in the bore 11 is a spindle 12 which at one end is formed with an enlarged, exteriorly cylindrical portion 13 which projects from one end of the sleeve 10 and is formed with an outwardly opening, noncircular socket 14 adapted to removably receive the turnable element or stud of a standard ratchet wrench W.
  • the enlarged portion 13 turnably engages and fits the bore 11, and outwardly of said bore said portion 13 is formed with a circumferential groove 15 in which a detachable snap-ring 16 is seated and which snap-ring engages the adjacent end of the sleeve 10.
  • the spindle 12 is formed with another enlarged, exteriorly cylindrical portion 17 wihch also turnably fits in the adjacent end portion of the bore 11.
  • the spindle is formed with an enlarged radial stop flange 18 which abuts against the adjacent end of the sleeve 10; the distance 'between the adjacent faces of the snap-ring 16 and said flange 18 being equal to the length of the sleeve 10 so that the spindle may rotate but cannot move lengthwise in the sleeve as long as the snap-ring is in place.
  • a pinion 19 of a size and having a tooth pitch to mesh with the teeth of the usual ring gear 20 which surrounds and is fixed on the flywheel 21 of the engine 2.
  • the flywheel When the above described attachment is mounted in position with pinion 19 in mesh with the ring gear 20, the flywheel may be rotated little by little by means of the ratchet wrench W, and the crank shaft of the engine correspondingly turned over as may be desired when engine repairs or adjustments are being made.
  • the attachment When the spindle 12 is mounted in the sleeve 10 in the position shown in FIG. 3, the attachment is used on an engine in which the flywheel ring gear 29 is a certain distance rearwardly of the flange 6. In some engines however, the flywheel ring gear 20 is closer to the flange 6.
  • the position of the spindle 12 in the sleeve 16 is reversed so that the pinion 19 Will then be at the end of the sleeve 10 closest to the plate 1, as shown in FIG. 4; said mounting plate 1 also being reversed before the attachment is installed on the engine.
  • the removability of the spindle 12 enables one spindle to be readily replaced by another having a pinion 19 of a diflferent tooth pitch from that of said one pinion should this be necessary to accommodate the attachment to a certain engine.
  • any one attachment may be made so as to accommodate it for use on different engines of the same general design and size, as hereinbefore indicated, it will be obvious that different models of the attachment must be provided for use on the many varied types and sizes of internal combustion engines now in service in a number of industries, and in connection with the repair or adjustment of such engines the attachment would be of value.
  • a turn-over attachment for an internal combustion engine said engine having a flywheel enclosed by means which includes a transverse flange on one side of the engine, the flange having an opening therethrough, a ring gear extending about the flywheel, and a starter motor unit having a mounting plate detachably secured on the outer face of the flange and a pinion removably meshing with the gear;
  • the attachment comprising a mounting plate adapted to be detachably secured on the flange over the opening upon removal of the starter motor unit, a sleeve formed with said plate at a right angle thereto, a spindle turnably mounted in the sleeve, a pinion on the inner end of the spindle beyond the sleeve in position to mesh with the gear, and means provided with the spindle at its outer end for engagement with a hand tool for turning the spindle and pinion.
  • said last named means comprises an enlarged flange on the spindle back from the pinion and engaging the inner end of the sleeve, the spindle adjacent its outer end having a circumferential groove adjacent but outwardly of the outer end of the sleeve, and a snap ring removably engaged in the groove; the spindle being slid-ably removable from the sleeve upon detachment of the snap ring.
