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Discussion Topic:
engine idle speed
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Wolfie |
12-11-2012 @ 7:49 PM
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New Member
Posts: 146
Joined: Oct 2009
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Thanks Super, I will try that.
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supereal |
12-11-2012 @ 9:46 AM
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Senior
Posts: 6819
Joined: Oct 2009
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Without a tachometer, the best way to set the idle speed is to lower it with the throttle shaft adjuster until the engine begins to lope, then increase it until a steady idle is reached. Usually, some minor adjustment of the carb's two idle needles is necessary to accomplish a good idle.
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TomO |
12-07-2012 @ 7:48 AM
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Senior
Posts: 7256
Joined: Oct 2009
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450 - 500 RPM for a standard transmission.
Tom
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Wolfie |
12-06-2012 @ 8:56 PM
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New Member
Posts: 146
Joined: Oct 2009
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I changed the accelerator return spring today and took the car for a drive and my problem was cured. That was the fix, it was easy to do, and the spring was $6.00. Now I need to adjust the idle. What is the recommended idle speed? Thanks for the help!
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supereal |
11-06-2012 @ 12:34 PM
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Senior
Posts: 6819
Joined: Oct 2009
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An idle speed above 500 rpm will produce gear grinding, too. Using 140 weight oil in the transmission also helps, as it slows down the cluster a bit between gear shifts. I suspect the problem will diminish when you get your throttle problem fixed.
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Wolfie |
11-05-2012 @ 5:25 PM
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New Member
Posts: 146
Joined: Oct 2009
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I took the throttle rod off and it wasn't adjustable. The return spring did seem weak. I resorted to Super's comment on the screen door spring but used a bungee cord and it returned the idle to normal all the time on a short ride. I'll replace the return spring. I'm still getting some grinding when shifting so I'll adjust the clutch too.
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Wolfie |
11-05-2012 @ 5:24 PM
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New Member
Posts: 146
Joined: Oct 2009
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I took the throttle rod off and it wasn't adjustable. The return spring did seem weak. I resorted to Super's comment on the screen door spring but used a bungee cord and it returned the idle to normal all the time on a short ride. I'll replace the return spring. I'm still getting some grinding when shifting so I'll adjust the clutch too.
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Wolfie |
11-05-2012 @ 5:24 PM
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New Member
Posts: 146
Joined: Oct 2009
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I took the throttle rod off and it wasn't adjustable. The return spring did seem weak. I resorted to Super's comment on the screen door spring but used a bungee cord and it returned the idle to normal all the time on a short ride. I'll replace the return spring. I'm still getting some grinding when shifting so I'll adjust the clutch too.
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supereal |
11-05-2012 @ 9:32 AM
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Senior
Posts: 6819
Joined: Oct 2009
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The usual problem with a lazy throttle return is the spring on the throttle shaft at the firewall. The replacement, 48-9737, is $6 at C&G. This spring gets a lot of use, and may look good, but eventually loses its tension. I've seen more than one old Ford with a piece of screen door spring attached to the throttle linkage to fix the problem. Also, be sure the two eye bolts that hold the shaft to the firewall are in position and not binding the shaft..
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Old Henry |
11-04-2012 @ 9:05 PM
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Senior
Posts: 738
Joined: Apr 2010
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Just wondering if you've done that yet?????
Old Henry (The older I get, the better old looks.)
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