Quote:
Originally Posted by Flatdeck
I agree that the symptom of a damaged diaphragm is slightly higher idle. If you do not deal with it it will just get worse until one day your 3b will just rev till its screaming .... I've heard one do it.
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I'd have to agree with Flatdeck.
When I had to replace my diaphragm, the symptoms were high idle and the last day I could drive it (which was to the mechanic to swap out the diaphragm), white smoke was pouring out of my tailpipe and my RPMs were so uncontrollably high, that at every traffic light, I had to shut down my truck via the key ignition, or my idle would have just kept climbing and filling the intersection with white plumes of smoke.
That was ten years ago, been flawless ever since.