Quote:
Originally Posted by Maxbumpo
If you don't have a fueling problem, and you don't have an air restriction (plugged air filter) problem or exhaust restriction problem, then you may have a very non-typical turbo failure? I think if the turbine locked up, it would restrict intake and exhaust, but I'm not sure the effect would be so dramatic.
I seriously doubt this could be a timing problem or an internal engine problem. If the injection pump timing hasn't been touched and the adjusting nuts/bolts are still tight, that is probably not your problem.
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The only way I can think that it could be an internal problem is if there is a failure in the timing device. It would be a rare occurrence, though. It could change the timing enough to have problems starting and idling.
What does the exhaust smell like when it is running? If it is very rich, it could be retarded timing and that can make a turbo get too hot.
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1991 F250 super-cab 7.3 IDI. (rebuilt by me) Banks Sidewinder turbo, hydroboost brakes, new IP and injectors.
2003 S430 - 107K
1983 300SD - Tanoshii - mostly restored ~400K+.
1983 300SD - Good interior. Engine finally tamed ~250K.
Monark Nozzle Install Video -
http://tinyurl.com/ptd2tge