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46 cj2a no power up hills

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Nobodyjeff5888 View Drop Down
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    Posted: 15 July 2017 at 6:22pm
Rebuilt carb under Scoutpilot tutelage. Lapped valves and set lash.new fuel pump,fuel lines,electronic ignition,cap,rotor wires plugs. Timed and got sweet spot. But no power going up a hill in high range. She'll climb all day in first. Shift to second and she looses all power. Down shift to first and has a tough time starting out. I'm missing something here and I can't figure it out. Any constructive suggestions will be greatly appreciated. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ol' Unreliable Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2017 at 7:00pm
Try a new condensor? 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Nobodyjeff5888 Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2017 at 7:34pm
installed electronic ignition. No points or condenser 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ol' Unreliable Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2017 at 7:48pm
D'OH!!  I read that and immediately forgot it.  Embarrassed  Is your throttle opening up all the way? 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Nobodyjeff5888 Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2017 at 8:03pm
Yes I'm pretty sure butvi will check
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Stev Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2017 at 8:13pm
My guess is a spark issue. Was this Jeep running before you did all of this work?

 Here are the thoughts /questions that come to mind that I would check: 
- Is the firing order correct? Are the plug wires ends attached well?  
- Are the plug wire fully seated on the plugs? 
- When you Ohm out the plug wires do they are give you the same reading (something like 8 Ohms).
- Check for a cracked insulator on the spark plugs.
- Check the gap on the spark plugs.
- Are the weights for the advance free to move or are they stuck in place.
- I would set the engine up on a vacuum gauge not with the timing marks.

Weird question what voltage is this Jeep?  What voltage is the electric ignition? Do they match.

Stev
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Nobodyjeff5888 Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2017 at 8:35pm
was running before but had this problem. 12volt all the same. Good compression on all cylinders.  Maybe I'm expecting more from the 134 than I should. Just live in a very hilly area
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Nobodyjeff5888 Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2017 at 8:47pm
vacuum timed it all should be good
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Nobodyjeff5888 Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2017 at 9:00pm
the only item not replaced yet is the coil. Just picked one up. The original tests out ok though
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Adrian Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2017 at 9:22pm
Originally posted by Nobodyjeff5888 Nobodyjeff5888 wrote:

was running before but had this problem. 12volt all the same. Good compression on all cylinders.  Maybe I'm expecting more from the 134 than I should. Just live in a very hilly area


You need to move to somewhere with tiny hills , although with the low gearing I have not had any problems with my one, but there won't be too many steep ones that it will fly over in top.

Adrian
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Stev Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2017 at 9:45pm
OK good info.

What was the max vacumm you on the vacumm at 2,000 rpms?  21 pounds?  

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Post Options Post Options   Thanks (0) Thanks(0)   Quote RSR_MK Quote  Post ReplyReply Direct Link To This Post Posted: 15 July 2017 at 10:17pm
I have one with a similar issue, it is what I could discribe as weak. Engine vitals are good, 120 on compression, good steady vacuum at 20+. Runs well but weak on hills. Was reading in the manule that the rotor bug should "spring" back if turned. Mine did not, when I checked the advance weights one spring was missing and the other is weak, loose at rest. I put what I had on hand on the missing side and it helped. Still need to replace both to know for sure but I think the advance is at least part of my issue.

Mike
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Nobodyjeff5888 Quote  Post ReplyReply Direct Link To This Post Posted: 17 July 2017 at 3:19pm
Ok checked and found throttle linkage was missing a cater pin behind the motor. Ended up drilling hole thru firewall to replace it. Helped some but still not enough power to start out on steep hill. Will replace coil and check the advance to see off it's working. Thanks for all the help so far.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jpet Quote  Post ReplyReply Direct Link To This Post Posted: 17 July 2017 at 4:03pm
Originally posted by Nobodyjeff5888 Nobodyjeff5888 wrote:

Ok checked and found throttle linkage was missing a cater pin behind the motor. Ended up drilling hole thru firewall to replace it. Helped some but still not enough power to start out on steep hill......
So now I assume you have checked and the butterfly is opening all the way when the pedal is pushed? ...(not just when you hand pull the linkage).
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Nobodyjeff5888 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Nobodyjeff5888 Quote  Post ReplyReply Direct Link To This Post Posted: 17 July 2017 at 4:24pm
No. Will check that tomorrow
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Stev Quote  Post ReplyReply Direct Link To This Post Posted: 17 July 2017 at 4:33pm
2X on JPET suggustion - Have an assistant push down on the accelerator with the choke open.  Check to make sure the throttle plate opens all the way up.  If not adjust the linkage form the accelerator that attaches the carburetor.

Then check to see what you can get on the vacuum gauge at 2,000 RPMs assuming you can were not getting to 2 grand before.  
Stev
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RSR_MK Quote  Post ReplyReply Direct Link To This Post Posted: 17 July 2017 at 4:56pm
one issue I have seen more than once is this screw that attaches the throttle linkage to the butterfly. 



It can be making poor contact and cause a partially opened throttle. This is a poor example but one I have on the shelf. The screw should have a pin on the end to fit in the linkage that your foot feed connects to. 

I have found the center hole to be the one to use in all cases so far, others may differ on that.

Mike

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Nobodyjeff5888 Quote  Post ReplyReply Direct Link To This Post Posted: 17 July 2017 at 5:37pm
at work now but will check tomorrow. Thanks.
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