Hi all,
Has anyone played around with the advance curves on the D609 type distributor?
What I have found out with having a play around is that it seems to be that my stock L24 running the standard HJG46W carbs tends to like more advance than the distributor will give?
The cam in the distributor has a maximum advance of 9 Degrees (18 Deg Crank) and all of this is comes in in a fairly linear curve up to 1800 rpm on the distributor (3600rpm crank). So with say 14 degrees of static and the total of 18 mechanical advance we have a total of 32 degrees. If I try to advance the distributor to 17 degrees static it starts to backfire lower down the rev range but pulls a lot stronger up the top end of the revs.
I'm thinking of milling out the slot that limits the advance in the distributor cam by an extra 1.3mm to give an extra 2 degrees advance on the cam (4 deg crank) that will gave a total of 36 degrees - I might have to play around with springs but having the distributor tester will certainly make it a lot easier!
Any comments or feedback on the thoughts above would be greatly appreciated before I get too deep!
Paul
Has anyone played around with the advance curves on the D609 type distributor?
What I have found out with having a play around is that it seems to be that my stock L24 running the standard HJG46W carbs tends to like more advance than the distributor will give?
The cam in the distributor has a maximum advance of 9 Degrees (18 Deg Crank) and all of this is comes in in a fairly linear curve up to 1800 rpm on the distributor (3600rpm crank). So with say 14 degrees of static and the total of 18 mechanical advance we have a total of 32 degrees. If I try to advance the distributor to 17 degrees static it starts to backfire lower down the rev range but pulls a lot stronger up the top end of the revs.
I'm thinking of milling out the slot that limits the advance in the distributor cam by an extra 1.3mm to give an extra 2 degrees advance on the cam (4 deg crank) that will gave a total of 36 degrees - I might have to play around with springs but having the distributor tester will certainly make it a lot easier!
Any comments or feedback on the thoughts above would be greatly appreciated before I get too deep!
Paul