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Gery83
16-03-09, 17:49
Does any of you know anything about this crankshaft?
A friend of mine, has it in his Q4 engine. A bit strange...

http://www.alfaamore.hu/files/blog/0000023/0000023161.jpg

arjunior45
16-03-09, 18:18
1NRO might be the competent one to answer this question.
I can't.

Lets wait him.

Nick

Evodelta
16-03-09, 19:23
It looks like a standard crank which has been machined to make it lighter, difficult to tell without seeing it close up.

Gery83
16-03-09, 19:27
It looks like a standard crank which has been machined to make it lighter, difficult to tell without seeing it close up.

How close? :D
I can get more, bigger pictures.

1NRO
16-03-09, 21:21
Almost without doubt its a standard crank that someone has started to lighten, the initial stage has been done. It's been in a milling machine to remove meat off the leading and trailing edges off the counterweights. There's more work to call it a proper job of lightening, it's gained in respect of it's weight but lost on some othe issues. A few tips can be seen in the crank I designed and had made. It's a LOT of work to come anywhere near this thing and thats only the counterweights
http://i3.photobucket.com/albums/y85/1NRO/Eightweightassembly014.jpg