Gaskets (diff.cover and others)

Post by **mac** » 11 Sep 2006 02:42 pm

Thanks Wouter,

If this material works ok producing more should be no problem - if you have problems getting any in 'flatland' let me know.

Mac.

Post by **sven360** » 12 Sep 2006 07:34 pm

Nice one Mr Mac.
Gasket came today- looks the business.

I'll report back when its on.

Post by **trix147** » 12 Sep 2006 11:50 pm

have you thought of PVC flooring, we use this at work to make gaskets on pipe couplings etc???

if you want more info please pm me as i cannot give to much info with the position im in

Post by **mac** » 13 Sep 2006 10:05 am

PM 'd

Mac.

Post by **trix147** » 13 Sep 2006 08:21 pm

mac wrote:PM 'd

Mac.

PM'd back

richy

Post by **mac** » 09 Oct 2006 01:27 pm

Still looking for another test subject for a 1.2mm diff cover gasket - is there really nobody wanting a free gasket for the trouble of fitting it ??.

Mac.

Post by **Carl** » 09 Oct 2006 05:07 pm

I'd be happy to test one Mac

Post by **Chris_C** » 09 Oct 2006 07:47 pm

I also need one, I have to do Fakes pronto... sorry, didn't see you were looking for test subjects! What do you want for one Mac?

EDIT: And Kar's tbh... I'll buy 2!

Post by **Raod** » 09 Oct 2006 08:36 pm

I'm in spain but if possible I want Two gaskets. Loose a little oil and needs to be changed .

PM me if you can mail me the gaskets.

Thanks.

Post by **mac** » 11 Oct 2006 01:33 pm

Gaskets Update:-

Right chaps - current situation re diff cover gaskets.

I now have both 1.6mm and 1.2mm materials out for testing. The 1.6mm seems to be holding up fine and has done some miles with Vart so we know the material composition is OK (the material has been used in automotive transmissions before so should have been suitable anyway) but it does have a different compressability factor to the original 'Centellen' hence my wishing to try differing thicknesses. At present I favour using 1.2mm sheet for the following reasons, 1. It is cheaper, 2. It is easier to cut/stamp, and 3. A thinner material will resist distortion of the cover plate rather better. Whilst the original material was thicker it also had lower compressability (similar to the 1.2 I am testing (well Carl will be testing).

Initially I only purchased enough materials for test purposes and don't want to invest in any more until it is decided which thickness to finally use.
I can then approach the manufacturer to try to negotiate costs. Since I shall never be buying huge quantities I don't have a great deal of scope but I shall try my best!!.

Until I know the costs involved I honestly have no idea what to charge per gasket (I will only want to cover the material costs and postage). The gaskets I have already sent out only cost 65-70p to send each. As for the material - If I can get the cost down a little from the test samples It looks like gaskets will be around the £4.00 mark.

So far I have 'orders' for x9 including your 2 Chris, and yours Raod.

If everybody can hold on a 'leeetle' longer until I'm sure the 1.2mm is OK I'll buy some bulk material in and get busy.

Mac.

Post by **Chris_C** » 11 Oct 2006 01:50 pm

Grand, fine by me! I'll just top mine up then until you are ready, as Fake's isn't leaking there anyway atm!

Cheers Mac, very impressed with the effect going in here, especially as it really is for the community (for those that don't know, Mac doesn't have a 300 anymore!)

Post by **Carl** » 11 Oct 2006 05:18 pm

Aye, good man Mac.

Gasket arrived in the post this morning, so will hopefully get it on at the weekend and will put the BX in the garage and use the 360 next week to put a few miles on her.

BTW, what diff oil should I use, I looked it up a while back and bought some but I cant remember what it is now. Yes I'm being lazy

Post by **mac** » 12 Oct 2006 09:23 am

Mornin' Carl - you're getting old - all the info is earlier in the thread !

"Volvo specifies Hypoid gear oil SAE90 (to API GL5 or higher) You probably won't find a straight 90 in most places so use SAE80W90.

Cover bolts are torqued to 9Nm (Haynes says 8Nm) It is ok to 'nip them up' a little if there is any seepage - but any more risks cover distortion (which I suspect is the main reason for diffs leaking anyway). "

Seriously though - this proves my point about a desperate need for a technical. searchable, archive. The info is a 'couple of posts' back (and even a regular like Carl misses it). Imagine all the info spread throughout the site that is forgotton or can't be found easily !!

Many thanks for your help on this Carl.

Mac.

Post by **Carl** » 12 Oct 2006 05:06 pm

I didn't miss it, I'm just a lazy bugger! Sorry

The techie archive is definately something we could do with sorting out though! We seem to be getting more and more new members, so it would be a useful addition for them to refer to!

Post by **Carl** » 14 Oct 2006 05:26 pm

New gasket is fitted. Not leaking at the mo, but I haven't got the allen key bits for my torque wrench, so havent be able to check the torque on the bolts. Have done them up fairly tight with a little 1/4" rachet for now, should be ok.

Top marks on the gasket Mac - fits perfectly!