Club 80-90 Forums

Not sure where you are in Essex, but could always give these chaps a shout as well:

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gjy55split wrote:This is sucking from what I think is the return to the tank.
That'll explain pushing fuel into the crankcase!

I have never used a Webber on a T25 but I cannot see how fuel can end up in the crankcase via the carb ? (usually a duff fuel pump causes this symptom)

ghost123uk wrote: I cannot see how fuel can end up in the crankcase via the carb ? (usually a duff fuel pump causes this symptom)

Back through the beret and the crankcase breather tower ?

New fuel pump already fitted.
I think it's sucking in that much fuel via the return pipe it's filling the cylinders and pushing it past the valves/rings. This is why it wasn't running on the cylinders full of fuel.
Pop rocker covers off after running it with the return pipe connected - and it runs only on 2 at best - and petrol pours out.
Disconnect return hose and it runs nigh on perfect.

Souther carbs confirmed it can't be a fuel return pipe.
Previous owner however had run it like this for the last 18mths though before it started playing up:?:
Any photos or links to diagram still greatfully received.
Thanks

Still looking for a diagram / any info. on jet sizes, if someone can point me in the right direction...
Thanks

you have pm