How to bummer the weekend before it starts...

patssle · 07-01-2011, 08:12 PM

So after a couple weeks of tearing the CIS off for a Weber conversion, finding out I needed PMO manifolds, getting those ordered, taking off the engine shroud and cleaning and painting it, a rebuilt alternator and powder coated fan, removing the intake studs, then installing the manifolds, 40IDA3C carbs...

Then today, finally, got the fuel lines on, hooked up to a carb fuel pump, weeks of work to spend the weekend tuning....turn on the pump...

FUEL LEAK at the gaskets above the needle valve on one carb....

Bummer.

PS. Anybody in Houston have extra Weber gaskets?

(#6 on the parts list)

jpnovak · 07-01-2011, 09:09 PM

I have some in Austin.

That is just a fiber washer. Check your local small engine supply or even a good Old School hardware store. you might be surprise.

lane912 · 07-01-2011, 09:21 PM

buy a extra, put it on the shelf.
might be there for years
loyalty

john walker's workshop · 07-02-2011, 06:24 AM

the brass nut can be a bittch to get off. grind the leading edge of a 16mm 6 point socket so it's flat, so the tool contacts the nut as much as possible. may come right off, may fight you.

patssle · 11:07 AM

I got the nut off with no problem at all. Fiber washer eh? I shall start looking, thanks!

patssle · 07-02-2011, 11:08 AM

Whoo hoo! Found them at ACE Hardware in the plumbing section. Will give them a try tonight and hope there arn't any other leaks.

mossguy · 07-02-2011, 11:31 AM

That's cool, Pattsie! ACE is my go-to place for Porsche, Volvo, and Land-Rover parts.

Bob Ashlock · 07-02-2011, 11:49 AM

The soft aluminum oil drain plug washer is also a perfect fit for under the Weber float adjust cover-nut !

patssle · 07-02-2011, 07:43 PM

No luck, still leaks with new (slightly thicker) fiber washer. But I took a very close look at the surface of the screws, they are not smooth, very slight gouges.

So I will try to get some new ones of those. I have some orings on them at the moment, but they aren't made for fuel. But they are working.

Has anybody used a better gaskets than fiber washers? They don't seem to dig in or cushion very much, there has to be better seals for when the surface isn't perfectly smooth?

vag_tech · 07-02-2011, 07:57 PM

A copper or aluminum crush washer should do the trick. Just like whats used on the banjo bolts for the CIS fuel lines.

Quicksilver · 07-02-2011, 08:05 PM

Quote:

Originally Posted by vag_tech

A copper or aluminum crush washer should do the trick. Just like whats used on the banjo bolts for the CIS fuel lines.

I would make a slight addition: Put a bit of Locktite 518 anaerobic gasket replacer on the top of the washer so it fills the scratches on the screw. Should work for an indefinite period of time until you can get an unmarred screw.

lonewolf · lonewolf's Garage

Quote:

Originally Posted by vag_tech

A copper or aluminum crush washer should do the trick. Just like whats used on the banjo bolts for the CIS fuel lines.

That's right . I don't believe your suppose to use a fiber washer there .
crush ones because those are suppose to be very tight

rattlsnak · rattlsnak's Garage

What kind of fuel pressure are you running? I'm assuming you put a regulator in line..

Flat Six · Flat Six's Garage

Quote:

Originally Posted by lane912

buy a extra, put it on the shelf.
might be there for years
loyalty

Wow. Weber haiku. Cool.

expernet · expernet's Garage

I had the same problem , you nee the perfect size aluminum crush washers. Porschetechnik.com has alot of the weber parts you can't find easily.