I recently did a lower intake manifold gasket on my car and I replaced the plugs/wires, air filter, and all the gaskets along the way. After I was finished I started the car up and at first the car was really noisy in the top end but it quieted down after about 10-20 seconds, but it was still there.
I was worried I messed something up so after about 2000 miles I tore it down AGAIN, replaced gaskets with ac delcos, all the pushrods were in the correct location, no broken parts. As I was putting the pushrods back in I noticed one of the pushrods had a little stress mark on it, I put it all back together without changing it because it was on the front head so it is easy to get to. I go to start it and it was running just fine but it seemed to have a smooth idle but it felt like it was loping a little (no rpm fluctuations) and I still had a hesitation and no power.
basically my question is, can there only be one pushrod messed up? If it was bent wouldnt it cause a miss? Could it bend and not bend a valve? How could it bend?
I dont know anymore its driving me nuts though.
compression was good, lowest was on the cylinder with the weird looking pushrod but the numbers were like 205 to 195 so I didnt think it was bent.
Wednesday, February 22nd, 2012 AT 1:07 AM