It is doing my head in…
Changes made:
Paris Motors Said they had a points set, so I went to pick it up but it wasn’t the right one… found a new points ‘arm’ in his spares box and a new/used Ducellier condenser… Better than nothing - took them and popped them in… also found the E-clip on top of the points shaft missing (thank you Ken) and added it.
Idled sweetly, went for a drive around the block - AAAARGGHHHH - still coughing and farting under load/full acceleration. FARK…
Hobbled back into the garage and went to talk to the carburettor… pulled it out to play with the fuel feed and float / bowl levels.
Here is what I found:
Fuel pump feeds 1.25L/min without back pressure (cranking fuel into a bottle) - surely that is plenty!? That’s 75L an hour - the Safari ain’t a bloody Bugatti Veyron at top speed
Taking the top off, fuel level is 25-27mm below the top join. The 15mm I found in a manual was for a Solex, so red herring … dismissed.
Checked all the jets, tubes, accelerator pump squirts again and I cannot find an issue. All appear in the right place and clean.
Float is accurate as per manual at 8mm and 13mm from the join open and closed - tick!
So I plonked the top onto a plastic container and filled it with fuel until the needle closed off - that happens at 20-22mm from the top!
Did the same trick with the carbie removed and top back on - same result : 20-22mm from the top is the fuel level when the float stops the pump feeding fuel in… I am 5mm lower when the engine is running…
How can that be? Does it even matter? Maybe 25-27mm is fine to run when nothing else is wrong…
QUESTION:
Would anyone have a 1911cc engined car with a 24/32 Weber DDC A1 carbie to whip the top off and check their level to confirm or deny the allegation of fuel starvation?
What else can I do? We checked the HT lead and spark strength (thank you schlitzaugen) - all good.
Could the points still be dodgy? Third condenser also crap? New coil no good? Surely not…
The ‘Tractor’ is getting to me! I am missing something significant…
Changes made:
Paris Motors Said they had a points set, so I went to pick it up but it wasn’t the right one… found a new points ‘arm’ in his spares box and a new/used Ducellier condenser… Better than nothing - took them and popped them in… also found the E-clip on top of the points shaft missing (thank you Ken) and added it.
Idled sweetly, went for a drive around the block - AAAARGGHHHH - still coughing and farting under load/full acceleration. FARK…
Hobbled back into the garage and went to talk to the carburettor… pulled it out to play with the fuel feed and float / bowl levels.
Here is what I found:
Fuel pump feeds 1.25L/min without back pressure (cranking fuel into a bottle) - surely that is plenty!? That’s 75L an hour - the Safari ain’t a bloody Bugatti Veyron at top speed
Taking the top off, fuel level is 25-27mm below the top join. The 15mm I found in a manual was for a Solex, so red herring … dismissed.
Checked all the jets, tubes, accelerator pump squirts again and I cannot find an issue. All appear in the right place and clean.
Float is accurate as per manual at 8mm and 13mm from the join open and closed - tick!
So I plonked the top onto a plastic container and filled it with fuel until the needle closed off - that happens at 20-22mm from the top!
Did the same trick with the carbie removed and top back on - same result : 20-22mm from the top is the fuel level when the float stops the pump feeding fuel in… I am 5mm lower when the engine is running…
How can that be? Does it even matter? Maybe 25-27mm is fine to run when nothing else is wrong…
QUESTION:
Would anyone have a 1911cc engined car with a 24/32 Weber DDC A1 carbie to whip the top off and check their level to confirm or deny the allegation of fuel starvation?
What else can I do? We checked the HT lead and spark strength (thank you schlitzaugen) - all good.
Could the points still be dodgy? Third condenser also crap? New coil no good? Surely not…
The ‘Tractor’ is getting to me! I am missing something significant…