I haven't entirely given up on this one yet. I thought the chain didn't help, but I was only basing it on my bad cylinder, which actually lost 20 PSI after doing the chain. The next day, I checked all the the cylinders again (no plugs, open throttle) and most of them were better. Confused, I adjusted the preload on the rocker and suddenly I'm up in the 160PSI range now on the bad cylinder. The engine is running a lot smoother now.
So now I have a couple questions:
1. I have hydraulic lifters. When I push down on the pushrod, most of them do not give but several of them feel "springy". I'm assuming that the "springy" ones are still pumped up with oil, and the hard ones have run out, at least until I start the engine again. When I put the pistons to TDC and then rotate the rods to check for tightness, do I need to push the lifter down to take out any residual lift from being pumped up? Or does this not matter?
2. On my Rochester 7025123, I have what appears to be a metered port hooked up on the front left to my vacuum advance. I know generally I want full manifold vacuum for a street car, but most of the pictures I've seen have the vacuum advance hooked up here. Is that correct? I'm wondering if I should hook it up to manifold vacuum instead.
3. Where is the PCV supposed to connect to?
Thanks!!
So now I have a couple questions:
1. I have hydraulic lifters. When I push down on the pushrod, most of them do not give but several of them feel "springy". I'm assuming that the "springy" ones are still pumped up with oil, and the hard ones have run out, at least until I start the engine again. When I put the pistons to TDC and then rotate the rods to check for tightness, do I need to push the lifter down to take out any residual lift from being pumped up? Or does this not matter?
2. On my Rochester 7025123, I have what appears to be a metered port hooked up on the front left to my vacuum advance. I know generally I want full manifold vacuum for a street car, but most of the pictures I've seen have the vacuum advance hooked up here. Is that correct? I'm wondering if I should hook it up to manifold vacuum instead.
3. Where is the PCV supposed to connect to?
Thanks!!