Torque converter or flexplate? Any ideas will help....

[CHA53R]

hi there, i recently had my engine swaped over, got it home and theres a rattle... the guy who swapped it swore blind its a piston while you guys said flexplate... i have un done the brace plate from trans to engine and made sure the bolts on the torque converter were tight. theres a bolt from trans to engine missing and one was loose, i put the y pipe back on and started it up... the rattle in it is definitly the flex plate or torque converter.. the flex plate has a slight wobble and has bits of teeth missing on the edge... any ideas on what the rattle is? cheers..

[CHA53R]

anybody????

[2DIE]

Either a cracked flex plate or lose bolt is the most common cause. You will need to drop out the auto to check it properly.

[CHA53R]

had a torch under there and doesnt seem to be any cracks, it wobbles bad at low idle and the sound is worse, could anything in the torque converter be broken?

[Brett_jjj]

Id get another second hand flex plate and converter and fit them.

[CHA53R]

i have another flex plate off my old motor, might fish around for a torque converter then, is it worth getting a second hand one?

[revhead001]

When the flex plate cracks, it will crack between the bolts on the mating face where it sits against the crank. It is a commonly misdiagnosed problem. It does produce the same sort of noise under load as a flogged piston. But as said by previous members, the trans needs to be removed.

[Cheap6]

If it's wobbling then something is bent or broken. If you are going to swap the flex plate buy new bolts as they are torque to yield.

[CHA53R]

no probs, doesnt make sound under load but noticed the other day it stumbles a bit at 100km/h only makes sound at low revs... going to replace the converter aswell... do you think it could be bearins in the crank?