19-08-2020, 09:45 PM
(19-08-2020, 09:18 PM)Peter Naulls Wrote: Jamie,
I had problems with the timing over-advancing on my 37 Ruby; when set to give a reasonable pick-up at low revs it sounded quite rough at higher revs. I took the distributor off, clamped it in the vice and made up a couple of plasticard discs, one to screw to the distributor body, and another to slip tightly over the shaft where the rotor arm normally fits. Having marked one of these in degrees I was able to accurately measure what was happening. I found it to be advancing by about 12 to 13 degrees even though the holes looked only slightly worn.
I welded up the holes in the base plate as Chris described, then gradually opened them up with a round file until I had my preferred 7 degrees. You can do them one weight at a time to make sure they both "stop" at the same advance.
It made a big difference to the running of the car. Well worth the time spent.
Peter.
Thank you for the suggestion and information, Peter. This sounds a good way to check the actual state of mine.
I suppose the question is now: what is the correct advance for the three bearing engine; 8 or 12 degrees?
Regards,
Jamie.