billrigsby
Members-
Posts
92 -
Joined
-
Last visited
Content Type
Profiles
Forums
Gallery
Store
Everything posted by billrigsby
-
So, after the siezed pulley/broke belt I have removed the head. I see no obvious damage to the valves, I expected bent and twisted metal The combustion chambers do not hold water, so I assume there is a valve problem. How much do these guys get damaged after impact with the piston? The pistons look good and the cylinders still have visible cross-hatch. Since the head is off and the other will be soon might as well do a valve job :-\ Any input appreciated, Bill
-
compression of 130 PSI is low if the measurement was made properly. As long as the procedure was correct (clean oil, engine warmed, plugs removed, throttle fully open, battery sufficiently charged so that cranking speed was adequate), closer to 175 PSI would be expected. All of the above was done except warm engine, did not want to run it too much having a problem. If the numbers are still low, do a ''wet'' test to see if they improve. What is the "wet" test you mention? It's also possible for a slight mistiming to cause lowered compression. Timing (acording to my scan tool) is at 10 deg. Bill
-
Seems after the siezed pulley/shreaded timing belt fiasco, I do have a bad cylinder. I started the vehicle for a few seconds prior to putting the radiator/belts in just to see if it would start OK. After completly putting it all together I have a cylinder with 0 psi compression and 63% leakage compared to 130 psi and 15-20% in the other 3. Seems I was not so lucky after all. Bill
-
Let me retract that last post. Have you ever done something so obvious, so stupid, and then had to fess-up? I used the arrow on the left cam pulley not the hash mark. :-\ Realized something was amiss when doing a leakdown test and all cylinders were at 25-30% except one which is at 40%. So in brief, she breathes again, no help to my stupid mistake, glad I did not pull those heads for no reason! Bill
-
All the idlers, water pump spin freely, both cams turn over with some resistance (valve springs) and "pop" over once the cam hits the apex of the lobe (did that make sense)? I am hoping this is a good sign, maybe no valve damage. I would think if a valve was bent, the cams would not "feel" normal. But they may if a valve is plain old broken? Is it a fair assumption that with a shot belt, the ignition would not even try to fire, even out of sync from the rest of the system? I'll get a belt tomorrrow and find out wahts really messed up. Bill