October 3, 200619 yr OK, so my brother and I purchased a 97 OB 2.5 that we knew had a faulty headgasket. We dissasembled the engine and sent the heads to the machine shop. We picked up the heads that were decked within spec and installed them as well as a new headgasket set and followed the instructions in the haynes manual. Timed the engine perfectly with the lines on the new timing belt, and the marks on the sprockets. Turned it over manually to double check all of the marks on the cam sprockets and it looks perfect. Go to start and nothing... The car turns over, and over, and over. The only way to start it is to have WOT and even then it runs like ****. It rocks sideways like an epileptic. Even with the faulty headgasket(s) in the car it started fine.....I am a long time VW (mk1-mk4) guy and have turned a wrench quite a bit so I am not a noob by any means. If anyone has any ideas I would love to hear them. When it is running it just sounds like its missing. If you go to the exhaust it sounds like something is way out of order and sputtering like a motorcycle. HELP!!! HELP!!!
October 3, 200619 yr Of course double check the plugs and wires, but also look for vacuum leaks, especially the 3/4 inch hose that attaches to the air intake assembly near the air flow sensor. Once I forgot to reinstall that hose, and the car would barely start, or it would start and immediately die. I don't know the specifics of your intake system, but I have heard others speak of this hose causing problems. matt
October 3, 200619 yr Author Thanks Matt, I actually took off the intake mani to double check to see if I had forgotten to connect something. I have quadruple checked all vacuum hoses including that one and still no go.
October 3, 200619 yr Author Keep in mind that the orange marks are not lined up. They were there before I started working on the car.
October 3, 200619 yr did you remember to put the cam sensor bracket back on, i have seen people do that a couple times
October 3, 200619 yr I'd suggest rechecking the t-belt installation, paying especial attention to the mark at the crank. The following might prove useful: http://endwrench.com/images/pdfs/TBeltEWWin05.pdf http://endwrench.com/images/pdfs/2.5Timing.pdf Motor magazine series; starts with 2.2, then moves on to 2.5: http://www.motor.com/MAGAZINE/Pdf/072001_08.pdf http://www.motor.com/MAGAZINE/Pdf/082001_08.pdf http://www.motor.com/MAGAZINE/Pdf/092001_08.pdf http://www.motor.com/MAGAZINE/Pdf/102001_08.pdf http://www.motor.com/MAGAZINE/Pdf/112001_08.pdf
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