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Engine Specific Info and Questions => IDI Engine => Topic started by: jaed_43725 on July 27, 2013, 07:02:02 pm

Title: Vacuum pump o-ring?
Post by: jaed_43725 on July 27, 2013, 07:02:02 pm: I need either the size or preferably P/N for the o-ring that is under the lid? Or possibly if there is another o-ring that is the same one? Any help is greatly appreciated.
Title: Re: Vacuum pump o-ring?
Post by: theman53 on July 28, 2013, 05:42:47 am: I know I have used the IM seal carrier oring and it worked fine. Dealer has the correct one as I have used it too, but I don't know the number sorry.
Title: Re: Vacuum pump o-ring?
Post by: jaed_43725 on July 28, 2013, 07:13:19 am: I found this: "coke
Post subject: Re: Front Crank Seal ReplacementPostPosted: Sun Apr 10, 2011 12:06 pm
Camshaft, Crankshaft and IM shaft oil seal are all the same seal. The intermediate shaft seal carrier o-ring should be green and is usually very thin."

Is this correct?
Title: Re: Vacuum pump o-ring?
Post by: jaed_43725 on July 28, 2013, 09:48:25 am: The intermediate shaft seal carrier o-ring may be the thing I am looking for. But those oil seals are not even close.
Title: Re: Vacuum pump o-ring?
Post by: theman53 on July 28, 2013, 10:37:36 am: Right the green o ring that is under the IM shaft seal carrier *seal carrier o ring as stated before* is what I used in one of my vane pumps. VW dealers have the real o ring and the IM shaft seal carrier. I used the IM one as I had 3 laying around for my build and when I took the one out and held it up to the new green IM one it looked the same. I don't know if it is or not but it worked for me. Your results may vary.
Title: Re: Vacuum pump o-ring?
Post by: libbydiesel on July 28, 2013, 11:09:35 am: IM shaft seal carrier o-ring is a bit large in diameter. I've gotten viton ones from 'the o-ring store' online. Part number v2.00x055 fit perfectly.
Title: Re: Vacuum pump o-ring?
Post by: jaed_43725 on July 28, 2013, 01:10:20 pm: Is this it? http://www.metalmanparts.com/product.sc?productId=104
Title: Re: Vacuum pump o-ring?
Post by: libbydiesel on July 28, 2013, 01:58:01 pm: Sure, if you want to get the o-ring that is too large instead of the one that is a perfect fit that I posted above...
Title: Re: Vacuum pump o-ring?
Post by: jaed_43725 on July 28, 2013, 02:35:29 pm: If the dealer doesnt have it, or I cant get the viton one at a hydraulic supply then I am gonna order the one you suggested libby.
Title: Re: Vacuum pump o-ring?
Post by: libbydiesel on July 28, 2013, 04:06:18 pm: Here's a link just to make it easier.

http://www.theoringstore.com/index.php?main_page=product_info&cPath=368_65_68&products_id=21366
Title: Re: Vacuum pump o-ring?
Post by: jaed_43725 on July 29, 2013, 09:13:29 pm: Resolved the issue hopefully. I bought the factory o-ring from the dealer. I will pick it up on Wednesday and let everyone know how well it worked.
Title: Re: Vacuum pump o-ring?
Post by: jaed_43725 on August 02, 2013, 10:07:24 am: First o-ring was to big. 2nd is correct. But does anyone have the torque spec for the lid? I really need that to get my brakes back.
Title: Re: Vacuum pump o-ring?
Post by: jaed_43725 on August 02, 2013, 05:16:29 pm: Anyone at all know the torque spec?
Title: Re: Vacuum pump o-ring?
Post by: TylerDurden on August 02, 2013, 06:41:47 pm: I just snug em down.
Title: Re: Vacuum pump o-ring?
Post by: jaed_43725 on August 03, 2013, 05:05:59 am: I guess I will snug them down and get a measurement off of one and use that for all 3.
Title: Re: Vacuum pump o-ring?
Post by: theman53 on August 03, 2013, 06:06:35 am: Torque for most any 6mm bolt is like 7ft/lbs if you are going dry. Less if it is low carbon and more if it is 12.9 grade. It would probably be easier to use inch pounds to get a more accurate reading. Also, for this application I have not torqued them, I just snugged them up. I am all for torque values though so if the Bentley has them I would use them. If the Bentley doesn't have a spec then it really isn't needed. It has specs for everything.
Title: Re: Vacuum pump o-ring?
Post by: jaed_43725 on August 03, 2013, 09:19:51 am: I torqued to 10 ft/lbs and installed. And now it works great. The only thing I did was replace the o-ring on the bottom and the one under the lid.