tortron Posted August 29 Posted August 29 Your carb fuel bowl has a float joggler (not air tight) and probably a small ventilation hole in the lid. So the system isn't vacuum tight. Sometimes fuel will leak out the bottom joiners (usually see some varnish underneath) 3 days to drain the system dry sounds normal? Manual prime pumps were a thing for that reason. My morrie will prime on the electric SU pump for a good few seconds if not been run the day or two before You could stick a vac gauge in the fuel line to check if you think.its that Quote
Flash Posted August 29 Author Posted August 29 2 minutes ago, tortron said: Your carb fuel bowl has a float joggler (not air tight) and probably a small ventilation hole in the lid. So the system isn't vacuum tight. Sometimes fuel will leak out the bottom joiners (usually see some varnish underneath) 3 days to drain the system dry sounds normal? Manual prime pumps were a thing for that reason. My morrie will prime on the electric SU pump for a good few seconds if not been run the day or two before You could stick a vac gauge in the fuel line to check if you think.its that Thanks heaps for your input @tortron Sounds like I may be chasing a fairy then. Perhaps I need to be looking at a prime pump. Quote
jakesae101 Posted August 29 Posted August 29 Su are very sensitive to pressure so if you change to an electric pump, use one of the glass bowl style filter regulators as they only need about 1.5psi 1 Quote
tortron Posted August 29 Posted August 29 Ypu might be able to fit a mechanical pump with primer lever. Some of the B series engines came with this setup (a pull ring). Im told the gaskets bolting pattern is the same between the A and B seri3s pumps. So maybe will work with the correct length pumping lever swapped in 1 Quote
Flash Posted August 29 Author Posted August 29 Thanks heaps for the additional info fellas. I'll do a bit more homework on this. Quote
Bearded Baldy Posted August 30 Posted August 30 We fit quite a few boat primer bulbs to vintage cars at work that spend most of the time sitting around. Few squeezes and away you go. 3 1 Quote
Flash Posted August 30 Author Posted August 30 That's a bloody good idea. Thanks for sharing. 1 Quote
Bearded Baldy Posted August 30 Posted August 30 No sweat. Have been used on everything from citroen 2cv' to 351 clevos and no fuel starvation issues. 1 Quote
Tiger Tamer Posted August 31 Posted August 31 If you are using an electric pump you could wire in a switch to prime the carb (I think you are without looking back) before you hit the start button. have done that before. Quote
Tiger Tamer Posted August 31 Posted August 31 6 minutes ago, Tiger Tamer said: If you are using an electric pump you could wire in a switch to prime the carb (I think you are without looking back) before you hit the start button. have done that before. Sorry. I looked back and you are using a mechanical pump. 1 Quote
Crispy Posted September 2 Posted September 2 Almost everyone I’ve talked to that used those KAD short shifters has quickly taken them out again. (Probably why yours was also not installed). The ball doesn’t seem to sit low enough in the cup and they reckon it pops out of gear and they can’t grab gears etc. YMMV and I haven’t tried one myself though. Quote
Flash Posted September 3 Author Posted September 3 Yep, I've heard similar things. They recon if there is any wear in the cup fitting the short shifter exacerbates the problem. Quote
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