Any Idea what that noise is?
Looking for opinions what do you hear?
It is a DRM 500 package top end ported It has aftermarket connecting rods, after market pistons marked PMI388/I not sure about the cylinder liners, and I am pretty sure it had Nitrous run on it from the holes drilled in my storage compartment. I have no idea the abuse this engine had prior to me getting it but it has been fine for 19 years with a couple of misfire issues here and there. I have been driving it as a daily for years and it has always puffed a little oil smoke. I know I have something going on so im not to worried about it just want to figure it out before I yank it out. Video https://www.youtube.com/watch?v=5V4tnQdGc6Q I had Amsoil 10w40 high zinc in it put in last spring. I checked all over the place with my mechanic stethoscope couldn't really isolate it. Oil pressure was still good Last compression test was good but I have not checked it yet. I am pulling the oil pan to check for anything obvious I'm guessing a rod bearing. lifter? piston ring? piston slap or a rod knock. I cut open the oil filter and I have small ferrous metal in the filter not a lot but some. Anyway why do you all think it is? |
Re: Any Idea what that noise is?
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Re: Any Idea what that noise is?
Seems to be one "tick" per engine revolution (i counted 15 ticks in about 2 sec at idle).
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Re: Any Idea what that noise is?
The ticking noise sounds sort of like an exhaust leak. Does it go away when it warms up?
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Re: Any Idea what that noise is?
when my 90 was stock it made that noise 90-966, and when I put a different engine in it made the same noise.... 90-702 motor. There were some cam noise issues on 90s, I never figured it out on my car.... and it never showed knock.
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Re: Any Idea what that noise is?
Noise also came and went w/weather...
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Re: Any Idea what that noise is?
well I found my knock sensor plug melted still have to check if that may be part of it.
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Re: Any Idea what that noise is?
1 Attachment(s)
Johnny, maybe it just as simple as this... --Bob
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Re: Any Idea what that noise is?
Quote:
**** I wish. Lee mentioned a little thicker oil so I'm going to try that and see if it changes. I needed to fix a rear main seal leak and that pan gasket as well so almost ready to fire it up. So we'll see. |
Re: Any Idea what that noise is?
Totally different engine, but my L98 had a loose valve guide sound very similar to that clicking. I kept adjusting my rockers thinking one was loose.
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