checkmate1996

Gents,

What's the best way to remove the dogteeth and replace for 1st-third?

I'm in the middle of rebuilding now!

I appreciate the help!

Landseer

I don't know, but can you PLEASE take pictures of this major endeavor for the rest of us.

Chris

Typical that the owners manual only mentions replacing the syncro rings and nothing about the dogteeth, can't you cut of the old teeth and use a press to put on the new ones?

Chris

checkmate1996

LOL - Yeah the WSM sort lost that part in translation I think!

Chris, I think that's my mechanic's strategy. I'm going to find out tomorrow. So far that seems to be the only major hang up.

I'll report later on this one since this is one of those few topics I couldn't find an answer through the search function either.

Chris

Well good luck, the only reason I mention it is that you can do that with the 901 gearbox if you are too cheap to pay for the tool to remove ($90), I see no mention of a tool for the 928 anywhere and I do not see a lip on the dogteeth where it, or something similar would engage.

You should have left a digital camera with your mechanic, this is one of the poorest documented areas of 928 repair.

Chris

BC

Chris is correct IIRC. I did not do this, but I may have made a mistake.

checkmate1996

Correct, we didn't see anything either to explain this. Even more funny, some of their blow-up diagrams really didn't match up either.

You can't press them out, since there is no way to get underneath it and there is no lip on the top side.

Unfortunately, my mechanic is also the owner of his own shop so time is precious. I'm hoping just to get a good explanation....

Mike Simard

Hi.
The only way to remove those dogs from the larger gears is to machine them . I've used a milling machine with a carbide cutter and make a cut to break the ring.
Good luck

checkmate1996

Yes, according to my mechanic, this is exactly the idea of what you have to do and very similar to what he did. Plus, he had to do the freeze/heat up technique and use a heavy duty press to get the dogteeth back in. All in all, a PITA according to him. If you are rebuilding your transmission and you want to do the dog teeth and not buy a gear set, it still looks like you are going to need to take to a mechanic with the right set of tools to get this part done.

I also learned that the original needle bearings on the main shaft were a split design, however, the revised part# for the needle bearing is a solid design.