cvh specialist - Engine swap advice needed?

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cvh specialist - Engine swap advice needed?

Post by scimjim » Thu Dec 14, 2017 2:45 pm

Excellent :D

Check for sticky headlight motor relay(s) and give the switches a squirt of cleaner.

Is the pump leaking from the gasket or the drain hole in the bottom?


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cvh specialist - Engine swap advice needed?

Post by Alan SS1 » Thu Dec 14, 2017 5:11 pm

joscac wrote:
Thu Dec 14, 2017 9:03 am
Yesterday I managed to start the engine up after having been standing for over two years. Discovered a leaking fuel pump :(

Electrics need sorting: The three push on / push off switches are sticking. left headlamp motor is heating up when battery is connected. On the bright side brake lights work as well as rear indicators !

All was in working order before car was laid up !
well done, hopefully all will come OK, is fuel pump leaking oil or petrol?

try winding the motor around with the handle on the back, maybe lack of use has it 'stalled' ?


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cvh specialist - Engine swap advice needed?

Post by joscac » Thu Dec 14, 2017 8:57 pm

Will try and be a bit more patient with the switches !!

Petrol is leaking from the drain hole, there are two of them.

Now just turned knob on electric motor....... we have lights !!!

sprayed carb cleaner in all visible orifices on carb...... seems like the inside needs a good cleaning !!

some pics to follow ....later

thanks to all.

next step install doors, then vehicle reliability test (MOT)



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cvh specialist - Engine swap advice needed?

Post by Alan SS1 » Sat Dec 16, 2017 4:00 pm

If petrol is draining from these holes it might also be weeping into the sump? so diluting your engine oil . . .. .

it is an easy enough swap, just remove air filter and a pair of 13mm nuts hold it on, but petrol pipes might be fragile and fall apart as you try and remove them :shock:


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cvh specialist - Engine swap advice needed?

Post by reliant-reviver » Sat Dec 16, 2017 4:09 pm

Tis a 1300, so that would be 2 pozi head M6 bolts holding the air filter on.
If it's running a motorcraft VV carb you are probably better to look at replacing it with a fixed jet Weber of dellorto.
The Weber 32IBF is a fairly common bolt on upgrade, certainly in the UK at least but you may be able find one closer to home. I have a couple on the shelf here but I can't recall their history so can only advise a rebuild.


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cvh specialist - Engine swap advice needed?

Post by joscac » Tue Dec 19, 2017 8:04 am

25532239_10213587898265383_4933225919991905193_o.jpg
petrol pump 1
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petrol pump 2
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cvh specialist - Engine swap advice needed?

Post by joscac » Tue Dec 19, 2017 8:05 am

That's the fuel pump !

Would a carb replacement fit the existing manifold ?



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cvh specialist - Engine swap advice needed?

Post by joscac » Tue Dec 19, 2017 9:15 am

petrol visible gushing out on RHS of pump :(
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cvh specialist - Engine swap advice needed?

Post by philhoward » Tue Dec 19, 2017 9:35 am

Yep - that’s knackered..


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cvh specialist - Engine swap advice needed?

Post by reliant-reviver » Tue Dec 19, 2017 9:51 am

Seconded. The diagram has split inside and your getting fuel through from behind it and out of the tell-tail hole. Also quite possibly through into the push rod and cylinder head which would contaminate the oil.

If you are rpelacing the fuel pump for another mechanical one, it might be worth considering the later type that has the return tail incorporated.

ford part number 87SF9350AA

This means you can then remove the plastic 3 way connection on the carburetor feed hose.

The Weber 32 IBF and also the Dellorto FRDC 32A were both supplied as direct replacement KITS, they do have an adapter plate for the base of the carburettor, so if you look to acquire either of these make sure this is in place.

Weber -
https://www.ebay.co.uk/itm/CARBURATORE- ... SwIQdZKZJ9

Dellorto -
https://www.ebay.co.uk/itm/NOS-OEM-DELL ... Swr81UPrbi

That said, if the Ford VV carb fitted is working, I would be inclined to leave it for now. If you are spending money and time to upgrade, then it is ultimately better to look for a twin-choke carburetor and suitable manifold from the 1.4 or 1.6 CVH.


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cvh specialist - Engine swap advice needed?

Post by Old and Slow » Tue Dec 19, 2017 1:28 pm

IMO I think you should replace the jubilee clip with proper fuel line clips, which have "rolled" edges to avoid weakening the fuel line by the sharp edges jubilee clips have.


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cvh specialist - Engine swap advice needed?

Post by Roger Pennington » Tue Dec 19, 2017 3:41 pm

and (especially if the pipe with the crimped clip is an original one) the pipes are probably well past their sell-by date too. Use genuine R9 spec ethanol-proof hose. :)


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cvh specialist - Engine swap advice needed?

Post by Alan SS1 » Tue Dec 19, 2017 6:00 pm

philhoward wrote:
Tue Dec 19, 2017 9:35 am
Yep - that’s knackered..
aye that's impressive
i reckon your mpg might be quite low but at least the gearbox will be clean :-) :shock:

I'd be empty the sump for fresh oil as that rate of leakage some is bound to have got into the oil and seriously thinned it down, sorry if you've just put fresh oil into it :-( (even the Aberdonian in me says change it BEFORE use it in anger, probably OK to run in garage and free things off but NOT with any load)

you could see if it stinks of petrol first though if wish to 'chance it' :wink:


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cvh specialist - Engine swap advice needed?

Post by joscac » Wed Dec 20, 2017 8:22 pm

Oil had already been thinned with 200cc of diesel which had been poured into cylinders thro' spark plug hole !! I guess I ought to change oil.

I found this petrol pump. It's a new old stock. The one on the left. Bolt holes seem to match up but protruding pushrod is about 2mm too short. Will it work ??
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cvh specialist - Engine swap advice needed?

Post by reliant-reviver » Thu Dec 21, 2017 8:46 am

There is always an amount of compression required to tighten the pump down to the point where the flange meets the spacer, so I should think it would be OK.
If not then you could reduce the thickness of the spacer between pump and head.


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