Quote:
Originally Posted by Zeke
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That's the crux of the matter. What do they say about re-torquing after initial break in? In my mind I would think the heat cycle would help out a lot in this scenario to get the bolts spot on.
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While that is called for on certain engines, not this one. They torque them down once at the factory and then tow heavy for many hundreds of thousands of miles. They are an over-built Diesel engine and the only way to shorten their life is through improper maintenance, which happens a lot. The last couple I’ve rebuilt were “dusted” from people installing a K&N or similar “cold air intake” that allows too much dirt into the intake and destroys the seal between rings and cylinders. It’s very common.
If you ever buy a used one, walk away from anything that has an aftermarket intake and/or evidence of dirt getting past the air filter. Just unscrew the big rubber tube betweeen air cleaner and turbo, it should be as clean as an operating room inside.