CLASS RACER FORUM - View Single Post - Timing retarding 2* after installing crank trigger

FED 387 · 06-09-2016, 12:30 PM

Most chain driven cams will retard when you rev the engine and then let the RPM's come back down its the play/slack in the chain doing it---just like what yours is doing--- suggestion---- rev the engine to say 4000 RPM -5000 RPM hold the rpm steady then hold the timing light on the balancer mark move your distributor or pick up on the crank trigger whatever you do to set the timing to the desired timing -- tighten down your pick up or distributor---then recheck the timing again at say 4000 see if it stays where you set it or if it moves- revving and then letting the RPM go up and down allows the chain to advance and retard the timing as the chain loosens and tightens--- make sense??? FED 387

06-09-2016, 12:30 PM	#8
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,423 Likes: 538 Liked 333 Times in 180 Posts	*Re: Timing retarding 2 after installing crank trigger** Most chain driven cams will retard when you rev the engine and then let the RPM's come back down its the play/slack in the chain doing it---just like what yours is doing--- suggestion---- rev the engine to say 4000 RPM -5000 RPM hold the rpm steady then hold the timing light on the balancer mark move your distributor or pick up on the crank trigger whatever you do to set the timing to the desired timing -- tighten down your pick up or distributor---then recheck the timing again at say 4000 see if it stays where you set it or if it moves- revving and then letting the RPM go up and down allows the chain to advance and retard the timing as the chain loosens and tightens--- make sense??? FED 387