HELP! Installed new distributor - NEW NOISES!
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HELP! Installed new distributor - NEW NOISES!
HELPHey, folks...
I installed a new distributor on my wife's 1992 F-150, and realize NOW that I screwed up by not marking the position of the distributor housing before I removed everything. I DID, however, mark the ROTOR position...I got the distributor somewhat close to the original rotor mark, and the truck seems to run fairly well, but...NOW I hear what sounds like valve chatter during acceleration!
I only drove the truck a few miles to warm it up, after trying to fix the screwed-up timing; got rid of the strong gas-fume smell, it runs more smoothly, but I'm really concerned about the noise!
HOW DO I FIX THIS?
Could I have screwed up the valves by driving with the timing so far off?
Thanks in advance...
P.S. I DO have a timing light - a digital Actron.
I'm not very experienced in timing a truck, and sure would appreciate your input (no pun intended...well, maybe a small one)
I installed a new distributor on my wife's 1992 F-150, and realize NOW that I screwed up by not marking the position of the distributor housing before I removed everything. I DID, however, mark the ROTOR position...I got the distributor somewhat close to the original rotor mark, and the truck seems to run fairly well, but...NOW I hear what sounds like valve chatter during acceleration!
I only drove the truck a few miles to warm it up, after trying to fix the screwed-up timing; got rid of the strong gas-fume smell, it runs more smoothly, but I'm really concerned about the noise!
HOW DO I FIX THIS?
Could I have screwed up the valves by driving with the timing so far off?
Thanks in advance...
P.S. I DO have a timing light - a digital Actron.
I'm not very experienced in timing a truck, and sure would appreciate your input (no pun intended...well, maybe a small one)
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This is my wife's truck...You can imagine how desperate I am to have it run properly; ever mess up a WOMAN'S beloved truck? "Hell hath no fury..." etc.
Last edited by RocketmanVT; Dec 30, 2012 at 10:33 AM. Reason: Brain cramp
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
The fact it runs means you're close it just needs the timing set to spec... that clatter you hear is pinging from the ignition timing being too far advanced. Get that timing light on there and don't forget to pull the spout plug to disable computer advance before setting the base timing to 10-12 degrees.
Postmaster
Joined: Aug 2005
Posts: 4,728
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From: Cleveland, TN
Hey, folks...
I installed a new distributor on my wife's 1992 F-150, and realize NOW that I screwed up by not marking the position of the distributor housing before I removed everything. I DID, however, mark the ROTOR position...I got the distributor somewhat close to the original rotor mark, and the truck seems to run fairly well, but...NOW I hear what sounds like valve chatter during acceleration!
I only drove the truck a few miles to warm it up, after trying to fix the screwed-up timing; got rid of the strong gas-fume smell, it runs more smoothly, but I'm really concerned about the noise!
HOW DO I FIX THIS?
Could I have screwed up the valves by driving with the timing so far off?
Thanks in advance...
P.S. I DO have a timing light - a digital Actron.
I'm not very experienced in timing a truck, and sure would appreciate your input (no pun intended...well, maybe a small one)
I installed a new distributor on my wife's 1992 F-150, and realize NOW that I screwed up by not marking the position of the distributor housing before I removed everything. I DID, however, mark the ROTOR position...I got the distributor somewhat close to the original rotor mark, and the truck seems to run fairly well, but...NOW I hear what sounds like valve chatter during acceleration!
I only drove the truck a few miles to warm it up, after trying to fix the screwed-up timing; got rid of the strong gas-fume smell, it runs more smoothly, but I'm really concerned about the noise!
HOW DO I FIX THIS?
Could I have screwed up the valves by driving with the timing so far off?
Thanks in advance...
P.S. I DO have a timing light - a digital Actron.
I'm not very experienced in timing a truck, and sure would appreciate your input (no pun intended...well, maybe a small one)
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Freshman User
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Yes, took SPOUT out...
I removed the Spark Out jumper prior to checking the initial timing after putting in the new distributor; as far as I can tell, the timing was off by 19.3 degrees...
The Actron booklet said to enter the desired setting, then move the distributor 'til the marks lined up; is the "desired setting" the 10 degrees?
Do I have to mess with the vacuum advance?
And oil pressure guage shows normal pressure.
The Actron booklet said to enter the desired setting, then move the distributor 'til the marks lined up; is the "desired setting" the 10 degrees?
Do I have to mess with the vacuum advance?
And oil pressure guage shows normal pressure.
Fleet Owner
Joined: Oct 2005
Posts: 20,786
Likes: 1,751
From: Kentucky
I removed the Spark Out jumper prior to checking the initial timing after putting in the new distributor; as far as I can tell, the timing was off by 19.3 degrees...
The Actron booklet said to enter the desired setting, then move the distributor 'til the marks lined up; is the "desired setting" the 10 degrees?
Do I have to mess with the vacuum advance?
And oil pressure guage shows normal pressure.
The Actron booklet said to enter the desired setting, then move the distributor 'til the marks lined up; is the "desired setting" the 10 degrees?
Do I have to mess with the vacuum advance?
And oil pressure guage shows normal pressure.
Factory base timing is 10 degrees BTDC. You can use that or some folks bump the timing up a few to 12-14 depending on the quality of the local fuels and engine state of tune/characteristics.
There is no vacuum advance on this vintage truck.
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Freshman User
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Thank you, gentlemen - I am very relieved to hear the noise is just pinging from advanced timing (Conanski, you ROCK!)
I'm on my way out the door to re-attack the problem - I'll let y'all know the outcome.
(BTW, I've sent you guys a friend request - feel free to tell me to bugger off
)
I'm on my way out the door to re-attack the problem - I'll let y'all know the outcome.
(BTW, I've sent you guys a friend request - feel free to tell me to bugger off
)
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How do I determine the 10 degrees base line for the timing? Do I set the timing light on "10," then move the distributor?
I've gotten the noise level down, but it still rattles a bit under acceleration...
I've gotten the noise level down, but it still rattles a bit under acceleration...
Fleet Owner
Joined: Oct 2005
Posts: 20,786
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From: Kentucky
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