Bet you forgot to do something, go back to square 1 and start again!
John
SOS
Comments on: If after all the initial preparation...
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- skyetoyman
- Posts: 630
- Joined: Sun Jan 10, 2010 11:48 am
- Location: Glendale , Isle of Skye
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Re: Comments on: If after all the initial preparation...
Pictures of coil and points etc showing where to test and what to expect would be handy
No change in multi meter reading - points open - points closed.
I assume that means a bad coil ?
No change in multi meter reading - points open - points closed.
I assume that means a bad coil ?
LLS c 1961 on a crescent 42 boat c 1980 + wspcl c 1976 + 102 SD8561 c 1944 + 102 ACR 1948
Re: Comments on: If after all the initial preparation...
I second this request. I've got no spark!skyetoyman wrote:Pictures of coil and points etc showing where to test and what to expect would be handy
No change in multi meter reading - points open - points closed.
I assume that means a bad coil ?
Re: Comments on: If after all the initial preparation...
Hello all,
if there is no change in the LT resistance when points open or closed then there is a leak to earth .
This normally means a dead coil.
This applies to Villiers and Wipac coils. If the points are open there should be a resistance, below 2 Ohms, but a resistance.
However to double check, remove wire from Wipac LT terminal and try again, if you then get the 0.8 to 2 Ohm resistance, the coil is OK but there is a fault with the points and their insulation. Something is shorting out.... maybe a fibre washer missing...
With the Villiers ignitions it is not as easy to disconnect the wire, but it can be done.
I would suggest that any Villiers ignition now needs replacing anyway, especialy if you intend using it on any river with a flow or at sea. They have all long passed their 'crumble by' dates. They were insulate with shellac, which has biodegraded.
To be safe contact George at http://www.villiersparts.co.uk, he can refurbish a Villiers backplate with new parts for £75.00, price as of last week.
Hope this helps.
Regards,
John
SOS
if there is no change in the LT resistance when points open or closed then there is a leak to earth .
This normally means a dead coil.
This applies to Villiers and Wipac coils. If the points are open there should be a resistance, below 2 Ohms, but a resistance.
However to double check, remove wire from Wipac LT terminal and try again, if you then get the 0.8 to 2 Ohm resistance, the coil is OK but there is a fault with the points and their insulation. Something is shorting out.... maybe a fibre washer missing...
With the Villiers ignitions it is not as easy to disconnect the wire, but it can be done.
I would suggest that any Villiers ignition now needs replacing anyway, especialy if you intend using it on any river with a flow or at sea. They have all long passed their 'crumble by' dates. They were insulate with shellac, which has biodegraded.
To be safe contact George at http://www.villiersparts.co.uk, he can refurbish a Villiers backplate with new parts for £75.00, price as of last week.
Hope this helps.
Regards,
John
SOS