gone postal
NAXJA Forum User
- Location
- St. Augustine, FL
This is a continuation of this thread - http://www.naxja.org/forum/showthread.php?t=910495 - but I felt best to just start a new one to help diagnose the noise.
I tried using a hose as a stethoscope, but didn't have much luck. I honestly don't think it's an exhaust leak - sounds mechanical to me, but I've never had anything internal go wrong on an engine or an exhaust leak, so what do I know?!? I do have good oil pressure though:
new oil pressure sending unit - old one read 40 just about all the time
'91 HO 4.0 167k
60psi cold
At 210, I'm seeing 30 idle / 45-50 at 1500RPM cruise
At high 220s (overheating issue is next task) I'm seeing 20 / 35-40
Fresh 10W30 w/ half bottle SeaFoam in right now - only 20 miles on it.
Cameria is inches from the engine to ensure sound showed up. I started on driver's side and moved to pass. From the side of the engine, it sounds if it's louder towards the front than the rear. From the front of the engine, there is obviously fan noise, but it sounds just generalized. I'm guessing 2nd / 3rd cylinder area though. Any ideas?
http://www.andrewedwardsphotography.com/Random%20Photos/knock%20knock.MOV
I tried using a hose as a stethoscope, but didn't have much luck. I honestly don't think it's an exhaust leak - sounds mechanical to me, but I've never had anything internal go wrong on an engine or an exhaust leak, so what do I know?!? I do have good oil pressure though:
new oil pressure sending unit - old one read 40 just about all the time
'91 HO 4.0 167k
60psi cold
At 210, I'm seeing 30 idle / 45-50 at 1500RPM cruise
At high 220s (overheating issue is next task) I'm seeing 20 / 35-40
Fresh 10W30 w/ half bottle SeaFoam in right now - only 20 miles on it.
Cameria is inches from the engine to ensure sound showed up. I started on driver's side and moved to pass. From the side of the engine, it sounds if it's louder towards the front than the rear. From the front of the engine, there is obviously fan noise, but it sounds just generalized. I'm guessing 2nd / 3rd cylinder area though. Any ideas?
http://www.andrewedwardsphotography.com/Random%20Photos/knock%20knock.MOV
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