tri
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| posted on 28/1/06 at 05:30 PM |
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more engine problems
Hi i asked last week about my engine problems with it stalling when put under any load.
i have changed the carb and checked the timeing and it is ok.
it will start and idle ok revs freely but as soon as i drive off the engine stalls and back fires threw the carb.
can anyone suggest what to do now any help would be greatly recieved
Tri
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Ronin
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| posted on 28/1/06 at 05:38 PM |
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I had the same problem with my xflow. Would rev easily when in neutral but as soon as it was under load the engine would stall. It turned out to be
the floats were incorrectly set in the carb.
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tri
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| posted on 28/1/06 at 06:50 PM |
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thought that but the carb was changed so i can't see them both being wrong
Tri
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stevec
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| posted on 28/1/06 at 07:15 PM |
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What type of ignition are you running?
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mookaloid
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| posted on 28/1/06 at 07:20 PM |
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sounds like the vacuum advance is missing or something....
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tri
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| posted on 28/1/06 at 07:22 PM |
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Bosch distributer (breakerless) with switch/amp module.
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rusty nuts
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| posted on 28/1/06 at 07:30 PM |
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Check vacuum AND auto advance , just sucking on vacuum advance pipe should increase revs slightly Auto advance mechanism can sieze and not advance
timing as needed.Check by shining timing light at timing marks with vacuum advance disconnected and raise engine revs , timing should advance . ( move
further away from TDC mark) Vacuum advance can be checked by opening throttle quickly , timing should advance quicker than without vacuum connected.
Check valve timing just in case?
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britishtrident
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| posted on 28/1/06 at 08:47 PM |
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Vac advance is a economy device to improve light load fuel consumption it only works off load --- you can take it off completely and it won't
alter the performance with the loud pedal down, because only works under condition of high vacuum --- ie with the throttle almost closed.
Sticking centrafugal advance is different matter it will affect pick-up. Fixing it is just a matter oil a drop of 3 in 1 in the right place.
However everthing points to a fuel problem most like either fuel supply problem ie blocked pipe or duff fuel pump or blocked main jet or float
level set too low.
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