pusher squealing belt
Thought it was the fan belt... a new one did solve it for awhile, but now the squeal is back. We're told it might be a idler pulley. And of course, we are on the Oregon coast. We're going to limp it a...
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If you have the cummins 400hp isl, I would look for a manifold leak. Sounds just like a squeal or whistle. I had mine checked at cummins NW in Coburg, OR. They replaced the manifold because it was warped too much to repair. It is a known issue. Look for black soot around the #3 cylinder. That's where my leak was. Will cost about $900 to replace. Good news is the replacement manifold is re-designed and with proper torquing, it should never be an issue again.
Bob
Bob
