Screech
high pitch screech
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Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
Originally Posted by HOTWRENCH
I heard a similar noise in a buddys 360 the cam retainer bolts backed out@ the timeing chain @ gear were eating the cover.
GOOD LUCK HOTWRENCH
GOOD LUCK HOTWRENCH
Fleet Mechanic
Joined: Jul 2000
Posts: 1,493
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From: SE Iowa
Could be a cracked flywheel. I had a 302 in a '77 Mustang in high school. We dyno'd it in shop showing 295hp with about as much torque. I drove it for several months and it developed this god awful screech. Checked everything and couldnt find the source until I pulled the motor to "disect" it. The flywheel had begun to crack around the bolts. Cause? My guess was a combo of the bellhousing bolts coming loose and the fact that it had solid motor/tranny mount. Just food for thougth.
Stryder
Stryder
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
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From: Long Island USA
Originally Posted by ford390gashog
i ran it with all the belts unhooked to see if it went away and it did not so i am at a total loss now the sound is back and little louder it sounds like metal on metal
The cam-retainer sounds like a good idea, but it could be the flywheel hitting the engine plate?
One other thing - did you ever hear a starter not disengage right away? Is it THAT type of screech?
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Fleet Owner
Joined: Jan 2004
Posts: 26,007
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From: Brentwood,CA
yeah i was think of doing that would low fluid level in a auto tranny cause this because it is as if the sound has moved it is more present towards the back of the engine
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Cargo Master
Joined: Apr 2004
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From: Golden, CO
Originally Posted by ford390gashog
how could i tell if the starter won't disengage it is also mounted to a auto so i don't know if the flexplate would crack but the starter is brand new
With the motor cold, grab the free end of the starter and give it a shake to see if there's ANY play. A few thermal cycles, some vibration...stranger things have happened.
I've seen new starters with different length snouts when compared with the old one. I've seen old starters with notches cut in the snout by the ring gear. These same starters had enough slop in the mounting holes to rotate their "clock" position just enough to cause interference.
While you are down there, remove the inspection cover from the front of the bell housing. Look for metal shavings, excessive fluid leakage. Verify that the bell housing is tight against the block.
FWIW, your tranny fluid being "a little low" shouldn't cause problems. Even with the best maintenance, parts wear out.
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