adamtucker

well, they from a ticking to a violent rattle. I think there is a broken valve(s). Either way, it doesnt sound right and the motor starts, then cuts out.

MikeVa

Man that sucks. I could have put money on the alternator. I have no idea where that squealing could be from. Usually a rod bearing would be a knock or rap that increases with the rpm's. Could be a bad timing chain or cam gear. If there was that much internal screeching, there would be tell-tale signs in the oil(dipstick). Also that low voltage reading is puzzling.
Does it sound like this?
http://www.n2s1.net/RacingVideos/havoc_enginesound.wmv
Or this?
http://youtube.com/watch?v=n4xnBuhF8Rk


I guess it will need to be disassembled to see what went on.

Sorry man, I hoped it was just the alternator. Let us know what the verdict is.

Mike

adamtucker

yeah, it sounds a lot like the You Tube video.

adamtucker

kinda like the YouTube video, but it was the valves making all the noise.

MikeVa

That sucks. Then it is your rod bearings. Time for a rebuild.

adamtucker

it was rebuilt 10,000 miles ago. How long is a rebuild usually good for?

MikeVa

Wow, if that's the case they messed it up badly. Was it a garage that did this rebuild? Good rebuilds can last 100,000 miles easy. I would take it back and tell them it redo it.

351W THUNDER

take off your valve covers and c if theres anything wrong

1971 Coupe

The shaft to your oil pump might of snaped. I had that exact problem and seazed up a baring.

adamtucker

I took my car to a performance shop and they found out that my oil pump was "sheared off" . So they are pulling the motor, cause I dont have the facility to do it myself in, and replace it as well as check the main bearings for damage, or anything else that may have been affected.