Mud-club

Vehicle & Technical => Range Rover => Topic started by: poprivit_S3 on April 30, 2008, 20:57:21

Title: SU Carb problems
Post by: poprivit_S3 on April 30, 2008, 20:57:21: 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 :?
Title: Re: SU Carb problems
Post by: andyb on May 01, 2008, 18:37:07: 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
Title: Re: SU Carb problems
Post by: bertie_bas205 on May 08, 2008, 00:47:53: 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.
Title: Re: SU Carb problems
Post by: poprivit_S3 on May 22, 2008, 21:06:16: It was the Carb's got a refurb kit and fitted new Jets and Needles.
Title: Re: SU Carb problems
Post by: anaxemurderer on June 26, 2008, 14:51:14: 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
Title: Re: SU Carb problems
Post by: Poprivit-RRC on July 01, 2008, 22:21:47: The issue is around getting the carbs balanced. Be warned it is a lot of messing around to get them right and i have now decided to fit a 4 Barrel Edelbrock wit a offenhauser duel plane manifold.

Easier to setup and much better running.

If you want a good pair of SU's let me know :)
Title: Re: SU Carb problems
Post by: ben_haynes on July 02, 2008, 01:23:09: Quote from: Poprivit-RRC on July 01, 2008, 22:21:47
The issue is around getting the carbs balanced. Be warned it is a lot of messing around to get them right and i have now decided to fit a 4 Barrel Edelbrock wit a offenhauser duel plane manifold.

Easier to setup and much better running.

If you want a good pair of SU's let me know :)

what do you want for the carbs, i got to drop a new engine in mine and want to fit SU's so i can fit the LPG but need to re con them and could do with a ood set to get me going straight away
Title: Re: SU Carb problems
Post by: Bowie on July 05, 2008, 23:26:42: Fitting LPG to an EFI is actually easier than carbs, you know?
Title: Re: SU Carb problems
Post by: ben_haynes on July 05, 2008, 23:31:52: Quote from: Bowie on July 05, 2008, 23:26:42
Fitting LPG to an EFI is actually easier than carbs, you know?

i havnt got an EFi engine, i have Solex carbs and they are a PITA to adjust as you need a bit of kit that you cant buy any more after my dads kit broke trying to adjust them for the MOT
Title: Re: SU Carb problems
Post by: Poprivit-RRC on July 14, 2008, 11:15:05: Drop round and have a look i have 2 sets one fully rebuilt but i will want a good price for these and another sold to me as being refurb 12 months ago but the bottom rubber seals were not changed so they leak slightly. I can seal these for you after you have had a look at them with some ally sealing compound :)

give me a shout if you want to drop over.

cheers rich

07747016764