1996 Saturn SL2 no compression

KASS413

MEMBER
1996 SATURN SL2

Engine Mechanical problem
1996 Saturn SL2 4 cyl Two Wheel Drive Manual

took off timing chain cover, replaced meticulously, car started, then stopped. And wont start, has zero compression in any of the cylinders and alot of gas under the spark plug. What do I do

3 Replies

SATURNTECH9

MECHANIC
30,869 POSTS

So I take it you replaced the timing chain?If you did what part's did you change?Why did you change the timing chain?How did it run before the chain was replaced?With no compression on any of the cylinder's sound's like something happened to the timing chain.

SPONSORED LINKS

Was this

answer

helpful?

Yes

No

Friday, October 29th, 2010 AT 12:48 PM

KASS413

MEMBER
2 POSTS

I was changing the valve cover gasket and had stripped threads (sorry if my terminology is off) got a helicoil kit and it didnt have the tool to turn the coil, henceforth a couple fell into the timing chain cover. So we had to fish. As far as I know we never did any significant damage to the chain. My mechanic said it looked fine. Any other ideas? There was alot of gas in the spark plug hole. Spark plugs were soaked and ruined

Was this

answer

helpful?

Yes

No

Friday, October 29th, 2010 AT 3:43 PM

SATURNTECH9

MECHANIC
30,869 POSTS

Sound's like the engine ran fine before you messed with the valve cover and dropped heli coil's down the timing chain area. If you loose compression on all four cylinder's suddenly like you did then the first thing I would check is the timing chain and make sure it didn't break or jump. Take your valve cover back off and check the chain and the timing. That's where you need to start. If you lost compression on like one cylinder then I would say you probably burnt a valve but all four you need to check the chain.

Was this

answer

helpful?

Yes

No

Friday, October 29th, 2010 AT 4:39 PM