Strange Rattle
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Junior User
Joined: Jul 1999
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Strange Rattle
OK, this one has me searching under the hood with no results... I have a '64 F100 with a fairly strong 1970 351W/C4 combo (engine: 40 over, 214/224, 476/496 cam, roller tip rockers, etc, etc).. tranny rebuilt stock about 2 years ago..
Engine only has 750 miles on it so I haven't really pushed it.. but the other day, I kinda jumped on it off the line (dead stop) and I got a brief tinny rattle (not pinging) sound (almost sounds like fan blade touching a metal shroud - checked that - not the problem).. now if I am rolling and nail it back to low gear, no rattle.. this only occurs from a dead stop.. I can't see anything lose..
any ideas?
Thanks,
Bill in Mobile
'64 F100 Shortbox ('70 351W/'76 C4)
Engine only has 750 miles on it so I haven't really pushed it.. but the other day, I kinda jumped on it off the line (dead stop) and I got a brief tinny rattle (not pinging) sound (almost sounds like fan blade touching a metal shroud - checked that - not the problem).. now if I am rolling and nail it back to low gear, no rattle.. this only occurs from a dead stop.. I can't see anything lose..
any ideas?
Thanks,
Bill in Mobile
'64 F100 Shortbox ('70 351W/'76 C4)
Posting Guru
Joined: Aug 1999
Posts: 1,485
Likes: 3
Strange Rattle
I would check them u-joints first. Every bad joint makes a different sound. I had one that sounded like popcorn popping once. From there, just crawl under the truck and start looking for loose parts.
Nathan
Nathan
Posting Guru
Joined: Jun 1999
Posts: 1,525
Likes: 1
Strange Rattle
Double check your convertor nuts. These things can loosen up because they get settled into a different position after engine break in or after time. Recheck them ! Also, it isn't common on a Ford, but you may have a cracked flex plate as well.
Phillip
Phillip
