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Showing results for tags 'carburettor'.
Found 3 results
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Hi all, My HS6 carbs have developed an annoying ad-hoc problem and I thought I would ask for some guidance. Every now and then the rear carb float chamber overflows with petrol from the overflow valve when - mainly when the engine is switched off but sometimes when running. It suggests to me that the float valve is not closing correctly, but why not overflow all the time. I have checked the float integrity, looked for chamber debris, added washers under the valve seat to activate it earlier, and changed needle valves. What next? Cheers Mark
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Hello (again) I am pressing on with my glacial-speed work on my '4, with a view of getting it running again. Or at least moveable. With the aid of the Forums, so far I have repaired the pedal box, clutch hydraulics, fuel tank, pump and have moved through the system to the carbs. These are now removed awaiting a gasket set rebuild. I was surprised that the vacuum line from the carb(s) to distributor was blocked. This might explain at least one reason for its poor running the last few times it was on the road, about 7 years ago. I realise this can be deduced with a timing light if the the ignition advance isn't working & the vacuum advance in the distributor (a likely culprit) is ok Anyhow - another thing to check if your car is running, but not that well. I was very lucky to have a reel of wire which I could feed in to prod my vacuum pipe, then I found I could blow through it, followed by a good squirt of freeing oil. Thanks Adrian
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Hi all, the engine is getting machined so I have moved onto the carbs. Unfortunately the piston is sticking badly (almost solid) in the suction chamber. See photo with engineers blue mark, I have tried the other piston and that sticks in the same place. Is there a standard way to sort this out?. I was thinking of 2000 grit wet and dry then scotch bright cloth or is this just wasting my time?. If new carbs are required should I upgrade from h6 to hs6 as these are a lot cheaper. Many thanks for any help Adrian
