Club 80-90 Forums

Hi
I am thinking of buying a t25 which hasd webber carbs fitted on a 1.9Dg. The bloke (who appears to be a good guy) says that he has had it set up for economy and he can get 24 mpg round town and 31mpg on a run. He says that when starting from cold you have to rev standing at 1000rpm for 30 seconds then its fine.
I wasnt sure if this could lead to a problem by running lean (engine wash?) but as i am normally a diesel guy i am not sure?

Any advice from the wisdom of the sages much appreciated!

I don't believe the figures, and does he mean "Carbs" as DG normally only has 1 (unless someone has "made" a fancy twin carb manifold for it )

And as for revving it to 1,000 rpm for 30 seconds, well they tick over at 950rpm so I don't know what the extra 50 rpm is for

I wasnt sure if this could lead to a problem by running lean (engine wash?)

Engine wash is the opposite, happens when too rich, not too lean, = excess fuel washes the oil off the bores.
Too lean = burns holes in pistons and burns bits of exhaust valve off

Webbers on WBX'rs = usually very unsatisfactory

If the seller is full of that much bull I would not buy a van from him !

That kind of mileage is either wishful thinking or some serious miscalculations. You'd have to drive with a right foot made of polystyrene to get even remotely close to that - or coasting downhill very fast.

Ahhhh gutted! Typical! everytime you think you have found a van you want! thanks for the advice oh wize ones. (Its my "carbs" error)

ghost123uk wrote:I don't believe the figures, and does he mean "Carbs" as DG normally only has 1 (unless someone has "made" a fancy twin carb manifold for it )

Are after market manifolds not available then?

Almost every vehicle that i have changed the carbs for webbers has had improved economy.

I also doubt if it has any form of cold start fitted. A slight lift in idle RPM with the foot is the norm when running webbers.

budgetbus wrote: Almost every vehicle that i have changed the carbs for webbers has had improved economy.

There are loads of threads on here with Webber owners bemoaning them. They are not suited to the T25. The 'ah yes your carb's knackered' brigade would do well to talking to a real mechanic instead of a fitter.

Ian Hulley wrote:

budgetbus wrote: Almost every vehicle that i have changed the carbs for webbers has had improved economy.

There are loads of threads on here with Webber owners bemoaning them. They are not suited to the T25. The 'ah yes your carb's knackered' brigade would do well to talking to a real mechanic instead of a fitter.

Why not suited?...in short please so i dont have to wade through different threads.

Do a search.

Ian Hulley wrote:Do a search.

How helpful of you.

Thanks i will do...maybe ill find more broad statements like "They are not suited to the T25" What all engines? I do hope not.

We get an awful lot of repeat questions on this forum, that is why we have started to build up a very useful 'WIKI' file answering most of the common issues. All Ian was saying was 'use it'.

The Weber carb thing is simple: most people who have them fitted (all engines) have some issues and at some point they revert back to VW original.

And if you want REAL economy, don't be put off a petrol engined T25 just 'Gas It!' ....costs about £1100 but this is re-couped in under 12,000 miles of driving with every mile after that costing around 40% less.

Realistic equivelent MPG of 35 - 40.

Martin

California Dreamin wrote:We get an awful lot of repeat questions on this forum, that is why we have started to build up a very useful 'WIKI' file answering most of the common issues. All Ian was saying was 'use it'.

The Weber carb thing is simple: most people who have them fitted (all engines) have some issues and at some point they revert back to VW original.

And if you want REAL economy, don't be put off a petrol engined T25 just 'Gas It!' ....costs about £1100 but this is re-couped in under 12,000 miles of driving with every mile after that costing around 40% less.

Realistic equivelent MPG of 35 - 40.

Martin

Oh i agree. I just thought as "They are not suited to the T25" there was a simple problem that could have been posted easily.

When people post things like this ...

budgetbus wrote: in short please so i dont have to wade through different threads.

they should expect the reply you got.

We have had loads of people who believed the guff that Just Krappers sell because their garage or 'mechanic' couldn't/couldn't be bothered to diagnose either a blocked fuel filter, stale petrol, crap supermarket petrol, a blocked carb inlet filter, worn petrol pump or pushrod etc etc. Most of these new Webber owners then struggle because the jets are wrong, they have zero cold start, and the economy is dreadful.

The search you do will highlight all of these problems, most people who swap back to the Pierburg discover there was a really simple initial problem.

Ian

Ian Hulley wrote:When people post things like this ...

budgetbus wrote: in short please so i dont have to wade through different threads.

they should expect the reply you got.

We have had loads of people who believed the guff that Just Krappers sell because their garage or 'mechanic' couldn't/couldn't be bothered to diagnose either a blocked fuel filter, stale petrol, crap supermarket petrol, a blocked carb inlet filter, worn petrol pump or pushrod etc etc. Most of these new Webber owners then struggle because the jets are wrong, they have zero cold start, and the economy is dreadful.

The search you do will highlight all of these problems, most people who swap back to the Pierburg discover there was a really simple initial problem.

Ian

I totally agree with miss diagnosis or problems.

To be honest anyone getting a carb kit and thinking they wont have to be tuned professionally is in cloud cuckoo land. And anyone selling the kits should say this. You need jets/tubes & chokes set to YOUR engine. To get the best out of them. But this is again an issue that a mechanic should know...its not an issue of Webber carbs, its an issue of miss selling and poor knowledge. If fitting a carb kit such as this i would allow the funds for a rolling road tune.

budgetbus wrote:

Ian Hulley wrote:When people post things like this ...

budgetbus wrote: in short please so i dont have to wade through different threads.

they should expect the reply you got.

We have had loads of people who believed the guff that Just Krappers sell because their garage or 'mechanic' couldn't/couldn't be bothered to diagnose either a blocked fuel filter, stale petrol, crap supermarket petrol, a blocked carb inlet filter, worn petrol pump or pushrod etc etc. Most of these new Webber owners then struggle because the jets are wrong, they have zero cold start, and the economy is dreadful.

The search you do will highlight all of these problems, most people who swap back to the Pierburg discover there was a really simple initial problem.

Ian

I totally agree with miss diagnosis or problems.

To be honest anyone getting a carb kit and thinking they wont have to be tuned professionally is in cloud cuckoo land. And anyone selling the kits should say this.

but they don't. So let's just live in the real world eh?

You need jets/tubes & chokes set to YOUR engine. To get the best out of them. But this is again an issue that a mechanic should know.

really? ..and just how do mechanics keep abreast of all carburation issues on a twenty five year old van... unless they are specialised in normally aspirated flat four WBX engines

i would allow the funds for a rolling road tune.

even after that, they are worse than the standard Pierburg in perfiormance and economy it has been found by specialised WBX engineers.
as you will find in the search you have done.

The real world heaven forbid anyone expecting a supplier to be honest about kits.
And yes some one specialising in VW flat motors should have at least the basic knowledge that you cant just bolt a carb on and forget about it. At the very least even a direct replacement will need setting up to some degree.
I did search but its just full of people rehashing "Ohh webbers are bad Mkay"
I guess the entire flat four performance industry are incorrect. Fit webbers to a T3 and they will never work.