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Starts then cuts out

Posted: 13 May 2026, 11:07
by ProducerJon
Hi, new to T25, relatively handy with an old landrover...

Our T25 needs revs to start, and need foot on gas all the time or engine cuts out... it's a B reg, water-cooled petrol original engine. Very few modifications to vehicle.

I've seen comments suggesting adjust idle screw, other saying don't touch on pain of death.

A refreshed carbon was replaced last summer and it ran fine until recently. Lots of pipework replaced at same time as carb.

Hints and tips on where to start/work through much appreciated. Thanks

Re: Starts then cuts out

Posted: 13 May 2026, 18:29
by TONYT25T25
As a starter I would check vaccum pipes, perishing or cracks etc. Or even loose.

Re: Starts then cuts out

Posted: 13 May 2026, 21:25
by jrt
As mentioned plus check the inlet manifold gasket.
Get someone to carefully spray some carb cleaner around it and see if it picks the revs up.
David.

Re: Starts then cuts out

Posted: 13 May 2026, 21:35
by tobydog
And, then, the idle jet....