Replacing Breather Pipes Fuel Tank

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fasteddy
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Replacing Breather Pipes Fuel Tank

Post by fasteddy »

Can anyone advise can i replace the rubber breather hose connectors on the fuel tank in situation or do i need to drop the tank
Thanks guys
1970 cu air cooled 1983
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bigherb
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Re: Replacing Breather Pipes Fuel Tank

Post by bigherb »

It is best to drop the tank, but it can just about be done if you have small hands and there are no clips on the hoses.
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fasteddy
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Re: Replacing Breather Pipes Fuel Tank

Post by fasteddy »

Thanks for the info
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Ant-t
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Re: Replacing Breather Pipes Fuel Tank

Post by Ant-t »

Agree with the above, it's a lot easier if you drop the tank, you can also check the condition of the top of the tank to see if its rusty etc.
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937carrera
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Re: Replacing Breather Pipes Fuel Tank

Post by 937carrera »

Ant-t wrote:Agree with the above, it's a lot easier if you drop the tank, you can also check the condition of the top of the tank to see if its rusty etc.

Brake & clutch pipes too
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fasteddy
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Re: Replacing Breather Pipes Fuel Tank

Post by fasteddy »

Removed the fuel tank today to do the breather pipes on inspection found a few pin holes on the top middle ,so the tank needs replacing however looked on on well known site and noticed it says
(Please Note: The filler neck on this tank is slightly out to the original spec, and will require careful placement of the fuel filler neck.)

However i want to keep the original steel fuel filler neck so was thinking this will not line up as there will be no play at all .

Found another at the same price on another well known suppliers site and it does not mention the filler neck out of position its the same price barring a few pence

Any ideas need to order a tank ASAP

Did not put the company names as i did not know if that was allowed here
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multisi
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Re: Replacing Breather Pipes Fuel Tank

Post by multisi »

Best to change the old steel filler neck to plastic. Then order the correct tank to suit.
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bigherb
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Re: Replacing Breather Pipes Fuel Tank

Post by bigherb »

fasteddy wrote:so the tank needs replacing however looked on on well known site and noticed it says
(Please Note: The filler neck on this tank is slightly out to the original spec, and will require careful placement of the fuel filler neck.)
They are all like that as they all come from the same manufacturer. Justkampers just tell you they are "pooh".

You are better off fitting the latter tank and smaller plastic filler neck where the misalignment is not a problem.

This is how bad they are, it is not the hole is in the wrong place but the tank should be flat where the arrow is so it sits against the chassis rail but is tapered so the tank sits too low.

Image
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fasteddy
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Re: Replacing Breather Pipes Fuel Tank

Post by fasteddy »

Bigherb are you saying i should buy the the tank with the 48mm filler hole or should i still get the tank with 68mm filler hole and buy the adaptor rubber seal and use the the plastic filler pipe ?
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bigherb
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Re: Replacing Breather Pipes Fuel Tank

Post by bigherb »

You can do it either way, but if you fit the plastic filler neck you might as well fit the later tank they are the same apart from the neck size.
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fasteddy
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Re: Replacing Breather Pipes Fuel Tank

Post by fasteddy »

Got it cheers
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what2do
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Re: Replacing Breather Pipes Fuel Tank

Post by what2do »

I recently refurbed my tank, there was a thin spot with a pin hole which I 'loaded' with weld rather than replace. 2 coats of Vactan on bare metal, 2 coats of Combicolor and 1 coat of Dinitrol, it'll last for years now. Put a photo up so we can have a look at how bad the pitting is.
Why would the glass be anything other than half full?

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Re: Replacing Breather Pipes Fuel Tank

Post by Cecil »

what2do wrote:I recently refurbed my tank, there was a thin spot with a pin hole which I 'loaded' with weld rather than replace. 2 coats of Vactan on bare metal, 2 coats of Combicolor and 1 coat of Dinitrol, it'll last for years now. Put a photo up so we can have a look at how bad the pitting is.


Obviously strict precautions required to weld a fuel tank !

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bigherb
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Re: Replacing Breather Pipes Fuel Tank

Post by bigherb »

Cecil wrote:
what2do wrote:I recently refurbed my tank, there was a thin spot with a pin hole which I 'loaded' with weld rather than replace. 2 coats of Vactan on bare metal, 2 coats of Combicolor and 1 coat of Dinitrol, it'll last for years now. Put a photo up so we can have a look at how bad the pitting is.


Obviously strict precautions required to weld a fuel tank !
Or go for a Darwin award :D
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fasteddy
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Re: Replacing Breather Pipes Fuel Tank

Post by fasteddy »

I did not fancy welding the tank there was about 4 pin holes but when i poked into them with a screwdriver they opened up to about 3-4mm for the sake of a couple of hundred £££'s would rather keep my eyebrows lol
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