Subject: Six pinion question
From: ACRE
Date: 11/29/2003, 4:30 PM


 Mate if you find a way will you let me know!!

 BTW did I tell you that the overdrive is 2.45 - but only 4 planets.
 George (down under)

   I figure that you should be able to get a 7/16 bolt in the and
there are six of them and the Ross only had four 7/16 bolts holding
the four planet, I don't think Ross ever made a six did he.

### Not that I'm aware of !!

   I do like the idea of the plate as the area where the pins are is
unsupported unlike the area between the gears that have the web, just
like the idea of a 4130 plate as it gives piece of mind if nothing
else.

## I gree with you entirely there!!

   I have a 3 planet that I have been messing with and I just pressed
the main pin out sheering the role pin, it did rip a corner out of
the aluminum housing but I think the steel housing would hold up to
it and even if it didn't the small rip wouldn't hurt anything
especially with a 4130 plate backing it up.
   You can see the rip in this photo.

   Ken

Hey guys instead of ripping out those roll pins try coating a steel wire
with a diameter a little smaller than the inside diameter of the roll pin
with epoxy. Stick it in the roll pin and let it set up. Then pull it and
the roll pin out. If the roll pin is one inch long and the inner diameter
of the roll pin is .050 the force generated by a 3000 psi epoxy bond will
be 480
pounds roughly. Bond area is .050 times 3.1416 times one inch long or .16
square inches... times the 3000 psi  shear strength of epoxy or 480
pounds.

Clean the roll pin out with acetone before you try to bond to it.

Not my idea. I forgot who came up with it but it is a good one.

I tried a few things

Paul Lamar

Ken
See comments above as well!!

I agree with Paul that it won't take much to pull the little suckers out
once you can get hold of them.

A neat little tool would do the job so much better than epoxy,  which is a
little fiddly but could possibly work.

What would work is a bit of carbon wire, bent over at the end and hardened.
I tried this but I didn't have another piece to prevent it from pulling out.
Your damaged housing is an indicator of the pin removal problems - I don't
like damaging things if it's unavoidable.

There must be a tool available -what do the Ford Transmission guys use !!?

BTW Ken the shaft on the 2.85 is 3/8", which would bring the bolt diameter
to about 1/4"
 The shaft on the 6 planet 2.17 steel housing is 1/2" because the planets
are a lot bigger!!

Paul, If you like I could do-up a short paper on Ratios, if you like - might
save a lot of explaining to any new chaps who might ask.

George (down under)


Sure. That would be great.

Paul Lamar
 
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