theduck
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| posted on 14/12/11 at 07:04 PM |
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Pinto Fault chasing fuel pump and vacuum hoses
I got some spotters of life out the pinto today 
Only two little puffs though 
So have a few questions now.
Firstly, how can I test the mechanical pump is working? I removed the outlet pump from the pipe expecting to be greeted by petrol in the line but
nothing so something's is wrong here. I fitted the pump with what I can only describe as a spacer between it and the block, does this sound
right? It's the same etc as the base of the pump.
Secondly is my vacuum hose connections. I have the following
Manifold to servo
Manifold to block
Small spare connector on manifold end of manifold to block connector
Manifold to nowhere with carb and dizzy tee'd of this larger pipe
Should the large pipe and small connector that aren't used At the moment be blocked? Or do these need connecting somewhere?
[Edited on 14/12/11 by theduck]
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macc man
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| posted on 14/12/11 at 07:16 PM |
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If I recall the pump is run from the camshaft lobe so it will have a plunger that moves in & out. If you remove from the engine and press the
plunger you should get a spurt of fuel from the outlet. Might be worth converting to electric pump if faulty though.
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theduck
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| posted on 14/12/11 at 08:08 PM |
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Cheers. Will put that on the list to try. What's involved in fitting an electric pump?
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lotusmadandy
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| posted on 14/12/11 at 08:13 PM |
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When you remove the pump you should find a short
pushrod.if its missing the pump wont,pump any fuel.
Andy
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theduck
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| posted on 14/12/11 at 08:32 PM |
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Pushrods definitely there Checked before I fitted the pump.
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lotusmadandy
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| posted on 14/12/11 at 08:55 PM |
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The spacer you describe should be there. It sounds
to me as though your pump isnt drawing any fuel from
the tank. This might sound stupid but is your supply connected
to the inlet on the pump and not the return.
In my experience a pinto pump will draw fuel almost
immediately through dry lines,is the supply line in the
tank all the way to the bottom of the tank?
They may sound like realy daft questions but there is a reason
that the supply line is dry.
Andy
Edit to say;
is the pump new or the original. Even old
pumps seem to go on forever
[Edited on 14/12/11 by lotusmadandy]
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theduck
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| posted on 14/12/11 at 09:28 PM |
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Is the original pump. Have checked by blowing through the pump so is correct way round. Will check other bits. simple suggestions are worthwhile as I
am very much learning. Id rather you think it's simple ad suggest it then me not think of it and miss it.
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richard
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| posted on 14/12/11 at 10:03 PM |
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best way for me / you to test the pump as it easy to get them the wrong way round, take it off the block put tonge over what you believe is the inlet
and pump the spring loaded valve on the block end after a couple of pumps you should feel your tougue stuck to the inlet pipe and vice versa for the
outlet pipe.
Once you know this is sorted and you are happy you have got the correct pipe from the tank to the pump, you can try and prime it with a pipe from a
small tank to pump as it s a shorter distance for the pump to have to pull the petrol, leave the outlet pipe off fromthe pump and you should whilst
turning the engine over see fuel spurting out the pump ?
would be getter to see a picture of the pipes you refer to especially
Small spare connector on manifold end of manifold to block connector
Manifold to nowhere with carb and dizzy tee'd of this larger pipe
Should the large pipe and small connector that aren't used At the moment be blocked? Or do these need connecting somewhere?
Rich
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Peteff
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| posted on 14/12/11 at 10:23 PM |
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Is it the original pump ? We had one that had a longer pushrod so it needed more spacer, you could be the other way round.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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theduck
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| posted on 15/12/11 at 03:04 PM |
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Yes original pump that came off donor. Will remove and test.
Vacuum hose pictures as requested:
Manifold to servo
Manifold to block with small connector unused
Manifold to nowhere with caRb and dizzy T connected in
Manifold end
T connection
Unused end
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lotusmadandy
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| posted on 15/12/11 at 07:55 PM |
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The second photo down goes to the air cleaner,just blank it off.
The third photo down is a coolant supply from the head,pipe it into the outo choke.
The unused end will t into the hose that runs from the header tank.
I connected one of the hoses on the t connection onto the dizzy and blanked the other one.
Others may have done it differently but it all worked fine for me.
Andy
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theduck
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| posted on 15/12/11 at 08:17 PM |
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Cheers Andy! The autochoke has been removed am running manual choke, so can I remove that coolant pipe? Do I need coolant to dizzy and carb?
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lotusmadandy
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| posted on 15/12/11 at 08:29 PM |
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You cant remove the coolant hose from the
manifold,it will overheat
the head.Run it around the back of the
block and T it into the hose that runs from the header
tank,to the water pump.I did this when i fitted bike carbs
to my pinto.It worked fine and maintained the coolant
flow through the head.
There is no coolant goes to the dizzy,just to the auto choke,so you are ok to remove it from the choke unit.
Andy
[Edited on 15/12/11 by lotusmadandy]
[Edited on 15/12/11 by lotusmadandy]
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theduck
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| posted on 15/12/11 at 08:41 PM |
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Confused now, pic 3,4and 5 are all the same pipe, the T comes off it and has pipes labeled carb and distributor?
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lotusmadandy
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| posted on 15/12/11 at 09:13 PM |
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Sorry i wasnt looking closely enough.
Remove the t that has the pipes going to the carb and
dizzy and connect the small hose from
the dizzy straight onto the vac take off,on the bottom of the carb.
That will restore the advance/retard Then connect
the coolant outlet on the manifold to a t in the headertank
bottom hose.
Andy
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theduck
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| posted on 15/12/11 at 09:39 PM |
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Right ok, so the tee that is connected to the coolan hose shouldn't be on there and should just have the carb connector connected directly to
the dizzy?
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theduck
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| posted on 15/12/11 at 09:59 PM |
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Am starting to wonder if that is actually a tee connector at all, it seems so originall and was all connected up like that when I got it I am
wondering if it's more laid pug like fog neatness snd the coolant pipes dont actually connect to the carb and dizzy hoses... Will have to test
this theory.
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lotusmadandy
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| posted on 16/12/11 at 06:22 AM |
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It should be there on the original car but for our
application just connect the dizzy direct to the carb.
If you have the flame trap that was fitted put it in the line
as well.
There is no coolant runs through to the dizzy and carb
those small hoses are just vacum for the advance/retard
Andy
[Edited on 16/12/11 by lotusmadandy]
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theduck
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| posted on 16/12/11 at 10:26 AM |
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Big thanks to lotusmadandy for all his help. Finally got my head around all this now. First start attempted 342 later, maybe lol
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theduck
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| posted on 16/12/11 at 09:23 PM |
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Ok guys so pump works when operated manually, but not on block. Have removed pump and cranked engine and pushrod doesn't move. Any ideas? Am
100% this only thing stopping it starting now!
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theduck
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| posted on 16/12/11 at 09:56 PM |
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Ignore my last post. Just tried again and pump is working on block but did take few cranks to prime the line again. battery too flat to start now
though back on charge and hopefully will be able to get it started next charge.
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lotusmadandy
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| posted on 16/12/11 at 10:02 PM |
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Nice one mate,with any luck it will be running
tomorrow then
Andy
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theduck
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| posted on 16/12/11 at 10:08 PM |
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If it does I'll put up a video of tonight's attempt and of cause of the first start it's self!
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