Re: Vibration Problem at Higher RPM's. PLEASE HELP
[Re: pnypwr]
#334671
08/06/09 10:59 PM
08/06/09 10:59 PM
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Joined: Jan 2004
Posts: 6,445 Missouri
68KillerBee
OP
master
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OP
master
Joined: Jan 2004
Posts: 6,445
Missouri
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Quote:
hmm hows your fan and water pump? drop the belts and give it shot, I jad a 5.0l mustang that would shake out your fillings...water pump sprung a leak, changed it smooth as a babys bottom...step one drop the accessories and try!
we did that, still a vibration. with everything attached clutch pressed in or out, driving or just revving up, the vibration appears. with the clutch, pressure plate, d-shaft and trans out there was no vibration at any rpm. put in new clutch, pressure plate, flywheel (refurbished from brewers), rebuilt transmission, new throw out bearing, and the vibration is still there
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Re: Vibration Problem at Higher RPM's. PLEASE HELP
[Re: ph23vo]
#334674
08/16/09 01:25 PM
08/16/09 01:25 PM
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Joined: Jan 2004
Posts: 6,445 Missouri
68KillerBee
OP
master
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OP
master
Joined: Jan 2004
Posts: 6,445
Missouri
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no confusion here at all (other than why the vibration is present ) yes, we started it with just the flywheel, starter, and bellhousing and there was no vibration at all.- that means it is not in the motor. (save for a balance issue which we've figured out there should not be one. everything should be zero balance) once we put it all back together(minus driveshaft). you can start it and feel the vibration with clutch in or out. putting the driveshaft in and driving it around in gear its still there. we are going to replace the bellhousing next after talking with jamie passon at the nationals. this car used to run fine as is, but the vibration eventually developed and its been downhill since haha
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Re: Vibration Problem at Higher RPM's. PLEASE HELP
[Re: 68KillerBee]
#334676
08/16/09 07:58 PM
08/16/09 07:58 PM
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Joined: Oct 2007
Posts: 236 Richmond , Virginia
chagjr
enthusiast
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enthusiast
Joined: Oct 2007
Posts: 236
Richmond , Virginia
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Quote:
ok, here is what all has been replaced since the vibration started... new clutch, throw out bearing, resurfaced flywheel, heads reworked, carb rebuilt, new spark plugs, different harmonic balancer, and new motor mounts.... it happens with the clutch in and out but only at higher rpm's. at idle and a little above idle it doesn't vibrate at all. It's a 440 with a 4 speed behind it. could something be screwed up with the cam, crankshaft, or rods and the motor still run normal (at idle)? it's been over 2 years since we've started messing with this and i just wanna go cruisin around with my dad in our 4 speeds please ask any and all questions and i'll answer them as soon as i can. thanks in advance
What is higher RPM? (3000, 4000, 5000)
F.A.S.T/1969 SUPER BEE/383/AUTO/AVS 11.58 @ 117.98 1.71 60ft mph F.A.S.T Legal
1969 DART SWINGER/340(420CI)/6.52 @ 105.39 1.45 60ft (1/8 mile)10.22 @130.5 (1/4 mile)
Harry
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