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Pistons and cylinders

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Old Jan 18, 2025 | 01:16 PM
  #21  
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marcodarq
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Jackie, just how many HD engines have you disassembled in your life??
i've been reading a bunch of your posts, and I'm gonna nicely call bullshit!
I have disassembled and built over 400 engines and 98% of them that had any appreciable miles on them have that kind of carbon build up, they just do.
not trying to be a dick here, but if you're gonna post , at least try to be accurate. remember other people here dont always know or can tell who knows what they are talking about,,,,,,at least try.
m
 
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Old Jan 18, 2025 | 02:27 PM
  #22  
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Originally Posted by marcodarq
Jackie, just how many HD engines have you disassembled in your life??
i've been reading a bunch of your posts, and I'm gonna nicely call bullshit!
I have disassembled and built over 400 engines and 98% of them that had any appreciable miles on them have that kind of carbon build up, they just do.
not trying to be a dick here, but if you're gonna post , at least try to be accurate. remember other people here dont always know or can tell who knows what they are talking about,,,,,,at least try.
m
Only been in a couple with worn rings and leaking valve from carbon build up.

Now I have rebuilt a few car motors with the pvc system dumping into the intake. Not just in front of it.

Once you loose control of blow by, the pvc system yes is overwhelmed and dumps oil in.

My point the it doesn't really matter then since then, even a vent system to the atmosphere is not going to help.

The first poster is talking 7000 mile.

That on his is ring issue.


I looked at my 04 at 34529k with my sons bore scope. Was showing it to a prospective buyer. It didn't look like that. You could still see aluminum thru the mostly light brown buildup.

And that's mostly from unleaded fuel. Unlike leaded fuel, unleaded fuel builds up much slower.

It had 140/139 psi compression. Now it's totaly stock, noting has been added to the fuel tank other then unleaded midgrade fuel. Driven easy.

It has 40k now and has original tensioners. It's been retired for going on 4 years. I replace the fuel and drive it ever 6 months or so. Still runs like new.
 

Last edited by Jackie Paper; Jan 18, 2025 at 03:08 PM.
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Old Jan 19, 2025 | 07:55 AM
  #23  
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not your post, his
 
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Old Jan 20, 2025 | 07:52 AM
  #24  
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I don't see oil issues, but I do see a rich condition. possibly washed cylinders during ring seal...
 
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