vibration after torque converter install
03-28-2008, 05:59 AM
#1
Senior Member
DYNO TECH
Thread Starter
Join Date: Aug 2007
Location: Colebrook Connecticut
Posts: 425
vibration after torque converter install
problem is a slight vibration @around 4200 that i think is the torque converter.
im thinking that maybe reclock the converter to the flexplate ?
you think that might help?
im thinking that maybe reclock the converter to the flexplate ?
you think that might help?
03-28-2008, 06:09 PM
#2
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RACING JUNKIE
Join Date: Jan 2006
Location: La.
Posts: 2,890
If it's possible, i would slide the trans back with the converter engaged to trans. enough to get an indicator up to the hub and check run-out while spinning the converter by hand, more than .002 it could be the problem. If there is no run out open up the flywheel hole 1/64" in case there is a bind.
JMO
Zip.
JMO
Zip.
04-01-2008, 11:00 AM
#7
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Join Date: Aug 2005
Location: Rifle Colorado
Posts: 585
Is it internally or externally balanced? Stock 400 is external but the trend is to internal balance them for hp use. Flexplate and dampner are different depending on which way which way it's balanced....
04-01-2008, 12:40 PM
#9
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RACING JUNKIE
Join Date: Jul 2007
Location: Florida
Posts: 635
If you are using stock or stock replacement pistons , rods and crank you need the balancer and flexplate/flywheel for a 400. If any have been replaced with aftermarket parts the weight changes and the assembly needs to be balanced.
04-01-2008, 07:23 PM
#10
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RACING JUNKIE
Join Date: Sep 2007
Location: Montvale, VA
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Originally Posted by bjuice
do you have the converter shimmed up to the flex plate? if so how much?
ops: Both converters I've run needed same amount.Seems like alot to me.Half tempted to order next converter setup for a mid-plate just to take up the slack
