1991 camaro rs v6 3
Lets start with this.
I have a 1991 camaro rs v6 3.1L, the car was running FINE!Beautiful!Then one day i turned it on, moved it in the grass to wash it, when i went to move it back to True Religion Outlet UK the drive way it wouldnt start.
I have done all this with no success, it keeps back firing, i even re-Set the timing back to 0 notch and set the distributor in with the striker pointing to the # 1 cylinder.Any one have any ideas before i take it somewhere and spend 400 bucks?Please help,
Thanks,
-Vince
Could be the timing chain, for sure.Similar thing happened to my mom’s 1970 302 mustang once upon a time.Like cardoc says, a worn crank or cam gear can lead to the chain skipping a few teeth.Definitely hoses the timing.Of course it could also be something more mundane but you seem to have checked most of that.
Btw, your question of damage if the timing chain breaks:That can happen in”Zero clearance”Engines where a valve at maximum opening will contact a piston at tdc.So when the timing is sufficiently off due to a belt/chain break(Or bad slip)One or more pistons could be destroyed.I believe this is common in many dohc designs but i don’t think most detroit ohv motors have this issue.Not sure about yours as i am not familiar with the gm 3.1.
Timing chain replacment is a big job so i might do some of the diagnostics cardoc recommended first.You need to pull the intake manifold and rocker arms and all the interference to get at the timing set.But if you do it make sure to change the timing gears, too.You can usually get this all as a set.You’ll probably need a puller to get the gears off.Also, be careful removing and reinstalling the harmonic balancer.These can be tough to get off and tough to put back on depending on how they are designed(Keyed, press fit, etc)
I’m not sure about the 3.1 but when I replaced the cam(And timing chain on my1994 camaro 350 v-8 the front cover gasket where it interfaces with the oil pan was a bit of an issue.I was able to able to lower the front of the oil pan enough(Without removing it, which would have been a lot more trouble)To get the front cover off.Again, it may be different on the 3.1.
Also, make sure to use the proper sealant on intake manifold bolts that go through water jackets.
Good luck and be sure to post the results.
Timing chain replacment is a big job so i might do some of the diagnostics cardoc recommended first.You need to pull the intake manifold and rocker arms and all the interference to get at the timing set.But if you do it make sure to change the timing gears, too.You can usually get this all as a set.You’ll probably need a puller to get the gears off.Also, be careful removing and reinstalling the harmonic balancer.These can be tough to get off and tough to put back on depending on how they are designed(Keyed, press fit, etc)
I’m not sure about the 3.1 but when I replaced the cam(And timing chain on my1994 camaro 350 v-8 the front cover gasket where it interfaces with the oil pan was a bit of an issue.I was able to able to lower the front of the oil pan enough(Without removing it, which would have been a lot more trouble)To get the front cover off.Again, it may be different on the 3.1.
Also, make sure to use the proper sealant on intake manifold bolts that go through water jackets.
Good luck and be sure to post the results.
Alright guys, update.Took of the compressor, steering pump, harmonic balancer, cover, looked at the chain and gears, they look freakin brand new.I guess whoever had the car before us changed it out.
Second thing, i put the car back in timing for the second time(Maybe i didnt do it right the first time)But now it rumbles like it wants to turn on.But it only does this when its been sitting for a couple hours, it does it for about 4 or 5 times that i turn it over, but never turns on, and then it stops doing it, almost like its flooded.I pulled the plugs and they are kind of wet.So i took them all out to True Religion Sale UK let them dry.