everything back together then.. nothing???
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Junior User
Joined: Nov 2008
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everything back together then.. nothing???
darn i just finished puting on my new holley carb and intake along with new cap, rotor, pugs, wires and all hoses etc. it lookes really nice. then after all was complete turned the key and it ran then backfired. I couldn't even keep it running long enough to time it. I tried turning the distributur both directions. I must be way off on my timing. I took some pictures with my digital camera but not close enough i suspect. This sounds really dumb, how do i set my #1 to tdc on the compression stroke. If I knew that I pobably be good to go. I must be a couple teeth of because I can't get it to run for a darn moving the distributor in either direction. Thanks everyone.
Elder User
Joined: Feb 2008
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From: ohio
U would want to pull the #1 plug and have a freind turn the engine with a breaker bar, and ur finger over the plug hole till u feel compression, then line up the balancer mark with the pointer. Then u would want to install the dist with the rotor pointing to the number 1 wire on the cap
Elder User
Joined: Feb 2008
Posts: 797
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From: ohio
either that or find #1 when the engine is on compression stroke at tdc,u would see where the rotor is pointing and start the firing order from there. u could try doing it urself, turning engine by hand with ur finger on the plug hole to verify compression then lining up the pointer on bottom pulley. This is tdc and is where the plug will be firing. Then u would pull up dist enough to turn rotor and get it as close to the #1 post on dist. cap as u can. This will get it running enough to mess with timing to get it up and running so u can set with light.
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Junior User
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I must have been off a tooth. it wouldnt stay running worth a darn. so when i find tdc on the compression stroke I can just put my cap back on and wherever my rotor is pointing i can just start my # 1 spark plug wire and then proceed with my counterclockwise firing order sequence. or do i have to pull up the dizzy. I just thought it might be easier that way. its kind of a bugger to get that oil pump drive to line up without turning the crank. thanks everyone for your input.
Junior User
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Top dead center on compression stroke.
Then,
the distributor rotor must point to the #1 spark plug wire contact on the distributor cap. You'll have to put tape or a mark of some sort on the distributor housing to let you know where #1 spark plug wire contact is located at the distributor cap. You may have to remove and re-install the distributor to get to #1 contact point with the rotor.
Is the timing chain ok ? If it starts and runs, shut her down and just take the distributor cap off and rotate the crankshaft back and forth slightly with the breaker bar. Look out for extra play in the timing chain in the form of movement of the distributor rotor in relation to the movement of your breaker bar. Maybe you know this already.
And finally, my favorite thingamajig
Enjoy
Then,
the distributor rotor must point to the #1 spark plug wire contact on the distributor cap. You'll have to put tape or a mark of some sort on the distributor housing to let you know where #1 spark plug wire contact is located at the distributor cap. You may have to remove and re-install the distributor to get to #1 contact point with the rotor.
Is the timing chain ok ? If it starts and runs, shut her down and just take the distributor cap off and rotate the crankshaft back and forth slightly with the breaker bar. Look out for extra play in the timing chain in the form of movement of the distributor rotor in relation to the movement of your breaker bar. Maybe you know this already.
And finally, my favorite thingamajig
Enjoy
Last edited by seven up; Feb 9, 2009 at 12:04 AM. Reason: to get to #1 contact point with the rotor
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From: Gadsden Purchase
(IMO)
Alvin in AZ
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Lead Driver
Joined: Jan 2003
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From: Ohio
Ok, need to clarify something. You said "it ran then backfired". If it actually started and ran, then the timing wasn't too far off. If it just backfired when you tried to start it then the timing is way off.
Remove cap and turn crank til rotor is pointing to #1, where is the timing mark? Now move crank back til it's at TDC. Loosen and rotate dizzy til rotor points to #1 again. Now try starting it. If it just backfires, you need to either pull dizzy or rotate plug wires 180 degrees.
Remove cap and turn crank til rotor is pointing to #1, where is the timing mark? Now move crank back til it's at TDC. Loosen and rotate dizzy til rotor points to #1 again. Now try starting it. If it just backfires, you need to either pull dizzy or rotate plug wires 180 degrees.
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Elder User
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From: in the springs
I must have been off a tooth. it wouldnt stay running worth a darn. so when i find tdc on the compression stroke I can just put my cap back on and wherever my rotor is pointing i can just start my # 1 spark plug wire and then proceed with my counterclockwise firing order sequence. or do i have to pull up the dizzy. I just thought it might be easier that way. its kind of a bugger to get that oil pump drive to line up without turning the crank. thanks everyone for your input.