Vehicle & Technical > Range Rover

SU Carb problems

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poprivit_S3:
Some help please.

I have a 3.5 V8 running on a pair of 1" 3/4 SU carbs. It will run at idle but splutters if you try and drive. I have striped the carbs and reset floats etc but still no joy. Any one local to thrapston or able to offer some advice please  :?

andyb:
Dash pot oil level? If this was low then it would stop the needles from lifting and it would probably splutter then.

Also are you sure that it is not an ignition problem....advance working, points and condensor ok etc

HTH

bertie_bas205:
The dash pot oil is to dampen the carb piston action. I had BIG running problems with my V8 on SU's and it was an ignition fault. Converted it to Lumination, pulls like a train now.


B.

poprivit_S3:
It was the Carb's got a refurb kit and fitted new Jets and Needles. 

anaxemurderer:
Can you give anymore details of the probelm

Mine has had a similar issue! Stumbles on acceleration, especially if you give it alot of fuel.

I've rebuilt the carbs (though not with new needles). I think it seems to be better, though it still needs abit of a tuning tweak. If this doesn't sort it properly i'l start on the ignition again, though that was all checked before.

Cheers

Nick

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