In Reply to: Climax ignition timing posted by Andrew Moynagh on December 08, 2010 at 15:17:18:
For those of you who are still using the workshop manual system of timing at 2-3 deg btdc static this will be giving you a max advance of 42 deg above 4000rpm. This is somewhere in the order of 7-10 degrees more than is now advised. I have no idea why this is or whether it was related to unleaded petrol but it seems a potential recipe for a burnt out engine.
: For those of you with Climax engines:
: Can any of you tell me what sort of timing curve you are using?
: The D3AH4 distributor no 40566A as supplied for the Climax motor has 38 deg of crank advance. This means if set to 2-3 deg advance static as per the workshop manual the max advance is 40-41 deg. Mike Brotherwood and others suggest a max advance of 35 deg which means the tick-over advance is only 4 deg which is not enough.
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