Vw t25 2.0 aircooled engine 1980
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- Drip
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Vw t25 2.0 aircooled engine 1980
Hi ive just had fitted a set of webber carbs 34ict pict but running great on idle. When engine warmed up and i take it for a run it is lacking power in first and second gear but goes great in third gear, can you tell me what size jets are correct for them to be running realy good. Any advice would be much appriciated thanks
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- Drip
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Re: Vw t25 2.0 aircooled engine 1980
Forgot to mention that when its sat on tickover it smells alot of petrol from exhaust
- Edmond
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Re: Vw t25 2.0 aircooled engine 1980
Retrovan(Herman) on this forum has good experience with weber ict carbs drop him a pm I'm sure he will help you
- retrovan
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Re: Vw t25 2.0 aircooled engine 1980
This sounds like you fuel pump is too strong for the Webers.
You need a low pressure pump,it must be as low as 1.5 to2.5 bar only, anything higher and she will push past the floats.
Also see that you have the vacuum balancing tube between your two carbs manifolds, must be at least 8 to 10 mm inside size.
And you need to have a vacuum tube from each carb with a "T" piece and then to your vacuum point on your distributor.
Also set up each carb without linkage connections joined, till they are balanced, then only join the accelerator peddle linkages to operate both card, perfectly in unison.
Herman
You need a low pressure pump,it must be as low as 1.5 to2.5 bar only, anything higher and she will push past the floats.
Also see that you have the vacuum balancing tube between your two carbs manifolds, must be at least 8 to 10 mm inside size.
And you need to have a vacuum tube from each carb with a "T" piece and then to your vacuum point on your distributor.
Also set up each carb without linkage connections joined, till they are balanced, then only join the accelerator peddle linkages to operate both card, perfectly in unison.
Herman
1952 Split Beetle 1835cc
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1968 Fastback 2Lt.type4
1972 Low Light Bay Panel Van 2Lt type 4
1975 Fleetline Panel Van 1914cc
2020 MeFusco Beetle Truck 2Lt type 4
1972 FT Hahn SP 1776 cc
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Re: Vw t25 2.0 aircooled engine 1980
He means psi, not bar
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- retrovan
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Re: Vw t25 2.0 aircooled engine 1980
Totally correct Tony, late night slip..Thank you
The jet sizes I would think are right as you say it runs well in 3rd gear.
But have a look, it should be 145 Main Jet, and 55 Idea Jet for your 2000cc motor.
If she runs a bit hot, go 1 size up on your main jet, but this should not be necessary.
Herman
The jet sizes I would think are right as you say it runs well in 3rd gear.
But have a look, it should be 145 Main Jet, and 55 Idea Jet for your 2000cc motor.
If she runs a bit hot, go 1 size up on your main jet, but this should not be necessary.
Herman
1952 Split Beetle 1835cc
1968 Fastback 2Lt.type4
1972 Low Light Bay Panel Van 2Lt type 4
1975 Fleetline Panel Van 1914cc
2020 MeFusco Beetle Truck 2Lt type 4
1972 FT Hahn SP 1776 cc
1968 Fastback 2Lt.type4
1972 Low Light Bay Panel Van 2Lt type 4
1975 Fleetline Panel Van 1914cc
2020 MeFusco Beetle Truck 2Lt type 4
1972 FT Hahn SP 1776 cc