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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: Angus gentleman on June 27, 2013, 06:26:05 PM

Title: Water in my petrol tank !
Post by: Angus gentleman on June 27, 2013, 06:26:05 PM

I keep getting water in my tank ! Drain is clear and rubber seal seems ok ! But when I open the cap after rain you can see water around the filler hole ! Any ideas ????

Title: Re: Water in my petrol tank !
Post by: WayneDW on June 27, 2013, 08:08:48 PM

Can you see the drain hole on the left?  Sometimes the cap gets screwed down upside down and the drain hole is on the right but when it's over there it doesn't line up with the drain hose.

Title: Re: Water in my petrol tank !
Post by: argent brick on June 28, 2013, 02:34:44 AM

+1 what Wayne said.

Also, there is a foam rubber gasket in the lid of the gas cap. Maybe yours needs to be replaced. They make a kit to replace the gaskets and seals in your gas cap. I think it runs about $15 bucks, if still available.

Update:

Part #16 11 9 062 461, Price: $30.00 US

There also is a gasket that fits between the tank and fuel cap assembly. Part # 16 11 1 453 690. Are you missing this?

Title: Re: Water in my petrol tank !
Post by: Angus gentleman on June 29, 2013, 02:18:37 PM

I've checked the drain replaced the 2 seals !

Title: Re: Water in my petrol tank !
Post by: Grim on June 30, 2013, 10:09:37 PM

Just ran across this rebuild vid and thought of your post if you haven't fully resolved the problem this may help. Lot more seals in there then I realized. 2 O rings, Foam gasket (likely you leak) and a large O ring.
Good Vids but Chris is a bit colorful with the language. Get the kiddies out of ear shot if you have them or you may have some words from momma. ;)
https://www.youtube.com/watch?v=Mwpt9IumBCc (https://www.youtube.com/watch?v=Mwpt9IumBCc)