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Wont start

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Wont start

Post  S.C_07 on Tue Apr 12, 2016 6:49 pm

Hi
I have a 1958/59 falcon with i brlive a 9E engine and its hving problems starting. There is a spark although its weak and fairly inconsistant ( i have replaced the condensor and ignition coil ) , and there is fuel flowing to the carb. However on inspection of the engine ( where the carb connects to the engine block itself ) there is no apperent gap above the piston ( for the fuel to enter ) even when the piston moves after cranking it over , is this normal , if not is there a solution.

If anyone has any ideas to any of my problems i would be extreemly gtratefull
Sc

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Re: Wont start

Post  Jack Clegg on Tue Apr 12, 2016 7:26 pm

Normal two-stroke engine, sucks the fuel mix under the piston into the crankcase. Not your problem. TTFn Jack
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Things to check

Post  piston 197 on Tue Apr 12, 2016 7:32 pm

Timing, is the spark at the right time before top dead centre?
Carburettor, is the carburettor clean with all jets clear?
Flywheel, is the flywheel correctly positioned on the shaft and retained by a woodruff key?
any of the above will cause starting/running problems
JH
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Poor starting

Post  kerabo on Tue Apr 12, 2016 8:34 pm

Once started is it ok

Ken
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Re: Wont start

Post  S.C_07 on Tue Apr 12, 2016 8:44 pm

Thank ypu very much for your responses i will definetely check up on everything youve suggested . Unfortuantly i havnt had it started at all Ken looking for suggestions on how to get it started
Thank you very much for everyones help so far
Sc

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Poor starting

Post  kerabo on Tue Apr 12, 2016 8:48 pm

Well you shouldn't need to but try closing the plug gap right up so a weak spark can jump it. Just to prove a point. If that don't start it put a thimble full of fuel in the plug hole nd see if
Just a way of locating the problem

Ken
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Re: Wont start

Post  S.C_07 on Wed Apr 13, 2016 7:19 pm

Cheers Ken i closed the gap and now get q consistant spark but Ive just tried putting a bit of fuel in the chamber , yet still nothing happens . Could anyone advise me on the best way to sort out the timing of the spark .
Thanjs
Sc

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rough guide

Post  piston 197 on Wed Apr 13, 2016 7:34 pm

1 set point gap to 12 to 15 thousandths of an inch
2 Take off cylinder head, rotate engine forwards until piston is at top of stroke, rotate backwards until piston is about 1/2" below top position, rotate again forwards until piston is 11/64"from top position.
3 check points are just opening at this point, ( a cigarette paper between the points will be released just as the points open)if not rotate the points back plate until paper just releases when the piston is 11/64" before top dead centre

You can get all technical with electric meter and clock gauge, but at the end of the day it is just lawnmower technology, not rocket science

All of the above will be no use if the flywheel is not keyed properly onto the shaft, always worth removing the flywheel and checking, ( the nut in the centre is self extracting, just undo to pull it off)
JH
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Re: Wont start

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