Crank

[b44jhh]

Hi there need a bit of info is 7a crank same as AbY and 3b


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[RichLV]

All 5 pot petrol cranks are the same - 034105101S.

[b44jhh]

Cool


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[bn-01-wso]

All 5 pot petrol cranks are the same - 034105101S.

Not quite all of them. For example MC 10VT has a smaller diameter of the rod journal. But the 20v i think they are all the same.

[UrS4boy]

All 5 pot petrol cranks are the same - 034105101S.

I don't know if that as originally true or not. But now, the only 20V (7A, 3B , AAN,ABY and ADU crank) is as suggested= 034105101S. 034105101S is also listed for the KV and NG. The NM with it's smaller displacement used a shorter throw crank, a 034105021G which was used in some 2L 10 V engines as well.

[SteveH]

From way back I seem to remember some cranks are forged and some are cast. There was a post about it from Mark H

[V6quattro]

Yes i'm running a cast crank in my car.

[RichLV]

I don't know if that as originally true or not. But now, the only 20V (7A, 3B , AAN,ABY and ADU crank) is as suggested= 034105101S. 034105101S is also listed for the KV and NG. The NM with it's smaller displacement used a shorter throw crank, a 034105021G which was used in some 2L 10 V engines as well.

AAR also. I wasn't sure about pre-1990 cars.

[igor136]

Look at this . The man says that the difference in the oil channel.

http://shop.autewo.de/Antrieb---Motoren---Getriebe-Motorenteile---Zylinderkoepfe-Kurbelwellen-034105101S-Audi-90-Typ-81-85-89-100-200-Typ-44-5-Zyl-Kurbelwelle-143000km-/a49261019_u341/