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Mk1 carb

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Mk1 carb

Postby christojnr » Thu Sep 27, 2018 9:42 pm

Hello guys would I benefit from installing a 32/34 weber carb on my 2.0 v4

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Re: Mk1 carb

Postby dumper » Fri Sep 28, 2018 9:05 am

Yes if you got a manifold to fit it but will probably need re jetting it may work but the carb for a v engine usually has both sides of the carb opening together and each side of the carb feeding one side of the engine
MK 8 L4 H3 Motorsport campervan
Past camper vans
1974 mk1 v4 with 2.0 pinto fitted
1986 mk3 2.5 di swb
1990 190 lwb 2.5 di
1998 100 lwb 2.5 di
2006 350 jumbo 135 tdci
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Re: Mk1 carb

Postby christojnr » Fri Sep 28, 2018 9:07 am

dumper wrote:Yes if you got a manifold to fit it but will probably need re jetting it may work but the carb for a v engine usually has both sides of the carb opening together and each side of the carb feeding one side of the engine
Wouldn't a single barrel be better then

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Re: Mk1 carb

Postby dumper » Fri Sep 28, 2018 1:40 pm

For a v engine it is designed one Ventura for one bank of cylinders but I remember a Nicki twin choke carb working better then the standard ford carb they used to bolt onto standard manifold I’d think you’d be better off with a proper Webber carb fo a v engine I seem to remember when my mate was tuning a v6 that their was a baffle plate in the manifold he removed to get a better flow don’t know if it helped it all depends on how much you’d have to spend to try it the carb you have if jeted up may be good for economy you’d think it would be better then the standard ford carb when I used to play about with carbs their was plenty in the scrap yards to get jets and bit to make them fit
MK 8 L4 H3 Motorsport campervan
Past camper vans
1974 mk1 v4 with 2.0 pinto fitted
1986 mk3 2.5 di swb
1990 190 lwb 2.5 di
1998 100 lwb 2.5 di
2006 350 jumbo 135 tdci
dumper
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Re: Mk1 carb

Postby Neil » Fri Sep 28, 2018 6:16 pm

try and find the genuine carb transit v4 and v6 were lower compression engines, if you swap the carb it will need re-jetting to run right
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Re: Mk1 carb

Postby christojnr » Fri Sep 28, 2018 6:23 pm

This is the one I got with te car the bottom measurements is 32/36ImageImage

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Re: Mk1 carb

Postby DougT » Fri Sep 28, 2018 9:31 pm

As your engine is a 2.0 V4 it was most likely to have had a single choke carb fitted originally. So it looks to have been upgraded to the 32/36 at some time and if it still uses the original manifold then the flow will go to both sides of the V. The Cologne V6 carb manifolds (and I think the Essex ones too) have a divider running along the centreline of the manifold so that one choke feeds each side, so for the V6, the carb chokes need to be the same each side and operate equally.

I would have thought the 32/36 that you have would be fine with the 2.0 V4 and so there would be little point in changing to the 32/34. But the important point as others have said is that the carb is correctly jetted.

What is the problem you are trying to fix with the possible change in carb ?

Doug
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Re: Mk1 carb

Postby christojnr » Sat Sep 29, 2018 5:34 pm

DougT wrote:As your engine is a 2.0 V4 it was most likely to have had a single choke carb fitted originally. So it looks to have been upgraded to the 32/36 at some time and if it still uses the original manifold then the flow will go to both sides of the V. The Cologne V6 carb manifolds (and I think the Essex ones too) have a divider running along the centreline of the manifold so that one choke feeds each side, so for the V6, the carb chokes need to be the same each side and operate equally.

I would have thought the 32/36 that you have would be fine with the 2.0 V4 and so there would be little point in changing to the 32/34. But the important point as others have said is that the carb is correctly jetted.

What is the problem you are trying to fix with the possible change in carb ?

Doug
What would the correct jetting be

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Re: Mk1 carb

Postby Neil » Sat Sep 29, 2018 6:25 pm

usually done by a carb specialist sadly theres not many left in this throwaway world
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Re: Mk1 carb

Postby christojnr » Sat Sep 29, 2018 6:41 pm

Thank you

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