boke something in my transaxle

May 25, 2004 4 Replies

Hello,



I was backing my sandrail up onto its trailer, it stalled, I restarted it, popped the clutch, and heard a loud "snap!" from the transaxle. Now it has no gears whatsoever (1-2-3-4 and reverse are all dead). I can open the transaxle oil filler port, and when I spin the tires by hand I can see the gears turning. The shifter seems to work. When turning the wheel manually,



1st is clearly harder to turn than 4th, as it should be.

However, when I start the motor, absolutely nothing turns in the transaxle (as far as I can see into the oil filler port).



The whole thing is acting as if the clutch is on. I've tried operating the clutch, and it feels exactly like it should.



I'm going to pull it all apart this weekend and have a look, but I was wondering in the meantime if anyone has an idea what went wrong? My guess would be either that something broke in the clutch, or in the input shaft to the transaxle.



The tranny is a type 1 swingaxle, and it's powered by a Mazda rotary engine (the rotary adapter uses a modified VW flywheel and a kennedy stage



2 clutch, heavy duty pressure plate, etc)

Thanks!


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Longshot, but the tranny input shaft has a splined coupling on it. If the snapring comes off, the coupling can slipp out of engagement/. If you pull the engine, you'll be able to tell.

Although a minor repair, the axle/sidecover has to come off.

Anyway, that's my guess...

Speedy Jim

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Best thing that could have happened was that the clutch disck center hub broke loose. Drop the engine, replace clutch disc, and you are back... umm.. off the road.

Jan

Well, I got as far as pulling the motor. As soon as I did, I found that the input shaft to the tranny was loose (I was able to pull it out several inches).

What's the easiest way to get the swing axle tranny out and disassembled? I assume it's easiest to pull it with the axles attached, and then start tearing things apart on the bench? Is there a preferred way to unhook the shift linkage when pully the tranny?

I tried to get the snap rings loose so I could remove the axles while the tranny was still in the sandrail, but I didn't have much luck. I used a pair of ring pliers and was able to squeeze the ring in all the way, but it still didn't want to come out -- are there any other parts I need to remove? seals, etc that might be in the way of the ring? I suppose it will all be easier once I get the tranny out and onto the bench where I can get a better look at whats going on in ther.e

Assuming the coupler / reverse gear is what broke, do they make a sturdier part so it won't happen again?

Is there a list of recommended parts to replace in the tranny while I've got it torn apart? seals, o-rings, bearings, etc?

Thanks, Scott

Yes, indeedy.

Then go here for a start:

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Prolly more good info here:

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and:

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Speedy Jim

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