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Post by Qipp on Jul 29, 2019 21:15:30 GMT -5
Good evening. I am having problems getting the metering rod set after I adjusted the accelerator pump rod. The accelerator pump rod is set at 35/64 at the top and 18/64 at the bottom leaving a 17/64 throw as specified. The problem I am having is with the metering rod gauge in place there is a 2/32 gap between the lowest point on the pin and the gauge, it will not touch. What am I missing? Is something worn out?
Gordon
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Post by Scoutpilot on Jul 30, 2019 5:09:49 GMT -5
No problem. Reproduction rods often have an elongated eye. Raise the pin in its slot to a point where it is just barely touching the inside of the upper eye. You will not lose the 17/64" throw. When testing for hesitation at throttle up, you may have to raise it a bit more.
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Post by Qipp on Jul 30, 2019 12:04:53 GMT -5
Thanks for the quick reply. So if I understand correctly I need to remove the metering rod gauge and use the metering rod instead to set the pin? I did and had to lift the metering rod slightly to go on the pin. The pin is in the bottom of the slot. I think I have added an image that shows the carb with the gauge in place showing the gap.
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Post by Scoutpilot on Jul 30, 2019 12:20:25 GMT -5
My apologies. I failed to notice the initial 35/64" top reading. This is too low. Set the accelerator pump to a top reading of 48/64"-49/64". This will lower the lever and should still give you a 17/64" throw. Then set the pin to be just below the inside top of the eye.
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Post by Qipp on Aug 4, 2019 15:38:34 GMT -5
I set the top at 47/64 which made the bottom 21/64 so I was not able to get the 17/64 throw at that setting. That was as high as I could set it so I tried the following lower settings measured in 64ths (46/21, 43/20, 41/19, 40/18) and still was unable to get the 17/64 throw. Do I just need to keep tweaking the accelerator rod until I get it right or is it possible the plunger in the carb kit is wrong? The kit is unbranded but the instruction sheet is marked Techlit Co.
Still stumped! Gordon
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Post by Scoutpilot on Aug 5, 2019 11:44:11 GMT -5
If the top is square that will give you issues. Try setting it higher.
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Post by brucew on Sept 8, 2019 15:36:03 GMT -5
According to the way I see it (correct me if I'm wrong, Rick) the lower measurement should always be the same, regardless of the length of the link, because the accelerator pump plunger should be bottomed out in the bore. Changing the length of the link should only change the upper measurement. Correct? But I have a related question that brought me here in the first place. I'm just completing my first (believe it or not) complete overhaul of a WO. I've tinkered some before with the metering rod adjustment etc, and I was under the impression that the pin should be just barely "not touching" the top of the inside of the eye of the rod. With my pump travel set at 17/64 (8.5/32, actually ) and the pin set using a gauge that I bought from someone on the CJ2-A page, my pin is closer to the bottom of the eye of the rod, probably 1/16" or so from the top of the eye. Should I raise the pin to "just barely not touching"? Thanx Much, Scout B-dubya
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Post by brucew on Sept 8, 2019 15:51:18 GMT -5
No problem. Reproduction rods often have an elongated eye. Raise the pin in its slot to a point where it is just barely touching the inside of the upper eye. You will not lose the 17/64" throw. When testing for hesitation at throttle up, you may have to raise it a bit more. I think you already answered my question. Thanx Again. B-dubya
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