Club 80-90 Forums

What is up with our T25?

It only does 13mpg.!

It is a 1.9 petrol engine with a brand new Webber Carb fitted last week.

It has new sparks and air filter.

The engine runs well but since the new carb was fitted it has had real troubles starting in a morning. The auto choke comes on and then floods the engine. Im no mechanic but i know its didnt do this badly before the carb was fitted.

Any suggestions?

Blimey my V8 4lt auto disco does better mpg! Houston you make have a problem! ( I guess you probably know that! lol )

Would you want to do a swap?

I belive that Nasa would be alarmed with the fuel consumption too.

I made a couple of enquires the other day to get a price to sell it, but as soon as you mention v8 they all said chelsea tracktors only sell down south!

Personally, I would change it back to your stock carburettor. If your old carburettor had a problem and if it's not a Pierburg one then Gower and Lee can rebuilt Solex carburettors professionally and will cost about 110 quid (per carb if you want more than one done).

It also sounds like that your webber isn't set up correctly either or it's not designed to work with your engine.

Also check all fuel hoses for chaffing and leaks. If in doubt, replace the fuel hoses with synthetic yarn hoses only. Do not use rubber hoses since unleaded petrol will destroy them.

I hope this helps.

Seems that you have problem with that new carb you had fitted.
What was the fuel consumptionn like before you fitted it ?
Maybe the autochoke that is floodingthe engine when it'scoldisn't truning off properly, that would use more fuel .
Only guessing, but if the fuel went worse after the carb was put on, then it looks like the last job yo did is causing the problem.

Always good to look at the last thing you did to see if it caused a change of some kind.

13 mpg ? if it was Aircooled i`d say that was pretty good going !!

get it to a rolling road and have it set up properly
try
www.raceshack.co.uk
good lads there

"WEAZLECHIN" wrote:13 mpg ? if it was Aircooled i`d say that was pretty good going !!

I reckon I get about 21mpg out of my 2ltr A/C (24 on Autoroutes), seeing those figures I'm quite happy.

TR

I get between 25mpg to 34mpg from my 2.0 litre Aircooled hightop campervan

phade wrote:I get between 25mpg to 34mpg from my 2.0 litre Aircooled hightop campervan

You must be the only person i have EVER heard of that gets over 30mpg from any petrol T25!!

I've just put a new Weber on mine too, bought from Gower and Lee. Starting from cold doesn't seem to be an issue, but starting from warm/hot does.

Normally when I get in in a morning, foot to floor puts choke on and it runs okay. When getting in again after a recent run, I don't touch the throttle and it starts ok.... not any more! I've tried gently pressing the throttle but all that seems to happen is that the engine floods.

Garage got me to check water levels (no problems there), as coolant is circulated round the choke assembly and when it gets warm, a bimetallic strip turns the choke off. They seem to think that the choke always wants to come on for some reason

Its back in today for a final look over. If nothing is found, its going back

The it isnt set up correctly..

telling you to check the water level is just plain silly... the std carb has exatly the same system..
sounds like the choke is set to come on too much..
the garage that fitted it should have set it up corectly.

As said, a session on a rolling road would be good, if its not running well when warmed up, but only after the choke has been sorted..

Oh, and short trips will be very poor on petrol.. I used to get about 17mpg around town.... from a well set up 1.9DG

shepster wrote: You must be the only person i have EVER heard of that gets over 30mpg from any petrol T25!!

Make that 2 then ....and mines a 2.5i 5 cylinder

phade wrote:I get between 25mpg to 34mpg from my 2.0 litre Aircooled hightop campervan

2.0l A/C Hightop 18-25mpg. 34mpg!!?? I think you need to recalculate your fuel consumption.