The CJ3A Page CJ3B.info

Post reply

Warning: this topic has not been posted in for at least 120 days.
Unless you're sure you want to reply, please consider starting a new topic.

Note: this post will not display until it's been approved by a moderator.

Name:
Email:
Subject:
Message icon:
Verification:
Type the letters shown in the picture
Listen to the letters / Request another image

Type the letters shown in the picture:
Write the word between words Jeep from this JeepWILLYSJeep?:
How many slot has a GPW grill?  7 - 9 - 11:

shortcuts: hit alt+s to submit/post or alt+p to preview


Topic Summary

Posted by: Carls_jeep
« on: January 05, 2012, 11:09:26 PM »

If the metering rod setting tool is the same for both carbs what I posted should work.
Posted by: Matto
« on: January 05, 2012, 07:23:26 PM »

Carl,  I'm going to rebuild a Carter YF this winter and I hope to be able to use your method to set the metering rod. The two carbs seem very similar to one another although the top of the rod seems more accsessable on the WO. I'll have a better idea when it's apart. Theres alot of good info on the YF over on the 3B site.
Matt
Posted by: Carls_jeep
« on: January 05, 2012, 09:53:40 AM »

Your welcome Bob. The reason I did that is to see if all the methods really worked and just what differences there are in the parts and the setting tools. Manufacturing tolerances are sometimes big and in the case of the metering rod and jet they can vary a lot, so much so that if you do a rebuild and don't reset the metering it can be way off.

If I had a CNC lathe I would make and sell the home made tool but alas I don't have a CNC lathe.
Posted by: Bob W
« on: January 05, 2012, 08:06:00 AM »

I have copied this information to my website here......

http://www.cj3a.info/tech/meter.html

Thanks Carl for taking the time to write this up.
Posted by: macrisel
« on: December 27, 2011, 10:41:08 AM »

Wow Carl........that is some great info!  I hearby give to you a Six Sigma black belt.

Use it only for the power of good... 8-)
Posted by: Carls_jeep
« on: December 27, 2011, 09:48:33 AM »

Sorry about them not being sharp photo's. I tried several shots for each, bench and Jeep, and because of the distance and lighting those are the sharpest I could get with a full view of everything. It's the concept that's important anyway and anyone doing it has to have the ability to think out the process and understand what they are doing.
Posted by: Bob W
« on: December 26, 2011, 10:37:08 PM »

Thanks Carl, I am working on putting this info together in a web page.
Posted by: Carls_jeep
« on: December 26, 2011, 09:08:43 PM »

In the photo below I have the dial indicator set up on the exh. man. and against the head in a spot where it is solid and doesn't move. You have to back the throttle screw off 6 full turns to be sure the throttle plate is closed. The plunger is set on the metering rod with the plunger as straight in line with the metering rod as I can get it. Then I set the dial on "0" to start to set the rod. Then you loosen the pin nut just so it will slip, push the pin down gently on the metering rod loop bottom and then with tweezers lift the rod until the dial indicator shows .040" and lock the pin nut. Check the travel by moving the metering rod up and down between the jet and the pin and it should still be .040". If not reset it until it is. It is important that the plunger tip touch only the metering rod and not the washer on the pin.



Setting the metering rod on the bench is a little easier but you still use the same method as above while the carb is clamped to a drill press table. See photo below. The tip I used in the dial indicator has a flat face but didn't screw all the way in the plunger but it is bottomed out in the threads. You can use the rounded tip that comes with the dial indicator but you have to be very careful to get it centered on the metering rod and not touching the pin washer to get a good reading. Most people would find it easier using the Carter tool or a home made tool.

Posted by: Carls_jeep
« on: December 24, 2011, 08:09:45 AM »

I'll do some photo's next week.
Posted by: Bob W
« on: December 24, 2011, 06:52:33 AM »

I think the dial indicator method is cool. That is within reach of most people. Carl, do you have any photos of that method?
Posted by: Carls_jeep
« on: December 23, 2011, 11:42:52 PM »

That's fine with me Bob. The reason I measured every thing and recorded all the comparisons is so we can understand what is going on with setting the metering rod. It looks like the home made tool will do the same job as a factory tool or you could use a dial indicator if your careful and understand what your doing. This lets everyone make up their mind what method they want to use to set the metering rod.
Posted by: Bob W
« on: December 23, 2011, 10:23:24 PM »

Quote
Maybe Bob would put that out on his web page onthe tech link area so it doesnt get lost in a post.

I can do that if it is okay with Carl. It will take a few days to put it up.
Posted by: calvinhunt
« on: December 23, 2011, 02:08:10 PM »

Carl,
  I agree with Gunslinger, that's a lot of work.  But I think many of us will benefit from your efforts.  I've printed of the info and saved it in my Carter Overhaul Manual.  Thanks.  
Posted by: Carls_jeep
« on: December 23, 2011, 01:28:32 PM »

Well, I guess it was but I wanted to settle a question in my mind that has been bothering me since I rebuilt my carb. I am glad I did this because I think I have solved my cold start issue with the correct adjustment of the metering rod.
Posted by: Gunslinger
« on: December 23, 2011, 07:50:05 AM »

Wow, Carl, thats a lot of work, thankyou!  Maybe Bob would put that out on his web page onthe tech link area so it doesnt get lost in a post.