Anytime I let off the gas in my 85 BRAT without applying the clutch, I get a loud thud and jolt in the entire vehicle. The thud sounds like the engine just fell out into the road. The same thing happens when I hit the gas hard in low gear.

 

I can control it if I use the clutch to make sure the engine and tranny are at the same speed before I let off.

 

Anyone got any idea?

 

CAMOBRAT

Anytime I let off the gas in my 85 BRAT without applying the clutch, I get a loud thud and jolt in the entire vehicle. The thud sounds like the engine just fell out into the road. The same thing happens when I hit the gas hard in low gear.

 

I can control it if I use the clutch to make sure the engine and tranny are at the same speed before I let off.

 

Anyone got any idea?

 

CAMOBRAT

 

Well, I don't know the exact configuration of the Brat. But it sounds like a classic case of a broken transmission or motor mount.

I checked the motor mounts. I was told that I had a loose one. when I attempted to jeck the motor; the entire car was moved. I checked the bushings and found no problem.

 

 

I did find a problem with the transmission mount on the drivers side. All the bushing was gone. I will repair thi today.

 

We'll see.

 

Any idea how to tell if a motor mount is bad other than jack up the motor and see if it moves?

 

CAMOBRAT

I'm interested to know how you went.

I am also interested in the results of this thread.

 

 

I also have the same noise in my 86 wagon and have checked the mounts to find them good. I have also noticed the noise is more frequint when it rains. Guess which state I live in.:-\

I forgot what you call it but check the rod that bolts under the spare tire to the engine block it can make that noise when accel and decel. Mine did.

EJ20 conversion = no pitch stabilizer. Looks like my mounts are all good too.

That's what the problem is though. Lack of Engine Pitch Stabilizer. Problem solved.

all I do to check the engine mounts is open the hood all the way up, lean it against the wind shield.. grab the alt bracket and the oil fill neck and shake the @#%^ out of the motor. it shouldnt move but a 1/8 inch with the mount bolts tight