Need HELP! changed a broken disty.
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New User
Joined: Jan 2013
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Need HELP! changed a broken disty.
ok heres my story... i drove my truck to my buddys parked it and went to start it up again and would start, found out the disty was broke, rotor wasnt moving, took that out and my oil pump was seized so replaced both items, now im putting it all back together, and puyt my harmonic balancer on 0* btc on the #1 piston . and lined up my disty with #1 spot on the cap, tryed to start the truck, and nothing sounds like its not firing, we got the right firing order, but now we put the piston in the same spot and rempve the cap and the disty rotor is 180* in the wrong spot! wat are we doing wrong any thoughts? im completly lost and frustrated.
More Turbo
Joined: Oct 2009
Posts: 731
Likes: 6
From: Jonesborough, TN
First of all, you're not using punctuation and capitalization which makes it hard to figure out what you are saying. I had to read your post 3 times to figure out what you were saying so I can respond. Some really knowledgeable folks here may not be that patient and will ignore it. We want to help, but you have to work with us, too.
Now on to your problem.
Did the distributor gear on you old distributor strip? If so, you have metal in your motor and probably some bigger issues in your near future.
You say that your motor was set to TDC, and then it wouldn't start and now is 180 degrees off. Did you set the motor to TDC on intake or exhaust? It is a 4 stroke motor and so has 2 rotations per cycle. Suck, squeeze -TDC - Bang,blow - TDC. If your initial set point was TDC on the exhaust cycle, it could be 180 degrees out of phase when you double checked it.
You can verify this by bumping your starter with the #1 plug removed and when it pushes your thumb off the hole, you know you are on compression. That's the TDC you want to set your distributor to. You can also verify by pulling the valve cover and making sure both valves are closed when at TDC, but that can be more hassle than the finger over the hole method.
I hope that helps, and I hope that your problem is that simple. Good luck.
Now on to your problem.
Did the distributor gear on you old distributor strip? If so, you have metal in your motor and probably some bigger issues in your near future.
You say that your motor was set to TDC, and then it wouldn't start and now is 180 degrees off. Did you set the motor to TDC on intake or exhaust? It is a 4 stroke motor and so has 2 rotations per cycle. Suck, squeeze -TDC - Bang,blow - TDC. If your initial set point was TDC on the exhaust cycle, it could be 180 degrees out of phase when you double checked it.
You can verify this by bumping your starter with the #1 plug removed and when it pushes your thumb off the hole, you know you are on compression. That's the TDC you want to set your distributor to. You can also verify by pulling the valve cover and making sure both valves are closed when at TDC, but that can be more hassle than the finger over the hole method.
I hope that helps, and I hope that your problem is that simple. Good luck.
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New User
Joined: Jan 2013
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hey sorry about the punctuation. I am pretty bad at it as you can tell.
I solved the problem, but now have another. The truck now starts good, but wont stay going when i take my foot off the gas.
could it just be the timing off? or am i looking at something else?
I solved the problem, but now have another. The truck now starts good, but wont stay going when i take my foot off the gas.
could it just be the timing off? or am i looking at something else?
Fleet Mechanic
Joined: Jul 2011
Posts: 1,916
Likes: 4
I had trouble at first too, reading your first post.
Check a couple of things.
First, pull the #1 spark plug (passenger side of the motor, all the way towards the radiator) and verify that it's at TDC of the compression stroke. To do this, stick your finger in the spark plug hole, and have someone put a ratchet on the balancer. Crank the motor over by hand until you feel air blow by. Once you feel air, stop, pull your finger out, get a light, and slowly spin it over till the piston hits the end of it's stroke.
Once you know it's at TDC of the compression stroke on the #1 cylinder, make sure that the mark on the harmonic balancer lines up with the timing pointer on the motor. If it doesn't, your balancer has slipped and you won't be able to get the timing set accurately. It'll be off by a few or more degrees (which, by the sound of it, your balancer has slipped and it is actually a little more retarded than it should be).
If the balancer lines up with the mark on the pointer, then it hasn't slipped and it should be timed according to the sticker on your radiator support. It can be 6, 8, or 10 degrees before top dead center.
Cylinder numbering for Ford:
Firewall
4 8
3 7
2 6
1 5
Fan
Radiator
Once you know the firing order and timing is correct, set your idle speeds and mixtures on your carburetor. Then you should be just fine.
Check a couple of things.
First, pull the #1 spark plug (passenger side of the motor, all the way towards the radiator) and verify that it's at TDC of the compression stroke. To do this, stick your finger in the spark plug hole, and have someone put a ratchet on the balancer. Crank the motor over by hand until you feel air blow by. Once you feel air, stop, pull your finger out, get a light, and slowly spin it over till the piston hits the end of it's stroke.
Once you know it's at TDC of the compression stroke on the #1 cylinder, make sure that the mark on the harmonic balancer lines up with the timing pointer on the motor. If it doesn't, your balancer has slipped and you won't be able to get the timing set accurately. It'll be off by a few or more degrees (which, by the sound of it, your balancer has slipped and it is actually a little more retarded than it should be).
If the balancer lines up with the mark on the pointer, then it hasn't slipped and it should be timed according to the sticker on your radiator support. It can be 6, 8, or 10 degrees before top dead center.
Cylinder numbering for Ford:
Firewall
4 8
3 7
2 6
1 5
Fan
Radiator
Once you know the firing order and timing is correct, set your idle speeds and mixtures on your carburetor. Then you should be just fine.
Fleet Mechanic
Joined: Jul 2011
Posts: 1,916
Likes: 4
Find TDC of the compression stroke on the #1 cylinder with the distributor in the motor. Make sure the balancer hasn't slipped. If it hasn't slipped, crank the motor, get it running, and double check your timing. Set it to whatever the sticker on your radiator support says it should be at.
Once you've done that, set your idle speed and fuel mixture on your carburetor. Then, whenever a good cold morning hits, check your choke adjustment and fast idle speed and make sure they're set right too.
Retarded ignition timing can CAUSE the idle speed to be slow, and advancing the ignition timing can cause it go faster, but anytime the timing has been played with, you have to adjust the idle speed and re-set the fuel mixture. You do not adjust timing to set idle speed. Set the timing correctly, then set the speed via the screw on the throttle linkage of the carburetor.
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