timing question
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Joined: Oct 2001
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From: boothbay maine
timing question
i have a 1980 L48, manual transmission, it has no emssions equipment, dynomax sidepipes, a torker intake and an edelbrock 600cfm carb. I put the timming light on, and the mark cannot be found at idle, after searching i noticed it was on the other side (10 o'clock as opposed to 2o'clock). the vaccum advance line made no difference on or off. If i roated the distrubtor to bring the mark to 12degrees BTDC, the car idled fine, but backfired and chocked with any amount of gas. Any ideas??
Race Director
Joined: Nov 2000
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From: Waterloo ontario Canada
Re: timing question (scorciae)
Are you sure you are on number 1 plug wire. It is the first plug wire on the drivers side. It seems impossible that the timing is off that far. Also when the vacuum line to the distributor is disconnected the timming should back right off and the idle change.
Setting timming is done without the vacuum line on the distributor. Check vacuum in the line and also check if the vacuum advance is working in the dirstributor. With a piece of tubing and sucking with your mouth with the distributor cap off you should see the plate holding the rotor should advance when sucking and go back when you stop sucking.
Setting timming is done without the vacuum line on the distributor. Check vacuum in the line and also check if the vacuum advance is working in the dirstributor. With a piece of tubing and sucking with your mouth with the distributor cap off you should see the plate holding the rotor should advance when sucking and go back when you stop sucking.
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Joined: Oct 2001
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From: boothbay maine
Re: timing question (norvalwilhelm)
i am sure it is on the number 1 cylinder, we tried them all anyway, my dad thought it might be a vaccum problem too, but the car has been running for over a year like this, does that make sense?
Melting Slicks
Joined: Mar 1999
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From: Apex NC
Re: timing question (scorciae)
. Any ideas??
Safety Car
Joined: Feb 1999
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From: Fountain Hills AZ
Re: timing question (scorciae)
Is the mechanical advance functioning? Set the timing back to where it will take some throttle and watch the marks move are you increase rpm to make sure that it is. If the dist is locked up and not advancing, 12º will be fine at idle but not once rpm is increased. I would also consider what sb69coupe posted a possibility.
