Hello all,

my fc3s is making a clunking noise from the rear, i want to say its someting with the diff. Also the car hiccups or jumps when starting in first and not revving very high.

Thanks

I have a 1988 gtu.

 

check the front differential mount.

 

How do I check that?

 

..first ..flip her over to see that she is 18...then kiss her neck..slowly...Whisper something sweet in her Ear..Like "sugar coated Raspberries"!!
WOOOPSS~!..sorry..wrong Forum...!!!(just screwin with ya..I gotta have fun sometimes..lol!)

Found with a tool called Search:
https://www.rx7club.com/2nd-generati...rtible-876959/

 

If you check more threads under the Guise of "pinion snubber or Differential mount" in SEC GEN Specific you should be able to get more info.
The Front Diff mount is at the ..well..the FRONT of the Diff..basically where the subframe cradles the Front of the diff.It attaches the diff to the subframe and is only rubber so it can shear and give you a clunk on accel and decel.

 

OK thanks, anything on the jumping/rocking when starting at low rpm?

 

sort of need more info on that.
Whether it is rpm engine related or drivetrain related.
Does the engine chug or does the car shudder when you let out the clutch causing jerking?

 

The engine just chugs.