Author Topic: Cracked crankshaft  (Read 1298 times)

Offline chotus52

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Cracked crankshaft
« on: 02.01. 2025 01:48 »
Hi all, I’m chasing a crankshaft for my 1955 Shooting Star, the short stroke crank. Unfortunately mine is cracked at a big end, hence the need for a replacement. Hoping someone can assist. Regards.
55 GF s/a

Online muskrat

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Re: Cracked crankshaft
« Reply #1 on: 02.01. 2025 09:19 »
G'day chotus52.
Good luck. I snapped two when racing my 1957 A7SS in the 90's.
Might to be easier doing what I did and get an A10 crank/rods (large journal)/barrels & pistons. The A7SS head will take A10 (iron head) valves.
For the life of me I can't find a part number for the crank!
Cheers
'51 A7 plunger, '57 A7SS racer now a A10CR,  '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7

Offline Swarfcut

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Re: Cracked crankshaft
« Reply #2 on: 02.01. 2025 09:55 »
 It's the same crank on all short stroke A7's. 67 384 and 67 385 are listed, originally listed bare in some catalogues or supplied with rods, hence different part number, which also changes with a change in con rod type. Doubtful you will find a new one.....cheap.

 Swarfy.

Offline RogerSB

  • 1960 Golden Flash, Plymouth, Devon, England
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Re: Cracked crankshaft
« Reply #3 on: 02.01. 2025 11:06 »
67-383 for 1955 SS. Hope the pics are legible. (Click to enlarge).
Rog.

1960 Golden Flash


Offline Tomcat

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Re: Cracked crankshaft
« Reply #5 on: 03.01. 2025 03:48 »
Try Mike Reilly in Qld or Andy H (member on this forum) in Vic.
1959 Super Rocket, 1990 NX650