SuzukiSavage.com - Print Page

SuzukiSavage.com
/cgi-bin/YaBB.pl
General Category >> Rubber Side Down! >> Raptor leaking
/cgi-bin/YaBB.pl?num=1432265701

Message started by zipidachimp on 05/21/15 at 20:35:01

Title: Raptor leaking
Post by zipidachimp on 05/21/15 at 20:35:01

Put a shot of gas in the tank to check the new raptor, and sure enough it leaks. Not much, but enough to scare the landlord if he sees it.
The gasket with this unit looks very thin. If I really squeeze it down, will that hurt or help? Sealant? 8-)
Thanks.
ps: by 'gasket' I mean the thin rubber perimeter seal!

Title: Re: Raptor leaking
Post by Flint on 05/21/15 at 20:47:16

When I took the factory petcock off mine the paint was flaing a bit where it had touched. I scraped the tank bare and brushed on Aviation Gasket Cement before I put the new one on.

Title: Re: Raptor leaking
Post by Art Webb on 05/21/15 at 20:52:29

I just rubbed off the flaking paint with my finger an put the thing on, no leak

Title: Re: Raptor leaking
Post by KennyG on 05/21/15 at 20:54:20

Chimp,

Did you put any kind of lubrication on the gasket?

I usually use a dry lube on gaskets like the one used on the Raptor petcock. Any kind of lubrication will keep the gasket from "bunching" when you tighten the bolts down.

And, as Flint mentioned make sure everything is clean.

Kenny G

Title: Re: Raptor leaking
Post by hotprops on 05/21/15 at 21:05:14

fuel lube ,you need it in your tool box . try aircraft spruce . it goes under many names . call them

Title: Re: Raptor leaking
Post by zipidachimp on 05/21/15 at 21:05:34

Surprised that suzuki wouldn't clean the mating surface. Yes, I put it on the painted surface, my bad. It's now clean and I'll try some kind of sealant.
Thanks. Any 'brand name' of a sealant? 8-)

Title: Re: Raptor leaking
Post by Dave on 05/22/15 at 03:14:02

RTV and most gasket makers are not gasoline/fuel proof. As a test once I put a small hole in a soda bottle and covered it with the RTV gasked material and let it cure overnight. The next day when I put gas in the bottle, the RTV was leaking within 30 minutes.

This one is:
http://www.permatex.com/products-2/product-categories/gasketing/gasket-sealants/permatex-permashield-fuel-resistant-gasket-dressing-flange-sealant-detail

I also found another product at my local auto parts store but I can't remember who made it ........you need one that is gasoline/fuel proof. Be careful not to get one that is a "repair" for fuel tanks....as it most likely will be an epoxy and permanently attach the petcock to the tank.

Title: Re: Raptor leaking
Post by justin_o_guy2 on 05/22/15 at 04:18:46

The oring sticks up almost a sixteenth, nothing but head pressure.
A straight, smooth mating surface should not leak.
Make sure the oring is sticking up out of the groove in the petcock and inspect the mating surfaces. No goo should be needed.

Title: Re: Raptor leaking
Post by Art Webb on 05/22/15 at 09:36:38

485751564B4C7D4D7D45575B10220 wrote:

Agreed, a clean, flat mating surface should be the only requirement

Title: Re: Raptor leaking
Post by zipidachimp on 05/22/15 at 14:21:36

my o-ring does not stick up much, in spite of having a yam part#. I think that was part of my problem. Off to the store now to find some goo.

Title: Re: Raptor leaking
Post by gizzo on 05/22/15 at 15:45:27

Can you still get "Stag" jointing compound over there? That's the only "goo" I trust to be 100% fuel proof. I needed to make a couple new cork washers for the fuel tap bolts to get mine stop leaking.

Title: Re: Raptor leaking
Post by justin_o_guy2 on 05/22/15 at 16:13:18

I wonder if Yamaha sells them. If you didn't get a Gin You Wine
Yamaha petcock maybe you got a skinny gasket, maybe the groove is a bit deep..

Title: Re: Raptor leaking
Post by swing69 on 05/22/15 at 19:43:18

clean the tank surface - no bumps or flakes allowed.

I ALWAYS dress gaskets (overkill, yes, but I used to be a british bike owner who hated oil leaks).

For FUEL, I used Hylomar - now its OWN brand, not sold by permatex. However, permatex now sells a Hylomar "clone". see: Permatex 85420 Permashield Fuel Resistant Gasket Dressing & Sealant, 2 oz Tube

blue, tacky, non hardening goo. use very little.

Title: Re: Raptor leaking
Post by justin_o_guy2 on 05/22/15 at 20:50:43

Im calling it a gasket, its an oring, really,
And I never replaced the valve cover ones,

Title: Re: Raptor leaking
Post by swing69 on 05/23/15 at 15:10:47

352A2C2B3631003000382A266D5F0 wrote:

Im calling it a gasket, its an oring, really,
And I never replaced the valve cover ones,

understood. both seal. Hylomar on all gaskets, including Orings! no worries.