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Old 1 Week Ago   #1
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First post

Hello
I just stumbled across this club and like the look of it.
As an introduction, I own a 1986 2.0 petrol Mk1 Ducato motorhome with Hobby 600 coachwork. It my pride and joy but also my nemisis. It takes all my time and money but I suppose Im just addicted.
I have got a lot of experience and info on the Mk1 that may prove useful to others.
I do have one small problem that's irritating me though.
My van has a Weber carb fitted and used to run perfectly. My problem now is that after sitting for a few days, it takes ages of cranking to get it to start. Otherwise it starts immediately. It's obviously a fuel problem. The carb is ememptying itself and has to be fed from the tank again. I have changed the fuel line. Fitted a new pump and filter. Fitted a non return valve but the problem remains. Would anyone have an idea of what the problem is? I don't want to fit an electric pump.
Cheers
Andrew.
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Old 1 Week Ago   #2
Join Date: Apr 2010
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Re: First post

Quote Originally Posted by Andyroooo View Post
Hello
I just stumbled across this club and like the look of it.
As an introduction, I own a 1986 2.0 petrol Mk1 Ducato motorhome with Hobby 600 coachwork. It my pride and joy but also my nemisis. It takes all my time and money but I suppose Im just addicted.
I have got a lot of experience and info on the Mk1 that may prove useful to others.
I do have one small problem that's irritating me though.
My van has a Weber carb fitted and used to run perfectly. My problem now is that after sitting for a few days, it takes ages of cranking to get it to start. Otherwise it starts immediately. It's obviously a fuel problem. The carb is ememptying itself and has to be fed from the tank again. I have changed the fuel line. Fitted a new pump and filter. Fitted a non return valve but the problem remains. Would anyone have an idea of what the problem is? I don't want to fit an electric pump.
Cheers
Andrew.
There. Use to be a return fuel hose fitted which was to return over fuel to fuel tank many owners blank it off because of same problem. You may also find TalbotOC a useful forum to be a member of as many owners of same model engine
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Old 1 Week Ago   #3
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Re: First post

Thanks for the reply. On my van, there is no return hose. I just have a single one all the way from the tank.
It's very good advice about talbotoc. I have been a very active member on there for years.
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Old 1 Week Ago   #4
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Re: First post

Quote Originally Posted by Andyroooo View Post
Thanks for the reply. On my van, there is no return hose. I just have a single one all the way from the tank.
It's very good advice about talbotoc. I have been a very active member on there for years.
ok andy can i ask are you parking van on a slope or hill this can cause drainage of carb because to accommodate right hand drive the carb is wrong way round ( back to front ) thus allowing drain back hence kangarooing on long drags as the main jet is at the font of the bowl instead of the rear. ie you don't get the problem with left hand drive. just a thought.
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Old 1 Week Ago   #5
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Re: First post

Nope! I'm afraid that's not a contributing factor. It sits on a dead flat & level courtyard. Remember that mine is fitted with a Weber carb. Although that doesn't figure in the problem as it used to be ok when left.
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Old 1 Week Ago   #6
Join Date: Dec 2007
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Re: First post

Hi. If it has an old type lift pump the valves inside the pump may be the problem.
If you strip the pump down it should have a diaphram and two non return valves (shaped like top hats) if the valves are weak they will let by, not sure if you can still get the service kit if so it’s an easy job 10 minutes once its stripped down.
Otherwise disconnect the mechanical pump and fit an electric one.
Long time since I worked on a petrol engine so that was from a dim memory.
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