Another Quadratrac question (problem)

[tthstrm179]

I have posted several questions about the QuadraTrac which has been a source of of several problems for me. Changed the chain as posted in another thread.
After about 40 miles, I checked the ATF (QuadraTrac converted to part time-uses ATF), and noticed METAL FLAKE in the fluid!

Pulled it apart and figured out what happened. When I assembled it, the chain was not running entirely straight on the gears. It was off by about 1 row of teeth, or a centimeter or so. This was causing the chain to run against the edge of the gear (the one that has the output for the low range). This was causing tiny flakes from the chain and gear.

Fortunately neither look like they have damage that will cause a problem, but here is the question.

What holds the gears in place to keep them from moving back and forth in their splines? I think this was an assembly problem on my end, but could it happen on its own?


Thanks

 

[lutry]

I will try to post a pic & explanation later, when I am at home.

 

[lutry]

If you have 1" play with the yoke not mounted, this is definitive too much,
is the trust washer of the front output shaft where it should be?
If it is missing, the diff assembly can move towards the front
output shaft which leads to substancially more play at the rear shaft
and the sprockets might not line up properly.
If the plastic thrust washer of the drive sprocket is missing, the drive sprocket
would run against the housing and additionally lead to a bad lineup of the sprockets as well.


Source of this pic is: http://jubileejeeps.org/quadratrac/qt_article_files/qtcomponents.gif

I would also recommend this site for informations.

 

[tthstrm179]

Thanks for the reply. It appears that all components are in place and in good shape.
So would the correct assembly procedure be to line up the gears with the output side even with the splines of the front yoke, ensure that the chain is running smoothly and straight, and then assemble? Am I correct that the tightening of the yokes is what keeps the sun gears in place and straight?

Thanks

 

[lutry]

I would try to get a factory SM, here you can find the whole procedure
how to properly reassemble the unit step by step. I always use this, it
really helps, because the Quadra-trac is missing in most manuals I know.
You can get a CD with the SM on ebay for less than $30.
There you also have a troubleshooting section for the QT.

If you could post some pics concerning your question, it would be a bit
easier to give answers.