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Strange whirring noise from engine...


rossiz

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not the distributor, can't be the water pump (no belt, it wasn't turning)

i found this exploded view and i'm just scratching my head about what could be making this happen - nothing LOOKS like it would do that.

post-30163-14150828301123_thumb.jpg

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Only revved up to 55K.

Popped the clutch a little hard between 1st & 2nd and something felt funny - like something let go... Then I turned off the key and coasted to a stop to read the plugs. When I started her back up the noise was there, and I figured it was the alt.

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Have you listened for the noise around the tranny? Maybe a throw out bearing noise?

I admit its a shot in the dark. Sounds like its a process of elimination now so.....

I just listened again and it seems as if it is louder near the firewall.

Edited by rcb280z
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Just something to try, push the clutch in while the engine is running in neutral and see if the noise changes. Maybe something with the TO bearing as mentioned or a transmission input shaft bearing.

--Justin

Edited by buysell
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i will put her up on jack stands so i can listen from underneath and try working the clutch to see if there's any change.

just out of curiosity - is there anything up top under the valve cover that could be injured and whining?

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Hi Geoff, While you're under the car, disconnect the clutch slave cylinder spring & see if you can move the clutch release arm for & aft. I adjust mine so there is about 1/4"-3/8" of movement. This will ensure the release bearing separates from the p-plate. If the r-bearing has been pushing on the p-plate, pushing on the clutch may not change the noise.

My first impression while "listening to the video" was serious valve train noise. Pull the valve cover take a look & a listen. I think you'll find it there. Then I listened for the whirring noise & heard it. I think you'll find it in the valve train but I'm going to listen to it a few more times to take a shot at that one. Give me a call if I can help. Meanwhile, Fawlty Towers, John Cleese screaming at his car. It will make you laugh. Guaranteed

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