no fuel to carbs

[jamie]

Hi, I have been running my amazon for a couple of years but not turned it over for a while. Now it wont start. Took fuel pipe off to carbs and turned engine, no fuel. i have put three gallons of fresh petrol in to make sure. Not sure where to go from here. It was a new fuel pump two years ago. Any advice welcome please. Jamie
It is a B20.

[arcturus]

Undo fuel pipe from tank side of pump and blow back. If it "gurgles"in tank then check line from other side pump. Probably a bit of crud.

[Ron Kwas]

Jamie;

My friend's Triumph had the very same issue a couple of years ago during attempted first starts after long layup...

Cause: It was lack of prime of the Fuel Pump...in your case, Blockages notwithstanding, first thing I'd recommend, is blowing some gentle positive pressure into the tank with an exhale, to encourage the fuel to the FuPu and beyond...remove output hose at Carbs and route into a catch can, and have a helper man the catch can as you make the pressure into the tankfiller. When helper announces fuel has made the trip, try starting...and watch for carb bowl overflows due to gummed Bowl Valves...not uncommon! I suggest you superclean those! See: http://www.sw-em.com/SU%20Carb%20Ser...and_Bowlvalves

Good Hunting

[jamie]

Thank you for your help Ron Kwas and arcturus.

I took the pump off and put it in a vice and attached fuel pipe from a can of petrol into the pump and back out into the can. Then pushed cam lever up and down and found that it was pumping.

So next up was the fuel line. The fuel line to the fuel pump was too short for me to get my head in and blow back. It is a late 131 so it also has the brake servo in the way. I don't even know if I would have enough puff to blow through and remove whatever is the obstruction. So I managed to borrow a compressor from a mate and blow back into the petrol tank until I could hear it bubbling away. Re attached the fuel line, opened up the choke and kept turning realising it may take a bit for it to pump through. Then bingo, she fired up. Great result. The only thing that worries me is a repeat and suppose the only real solution to that is a recon fuel tank. plus putting a filter. Should I fit the filter just before the fuel pump?

I then left it running and it overheated. I replaced the thermostat and still it overheated. I have a Kenlowe fan fitted which didn't fire up, so presumably there must be something with the wiring. Then I noticed the horn wasn't working. So one step forward and two back. Any comments on the over heating gratefully received.

Thank you once again

Jamie

[Ron Kwas]

Jamie;

Tstat allows or disallows flow to Radiator for cooling...you didn't mention it, but I'd replace Tstat only if overheating is indicated AND Radiator is cold (no flow!), or not particularly hot (poor flow!) ...so you need to establish and confirm if there is Coolant flow...and even before that you need to assure Cooling Sys is full, and not only partially.

Good Hunting!

[arcturus]

One before pump would stop pump clogging but I have one fitted after where I can see it.

[Derek UK]

Beware that the movement you give to the pump lever by hand is bigger than that given by the pump lobe on the cam. Diaphragm might be tired/distorted/floppy enough for it not to work on the car. As said just pop the outlet pipe into a bottle and wind up the engine on the starter. You should get decent squirts into the bottle.

[jamie]

Hello Ron, I can't find your email address on your website, could you send it to me by email jamie.leaffoundation@gmail.com
Thank you, I am interested in the fuseblocks if you still have them

Sorry managed to get your email address I hope and have sent email. Jamie