Default Linkage help 

Old 05-23-2018, 08:54 AM   #1
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Hey folks, the pivot body bracket sheared off its own bolts (we have some seriously rough roads round here), leaving the pivot head and bellcrank disconnected. Question, if I replace the linkage, do I need to mess with the transmission? The linkage system and transmission seem modular (connecting at the throwout lever), making it feel like I should be able to order a linkage kit and call it day.

Here's a diagram for more help: https://www.morris4x4center.com/jeep...age-parts.html

Also, any recommendations on kits? I see Crown and Quadratec have quite a few, but they might not come with installation notes. That seems suspiciously too easy. Thoughts?

FWIW: I have a haynes service manual, but can't find anything on the issue.

 

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Default Re: Linkage help 

Old 05-23-2018, 09:37 AM   #2
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The linkage is pretty simple. No need to mess with the transmission. You will need to adjust linkage afterwards to get the clutch adjustment correct. (this is easily done with the threaded rod portion of the linkage.

 

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Default Re: Linkage help 

Old 05-23-2018, 09:45 AM   #3
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I went with this setup in 'Black Betty' and once I got the firewall clearances set up it works great for the last five years.

https://www.quadratec.com/products/5...yABEgIXOPD_BwE
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Default Re: Linkage help 

Old 05-23-2018, 10:03 AM   #4
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Quote:
Originally Posted by Turbogus View Post
I went with this setup in 'Black Betty' and once I got the firewall clearances set up it works great for the last five years.

https://www.quadratec.com/products/5...yABEgIXOPD_BwE


Go with this set up.
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Default Re: Linkage help 

Old 05-23-2018, 08:05 PM   #5
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I'm probably ignorant, but this looks nothing like my original setup. I'm used to seeing the bellcrank, pivot, etc. leading from the clutch pedal to the transmission via a bellcrank that runs perpendicular to the frame. How does this even connect to the transmission? Visually I'm struggling.

Also, what work was needed to be done with the firewall clearance you referenced?

What are the functional differences and benefits of the black betty vs. the factory?

Any tutorials or videos on installation!?

Thanks guys, as always!

 

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Default Re: Linkage help 

Old 05-24-2018, 08:53 AM   #6
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Quote:
Originally Posted by Jslampe View Post
I'm probably ignorant, but this looks nothing like my original setup. I'm used to seeing the bellcrank, pivot, etc. leading from the clutch pedal to the transmission via a bellcrank that runs perpendicular to the frame. How does this even connect to the transmission? Visually I'm struggling.

Also, what work was needed to be done with the firewall clearance you referenced?

What are the functional differences and benefits of the black betty vs. the factory?

Any tutorials or videos on installation!?

Thanks guys, as always!
I'm still running the factory clutch linkage, but it looks like heim joint setup still uses the stock bellcrank but connects it to the clutch pedal and shift fork with heim joints instead of pins and the crappy ball joint thing.

Black Betty is just the name of Turbogus's Jeep, but I'd also like to know the advantages to the heim joint setup

 

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Default Re: Linkage help 

Old 05-24-2018, 01:00 PM   #7
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I know that there are those who disagree, but a hydraulic conversion is always an option. I used to have my bell crank disconnect during hard articulation. (a common problem with CJ's I have been told) Since I switched to hydraulic, not a single clutch linkage problem.
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Default Re: Linkage help 

Old 05-24-2018, 07:11 PM   #8
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Quote:
Originally Posted by Jslampe View Post
I'm probably ignorant, but this looks nothing like my original setup. I'm used to seeing the bellcrank, pivot, etc. leading from the clutch pedal to the transmission via a bellcrank that runs perpendicular to the frame. How does this even connect to the transmission? Visually I'm struggling.

Also, what work was needed to be done with the firewall clearance you referenced?

What are the functional differences and benefits of the black betty vs. the factory?

Any tutorials or videos on installation!?

Thanks guys, as always!
You really need to buy a REAL, FSM for your Jeep. Not the Haynes or Chilton.
The OEM was thanks to the AMC 'bean-counters'. The heim joint deal is what AMC should have used.
I've been run'n my home made heim joint linkage for over 25 yrs, with no issues.

LG
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Default Re: Linkage help 

Old 05-24-2018, 08:04 PM   #9
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Bottom-line: I need to replace the whole linkage system. The whole thing is pretty rough and it's only $60. Will upgrade to the heim hitch in the next year or so. Thanks everyone for the input!

.... Now, if only I get the damn bolts out of the firewall... 30+ years have pretty much welded them in and I have room to create leverage to bang'em out or use an extractor. Used penetrating spray and blow torch, and still nothing.

 

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Default Re: Linkage help 

Old 05-25-2018, 09:40 AM   #10
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That kit comes with complete instructions and once it's out of the box it becomes apparent how it goes together. The bars are heavier gauge than O.E. and on 'Black Betty' it was nesessary to hog out the hole through the firewall with a rasp to allow for clearance. Not too tough really
The results were a less vague feeling from the linkage and with those heavier members, gave me confidence that these are long lasting and for the last five years, so far so good.

I've had great results with PBlaster penetrating oil to free siezed nutz and bolts once applied give it time to work, then have at it.

X2 for the FSM, the three volume set for my '78 'Black Betty' was around $50 on EBay. That was the first jeep related purchase I made when I got her.
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The parts shop that stocks part for Skylab II will not have parts for our year/model of Jeep.

Last edited by Turbogus; 05-25-2018 at 10:30 AM..

 

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