Fuel tap overhaul

I bought one of All Balls repair kits a while back,so today while trying to create a bit more space I came across a box with some taps in I got a bit distracted from the task in hand.
How hard can it be?
I decided to find out.
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The kit includes a drill bit to remove what I assumed to be a couple of rivets.
Set up and drill right through the alloy
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These are not rivets but part of the alloy casting,so using a 7mm drill I drilled off the head of each “rivet”
It was easy to lever the steel retaining plate up off the the remaining posts
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It is obvious now why the tap was leaking
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I had marked the parts so everything would align with the tap in the off position,so after replacing the outer seal on the tap centre I gave all the rubber components a wipe over with rubber grease and reassembled replacing new for old in the order I had laid out.
I placed the steel retaining plate over the posts and screwed the small self tapping screws in until the plate was tight to the body.
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Job done

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Nice explanation and photos Bif.

Overhauled mine in the same way and the leak cured. Rust flakes had destroyed the seal.
I did find that the tap is very hard to rotate now.

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Did mine about 12 months ago. The tap is quite hard to rotate but more importantly it still leaks a little. I suspect too much pressure has ruined the new seal as well.

Good to have feedback on the repair,I have fitted the tap I overhauled to my project and feel myself it is a lot stiffer than standard.
Perhaps I will try shimming the front plate up a little on the next one to make it easier to turn but still be fuel tight

Instead of using the self tapping srews, I drilled a 2.4 mm hole and cutted a 3mm thread on my VFR400 tap.

Don’t drill “free hand” - use some vertical drill maschine. Use the small holes to have your drill centered.

The housing is zinc or alloy - be aware your drill tend to brake more easily

You have to shorten the 2 stubs a little bit , so the srews have some pressure on the plate for better sealing. But you need them to align the plate properly.

Axel

P.S.: for UK people NRP Carbs may be cheaper than All Balls due to lower P&P.

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