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> Tips on getting the first gear teeth off?
Tdskip
post May 17 2019, 05:24 PM
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Hi guys-happy Friday. I was hoping to get some coaching on how to get the dog teeth off this first gear Assembly, they are incredibly worn down. No wonder the box jumped at it first
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dr914@autoatlanta.com
post May 17 2019, 05:30 PM
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there are special press tools OR cut it off


QUOTE(Tdskip @ May 17 2019, 04:24 PM) *

Hi guys-happy Friday. I was hoping to get some coaching on how to get the teeth off this first gear Assembly, they are incredibly worn down. No wonder the box jumped at it first
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KevinW
post May 17 2019, 06:20 PM
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I used a wood chisel, I was able to get underneath the dog teeth
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Front yard mechanic
post May 17 2019, 06:52 PM
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I also used a wood chisel to find my datum line
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Tdskip
post May 17 2019, 08:40 PM
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Thanks gentlemen, I’ve been reluctant to go to hard after it because I don’t want to damage the larger piece but let me see if I can cut a relief into it and get it off that way.

It looks like the new one just presses into place and has a mechanical tension fit?
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Valy
post May 17 2019, 11:16 PM
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QUOTE(Tdskip @ May 17 2019, 06:40 PM) *

Thanks gentlemen, I’ve been reluctant to go to hard after it because I don’t want to damage the larger piece but let me see if I can cut a relief into it and get it off that way.

It looks like the new one just presses into place and has a mechanical tension fit?

https://www.amazon.com/gp/aw/d/B0722LW5RW/r...=UTF8&psc=1
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Chi-town
post May 17 2019, 11:39 PM
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^^ this is the proper tool
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Tdskip
post May 18 2019, 08:23 AM
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Thanks for the link-always good to have a reason to buy a new tool.

So I’m assuming that that has a lip which catches the outside of the dog teeth to pull it out and away from the rest of the gear?
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Tdskip
post May 18 2019, 08:36 AM
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Ordered it - any of the local SoCal 914 mafia is welcome to borrow it as helpful.
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Montreal914
post May 18 2019, 11:46 AM
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Propably too late... P225 tool.

Attached Image

Part of the tool list you need to rebuild your gearbox. Add Dr Evil's video and have fun. (IMG:style_emoticons/default/smash.gif)

Good luck with your project (IMG:style_emoticons/default/beerchug.gif)
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Tdskip
post May 18 2019, 12:00 PM
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Thanks - looks like a quite different design than the other one.
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Tdskip
post May 31 2019, 09:25 AM
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Good morning.

I am assuming this is NOT the correct way to do this? OR - is this correct but just too small (threads don’t extend past the opening on this size).

Am I supposed to be compressing the center?

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ChrisFoley
post May 31 2019, 09:31 AM
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You really need the tool shown above or a well made facsimile. The tooth rings can be broken easily because of the metal hardness if the loads aren't spread out across the entire circumference of the ring.
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Tdskip
post May 31 2019, 09:50 AM
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Hi Chris - thanks for the response.

The dog teeth on there are scrap so not very concerned about saving them, but are you saying the main gear might be damaged too?
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ChrisFoley
post May 31 2019, 10:25 AM
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QUOTE(Tdskip @ May 31 2019, 10:50 AM) *

Hi Chris - thanks for the response.

The dog teeth on there are scrap so not very concerned about saving them, but are you saying the main gear might be damaged too?


That gear spreader will almost surely damage the main gear if you try to force it between the tooth ring and the gear.
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Tdskip
post May 31 2019, 10:27 AM
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Yikes.

So how does the proper Porsche tool will work so how does the proper Porsche tool work? It’s not jumping out at me on how it would separate the dog teeth from the main gear.

Thanks
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Montreal914
post May 31 2019, 12:31 PM
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Post #10 (IMG:style_emoticons/default/biggrin.gif)

First, get Dr Evil's video, get a beer and enjoy the first watching.
Then get the tools and parts.
Finally, bring the laptop to the garage, cover it with saran wrap, hit play/pause and rebuild along!

Good luck with your fun and rewarding project! (IMG:style_emoticons/default/beerchug.gif) (IMG:style_emoticons/default/smash.gif)
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Tdskip
post May 31 2019, 01:39 PM
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I am assuming that took holds the dog teeth and he you press the main gear down and away?
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Montreal914
post May 31 2019, 02:32 PM
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Look at this video...
at 3 minutes, he starts to use the tool.

https://www.youtube.com/watch?v=K5e2qlcZWZs

How's the rest of the box? 1st -2nd dogteeth and 1st slider, 2-3rd slider?

What are you using for gasket to close back up the box? The thickness has an influence on the pinion depth for the final drive.

Again, no affiliation, but the Dr. video has a lot of very good information. Just saying... (IMG:style_emoticons/default/poke.gif)
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76-914
post May 31 2019, 04:15 PM
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I used to loan my tool out. The last time I loaned it out was the last time, too. He loaned it to a, get this, 914 mechanic who proceeded to strip the synchronizers off his stock pile of gears. (IMG:style_emoticons/default/ar15.gif) Of course it came back with hammer marks all over it. (IMG:style_emoticons/default/headbang.gif) I don't blame the kid that originally borrowed it as he was young and working for the guy. What was he going to tell his Boss; NO? Some people. Anyway, that professional 914 mechanic went out of business 2 years later. Gee, I wonder why? (IMG:style_emoticons/default/lol-2.gif) Rant over.
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