Mopar thrust bearing failure

David Lee · 09-10-2017, 09:37 PM

do you have another transmission you can test with?

ss3011 · 09-10-2017, 11:38 PM

Are both the dowel pins that align the bellhousing still in the block . Sounds like something didn't go back together the same after the trans repair .

devo340 · 09-11-2017, 06:08 AM

Quote:

Originally Posted by David Lee

do you have another transmission you can test with?

Yes, used my spare transmission.

Coleydog · 09-11-2017, 01:02 PM

Could it be a balance issue after fixing the crank? I'll be running a 340 for the first time and I'm all ears on these small engines.

Hacksaw · 09-11-2017, 02:37 PM

Quote:

Originally Posted by Coleydog

Could it be a balance issue after fixing the crank? I'll be running a 340 for the first time and I'm all ears on these small engines.

Unlikely a balancing issue. A 340 is internally balanced and has different journal sizes than a 360.

James L Miller · 09-11-2017, 03:46 PM

Quote:

Originally Posted by Hacksaw

Unlikely a balancing issue. A 340 is internally balanced and has different journal sizes than a 360.

Except for the 1973 cast crank 340. It has a special balancer on the front, but probably could be internally balanced with lighter rods and pistons (that part should be easy with the stock 340 slugs). All the rod journals are the same size, the 360 has larger main journals than the other SB Mopars.

09-10-2017, 09:37 PM	#1
David Lee VIP Member Join Date: Oct 2007 Posts: 1,168 Likes: 487 Liked 346 Times in 126 Posts	Re: Mopar thrust bearing failure do you have another transmission you can test with?

09-10-2017, 11:38 PM	#2
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 910 Likes: 70 Liked 239 Times in 114 Posts	Re: Mopar thrust bearing failure Are both the dowel pins that align the bellhousing still in the block . Sounds like something didn't go back together the same after the trans repair .

09-11-2017, 01:02 PM	#4
Coleydog Senior Member Join Date: Jul 2014 Posts: 572 Likes: 39 Liked 53 Times in 38 Posts	Re: Mopar thrust bearing failure Could it be a balance issue after fixing the crank? I'll be running a 340 for the first time and I'm all ears on these small engines.