TDC
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Mountain Pass
Joined: Dec 2017
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From: okie in Oklahoma ! go fig
Negative cable is unhooked thanks. Just remember to move rotor to no. 1 plug, correct ?
Logistics Pro
Joined: May 2015
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From: Tri Cities, TN
What exactly are you trying to do? Have you had the distributor out?
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Mountain Pass
Joined: Dec 2017
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From: okie in Oklahoma ! go fig
helper pulled it out without marking it. It's back in but doesn't run well. Trying to TDC so I can reset distributor.
Fleet Mechanic
Joined: Aug 2016
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From: Great White North
When you think you have TDC on the number one plug make sure you are on the compression stroke and not the exhaust. You can confirm this by removing the spark plugs and putting your thumb on the number one hole while hand rotating the motor. When you feel air pressure you found number one TDC for timing. Then you remove the cap and look to see where the rotor is pointing. Make sure the wire it points to goes to number one. Repeat six more times and number eight is last one to figure out.
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Mountain Pass
Joined: Dec 2017
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From: okie in Oklahoma ! go fig
When you think you have TDC on the number one plug make sure you are on the compression stroke and not the exhaust. You can confirm this by removing the spark plugs and putting your thumb on the number one hole while hand rotating the motor. When you feel air pressure you found number one TDC for timing. Then you remove the cap and look to see where the rotor is pointing. Make sure the wire it points to goes to number one. Repeat six more times and number eight is last one to figure out.
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Mountain Pass
Joined: Dec 2017
Posts: 177
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From: okie in Oklahoma ! go fig
When you think you have TDC on the number one plug make sure you are on the compression stroke and not the exhaust. You can confirm this by removing the spark plugs and putting your thumb on the number one hole while hand rotating the motor. When you feel air pressure you found number one TDC for timing. Then you remove the cap and look to see where the rotor is pointing. Make sure the wire it points to goes to number one. Repeat six more times and number eight is last one to figure out.
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Fleet Mechanic
Joined: Aug 2016
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From: Great White North
Not trying to pull your leg. Once you have done the number one cylinder do another cylinder with your thumb on the hole until you feel air pressure and then make the rotor align with the wire going to that cylinder. If you do it to all of the holes you are 100% gaurenteed to have the correct firing order. You only have to thumb 7 holes and the last one #8 only has one place left to go. In terms of running rough if your advance (in terms of rotating the distributor housing while it is in the block) if you are popping or backfiring throgh the carb you are early. If it is through the exhaust you are late. If you are getting both you are out 180 degrees and need to remove the distributor and put the correct number one at TDC. Or you could do the thumb air pressure trick to confirm the correct firing order.
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Mountain Pass
Joined: Dec 2017
Posts: 177
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From: okie in Oklahoma ! go fig
Not trying to pull your leg. Once you have done the number one cylinder do another cylinder with your thumb on the hole until you feel air pressure and then make the rotor align with the wire going to that cylinder. If you do it to all of the holes you are 100% gaurenteed to have the correct firing order. You only have to thumb 7 holes and the last one #8 only has one place left to go. In terms of running rough if your advance (in terms of rotating the distributor housing while it is in the block) if you are popping or backfiring throgh the carb you are early. If it is through the exhaust you are late. If you are getting both you are out 180 degrees and need to remove the distributor and put the correct number one at TDC. Or you could do the thumb air pressure trick to confirm the correct firing order.
Logistics Pro
Joined: May 2015
Posts: 4,461
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From: Tri Cities, TN
Timing
If it will start at all it can't be that far off. What is the timing light telling you. Sounds like you may have some wires crossed.
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Mountain Pass
Joined: Dec 2017
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From: okie in Oklahoma ! go fig
Well heck, now why didn't I think of that. Thank you.