  • a turn-over attachment for an internal combustion engine said engine having a flywheel enclosed by means which includes an exposed flange having an opening there through, and the flywheel having a ring gear thereon, a portion of said gear being exposed to the opening;
  • the attachment comprising a mounting plate adapted to be detachably secured on the outer face of said exposed flange over the opening, an initially open ended sleeve formed with and projecting inwardly through the opening, the sleeve being parallel to the axis of the flywheel, a spindle turnably secured in and projecting from the sleeve, a pinion on the inner end of the spindle, the pinion being in mesh with the gear, and means formed on the outer end of the spindle for engagement with a hand tool for turning said spindle and pinion.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Description

y 1967 R. T. WHEELER ENGINE TURN-OVER ATTACHMENT Filed Nov. 9, 1964 INVENTOR. Bah/2d 7? wheeler WWW United States Patent 3,321,985 ENGINE TURN-OVER ATTACHMENT Roland T. Wheeler, 744 Empire Ave., Modesto, (Ialif. 95351 Filed Nov. 9, 1964, Ser. No. 409,907 Claims. (Cl. 74-325) This invention relates to internal combustion engines, and particularly to a tool which facilitates manually controlled turning over of the engine when it is desired to effect the removal, replacement, or adjustment of certain parts thereof, such as the valves, fuel injecting equipment, magneto or distributor timing elements, and various other engine features, all of which are connected in some manner to and are actuated by rotation of the flywheel of the engine.
In the greater percentage of present day engines, however, the flywheel is enclosed and there is no way to rotate the same (when the engine itself is not running) other than by the usual starter motor which is operatively gear-connected to the flywheel and thus does not lead itself to effecting very small arcs of rotation thereof. In any case, such starter motors are arranged to only rotate the flywheel in one direction.
It is, therefore, the major object of my invention to provide a novel tool for manually rotating the flywheel (and consequently the engine) in either direction and in small increments, and which tool is in the form of an attachment adapted to be mounted on the engine upon removal of the starter motor unit therefrom; the attachment being provided with a pinion which meshes with the ring gear on the flywheel in place of the pinion which is a part of the starter motor unit.
Another object of the invention is to mount the pinion of the attachment in a manner so that-when the latter is secured to an engine-such pinion may be readily rotated in either direction by means of a conventional ratchet wrench or the like.
The attachment includes a reversible mounting plate adapted to take the place of the corresponding plate of the starter motor unit, and an additional object of the invention is to reversibly support the aforesaid pinion in connection with the mounting plate in such a manner that the distance of the pinion from the plate may be readily altered, so as to accommodate the attachment for use on engines having different distances between the flywheel ring gear and the mounting plate support on the engine block.
It is also an object of the invention to provide an at tachmen-t, for the purpose described, in which the pinion is removable from the mounting plate whereby pinions having diflferent tooth pitches may be individually and selectively employed in order to attain proper mesh with a given flywheel ring gear.
A further object of the invention is to provide an engine turn-over attachment which is designed for ease and economy of manufacture.
A still further object of the invention is to provide a practical, reliable and durable engine turn-over attachment and one which is exceedingly effective for the purpose for which it is designed.
These objects are accomplished by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.
In the drawings:
FIG. 1 is a fragmentary outline of a typical motor vehicle engine, showing the engine turn-over attachment mounted thereon.
FIG. 2 is an enlarged outer end elevation of the attachment before mounting on an engine.
"ice
FIG. 3 is an enlarged sectional elevation of the attachment, taken on line 33 of FIG. 2.
FIG. 4 is a similar view, but showing the parts reversed.
Referring now more particularly to the drawings and to the characters of reference marked thereon, the tool or attachment comprises a reversible mounting plate 1 which is generally of the same size and configuration as, and temporarily replaces, the mounting plate of the starter motor unit (not shown) of the engine 2.
The plate 1 includes peripherally spaced, outwardly projecting ears 3 having radial bolt-receiving slots 4 there in positioned so that two at least aline with the tapped holes in the flange 5 of the engine block 6 at the rear end and On one side thereof, and which slots and tapped holes receive the cap screws 7 which normally hold the starter mounting plate in position.
On each side the plate 1, radially inward from the ears 3, is formed with a circular shoulder 8. These shoulders may be of the same or somewhat diiferent sizes, and either of which is adapted to fit into the opening 9 already formed in the flange 6, as shown in FIG. 1. The plate 1 is also formed with a central elongated sleeve 10 which projects in an axial direction further from one side of the plate 1 than from the other; said sleeve, throughout its length, having a bore 11 of constant diameter.
