Oh No !! I adjusted valves then set timing . I noticed to get 17deg. BTDC my distributor was turned almost all the way to the desination

R . I assumed the adjustment from timming marks on crank shaft

would have put me some where in the middle of distributor adjustment. I noticed I had play on my distubutor cam and it would rotate with out alot of force applied to it. I wondered if the play affected my mechanical points opening and closing. Well I loosened the srcew to the cam in the distributor and shaft pulled up but now I don't think its back in the right position. I'm back firing and not able to start car How do i get the distributor cam back in the right position.

Kevin, this isn't front page news. I'm moving it to the "Help Me" forum.

sorry about that was the only place I could find that had a post menu

what engine are you running that you want to set at 17BTDC ? Is this a dist. with points or not ? and describe what you took apart in the dist.. For one thing you will most likely need to bring the #1 piston up to tdc on the compression stroke. and re assemble what ever you took apart. I am running a '79 zx ignition and at 10 d btdc. in L-24 , I run plus fuel with no pinging and get 23 mpg I dont know if any of this help but let me know.

I'm running a 72 240z L24 engine stock distributor with single mechanical points. 17 BTDC is manual setting for no smog stuff.

10 deg. BTDC @650 RPM is with emissions control. I guess I will

take out the points and the cover over the weights looks like there

is only 2 ways to put the dist. cam back in. I must be 180 deg out.

Thanks for your reply maybe I'll get a chance to work on it tomorrow.

I'll let you know how i'd made out . Oh by the way I forgot to pull

off the vacuum advance and plug it when i set the timing so I'll

reset it when I get the car running again. Just goes to show ya

If it ain't broke don't fix it.

To all concerned I got the 240z running again. I spring had came off

inside the distributor. The spring is connected to the weights. That is

why I had play in the cam that opens and closes the mechanical points. Cam was in 180 degrees out that why I couldn't start and

was backfiring. I re-gapped the points and set timming.