Hydraulic clutch conversion ??? - JeepForum.com
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post #1 of 19 Old 12-27-2012, 04:31 PM Thread Starter
JusJeeps
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Hydraulic clutch conversion ???

I need some info on hydraulic clutch conversion. I have a 85 cj7. Chevy 350 and a t5 The mechanical linkage is very warn out and some of it bent. I have a lightly used master and slave from a 96 Cherokee from when I scrapped it. Anyone have any info on hydraulic conversions? What if the slave cylinder receives resistance from the clutch throw out fork after its traveled full distance but pedal still has some push?

Any info would be greatly appreciated?

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post #2 of 19 Old 12-27-2012, 04:55 PM
82JeepCJ7
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I used the stock replacement parts for a CJ with a 6cyl. Bolted up perfectly and works even better.








Beat it to fit, paint it to match!

Wheel, Wrench, Repeat.
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post #3 of 19 Old 12-27-2012, 05:41 PM
CSP
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There are several writeups on the internet on CJ hydro clutch conversions. I'm not going to search for the links, but they are out there. You many have some differences since you probably have a conversion bellhousing.
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post #4 of 19 Old 12-27-2012, 05:47 PM
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The other part was a heat shield under the slave as the exhaust passed quite close by.

Thing to note is that the push rod between slave and fork needs to be extendable or you may find yourself welding up a new rod, it depends on how it mounts on to your sbc.

When you get the clutch pedal assembly apart you may find that you need to drill a new hole in the clutch pedal arm to bolt the end of the master cylinder rod to.

Overall an easy change.
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post #5 of 19 Old 12-27-2012, 07:46 PM Thread Starter
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82jeepcj7 are you running factory bell housing?


My other concern is the length of the piston. What happens if its to far? Will constantly forcing hydraulic pressure threw the system mess up the diaphragms or seals inside the pistons. My thoughts are to fabricate an adjustable push rod to fix this problem and also a custom mount for slave to bell housing.

Just trying to get as much info as possible. Only worry I have is like most people, she's a daily driver.
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post #6 of 19 Old 12-27-2012, 08:12 PM
82JeepCJ7
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I am running a factory bellhousing. The hydraulic clutch is self adjusting, so you don't have to build any adjustment into the push rod.

Beat it to fit, paint it to match!

Wheel, Wrench, Repeat.
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post #7 of 19 Old 12-28-2012, 07:28 AM
TxJeeper20
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I had the conversion done while I was deployed and its very stiff to push but fully releases the clutch as it should . Its just way more difficult that my mechanical linkage I used the novak kit

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post #8 of 19 Old 12-28-2012, 08:14 AM Thread Starter
JusJeeps
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My linkage would need to be totally replaced. Every component is worn or bent. Brackets are barley held onto body of jeep. It's a total mess. I have the hydraulics from a newer Cherokee because I saved the ax15 in hopes to drop that behind my 350. I figure its worth a try. Won't cost me any more then a couple of grade 8 bolts. And brake fluid
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post #9 of 19 Old 12-28-2012, 08:24 AM
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Quote:
Originally Posted by JusJeeps View Post
My linkage would need to be totally replaced. Every component is worn or bent. Brackets are barley held onto body of jeep. It's a total mess. I have the hydraulics from a newer Cherokee because I saved the ax15 in hopes to drop that behind my 350. I figure its worth a try. Won't cost me any more then a couple of grade 8 bolts. And brake fluid
I used the AX-15 behind my 350 I love it one of the few overdrives that will squeeze into a 5

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1989 Porsche 928 S4
2003 Honda VTX 1300R
2005 Infiniti G35
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post #10 of 19 Old 12-28-2012, 11:21 AM Thread Starter
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Txjeeper did u have to get custom high angle drive shaft?? How much was adapter plates?
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post #11 of 19 Old 12-28-2012, 11:25 AM
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Quote:
Originally Posted by TxJeeper20 View Post
I had the conversion done while I was deployed and its very stiff to push but fully releases the clutch as it should . Its just way more difficult that my mechanical linkage I used the novak kit
Sounds like there is an issue with where the master cylinder hooks to the clutch pedal. Look under the dash and see where it is connected on the pedal. You may need to move that point down to give you more leverage.

Beat it to fit, paint it to match!

Wheel, Wrench, Repeat.
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post #12 of 19 Old 12-28-2012, 01:38 PM
TxJeeper20
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Quote:
Originally Posted by 82JeepCJ7 View Post
Sounds like there is an issue with where the master cylinder hooks to the clutch pedal. Look under the dash and see where it is connected on the pedal. You may need to move that point down to give you more leverage.
The clutch desenguages (sp) as it should just is stiff.


I dont have a lift so all I needed was a longer front shaft and a shorter rear shaft. The adaptors were from Novak I dont remeber what I spent Im thinkin around 250-300 but not over . www.novak-adapt.com

Victory Loves Preparation
1982 CJ-5 350TBI/AX-15
1989 Porsche 928 S4
2003 Honda VTX 1300R
2005 Infiniti G35
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post #13 of 19 Old 12-28-2012, 02:07 PM
82JeepCJ7
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I've never been a fan of their "one size fits all" kit.

If the master cylinder bore is too small, it will require more pressure to accomplish the task. If the MC bore is bigger, it requires less pressure to push the slave cylinder. What is the bore of your MC and SC?

Beat it to fit, paint it to match!

Wheel, Wrench, Repeat.
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post #14 of 19 Old 12-28-2012, 02:43 PM Thread Starter
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Tx did you use the same tranny input shaft? Same machined splines?
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post #15 of 19 Old 12-28-2012, 03:10 PM
TxJeeper20
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Quote:
Originally Posted by 82JeepCJ7 View Post
I've never been a fan of their "one size fits all" kit.

If the master cylinder bore is too small, it will require more pressure to accomplish the task. If the MC bore is bigger, it requires less pressure to push the slave cylinder. What is the bore of your MC and SC?
I bought there larger throw kit . Im thinking the seals are gone/ failing, it seeps around the boot on the cylinder, the first one dripped. dont thnk its put on akward.

Quote:
Originally Posted by JusJeeps View Post
Tx did you use the same tranny input shaft? Same machined splines?
I useda gm350 bolted it up to a reman AX15 with hydro clutch, and bolted to my D300 no spline replacements just needed adaptors for the bolt patterns

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1982 CJ-5 350TBI/AX-15
1989 Porsche 928 S4
2003 Honda VTX 1300R
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