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steammart
Joined: 11 Apr 2011 Posts: 27
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Posted: Sun Apr 17, 2011 6:09 pm Post subject: Morris 8 coils and sparks |
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Hi
I have tried a few different way to get me morris 8 series one to give me a spark, but to no success. I have got a new coil, the distributor is all ok as far as i know. but cant get a new spark.
I have tried running a live directly to the coil and distributor but still no spark, any ideas please? Its driving me nuts
Cheers
Martin |
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Phil - Nottingham
Joined: 01 Jan 2008 Posts: 1252 Location: Nottingham
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Posted: Sun Apr 17, 2011 6:40 pm Post subject: |
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Contact breakers dirty or LT lead to dizzy broken.
Condensor faulty or points fixing shorting is Dizzt a Lucas DKA with Bakelite baseplate as these have their peculiar problem _________________ Rover P2
Rover P4
Rover P5 & P5B
Land Rover S2 & S3
Morris Mini Traveller Mk2 |
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steammart
Joined: 11 Apr 2011 Posts: 27
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Posted: Sun Apr 17, 2011 7:43 pm Post subject: |
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i have a spark at the points, and there is a fibre washer under the points.
cheers |
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Churchill Johnson
Joined: 11 Jan 2011 Posts: 359 Location: Rayleigh Essex
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Posted: Sun Apr 17, 2011 10:24 pm Post subject: |
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have you tried removing the ign coil ht lead from the distributor cap and holding near to earth on the engine then open the points with the ign on and you should see a big spark from the coil lead if not have you replaced the coil recently if so is it the correct one, if you get a good spark then look very carefully at the cap is the centre carbon still in it, if ok the cap may be cracked. |
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Rick Site Admin
Joined: 27 Apr 2005 Posts: 22446 Location: UK
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Nic Jarman
Joined: 05 Oct 2008 Posts: 1031 Location: Stoke by Clare, Suffolk
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Posted: Wed Apr 20, 2011 6:54 pm Post subject: |
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My 8 packed up and it was the condenser. Disconnect the condenser and the car should tick over but not much else. If it does not start then it is something else. I do not remember a fibre washer under the points but I will have a look. Do you have a multimeter? _________________ 1936 Morris 8 Series 1
1973 MGB roadster
1977 MG Midget 1500
Dax Rush |
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Nic Jarman
Joined: 05 Oct 2008 Posts: 1031 Location: Stoke by Clare, Suffolk
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Posted: Wed Apr 20, 2011 7:14 pm Post subject: |
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OK there is a large fibre washer under the moving bit of the points. If it is sparking then it is not shorted out. I could not get a decent condenser so I put an electronic ignition amplifier on my 8 so now it purrs like a kitten with a tin of nuts and bolts tied around its neck.
Make sure the coil is wired the right way.
_________________ 1936 Morris 8 Series 1
1973 MGB roadster
1977 MG Midget 1500
Dax Rush |
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steammart
Joined: 11 Apr 2011 Posts: 27
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Posted: Mon Apr 25, 2011 12:31 am Post subject: |
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thank to all those that replied, she is now a runner, even tho i had a spark at the points, they were not opening and closing correctly, so new points and a fiddle with the carb and he presto.
cheers
Martin |
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Phil - Nottingham
Joined: 01 Jan 2008 Posts: 1252 Location: Nottingham
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Posted: Mon Apr 25, 2011 9:56 am Post subject: |
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My Rover P2 16 has the DKA6 dizzy and I had the same problem - the points heel was actually badly worn comparing to a new set and wax had leaked out of the condensor. It was also missing a parke every now and again causing a backfire _________________ Rover P2
Rover P4
Rover P5 & P5B
Land Rover S2 & S3
Morris Mini Traveller Mk2 |
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Jim.Walker
Joined: 27 Dec 2008 Posts: 1229 Location: Chesterfield
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Posted: Wed May 04, 2011 7:39 pm Post subject: |
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A little late now probably. But the contact between the distributor body and engine block always seems to be overlooked.
Too much resistance will reduce sparking voltage at the coil. The MAXIMUM voltage drop between distributor body with ign. on and points closed should not exceed 0.2V. The same across the closed points. Anything more usually causes bad starting though the engine may run quite well once started because the battery voltage rises when the starter motor disengages.
There SHOULD NOT be much of a spark when the points are seperated manually. A "healthy" spark there usually means a very unheathy condenser.
The engine bonding (earth) link is also an ignition voltage killer, and a significant voltage drop between engine and battery represents voltage "robbed" from the ignition etc. while the starter is cranking the engine. _________________ Quote from my late Dad:- You only need a woman and a car and you have all the problems you
are ever likely to want". Computers had not been invented then! |
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