Ben's e//S2

Most often the alignment seems to be "between teeth", or a half tooth off. Can be a little disconcerting.

Jimmy Pribble

Always Mobil 1, but I'm the fourth owner.

Jimmy Pribble

My car is also only pulling 10 inHg at idle and I think that would also support the car not making full compression because of incorrect timing.

I'm satisfied that we need to have another look and perhaps try again. Thanks for the tips, guys!

Jimmy

Don@STaSIS

that would be a good indicator too that base timing may be off. If you fix it soon then you can tell us how fast she is

Jimmy Pribble

Tell you how fast? Yes, I will begin working on my superlatives immediately! ;-)

tpierce

holy varnish...

M5BMW

<center><img src="http://pictureposter.audiworld.com/83502/camtiming.jpg"></center><p>Sorry to yell but c'mon guys, count the teeth. From the photos view, the exaust cam needs to be rotated counter clockwise one tooth. Looking at my drawing, #1 is the timing mark location on the sproket, count up to #7, then start counting across the chain till you get to #7 of the other sproket. The "bad" one has 11 links between vs. only 10 on the "good" one.

Brian Kissel

Jimmy Pribble

If it had come just an hour earlier, it would have saved the 45 minutes the three of us stood around tonight, staring at the cam markings and deciding if we should move it or not. The vote split, but based on the earlier evidence and the experience of Alex and the others who weighed in, I swung the vote (it's my car after all) and we clocked the intake cam one tooth.

The adjustment fixed everything. Idle is now rock solid, the engine pulls 17 inHg at idle (which fixed the brake vacuum booster problem I thought I had), O2 gauge is now behaving properly, the car is quieter(?), and oh yeah, holy crap my car is blazing fast! I jumped on it in 2nd and it pulled so hard and fast, I think I made a little pee-pee. Seriously, it transformed the car. Still, only one week left until the track event and we can't rest on our laurels; lots of work still left to do.

Thanks for the advice fellas. The I5 forum has its first legit success story. I trust Alex enough to have followed his advice, but it was Brian who really made an excellent point by reminding us not to get too focused on one thing (in this case, the cam markings), when the answer is otherwise right in front of us. We deserved the yelling. Good illustration, too!

Cheers,

Jimmy

Don@STaSIS

Awesome!

qfrog@work

well done