D_Bat
Veteran Member
Just as the topic states. I forget which one was a upgrade over the stock MK3 cam. I remmeber seeing it somewhere but couldn't ifnd it again through the searches.
You can use MK4 cam in a MK3 because the vacuum pump is driven from the intermediate shaft in the block,not from the camshaft.TDIMeister said:None. First of all, the Mk4 TDI cam has the same specifications as the Mk3, and second, you cannot interchange the cams between generations without machining modifications.
See picture. Left -- Mk4; right -- Mk3
I don't understand well... my car is an AFN(1998) and i supposed that is a MK3 but the vacuum pump is driven from the intermediate shaft...is my engine MK3 or MK4?mk3pd said:You can use MK4 cam in a MK3 because the vacuum pump is driven from the intermediate shaft in the block,not from the camshaft.
THERE ISN'T ANY!!Satiro said:Wich is the improvement for to change a MK3 cam for a MK4 cam?
True.TDIMeister said:The slots also serve for alignment and fixing the cam timing.