Removably mounted in the bore 11 is a spindle 12 which at one end is formed with an enlarged, exteriorly cylindrical portion 13 which projects from one end of the sleeve 10 and is formed with an outwardly opening, noncircular socket 14 adapted to removably receive the turnable element or stud of a standard ratchet wrench W. The enlarged portion 13 turnably engages and fits the bore 11, and outwardly of said bore said portion 13 is formed with a circumferential groove 15 in which a detachable snap-ring 16 is seated and which snap-ring engages the adjacent end of the sleeve 10.
Toward its opposite end, the spindle 12 is formed with another enlarged, exteriorly cylindrical portion 17 wihch also turnably fits in the adjacent end portion of the bore 11.
Just beyond the enlarged portion 17, the spindle is formed with an enlarged radial stop flange 18 which abuts against the adjacent end of the sleeve 10; the distance 'between the adjacent faces of the snap-ring 16 and said flange 18 being equal to the length of the sleeve 10 so that the spindle may rotate but cannot move lengthwise in the sleeve as long as the snap-ring is in place.
Also formed with the spindle 12 and extending axially beyond the flange 18 is a pinion 19 of a size and having a tooth pitch to mesh with the teeth of the usual ring gear 20 which surrounds and is fixed on the flywheel 21 of the engine 2.
When the above described attachment is mounted in position with pinion 19 in mesh with the ring gear 20, the flywheel may be rotated little by little by means of the ratchet wrench W, and the crank shaft of the engine correspondingly turned over as may be desired when engine repairs or adjustments are being made.
When the spindle 12 is mounted in the sleeve 10 in the position shown in FIG. 3, the attachment is used on an engine in which the flywheel ring gear 29 is a certain distance rearwardly of the flange 6. In some engines however, the flywheel ring gear 20 is closer to the flange 6. For use of the attachment in the latter event, the position of the spindle 12 in the sleeve 16 is reversed so that the pinion 19 Will then be at the end of the sleeve 10 closest to the plate 1, as shown in FIG. 4; said mounting plate 1 also being reversed before the attachment is installed on the engine.
Additionally, the removability of the spindle 12 enables one spindle to be readily replaced by another having a pinion 19 of a diflferent tooth pitch from that of said one pinion should this be necessary to accommodate the attachment to a certain engine.
While any one attachment may be made so as to accommodate it for use on different engines of the same general design and size, as hereinbefore indicated, it will be obvious that different models of the attachment must be provided for use on the many varied types and sizes of internal combustion engines now in service in a number of industries, and in connection with the repair or adjustment of such engines the attachment would be of value.
From the foregoing description, it will be readily seen that there has been produced such an engine turn-over attachment, as substantially fulfills the objects of the invention, as set forth herein.
While this specification sets forth in detail the present and preferred construction of the engine turn-over attachment, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.
Having thus described the invention, the following is claimed as new and useful and upon which Letters Patent is desired:
1. A turn-over attachment for an internal combustion engine, said engine having a flywheel enclosed by means which includes a transverse flange on one side of the engine, the flange having an opening therethrough, a ring gear extending about the flywheel, and a starter motor unit having a mounting plate detachably secured on the outer face of the flange and a pinion removably meshing with the gear; the attachment comprising a mounting plate adapted to be detachably secured on the flange over the opening upon removal of the starter motor unit, a sleeve formed with said plate at a right angle thereto, a spindle turnably mounted in the sleeve, a pinion on the inner end of the spindle beyond the sleeve in position to mesh with the gear, and means provided with the spindle at its outer end for engagement with a hand tool for turning the spindle and pinion.
2. An attachment, as in claim 1, in which the spindle is exposed to the outer end of the sleeve, and said means includes a non-circular longitudinal socket in the outer end portion of the spindle for matching reception of a stud included in the hand tool.
3. An attachment, as in claim 1, in which the sleeve is elongated and projects further from one face of the mounting plate than from the opposite face thereof, and means reversibly mounting the spindle in the sleeve; the mounting plate being reversible relative to the transverse flange.
