fuel pump !

K

kevinchown

Member
hopefully someone can stop me going mad! I've stripped down my glass bowel type petrol pump for my 1967 2000tc and changed the usual parts, new diaphragm etc. I've now got petrol going in and not coming out! if I operate the lever underneath the pump petrol will dribble out, I've blown through the pipe to the carbs so that's not blocked the glass bowel is full of petrol so it must be being drawn in. For sanity's sake the outlet to the carbs is mark AC [anyone know what the AC stands for?] is that correct ?? also what position should the reserve selector valve be set in at the moment it is dis-connected from the cable? any help would be much appreciated.
 
AC is the make.

The reserve tap should be forwards for normal running and back for Reserve.

Have you put the valves in the correct way around? (They should be opposites).

I'd remove the pump from the block and then operate the priming lever as you could be filling the sump with petrol.
 
kevinchown said:
why would the sump have petrol in it?
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When the pumps leak (or in your case if things haven't been assembled correctly) then the petrol leaks out past the pivot and into the block. If that is the case, and you remove the pump and operate the primer, you should see it happening.
 
ok so when I take the pump off and operate the lever, if it does not empty the bowel then petrol is not getting into the sump, if it does I assume I'll need to do a oil change?
 
kevinchown said:
ok so when I take the pump off and operate the lever, if it does not empty the bowel then petrol is not getting into the sump, if it does I assume I'll need to do a oil change?
Click to expand...

With the pump removed, if you operate the primer and petrol spurts out past the pivot rather than from the outlet, then all the time you've done that with the pump fitted it will have done the same thing, so changing the oil would be a good idea. If it doesn't come out there but just doesn't pump, then it will need dismantling, but the oil won't have been contaminated.
 
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