PLEASE HELP! HIGH EGT'S!

[majek5]

Originally Posted by 907dave

Boost leaks can include the turbo outlet o-ring, intake boots, intake manifolds or any combination of the three.

Looking for the exhaust leak is the easiest way to tell, you will see the soot around the problem area.

What are your boost #'s when EGT's are high?

Good Luck

About 10-12psi @ 2000-2250rpm.

[907DAVE]

Hmmm.......seems low to me.

[ChuckD]

Do you got leaking up pipes?

[majek5]

Don't see any leaks on the exhaust side. Everything is tight on the boost side. Talked to a "turbo" guy, he said the boost #'s that I am seeing are low and the turbo wheels could be worn, which could be the higher than wanted egts. Does this sound right?

[ChuckD]

Do you have any laterial movementin the turbo?

[majek5]

Originally Posted by ChuckD

Do you have any laterial movementin the turbo?

Yes, there is a little play. The fins do not appear to be bent or damaged. The truck had a k&n on it for at least 60,000mi. I put the tymar on it when I discovered how bad they are for a diesel. Not having seen a new wheel, I have no reference if it is "dusted".

[Tholt34]

I'm not familiar with the OBS's, but if you can't find any boost leaks and your only making about 10-12 lbs. of boost, do you think your wastegate is opening up to early or do the OBS have a wastegate since there a bigger exhaust housing then the SD's?
My other truck I had, the wastegate was weak and wouldn't only make about 5 to 7 lbs. less boost then should of b/c of the it opening. Wouldn't it get hot if it opened to soon and ran there?