Explanation of How Petrol Tank Breather Works

thunderbolt · Post by **thunderbolt** » Sat May 30, 2015 8:52 am

My breather hole for reference.

macdee · Post by **macdee** » Sat May 30, 2015 9:53 am

you have a very nice hole

TravisZack · Post by **TravisZack** » Sat May 30, 2015 9:54 am

Can you not seal the tank as normal and then bore the little hole out afterward if it closes up? Quite a lot of sealant would have to go through the hole, around the ring and down the tube before causing any sort of blockage?

Speaking from absolutely no experience here so maybe that's a naïve outlook.

thunderbolt · Post by **thunderbolt** » Sat May 30, 2015 2:10 pm

TravisZack wrote:Can you not seal the tank as normal and then bore the little hole out afterward if it closes up? Quite a lot of sealant would have to go through the hole, around the ring and down the tube before causing any sort of blockage?

Speaking from absolutely no experience here so maybe that's a naïve outlook.

It took a great deal of effort and mucking around to position the dental type mirror to get a picture of the breather hole inside the tank. To be able to bore sealant out of the existing hole if it was needed would be darn near impossible I would think. Can't get much in through the tank filler cap. Maybe a piece of wire the correct size could be bent in a "U" shape though and maneuvered up into the hole would work.

Wicky · Post by **Wicky** » Sat May 30, 2015 3:16 pm

Just put a small wooden plug (half-a-cocktail stick) in it that you can easily remove after coating.

thunderbolt · Post by **thunderbolt** » Sun May 31, 2015 1:02 am

Wicky wrote:Just put a small wooden plug (half-a-cocktail stick) in it that you can easily remove after coating.

BRILLIANT!! Wicky

Aren't some of the most brilliant ideas the simplest.

Thanks

thunderbolt · Post by **thunderbolt** » Sun May 31, 2015 7:32 am

macdee wrote:you have a very nice hole

Yes I know . . .

popkat · Post by **popkat** » Sun May 31, 2015 9:57 am

thunderbolt wrote:My breather hole for reference.

Why do you want to put Por15 in the tank, it looks mint inside

.

thunderbolt · Post by **thunderbolt** » Sun May 31, 2015 2:27 pm

popkat wrote:
thunderbolt wrote:My breather hole for reference.

Why do you want to put Por15 in the tank, it looks mint inside

.

There is a leak at the rear of the tank. I thought it was where the rear bracket was welded on. But now I'm thinking it might be the "O" ring that seals the petrol outlet on the '03 models. Early models don't have this setup. They have a different fuel tap arrangement. Waiting for the "O" ring to arrive in the mail.

You are right, the inside of the tank is in mint condition.

VTRDark · Post by **VTRDark** » Tue Jun 02, 2015 7:19 pm

Great picture Don.

This was a very much needed thread. Something that has not been covered so much on the forum. Great info on the Phosphoric acid too.

(:-})

VTR1000.ORG

Explanation of How Petrol Tank Breather Works

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