Thread: Distributor cam for Lucas 45d4 on a Series 3 4cyl

I'm not sure what you mean by "cam advance". Do you mean ignition timing?

Unless you're changing camshafts and flowing the head and doing up the exhaust and changing the carburretor I wouldn't bother with just changing the curve. The 2&1/4 has a lot of its own weight to overcome and needs a lot of work to show a real improvement.

Hi Davo,

I'm talking about the maximaum mechanical advance, stamped on the 'base plate' of the cam in the distributor (found under the breaker plate).

I'm buying a 45d4 dizzy but it may well not have the right cam or springs for a landrover motor (think it's from a Hillman Hunter). I also have my old D45 dizzy with presumably the right cam and springs but shagged bushes. I am going to change out the cam and springs to the new dizzy if it's different, but before I do that I wanted to make sure it's the right one anyway, as my landy originally had a 24v dizzy (Lightweight FFR) which had already been replaced with a Lucas unit when I bought it years ago.
So in a nutshell, what should the number stamped on the baseplate of the cam (degrees of advance) be in a SIII LR?

Cheers,

Dave

Sorry, I get you now. I have a very vague memory of this being covered somewhere ages ago, but it doesn't come up too often. Maybe these guys: Reconditioned Lucas distributors, rebuilt Lucas distributors, recurved Lucas distributors from Distributor Doctor could help.