4. An attachment, as in claim 3, in which said last named means comprises an enlarged flange on the spindle back from the pinion and engaging the inner end of the sleeve, the spindle adjacent its outer end having a circumferential groove adjacent but outwardly of the outer end of the sleeve, and a snap ring removably engaged in the groove; the spindle being slid-ably removable from the sleeve upon detachment of the snap ring.
5. A turn-over attachment for an internal combustion engine, said engine having a flywheel enclosed by means which includes an exposed flange having an opening there through, and the flywheel having a ring gear thereon, a portion of said gear being exposed to the opening; the attachment comprising a mounting plate adapted to be detachably secured on the outer face of said exposed flange over the opening, an initially open ended sleeve formed with and projecting inwardly through the opening, the sleeve being parallel to the axis of the flywheel, a spindle turnably secured in and projecting from the sleeve, a pinion on the inner end of the spindle, the pinion being in mesh with the gear, and means formed on the outer end of the spindle for engagement with a hand tool for turning said spindle and pinion.
References Cited UNITED STATES PATENTS FRED C. MATTERN, ]R., Primary Examiner.
DAVID J. WILLIAMOWSKY, Examiner.
C. J. HUSAR, Assistant Examiner.

Claims (1)

1. A TURN-OVER ATTACHMENT FOR AN INTERNAL COMBUSTION ENGINE, SAID ENGINE HAVING A FLYWHEEL ENCLOSED BY MEANS WHICH INCLUDES A TRANSVERSE FLANGE ON ONE SIDE OF THE ENGINE, THE FLANGE HAVING AN OPENING THERETHROUGH, A RING GEAR EXTENDING ABOUT THE FLYWHEEL, AND A STARTER MOTOR UNIT HAVING A MOUNTING PLATE DETACHABLY SECURED ON THE OUTER FACE OF THE FLANGE AND A PINION REMOVABLY MESHING WITH THE GEAR; THE ATTACHMENT COMPRISING A MOUNTING PLATE ADAPTED TO BE DETACHABLY SECURED ON THE FLANGE OVER THE OPENING UPON REMOVAL OF THE STARTER MOTOR UNIT, A SLEEVE FORMED WITH SAID PLATE AT A RIGHT ANGLE THERETO, A SPINDLE TRUNABLY MOUNTED IN THE SLEEVE, A PINION ON THE INNER END OF THE SPINDLE BEYOND THE SLEEVE IN POSITION TO MESH WITH THE GEAR, AND MEANS PROVIDED WITH THE SPINDLE AT ITS OUTER END FOR ENGAGEMENT WITH A HAND TOOL FOR TURNING THE SPINDLE AND PINION.
US409907A 1964-11-09 1964-11-09 Engine turn-over attachment Expired - Lifetime US3321985A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0107439A1 (en) * 1982-10-25 1984-05-02 Ford Motor Company Limited Method and apparatus for securing and releasing a crankshaft pulley
EP0121698A1 (en) * 1983-04-06 1984-10-17 Klöckner-Humboldt-Deutz Aktiengesellschaft Device for manually turning a reciprocating piston internal-combustion engine
US4580534A (en) * 1984-12-24 1986-04-08 Caterpillar Tractor Co. Engine barring device
US5460138A (en) * 1994-02-28 1995-10-24 Caterpillar Inc. Engine barring system
US5882181A (en) * 1996-10-01 1999-03-16 Cummins Engine Company, Inc. Barring adaptor for an engine air compressor
US20040069264A1 (en) * 2002-06-27 2004-04-15 Romeo Capodiferro Engine timing
WO2004039535A1 (en) * 2002-11-01 2004-05-13 Ian Anthony Burrows Handleless motor vehicle pulley brace
DE102004013764B4 (en) * 2004-03-20 2010-06-17 Audi Ag Tool for turning a crankshaft
USD769090S1 (en) 2015-04-21 2016-10-18 Karl Pia Engine-turning tool
US10400669B2 (en) * 2016-07-07 2019-09-03 Chongqing Starting Power Unit Co., Ltd. Electric starter with manual turning function
US11260516B1 (en) 2020-02-18 2022-03-01 Ryan Roberts Barring device attachment for providing engine maintenance

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB152006A (en) *
US1167887A (en) * 1915-06-14 1916-01-11 Colburn Machine Tool Company Drill-press.
