Quote:
Originally Posted by Racer2172
What is the best was to cleanup a running engine, without complete teardown to get old buildup etc from inside the motor with hurting the motor? Its an old project tow truck that rarely is street driven more for around the yard use. So not ready to tear down the motor yet. What would you recommend Seafoam? Any other tricks to flush the motor with out doing damage ?
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Have you popped the valve covers to see how much gunk you have inside?
If it isn't bad flushing won't hurt but if it's bad I would leave it be.
I agree with Cadillac Al.