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Jan 29, 2012 18:17:02 GMT
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Hi guys! Need some advice! Got a problem with my 69 Vauxhall Viscount. Think it may be the carb. Its always been a poor starter from cold but once warm its fine. Not enough fuel getting through. Somebody in the past has fitted an in line fuel filter that sits a little too high on the inner wing behind the battery. As a result fuel drains back down the fuel line leaving the filter empty when cold. Tried removing the filter and fitting a hand primer but let too much fuel through. Also tried a non return valve but same problem. Put the old filter back on and it turned over but wouldn't run. The fuel pump is fine, theres no blockages in the line, the filter is clean. Poured a drop of petrol down the carb and it ran fine. Today i was advised to try spraying some Easy Start on it. This worked and it starts but it cuts out after about 10 seconds and even sooner if i try to rev it or use choke. I'm hoping its a bit of muck got in the carb. Any ideas?
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Jan 29, 2012 19:14:18 GMT
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my scimitar gtc had a similar problem which it turned out to be a weak fuel pump (it pumped but not enough) . had to pour fuel down the carb to start it, once started it ran no problem. i know you said the pump is ok but is it working fully hope the helps
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Jan 29, 2012 19:29:53 GMT
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Its the old glass bulb type of pump. Its always full with fuel. I know when i brought the car last October the seller said the carb needs setting up properly coz it spits every now and again. I had the car out on Friday afternoon and it ran fine. Its only when i tried to put that hand primer on that its all gone tits up! I think it was a case of if it ent broke, don't fix it!
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Jan 29, 2012 22:35:37 GMT
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I'm guessing you put the hand primer on the tank (low pressure) side of the pump not the engine (high pressure) side ? It could be as simple as these pumps are made to "push" so can't cope with any extra restriction on the "suck" side - hope it makes sense. I took the innards out of my glass pump and fitted a cheapo electric motor by the tank, never had any problems for the 10+ years it was on, an always g'teed to start even if left for months ('leccy pump fills the carb so no need to drain the battery spinning the motor to prime the carb, quick pump on the load pedal squirts neat petrol into the manifold and it fires straight up  ) |
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Jan 30, 2012 11:00:59 GMT
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Not being mechanically minded I'm not gonna tamper with things i don't know about. Gonna get some advice from a garage near where i live that knows about old motors. thanks anyway guys!
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