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Carburettor question

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Old Oct 22, 2012 | 12:20 PM
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Default Carburettor question

Hi all my question o you is can I fit a fiesta xr2 carb onto my 1.3 ohv/hcs engine. The xr2 is very similar to the one I already have so I know it will fit but will there e any running problems?
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Old Oct 22, 2012 | 12:37 PM
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No, not without it being tuned/jetted, it will run very rich.

The XR2 will be a Weber carb, where as I am sure your HCS will have Fords "VV carb" or similar, which are crap to put it nicely!

Martin
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Old Oct 22, 2012 | 01:33 PM
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My current carb looks very very similar to the xr2 one I will post the pictures of the two.
Once the carb is tuned/jetted would a receive any performance gains?
Thanks
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Old Oct 22, 2012 | 08:16 PM
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I have just checked and the 1.3 HCS has a "Weber 2V DFT" and the XR3 (Which should be the same engine as the XR2) has a "Weber 2V TLDM", so they aren't exactly the same.

The non HCS have Ford VV carbs, as I mentioned earlier, now that we know you have a Weber already I wouldn't think it's worth changing imo.

Martin
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Old Oct 22, 2012 | 10:06 PM
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Carburettor
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ford variable venturi (VV) or Weber 2V

Application:
1.1 litre OHV engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ford VV
1.1 litre CVH engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ford VV
1.1 litre HCS engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weber 2V TLDM
1.3 litre OHV engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ford VV
1.3 litre HCS engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weber 2V TLDM
1.3 litre CVH engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ford VV
1.4 litre CVH engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weber 2V DFTM
1.6 litre CVH engine (except XR3 models):
Up to 1986 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ford VV
1986 on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weber VV TLD
1.6 litre CVH engine (XR3 models) . . . . . . . . . . . . . . . . . . . . . . . . . . . Weber 2V DFT

Choke type:
All models up to 1984 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automatic
1.1 and 1.3 litre engines, 1984 on . . . . . . . . . . . . . . . . . . . . . . . . . . . . Manual
1.4 and 1.6 litre engines, 1984 on . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automatic
(Taken from Haynes for the Escort)

On the XR range there were two types of carbs fitted, the earlier square top (DFT) and the later round top (TLDM)

I can't remember the sizes of the chokes etc but my HCS if I can remember had a round top carb.

You could make it fit, the problem you'll have as others have said is the jetting - I bought for my previous MK4 which is in my sisters hands a set of bike carbs (incl manifold etc) but never fitted it.

Edit: http://escort.mk3.pagesperso-orange....s/0686-04a.pdf

Last edited by Twizz; Oct 22, 2012 at 10:08 PM.
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Old Oct 23, 2012 | 09:07 AM
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Thanks for all the feedback, I do have the round top carburettor. The only reason why I ask as my carb plays around it makes my car splutter and if it isn't fully warmed up it can be a right pain in the arse and no power and bogs right down and then decides when it wants to have power. I have both an xr2 carb and the square top one you talk about which I bought from a 1300 ghia.
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Old Oct 23, 2012 | 09:13 AM
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Originally Posted by Twizz
(Taken from Haynes for the Escort)

On the XR range there were two types of carbs fitted, the earlier square top (DFT) and the later round top (TLDM)

I can't remember the sizes of the chokes etc but my HCS if I can remember had a round top carb.

You could make it fit, the problem you'll have as others have said is the jetting - I bought for my previous MK4 which is in my sisters hands a set of bike carbs (incl manifold etc) but never fitted it.

Edit: http://escort.mk3.pagesperso-orange....s/0686-04a.pdf
How hard would it be to fit bike carbs to a hcs and would I see any improvement ?
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Old Oct 23, 2012 | 10:05 AM
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Originally Posted by adampotten
How hard would it be to fit bike carbs to a hcs and would I see any improvement ?
A pain.
Especially for the minimal gains you'd see.
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Old Oct 24, 2012 | 10:02 AM
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Originally Posted by CrOwSoN15
A pain.
Especially for the minimal gains you'd see.
It can be done relatively on the cheap - as long as your handy with a welder and a grinder... But as said, the gains aren't really anything to write home about - the noise is nice though

Bang for buck, a 1.6 cvh would be best.
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