Cam Timing
 

Since cam timing is a topic that seems to throw doubts into engine rebuilds..

We recently took a Supercup engine, and twin turboed it

Only 4 cams to time :p

Initial set up

http://forums.pelicanparts.com/uploa...1174274206.jpg

Fixture and dial indicators in place
http://forums.pelicanparts.com/uploa...1174274291.jpg

Yeap degree wheel
http://forums.pelicanparts.com/uploa...1174274445.jpg

fine adjustments
http://forums.pelicanparts.com/uploa...1174274508.jpg

Cam timing
http://forums.pelicanparts.com/uploa...1174274566.jpg

FYI

Wonder why that one pic would not post... so here it goes again...

fixture with dial indicators in place


http://forums.pelicanparts.com/uploa...1174274770.jpg

ok I guess somewhere there is something funky in the filename... so I renamed it

http://forums.pelicanparts.com/uploa...1174274939.jpg

Nifty tools Tim. You guys make them?

Thanks for a view of how the other 1% lives! That's some engine.

The latest Excellence notes that the 8 cylinder type 771 engine (used in the 907) took the factory 220 hours to assemble.

How long for one of these?

Walt Fricke

I read that too, Walt, about the 771. The same paragraph said it took 16 hours to assemble a 906 engine, which is basically a 901. . . then again that's assembly only, not teardown, rework and reassembly.

Back to Tim's topic, what makes this engine's cam timing different than any other four-cam 996 motor? Not to downplay the significance in the slightest, on the contrary, those four-valve water-cooled engines are pretty complicated. Is that Richie in the photo?