1 jmans@igubu.saix.n Mon Dec 9 10:22 80/3181 [Fwd: Re: Rangie carb tro ------------------------------ Date: Thu, 07 Nov 1996 20:05:25 -0800 From: jmans@igubu.saix.net (Beta-user Johannes Mans) Subject: [Fwd: Re: Rangie carb trouble] Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Matthew Loxton wrote: > This weekend we *fixed* my '87 Rangie and while it used to have a flat spot on heavy acceleration. We found that the driver side carb metering needle had been > Now that the carbs are balanced, timing is spot on, advance working, the flat spot covers almost *any* form of acceleration. From pull-away up to ~15-20 Km/h i > If acceleration is applied sloooooowly, everything is sort of ok and 120Km/h can be reached, but still, if I hit the pedal, it immediately loses power. > I have about run out of ideas, any thoughts anybody? > Matthew Loxton [ truncated by lro-digester (was 7 lines)] > Green Pumpkin Rangie, sick sick sick > matthewl@dinet.co.za Hi Matthew Just a couple ideas in general. I had a similar problem on a golf a couple of years back. It turned out to be a vacuum leak in the inlet manifold. As you accelerate ,you suck in to much air, turning your mixture lean hence you lose power. Check all pipes and hoses connected to your manifold and carburettor. Also check your vacuum advance on your distributor since if it does not function your timing goes out as your revs increase. I recently adjusted my SII stromberg with a CO meter.All readings were perfect ,but I could not pull away. It turned out that the mixture was far to lean even though the readings indicated otherwise. I made a simple jig to lift Needle from the dashpot chamber and adjusted the carb again. Same principle as adjusting a Mini SU carb.Revs increase - mixture rich,Revs decrease - mixture lean, Revs static or slight increase followed by decrease- mixture fine. My SII is runnung Purr-fectly now. Remember that CO meters are sometimes designed for vehicles fitted with catalytic converters and thus the CO before and after the converter is different. Thus measuring CO on a car without catalytic converters can give the wrong readings. Good luck Johannes Mans Pretoria mans@siemens.co.za / jmans@igubu.saix.net ------------------------------ END OF LAND ROVER OWNER DIGEST Input: messages 1 lines 80 [forwarded 14 whitespace 13] Output: lines 103 [content 35 forwarded 11 (cut 3) whitespace 8]