AMC86Kid Posted December 18, 2016 Share Posted December 18, 2016 ok so i have an 86 MJ and it has a 3.4 in it i was able to get the motor in there and running when the engine is in park it sounds fine but when i switch it to drive or reverse i get the weird sound you here i was wondering if anybody knew what it was http://tinypic.com/r/huqfi9/9 the video starts off with me starting the truck then about half way in the video i switch it to reverse from park and i get that sound then i switch it back to park also i can drive the truck as is so it does work i just have that annoying sound to deal with if i can fix that sound and the RPM gauge then the truck is pretty much ready to be teared down and cleaned up then put all back together what do you guys think Link to comment Share on other sites More sharing options...
AMC86Kid Posted December 19, 2016 Author Share Posted December 19, 2016 i went back and tried to listen for where the sound is coming from so i put blocks behind the tires started the truck put it in reverse and jumped out so i could get under the vehicle and listen it sounds like its coming from where the tranny connects to the motor so could it be the torque converter is not installed properly or its a bad one ? does that even sound like a probable cause Link to comment Share on other sites More sharing options...
sinkrun Posted December 19, 2016 Share Posted December 19, 2016 sounds like flex plate bolt rubbing? Link to comment Share on other sites More sharing options...
AMC86Kid Posted December 19, 2016 Author Share Posted December 19, 2016 do you mean that that the crank pulley bolts are loose and all i have to do is tighten them up and see if it stops like what this guy did http://www.cherokeeforum.com/f51/how-fix-flexplate-knocking-125547/ how many bolts should it have does anyone know or have a diagram of it Link to comment Share on other sites More sharing options...
omega_rugal Posted December 19, 2016 Share Posted December 19, 2016 clanking sounds from the tranny, only in R or D? mmm i would look inside the torque converter, something is wrong there... Link to comment Share on other sites More sharing options...
ParadiseMJ Posted December 19, 2016 Share Posted December 19, 2016 4 bolts on the torque converter. If you have a problem with the flexplate turning while tightening, take out the starter, jam a 3"x 3.5" (or so) block of wood in the hole to lessen the possibility of breaking a tooth. Link to comment Share on other sites More sharing options...
AMC86Kid Posted December 19, 2016 Author Share Posted December 19, 2016 its the bolts on the flex plate the connect to the torque converter does anyone know what the torque specs on those bolts are ? Link to comment Share on other sites More sharing options...
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