10-02-2019, 08:20 PM
(This post was last modified: 25-05-2019, 11:18 AM by AllAlloyCup.)
Hi Ruaridh
The level at the jet head is well below the bottom of the tank
And numerous posts have said that this SU set up can work reliably
As long as the tank has a fair level of fuel in it.
This OM has a throat slightly less than 1” so I’m happy to try out this
Arrangement with the AN needle.
I had a daft thought that the other way to ensure a full fuel feed
was to fit an Ulster type air pump? If need be an SU pump can be retrofitted.
Has anyone tried this out on a Chummy with a non cooking engine.
Eg standard valves and camshaft , but alloy HC head, lightweight pistons
and steel crank, I’m not planning to do racing!
If I can keep up with Jim H or Malcolm P I’ll be happy enough!
Regards
Bill G
The level at the jet head is well below the bottom of the tank
And numerous posts have said that this SU set up can work reliably
As long as the tank has a fair level of fuel in it.
This OM has a throat slightly less than 1” so I’m happy to try out this
Arrangement with the AN needle.
I had a daft thought that the other way to ensure a full fuel feed
was to fit an Ulster type air pump? If need be an SU pump can be retrofitted.
Has anyone tried this out on a Chummy with a non cooking engine.
Eg standard valves and camshaft , but alloy HC head, lightweight pistons
and steel crank, I’m not planning to do racing!
If I can keep up with Jim H or Malcolm P I’ll be happy enough!
Regards
Bill G
Based near the Scottish Border,