US1236803A (en) * 1916-10-02 1917-08-14 North East Electric Co Engine-starting mechanism.
US1284850A (en) * 1917-05-15 1918-11-12 Bbc Brown Boveri & Cie Motor-car-engine-starting apparatus.
US1508290A (en) * 1924-01-08 1924-09-09 Osborne H Parsons Combination starter for automobiles
US1795078A (en) * 1920-10-21 1931-03-03 Ind Res Corp Starter transmission
US2151196A (en) * 1937-12-09 1939-03-21 Briggs & Stratton Corp Means for starting portable power units
US2164673A (en) * 1936-12-18 1939-07-04 Montgomery Ward & Co Inc Starting mechanism for explosive engines
US2895295A (en) * 1952-04-04 1959-07-21 Solar Aircraft Co Variable speed gas turbine
US2939448A (en) * 1957-04-04 1960-06-07 Outboard Marine Corp Electric starter attachment for internal combustion engines

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB152006A (en) *
US1167887A (en) * 1915-06-14 1916-01-11 Colburn Machine Tool Company Drill-press.
US1236803A (en) * 1916-10-02 1917-08-14 North East Electric Co Engine-starting mechanism.
US1284850A (en) * 1917-05-15 1918-11-12 Bbc Brown Boveri & Cie Motor-car-engine-starting apparatus.
US1795078A (en) * 1920-10-21 1931-03-03 Ind Res Corp Starter transmission
US1508290A (en) * 1924-01-08 1924-09-09 Osborne H Parsons Combination starter for automobiles
US2164673A (en) * 1936-12-18 1939-07-04 Montgomery Ward & Co Inc Starting mechanism for explosive engines
US2151196A (en) * 1937-12-09 1939-03-21 Briggs & Stratton Corp Means for starting portable power units
US2895295A (en) * 1952-04-04 1959-07-21 Solar Aircraft Co Variable speed gas turbine
US2939448A (en) * 1957-04-04 1960-06-07 Outboard Marine Corp Electric starter attachment for internal combustion engines

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0107439A1 (en) * 1982-10-25 1984-05-02 Ford Motor Company Limited Method and apparatus for securing and releasing a crankshaft pulley
EP0121698A1 (en) * 1983-04-06 1984-10-17 Klöckner-Humboldt-Deutz Aktiengesellschaft Device for manually turning a reciprocating piston internal-combustion engine
US4580534A (en) * 1984-12-24 1986-04-08 Caterpillar Tractor Co. Engine barring device
US5460138A (en) * 1994-02-28 1995-10-24 Caterpillar Inc. Engine barring system
US5882181A (en) * 1996-10-01 1999-03-16 Cummins Engine Company, Inc. Barring adaptor for an engine air compressor
US5997260A (en) * 1996-10-01 1999-12-07 Cummins Engine Co., Ltd. Air compressor engine barring adaptor
US20040069264A1 (en) * 2002-06-27 2004-04-15 Romeo Capodiferro Engine timing
US6904886B2 (en) * 2002-06-27 2005-06-14 Cummins Engine Company, Ltd. Engine timing
WO2004039535A1 (en) * 2002-11-01 2004-05-13 Ian Anthony Burrows Handleless motor vehicle pulley brace
DE102004013764B4 (en) * 2004-03-20 2010-06-17 Audi Ag Tool for turning a crankshaft
USD769090S1 (en) 2015-04-21 2016-10-18 Karl Pia Engine-turning tool
US10400669B2 (en) * 2016-07-07 2019-09-03 Chongqing Starting Power Unit Co., Ltd. Electric starter with manual turning function
US11260516B1 (en) 2020-02-18 2022-03-01 Ryan Roberts Barring device attachment for providing engine maintenance

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