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Thu Oct 13, 2011 7:05 pm

I am assembling the rear end of my kit car and I need some assistance with a few of the items. I am getting conflicting information and need some clarification

I am using a 66 transaxle with short shafts and short splines. There are a few parts that I am being told are not neccasary.

First the use of an o-ring on the transaxle side under the retaining ring, in additon to the paper gaskets/shims. Does anyone use this o-ring? Where can I get them? Second on the wheel side the "oil deflector" or "oil slinger" that goes directly under the bearing cover and over the oil seal (not the one listed as washer). Does anyone use this? I have been told that if I dont have a oil drain hole in the bearing cover to use one. However if I do have an oil drain hole on the bearing cover this is not neccasary? Does anyone have any concrete information on this? My covers do not have visible drain holes. I cant find them anywhere?

Thanks
Bob

Thu Oct 13, 2011 10:07 pm

If you have bearing covers without the drain holes, those had no outer slinger washer, but they DID have an oil slinger that fit into the drum to keep any stray oil off the brakes. If you have breaing covers with the drain hole, those need the large slinger washer to keep any oil in the cap so it can drain out the hole in the cover and through the hole in the backing plate.

The O-ring was supposed to be used with both the early and late setup. It's the paper gasket that was added when they went to the weep hole bearing cap. Although I always used both even when my 62 still had the original drum-slinger style setup.

The seal kit contains the small and large O-rings, and the paper gasket, and the throwaway metal washer that's used as a seat for the small O-ring. http://www2.cip1.com/ProductDetails.asp?ProductCode=VWC%2D311%2D598%2D051

Early, then Late:

Thu Oct 13, 2011 10:21 pm

Here's a picture of a bearing cap with the drain hole (from the gallery)...

There should be a matching holes in the brake backing plates. These are weep holes to allow excess oil out of the drums for various reasons.
Depending on what spacers and deflectors you need, you may have to go to several sources as no one single place has them all shown in their online catalogs.
Here is the basic seal kit...
http://www.airheadparts.com/vintage-vw-parts/rear-axle-wheel-bearing/seal-kit-rear-axle-111598051-a

Here is the kit with spacers, not sure if it comes with a deflector, you would need to contact them and ask first....
http://www.airheadparts.com/vintage-vw-parts/rear-...1598051-gr

CIP1 shows a kit that looks like it has the deflector in it, but no spacers...
http://www2.cip1.com/ProductDetails.asp?ProductCode=C24%2D111%2D598%2D051%2DA

I've also read recent post that said the Wolfsburg West kits now come with a deflector as well, but they are not shown in their listing here...
http://www.wolfsburgwest.com/cart/DetailsList.cfm?ID=111598051A

Fri Oct 14, 2011 6:10 am

Nice I have an early set up at the wheel no secondary washer style oil deflector. What about the rubber o-ring at the tranny end? Under the paper shims? Do you guys use this as well? I will also give Wolfsburg west a call today and see what I can get from them.

Thanks
Bob

Fri Oct 14, 2011 6:52 am

Look at the last post in this one :
http://www.thesamba.com/vw/forum/viewtopic.php?p=5587198&highlight=#5587198

Fri Oct 14, 2011 7:17 am

Flavio wrote: Look at the last post in this one :
http://www.thesamba.com/vw/forum/viewtopic.php?p=5587198&highlight=#5587198
This post is regarding the side cover on the transmission, not the axle bearing cap.

Okay, first picture doesn't look like it has it, but this picture shows the cover with a large chamfer on the inside edge. This is to accommodate the large o-ring...

So, yes, if you have this style cover you use the o-ring and one gasket "on the tranny side".
If your covers don't have a chamfer, then use the gasket only.

Fri Oct 14, 2011 7:33 am

61 SNRF.
Besides the bearing cap, I think that the PO also want to know about IF the side cover (transmission side) has or not an O-ring ?

Fri Oct 14, 2011 10:04 am

Thank you so much for all the help. I can now get the oil deflector (slinger) but my last question (which I am was not asking correctly) is in regards to the how the axle tubes mount to the tranny. The large tube holder which is bolted on with 6 nuts to the 8 mm studs coming out of the tranny. Under here are paper shims or gaskets to allow free movement of the tube. However in the bently manual it also shows an o-ring. Does anyone use this o-ring?

