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Posted by: Mikey914 Oct 25 2014, 03:15 PM

This is a service that McMark had been doing for some time. It adds an additional sealing surface to the speedo drive bushing by cutting a channel in the OEM part. It required you to send in yours and he had to have a few to make it worth while, so it took a little time to get these together.

After speaking with him regarding this, we came to an arrangement, that would allow for new ones to be on the shelf for those that need them at the shop, or just want a local pick up. So you can buy from him or I will also stock on my site. Either way, it's better than the exchange program.

And by the way the OEM non modified part is over $150.

For those of you that are not quite sure what the significance of this is, it adds the extra seal to eliminate the nagging drip off the speedo angle drive.
It comes with the 2 o-ring seals and the internal drive seal.

These will be up on the site shortly to allow to combine with any other GB's Bump if you want to be notified when up.

Also one of those while you're down there with the clutch cable jobs.


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Posted by: Mikey914 Oct 25 2014, 03:19 PM

The process is pretty straight forward. However you will need to change your trans fluid, or at least strain if you have done so recently. As this is in a low point submerged in the trans fluid.

Once the old one is removed allow 30 min for it to drain.
Take the old geared shaft from the removed unit, as well as the washer and set aside.

Put the shaft into the new bushing, and set it as the base.


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Posted by: Mikey914 Oct 25 2014, 03:20 PM

Take the seal shown (the bottom side is shown) and set onto the shaft.


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Posted by: Mikey914 Oct 25 2014, 03:22 PM

Lubricate, I used WD40 as it's not real messy. Then using a socket (I used 13mm, but a 12 is a little closer) Gently tap the seal into place. It is a tight fit, but once seated is very difficult to remove.


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Posted by: Mikey914 Oct 25 2014, 03:24 PM

Don't forget to replace reinstall the aluminum washer. These are $9 from Porsche so don't loose it.


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Posted by: Mikey914 Oct 25 2014, 03:26 PM

Once you have the gear and seal in you can install so that the hole in the unit lines up with the bolt hole in the tail cone assembly.
I did use WD40 to install as it is a tight fit.




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Posted by: Mikey914 Oct 25 2014, 03:28 PM

PLEASE NOTE -
You do not have to take off the tail cone assembly to do this. I happened to have an extra part so it was easy to show this.

However if you do wish to I have the tail cone gaskets only for $5 on the site.

I have one last GB to list, and then I will be adding to the site, so bump if you are a +1, I'll notify everyone on the thread.

Thanks all!

Posted by: Cap'n Krusty Oct 25 2014, 03:28 PM

I can tell you that this WORKS! I've bought several of them from McMark and used them to fix transaxles that have suffered from years, if not decades, of speedo drive leaks. This should be part of every 914 trans overhaul, or even "freshening up".

The Cap'n

Posted by: pilothyer Oct 25 2014, 03:37 PM

Remind me for 2 of these.

Posted by: walterolin Oct 25 2014, 03:49 PM

One.

Posted by: McMark Oct 25 2014, 06:32 PM

Thanks for taking this over Mark. No more cores to deal with now!

Posted by: GermermanCarGuy Oct 25 2014, 07:07 PM

One please.

Posted by: restore2seater Oct 25 2014, 09:54 PM

Put me down for one.

Posted by: carr914 Oct 26 2014, 02:18 AM

I want 3 Please!

Posted by: Java2570 Oct 26 2014, 06:55 AM

Put me down for one, please!

Posted by: Dtjaden Oct 26 2014, 09:26 AM

I'll go for one!

Posted by: kid914 Oct 26 2014, 09:56 AM

So this is for trannies? 901- 915?

Posted by: Mikey914 Oct 26 2014, 11:09 AM

911- 1965-1973
914 all
It's equivalent to part # 901.318.243.12

I believe it's a 901 only

Posted by: wes Oct 26 2014, 11:09 AM

+1 for me

Posted by: 7275914911 Oct 26 2014, 12:13 PM

I need 1 of these plus in on Badge buy also....

Posted by: matt_o_70 Oct 26 2014, 01:44 PM

+1 I need to fix.

Matt

Posted by: Mikey914 Oct 26 2014, 06:09 PM

All PM's sent

Posted by: RobW Oct 26 2014, 06:13 PM

I'll take one of these too...

Posted by: Zimms Oct 27 2014, 06:56 AM

In for one.

Posted by: Mikey914 Oct 28 2014, 09:29 AM

Bump for Rhodyguy

Posted by: 914_3.0 Oct 28 2014, 09:32 AM

Love mine!! No more drips on the floor!! Thanks again McMark

Posted by: rhodyguy Oct 28 2014, 09:41 AM

Thanks mark.

K

Posted by: larryM Oct 30 2014, 10:28 PM

+1 for me too

Posted by: Marty Yeoman Oct 30 2014, 10:30 PM

Count me in for one too.

Posted by: 02loftsmoor Oct 31 2014, 07:01 AM

QUOTE(Mikey914 @ Oct 25 2014, 04:15 PM)

Posted by: rdauenhauer Oct 31 2014, 08:24 AM

One please

Posted by: SLITS Oct 31 2014, 08:55 AM

One here please

Posted by: Java2570 Nov 1 2014, 09:32 AM

Just got mine in the mail today! Thanks Mark & 914 Rubber for being such a great vendor for our 914's!!

Posted by: carr914 Nov 1 2014, 09:45 AM

QUOTE(Mikey914 @ Oct 26 2014, 08:09 PM)

Posted by: FL 000 Nov 1 2014, 11:22 AM

+1 for me

Posted by: Tedman5 Nov 1 2014, 01:03 PM

PM sent. +1 plus something else. Lol

Posted by: abes914 Nov 1 2014, 01:40 PM

+1 please. and thanks for doing this.

Posted by: Marty Yeoman Nov 1 2014, 08:00 PM

Am I waiting for comformation?

Posted by: Mikey914 Nov 1 2014, 10:10 PM

PM's sent to all so far.
I did a generic form letter to all with a link. As there are several other item you may wish to combine to save some money on shipping.

Thanks
Mark

Posted by: Daiberl Nov 1 2014, 11:35 PM

Add me for 2 please.

Posted by: lonewolfe Nov 1 2014, 11:55 PM

I'd like one please!

Posted by: spaceshuttle Nov 2 2014, 08:18 AM

I would like a couple.
Thanks

Posted by: Mikey914 Nov 2 2014, 01:52 PM

PM's sent to all THX

Posted by: 914bub Nov 2 2014, 02:29 PM

If it's not too late,I'd like one also.

Posted by: JamesM Nov 2 2014, 08:22 PM

i am down for a couple

Posted by: DMCF1Fast Nov 2 2014, 09:31 PM

I'd like one also if still available. PM'd you.
Thanks,
David

Posted by: hcdmueller Nov 2 2014, 11:08 PM

I will take one too!