Reutterwerk
Go Back   Reutterwerk > Blogs > A newbie tries to fix his first transmission

Well, a few days ago one of the parts of my car wore out. It's got 213k miles on it (at least, odo went bad at 204+). I've done lots of work on the car since I got it two years ago and I guess if it had to be something, this isn't the worst thing that could have happened.

Generally when I have had transmission problems in the past with cars I'd take it to a specialist. There's a local guy I trust and whenever I see a diagram of a transmission it just looks like a swiss watch with all those gears and stuff, so I've been intimidated to try anything in there.

With this car I promised myself I'd do all the work on it (since it was purchased as a project anyway) and I've learned to do lots of new stuff from clutch replacement to carpeting to some electrical things to seat re-upholstery and all have been interesting and fun to do (more or less ).

So now down to the work at hand: The other day the stick in my car didn't give me any resistance when I tried to go into the 1-r shift plane. It had previously been really weak when returning from 4-5 to 2-3, so I think it was wearing out and it finally went. There is also a leaf-type spring that I've read usually wears out for the reverse lock-out function as well, so I plan to replace both of these items.

I've had no shifting issues so I don't plan to reinvent the wheel and although some would say it's foolish with this many miles, I don't plan to buy a rebuilt or even rebuild it all myself.

So my notes will be here as I work through it, please feel free to comment if or offer up advice or assistance.

Here's an annotated and slightly cleaned up diagram from the WSM.

Rate this Entry

Diff removed. But wait, can't I just replace the spring?

Posted 11-09-2008 at 08:46 AM by Mike Frye
The other day I realized that the spring I need to replace can be done without completely disassembling the trans. It can be maneuvered out though a gap in the shafts so I didn't even need to remove the differential!

So I got that figured out and have been trying to work out solutions to two issues.

1. How to get the shift lever to return to the 2/3 plane when the 'old style' spring returns it to the 4/5 plane.
2. How to modify or strengthen this spring so that it doesn't break again in a few years.

For the first one I'm actually thinking of adding some kind of mechanism to the top of the box and the shift coupler. I'm not sure how I'll do it, whether it will use a coil spring or a leaf spring but I'm pretty sure I can do it and it will be able to work without requiring any major mods.

For the second one I think I have to take a leap of faith. The problem of the breaking springs is (IMO) the shape of the hole for the little insert that the roller rides on.

If you look at these two pics you'll see the spring fails at the corners of the rectangular cutout every time.
Click the image to open in full size.

So my fix is going to address this issue. If the ends of this cutout were rounded off, it would distribute the stress evenly rather than focus it at the corners.

I'm going to try to drill a hole at the end of the cutout and try to smooth it out so that it's oblong instead of having points. IMO this will make it last much longer.
Total Comments 0

Comments

 

All times are GMT -4. The time now is 06:12 PM.

Kirsch designed by Andrew & Austin


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
DTO Garage vBulletin Plugins by Drive Thru Online, Inc.
Copyright © 2008 - 2024, Reutterwerk.com