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No argument there. One could also look at it from the prospective that if it doesn’t smoke without the extra seal then why add it. But that is interesting though I would never have thought that adding valve seals would ever cause excessive wear. That is one of those things that you would never...

usually valve guides are a brass alloy that is considered to be self lubricating. At least that is the way I understood it.

It definitely looks like a crack but is it possible that it is not a crack and it is just carbon.

that is fine but if you think about it you will see my point. The intake manifold would actually get hotter without coolant flow because of heat soak from the exhaust manifold. The coolant passages in the intake manifold do not heat the intake air charge especially when under load at full boost...

The coolant in the intake manifold is to reduce intake air temp not increase it. Turbo outlet temp is far higher than coolant temp. But regardless the air moves fast enough that the air would not be heated to manifold temp like everyone tries to claim with that argument. Most turbocharged...

Being that the pistons are probably cracked because of high egt I would change all of them and as far as the sleeves go it would be a decision based on cost.

So in a way kind of like a carburetor jet that was drilled out a little bigger it will be fat in the mid range but up top is just right.

With the 5 ton air filter it is more about the higher Cfm rating of the element than the Cfm of the housing. You may not see any gain from the extra hole in your housing.

looking at this from a parts management prospective if you had 2 mechanically identical fuel pumps but they were adjusted, tuned, or preset to different fuel rates you would need two different part numbers. The community couldn’t find any significant differences in the fuel system other than...

Remember egt is effected slightly by many things but is mainly effected by air fuel ratio. The answer with high egt is always more air or less fuel the problem with always defaulting to more air is the engine can only handle so much torque.

Is it possible that you may have always had that much blow bye but just never noticed it before. I mean we all seem to look for a problem that may not be there when we think a mistake was made. If it was my truck I would drive it around some more and see what does or does not change. As far as...