14bolt FF New Gear Issues PART III - Bent Bearing Cage May Have Been the Problem

[ZombieK5]

Last week I closely checked the pinion housing and saw the outside bearing cage was bent (See 1st photo). Ordered a new bearing and installed it today.

Seems to have made a big difference. The high and low Backlash no longer "moved" teeth. The range I have now is 006 - 009. I'm ok with that.

Did my 1st pattern and it looks good.

Thoughts on the pattern??

ALSO, The pinion carrier has a single steel shim and NO RTV. will the torque on the housing bolts along with the shim effectively Seal it from fluid leaks??

 

[rampage]

So a bent bearing cage on your ‘77.?
Sounds like the work of @Bent77

 

[Wes Harden]

No rtv on that shim. It should seal. Provided everything is clean dry and no maring on mating surfaces

 

[Wes Harden]

Pattern looks pretty good.
I wouldn't have thought that the little tweak in the cage would effect run out. Good to know.

 

[ZombieK5]

Pattern looks pretty good.
I wouldn't have thought that the little tweak in the cage would effect run out. Good to know.

I was able to fit a feeler Guage around one side on the outside of the bearing with the bent cage. My guess is there was a 001 or 002 open tolerance or a "looseness" on one part of the bearing. Given the Preload there would probably have to be some "play" btwn the rollers and the race.

When I spun the bad bearing there was a definite sound as it rolled.

 

[ZombieK5]

So a bent bearing cage on your ‘77.?
Sounds like the work of @Bent77

Ha...nice

 

[Bent77]

Pfft. I’ve ran worse