First Generation Ascots > The Thumper Years: Stock To Lightly Modified

Fuel problems

<< < (4/4)

Iainhugh:
When I'm saying ring it's more like a ring that's been machined. I compared the new valve to the old one and the new one is slightly longer. I'll try the cotton swab with carb cleaner tonight and see if it makes a difference , but it does look clean. I was blowing through carb and lifting floats. It does shut the air flow but not the fuel. ???
Iain
Scottish highlands

WTF304:
Sounds like the needle and seat .... have you checked the floats ? .... metal floats usually corrode by the solder joints and if there are plastic it could still do the same. Take the floats out and get yourself a bowl of water and submerge them. You'll either see air bubbles or the floats won't float ..... they'll sink cause they are filling up.

Iainhugh:
I have spent 3 nights in my garage with this ... and I think I've finally fixed it. I got the old float valve with a small amount of valve paste fixed the old valve in my drill and gave it a few spins to clean up the valve seat. The floats were sticking for sure. I gave the float bowl a sharp blow with a spanner and the fuel stopped. Inside the float bowl were marks where "something" had been rubbing it. This could have been the original metal floats. I cleaned all the marks with 600 wet and dry paper. So all smooth now. I had submerged the plastic floats and they are fine but what I did notice was the bit of plastic that bridges the two halves of floats  together was catching on the brass overflow tube that's attached to the float bowl causing them to stick. I very gently pushed it forward (hoping it didn't snap off) to clear the floats. I've hooked it back up to fuel supply and it all seems good again.
Thanks for all the advise. Don't think I could have handled another night in garage with all the petrol fumes
Iain
Scottish highlands

Navigation

[0] Message Index

[*] Previous page