Why is my timing freaking out?
Thread Starter
Pro
Joined: Sep 2004
Posts: 545
Likes: 8
From: Murphy Texas
Why is my timing freaking out?
After a day of autocrossing last week or so, my car seemed to not be able to go over 3500 rpm on the way home, would start to sputter. Figured the car was just alittle stressed. Ran great all day though. So I drove slow on the way home.
But today I took it out and it ran fine.. for about 25 min. then did the same sputtering at 3000, then it got worse and had to drive whole way home at 40. Ides sound fine, and at correct 600rpm.
Is my dist. coming lose and turning when it warms up, do I need to go though all the ignition stuff, plugs, points, rotor after a day of hard driving? or is there somthing else afoot...? '71 350/270hp stock ignition set-up, Rochester 4b. P.S. had the timing set up to "Lar's specs."
But today I took it out and it ran fine.. for about 25 min. then did the same sputtering at 3000, then it got worse and had to drive whole way home at 40. Ides sound fine, and at correct 600rpm.
Is my dist. coming lose and turning when it warms up, do I need to go though all the ignition stuff, plugs, points, rotor after a day of hard driving? or is there somthing else afoot...? '71 350/270hp stock ignition set-up, Rochester 4b. P.S. had the timing set up to "Lar's specs."
Last edited by jake1; Mar 25, 2006 at 08:35 PM.
Drifting
Joined: Jul 2002
Posts: 1,943
Likes: 1
From: Rosemount MN
You say "stock" '71 ignition, points and condensor ???
Runs well for 25 minutes then starts to spit and sputter ???
Shouldn't be anything there that should "heat soak" like the newer HEI modules.
By all means, throw a timimg light on it and check at idle, also have a friend run it up to about 34-3500 and check full advance, just to see if it's working. That'll just about eliminate the ignition.
Runs well for 25 minutes then starts to spit and sputter ???
Shouldn't be anything there that should "heat soak" like the newer HEI modules.
By all means, throw a timimg light on it and check at idle, also have a friend run it up to about 34-3500 and check full advance, just to see if it's working. That'll just about eliminate the ignition.
Thread Starter
Pro
Joined: Sep 2004
Posts: 545
Likes: 8
From: Murphy Texas
Put new filter in carb (little one in front) and a in-line can filter about a year ago. Will put a light on it tomorrow, this happened today. It just at higher RPM's it starts to sound like missfire..
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