Need a VW gasket measurement.....please :-)

purplepickup · February 21, 2006, 07:19:46 PM

There must be a Vee Dub guy here that might have a '60's preheat tube gasket laying around. I'm looking for an exhaust gasket for my chinese bike engines that is shaped like the preheat gasket but I can't find anyone around here that has one to measure.

The picture is a VW gasket I got off the web and I drew in the dimensions I am looking for. If anyone has one I'd appreciate it if they could measure it. The chinese exhaust gaskets aren't very good and I'm looking for something better.

enjenjo · February 21, 2006, 09:23:23 PM

You are not going to belive this George, but I threw away two of them last week! I couldn't see me doing another VW in the forseeable future. I'll see if I dumped the can in the dumpster yet.

unklian · February 21, 2006, 10:03:21 PM

Those are the Japanese dimensions ?
And you want to know if the VW is close enough ?

Is that correct ?

purplepickup · February 21, 2006, 10:39:05 PM

Quote from: "unklian"Those are the Japanese dimensions ?
And you want to know if the VW is close enough ?

Is that correct ?

Yeah, chinese dimensions...eyeballed with my dial calipers. Close enough is good...as long as the sealing surface is there. Both surfaces are just flat. I can tweak them a little if I have to. Hell, they might be a mile off but who knows, I might get lucky. I'm just curious since they are much better gaskets. I used to have some but I threw them away too.

Bruce Dorsi · February 22, 2006, 12:39:12 AM

I've never played with VW's, so I don't know if I'm talking about the same gasket.

I used some VW exhaust (?) gaskets when I put a turbo on my Lotus Europa. ......They look like your picture, and have a 1.263" inside diameter with a 2.25" c-c dimension. .....The mounting holes are elongated, and measure approx .330" x .360". .....They are made of embossed s/s with asbestos(?) core.

I have no idea if the preheat gasket is what I used, or are exhaust manifold gaskets similar, but larger?

unklian · February 22, 2006, 01:29:42 AM

I was going to ask on the HAMB

but posted on Volksrods.com instead.

http://volksrods.com/forums/index.php?act=SF&s=&f=2

purplepickup · February 22, 2006, 06:19:16 AM

Thanks for posting there Ian. That's a good place to ask.

Bruce, you probably used the muffler gaskets. They're made the same but larger. Thanks for the info tho.

Just a couple of pics of what I'm using these for.

I sold this one a few weeks ago.

Here's one I'm working on now. I'm doing a stingray too. In fact I've got 4 more in the works

(edit) I found a pic of one of the stingrays. I hadn't done much to it yet in this pic.

sirstude · February 22, 2006, 09:28:27 AM

George,

Are you bringing them to Bonneville this year so we all have pit bikes to ride?

Doug

purplepickup · February 22, 2006, 11:02:16 AM

Quote from: "sirstude"George,

Are you bringing them to Bonneville this year so we all have pit bikes to ride?

Doug

Depends on what I drive. I'll be lucky to fit one of them in my pickup. If I drive the van I might bring two but I'm also thinking about dragging the Harley out there and take an extra week after Bonneville just to putt around Utah.

I think if you want a pit bike to ride you might have to make one

unklian · February 22, 2006, 12:52:08 PM

One of the guys just posted these numbers:

Bolt hole 1-9/16" to centers

Center hole is 3/4"

unklian · February 22, 2006, 01:37:00 PM

Another guy just posted:

Bolt centers are 1.504"

Center port opening 0.733"

1FATGMC · February 22, 2006, 03:19:06 PM

Those are neat George

. I think you found a new calling

.

Maybe we could ride them to Lewis Lodge

.

c ya, Sum

purplepickup · February 22, 2006, 08:43:25 PM

Thanks a lot Ian and everyone. I got enough info to see that I could definitely make one work. I found a dune buggy shop near here that I didn't know existed and he had a couple gaskets for me to try. The bore matches better than the gaskets that came with the engine and just a little dremel work let the studs slip right thru.

Ian, I see you thanked the guys at Volksrods. I appreciate that.

Here's a pic

Sumner, I wouldn't mind going back to Lewis Lodge but I sure ain't riding a bike there. I think there were times I was on all fours just to get along that ledge.

sirstude · February 23, 2006, 09:14:32 AM

Sum,

One of these days I am going to get down your way. but you will have to drug me to get me on that ledge.

Doug

1FATGMC · February 23, 2006, 10:59:19 AM

Quote from: "sirstude"Sum,

One of these days I am going to get down your way. but you will have to drug me to get me on that ledge.

Doug

George not to steal your post, but I'm thinking about Lewis Lodge as a destination for anyone that wants to go there this year, but I would do it probably on Monday or Tuesday and keep Wed. open for the larger group when we could go to a site not quite as challenging. If not that many people show up we could do it on Wed. It looks bad, but when you actually go there it is not "quite" as bad as the pictures.

c ya, Sum