Sorry I guess I am still new at this and did not ask it correctly

Bob

Fri Oct 14, 2011 11:07 am

Where there is 2, 3 or 4 paper gaskets there is no O-ring. Just the paper gaskets.
And yes, this is the part with the 6 nuts. And.... also, like 61 SNRF has said .....you must "tune" the drag between the concave part of the axle tube and the white plastic "flower" adding or removing paper gaskets.
Each time you experiment that drag you have to torque the 6 nuts to "feel it". If too much drag you must add a papper if too loose you'll remove one paper gasket.

When doing these tests the papers must be dry. Only after the "tuning thing" is right, you should aplly some good quality RTV only in the metal surfaces...torque it to specs and you're done.

Before starting this work you must inspect the axle cover plates specially near all the six holes and look for distortions mainly around them....
All the surface must be perfectly level, OR, later, you will have leaks.
Those distortions are caused by excessive torque over the six nuts....
In mine I used flanged nuts, because they aplly the torque more evenly and on a bigger surface, right ?
I hope this helps.

Fri Oct 14, 2011 11:12 am

Yours is all 66 you said? They didn't start using the O-ring until mid 67. Your setup should be just the paper gasket stack. The Bentley does talk about the O-ring, note the chassis number.

Fri Oct 14, 2011 11:25 am

Ahh thank you. for that!!!!! Yes mine is 66 however I am building a kit car so no chassis number to speak of. Perfect, I will leave it out (couldnt find one anyway :) )

Does anyone use sealant on these?

Fri Oct 14, 2011 1:19 pm

THis is all making so much more sense now!! Last question I hope for a while. The grease caps what size bolts on those 10mm but what pitch?

Fri Oct 14, 2011 2:35 pm

Using sealant on the gaskets - yes that is one of the only places I'll use silicone RTV sealant on Bugs. It's not uncommon for the side covers to be a bit warped around the bolt holes, and it's a pain in the ass to go in and try to reseal them later on. Assemble it dry while you try to find out how many gaskets you need in there to set up the axle tube endplay, but once you have and on final assembly, use RTV on the gaskets.

Cant remember the pitch on the bearing cap threads offhand, I think they are standard 1.5 though. Those bolts have special smaller than standard heads though, 14mm.

Fri Oct 14, 2011 3:12 pm

Flavio wrote: Look at the last post in this one :
http://www.thesamba.com/vw/forum/viewtopic.php?p=5587198&highlight=#5587198
Flavio, as I pointed out, the topic and information in this post concerns the transmission side cover.

And, sorry for any confusion but I don't think it was me who said this...
"And.... also, like 61 SNRF has said .....you must "tune" the drag between the concave part of the axle tube and the white plastic "flower" adding or removing paper gaskets."
shifted, I hope you have enough information to complete your task now.
Good luck and best wishes for a good result.

Fri Oct 14, 2011 4:49 pm

Thank you to all for the information!! I do have the information I need to assemble this. Also sorry for not calling the bits and pieces the right names, I know that added a little to the confusion.

Yes the bearing caps are 10mm 1.5 pitch. standard 17 mm heads dont fit or at least they fit tight so I will need to hunt these down.

I will not use a rubber oring on the axle tube retainers just paper and a little sealer.

Also no inside oil deflector as I have the older style and I am installing a disc brake kit that will also not use an oil deflector.

whew Axle tubes are tricky. I thought this was going to be easy!

Fri Oct 14, 2011 5:06 pm

Without any slinger provision back there, it's hard to say how much you will or won't have in the way of leakage. Usually not much, hopefully your disc brake setup won't get slimed in a bad way.

Me, I'd probably just convert to the late style setup - which, of course, requires the late style bearing caps, a hole drilled into the backing plate, and the slinger washer.

-Andy

Fri Oct 14, 2011 7:08 pm

If you use Disk brakes you use the provided backing plates which dont have accomodations for a weep hole.

Sat Oct 15, 2011 2:30 am

61 SNRF.
You're absolutely right. I am sorry for my mistake about saying that you've said what you have not said....
Some confusion about the right names.....my fault.

And, sure, I hope that everything is more clear, now.

Thanks for your understanding

Sat Oct 15, 2011 10:02 am

Flavio wrote: 61 SNRF.
You're absolutely right. I am sorry for my mistake about saying that you've said what you have not said....
Some confusion about the right names.....my fault.

And, sure, I hope that everything is more clear, now.

Thanks for your understanding
You're welcome, and I apologize as well if I was rude in pointing it out.
We are all just trying to help here.
Thank you for your genuine support.

Sat Oct 15, 2011 11:20 am

I've never dealt with rear disks before, I've seen pictures of the caliper mounts, I wasn't sure if you could drill them out for a weep hole or not.