New Amal Floats

Cookie · Jan 13, 2010

I keep Johnnie Walker blue in my fluids cabinet for those cold evenings. That seems a pretty good way to check, i'm also wary of gasoline myself.
When I was in college we were removing a VW fuel tank in the cold in a friend's car. His dad had us pull it in the garage and put a heater in for us. The fumes went up and they got a new house.

rbt11548 · Jan 27, 2010

Corona850 said:
I rigged up an old carb body and set about adjusting the float heights until the fuel level was within spec. I scribed lines at 0.17" and 0.24" below the bowl edge. Interestingly, the meniscus with gasoline seems to be about that distance. I managed to bugger up one seat in the adjusting process and had to replace it. But in the end I got the fuel level in both bowl within spec. And - what do you know? - the floats are more or less parallel with the top of the bowl just like the Burlen instruction say tehy should be. So, it seems that the INOA Tech Digest is probably correct when it says "The floats in Amal carburetors should sit 3/32" above the edge of the float bowl."

Hi Corona850, just finished setting up the fluid height in the carbs, rigged up a unit similar to yours and got the level within the limits on both carbs, the only thing I did notice with the float needle seat bottom measured to 0.574" I couldn't get the fluid level high enough, once I set it in a bit deeper I could get it between the 0.17" & 0.25"marks, I take it this doesn't matter as long as the fluid level is correct with the 0.574" just basic starting point?
Cheers
Robert

Corona850 · Jan 27, 2010

rbt11548 said:
... got the level within the limits on both carbs, the only thing I did notice with the float needle seat bottom measured to 0.574" I couldn't get the fluid level high enough, once I set it in a bit deeper I could get it between the 0.17" & 0.25"marks, I take it this doesn't matter as long as the fluid level is correct with the 0.574" just basic starting point?
Cheers
Robert

Yes. I think the seat depth of 0.574" is a starting point. I think the key point is the fuel level. At least, that's how I set it up. I had exactly the same experience, more so on one carb than the other. But, I had to change out a needle valve seat, so I think that was my problem on that carb.

New Amal Floats

Cookie

rbt11548

Corona850

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