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Ireland Engineering

M10 Crankshaft Identifying Forge Marks

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We need to identify a pile of M10 cranks we have here. Searched far and wide here, google and our own archives. Is there a link someone can post with a list of forging marks and what they mean? @Conserv maybe you have some info? We have a list of 6 cyl cranks and what cars they came on, not sure if there exists such a thing for M10's. 

Mostly need help with identifying between 2L cranks and 1.8L cranks, without having to measure them, if there was just a visual way to do this as the cranks are loose and not in blocks. Thought about going by the date stamp and when the cars were in production, but that's probably not 100% accurate.

 

Any info would help, thank you!

 

PS: we have just about everything under the sun, 1600, 1800, 6 bolt, 8 bolt, E21, E30, 2002 etc. and a BUNCH of them, just trying to find the easiest way to sort them all out and properly identify.

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(edited)

Isn't any 1600/1800 ss from the 02 era without counterweights, opposed to 2 liters having counterweights, the only problem then is identifying the 1800 longstroke but it's a 6 hole.

For anything newer than BMW 02 I have no idea, apart from perhaps having single row cam chains

Edited by uai
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1 hour ago, Ireland Engineering said:

Mostly need help with identifying between 2L cranks and 1.8L cranks...

 

This difference can be determined with closed eyes. (And per @uai, above.) -KB

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1 hour ago, uai said:

Isn't any 1600/1800 ss from the 02 era without counterweights, opposed to 2 liters having counterweights, the only problem then is identifying the 1800 longstroke but it's a 6 hole.

For anything newer than BMW 02 I have no idea, apart from perhaps having single row cam chains

 

9 minutes ago, kbmb02 said:

 

This difference can be determined with closed eyes. (And per @uai, above.) -KB

Not all of them have crankshaft gears 😕

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20 hours ago, kbmb02 said:

 

This difference can be determined with closed eyes.

 

...by anyone who can count.

 

t

 

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On 6/13/2019 at 2:53 PM, uai said:

Isn't any 1600/1800 ss from the 02 era without counterweights, opposed to 2 liters having counterweights, the only problem then is identifying the 1800 longstroke but it's a 6 hole.

For anything newer than BMW 02 I have no idea, apart from perhaps having single row cam chains

 

23 hours ago, Guest_anonymous said:

1560474026776218989165.jpg

Thanks for the ACTUAL help dudes, MUCH appreciated. That's the actual thing we were looking for but for some reason couldn't find it @Guest_anonymous. Anyways, since you helped us out now we wanna help you out, let us know if you ever need any parts from us and we can work out some sort of discount. THANKS!!!!

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