Interesting about checking the advance with the protractor. I understand about the pointer but where is the stop line to read the amount of degrees to check if it concurs with what's stamped on the cam?

@darrensrestorations991

5 ай бұрын

Rotate the rotor cam untill it stops, then read the protractor. That will be the number of degrees of advance that you have. Sometimes it matches what is stamped, but wear on the cam will lead to more timing. Which is why it must be measured.

@biffick99

5 ай бұрын

@@darrensrestorations991 Thank you. Yes, I get it now.

So I have one of these in my 1982 Land Rover. The Haynes manual says that the mechanical advance should go as much as 42° at 4500 rpm. But mine has the same cam in as yours with 12° stamped on it. Does that mean that I have the wrong cam? Should it say 42° on the cam? Thanks

@darrensrestorations991

29 күн бұрын

The distributor cam is not the same as total advance. 12 deg of distributor advance is 24 degrees at the crankshaft. Add on the static idle advance and you should get to total advance. The Haynes manual may be referring to the total advance including any vacuum advance.

Hi, just replaced the vacuum advance unit, and I couldn t find any info on how so set it up. How many clicks or what should I measure to find a proper set up. Thank you.

@darrensrestorations991

2 ай бұрын

Set timing to what the book says without vacuum hooked up. Then hook up vacuum.

@zingzing5077

2 ай бұрын

@@darrensrestorations991 Hi , iment the vacuum membrane that moves the points.

@darrensrestorations991

2 ай бұрын

If it is a 25D distributor, set the adjuster wheel to the center or middle of the adjustment range.