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Unread 07-14-2013, 08:14 PM   #361
NelsonATC
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I think I am running 39 right now. That said, I am running a 4.6 stroker w/ a ported head and 24lb injectors. I've been experimenting with various pressures and have been as high as 45psi without any pump issue. I THINK stock OBD1 is around 39psi

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Unread 07-14-2013, 08:22 PM   #362
Skerr
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Something like that. I know when I purged the relief valve it shot across the engine bay! That was AFTER I discovered I had connected the pressure to the return and vice-versa!!! Couldn't understand why I wasn't getting fuel! Thought my fuel rail was bad!
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"Contemplate the mangled bodies of your countrymen, and then say 'what should be the reward of such sacrifices?' ... If ye love wealth better than liberty, the tranquility of servitude than the animated contest of freedom, go from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains sit lightly upon you, and may posterity forget that you were our countrymen!" —Samuel Adams

Clay's Build Thread
http://www.jeepforum.com/forum/f8/cl...hread-1061897/
Scott's Build Thread
http://www.jeepforum.com/forum/f8/sc...5-cj7-1147913/
Fallon (and Dad) Build Thread
http://www.jeepforum.com/forum/f11/f...-okee-1445206/
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Unread 08-02-2013, 01:38 PM   #363
Gigemags05
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I completed this swap using the hesco cps relocation kit. Now, I think my cps is going out. Does anyone know if I can use an after market cps from the parts store or do I have to replace it with a hesco cps?
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Unread 08-02-2013, 03:01 PM   #364
SLO_Ken
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Quote:
Originally Posted by Gigemags05 View Post
I completed this swap using the hesco cps relocation kit. Now, I think my cps is going out. Does anyone know if I can use an after market cps from the parts store or do I have to replace it with a hesco cps?
Does your sensor look like this?


Or like this?


Both are for a '97 - '02 Wrangler. Available from RockAuto.com, or your favorite local parts store...
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Unread 08-02-2013, 03:13 PM   #365
Gigemags05
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My sensor looks like this:



The sensor itself looks like the OEM one, but the mounting bracket portion is different. I think it might still work, though.

I was more concerned with wether or not they perform the same. Do they have the same voltage, etc.
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Unread 08-02-2013, 03:24 PM   #366
SLO_Ken
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That looks an awful lot like the second picture in my post above... except the connector may be different.

here's another image from a different angle


If you can handle cutting and splicing the old connector onto a new sensor (if needed), I'd say go with an aftermarket sensor. They will perform the same.
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Unread 08-02-2013, 03:31 PM   #367
SLO_Ken
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or, even better, get one from a '94... The connector looks like a match
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Unread 08-02-2013, 03:41 PM   #368
Gigemags05
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Perfect. Thank you for the info Ken!
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Unread 08-02-2013, 10:42 PM   #369
billybooster2
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The hesco has an oval mounting hole. Su358 is the wells part number. The circle doesnt fit/ reach i dont think
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Unread 08-03-2013, 10:20 AM   #370
SLO_Ken
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Quote:
Originally Posted by billybooster2 View Post
The hesco has an oval mounting hole. Su358 is the wells part number. The circle doesnt fit/ reach i dont think
yeah, that's the one!!


Another comment. I've read on the XJ and TJ forums that sometimes the aftermarket CPS sensors don't want to work properly. When they replace them with an OEM sensor from the dealer, the work perfectly.
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Unread 08-03-2013, 06:33 PM   #371
billybooster2
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The wells is a good part. But ive heard same about cheapy stuff...i test my spare then put it in my trail kit.
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Unread 08-06-2013, 03:30 PM   #372
Skerr
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Has anyone had problems with the clutch not working after the swap? I either slept through that part of this swap, or I skipped over it, but I never saw where anyone had this problem. My clutch fork is hitting the back edge of the square window in the bellhousing. In other words, you can't depress the clutch pedal far enough to activate the clutch. The reason for this is the 4.0 flywheel is 400/1000s thinner than the 258 flywheel. This allows the throwout bearing to sit farther back. I have searched for a longer TO bearing, but to no avail. Novak makes one, but they are retooling, and they are at least two weeks away before running them. The other option is an adjustable pivot ball.

Where did I go wrong? What did you guys do to avoid this problem?

We are using an XJ 4.0, XJ manual flywheel, modified 258 bellhousing (for CPS), T18 tranny, diaphragm clutch set.
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"Contemplate the mangled bodies of your countrymen, and then say 'what should be the reward of such sacrifices?' ... If ye love wealth better than liberty, the tranquility of servitude than the animated contest of freedom, go from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains sit lightly upon you, and may posterity forget that you were our countrymen!" —Samuel Adams

Clay's Build Thread
http://www.jeepforum.com/forum/f8/cl...hread-1061897/
Scott's Build Thread
http://www.jeepforum.com/forum/f8/sc...5-cj7-1147913/
Fallon (and Dad) Build Thread
http://www.jeepforum.com/forum/f11/f...-okee-1445206/
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Unread 08-07-2013, 05:17 AM   #373
NelsonATC
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My initial thought is that something is missing. That small of a variation in the thickness of the flywheel should not translate to the clutch fork hitting, and meeting a longer throwout bearing.

Is it possible that you either forgot to put in the pivot ball behind the clutch fork, or it fell out? I usually use JB Weld, or epoxy, to hold them in place while I am positioning everything. It doesn't last forever, but by the time the epoxy lets go, the ball is firmly seated behind the clutch fork and won't go anywhere.

As far as getting a larger throw out bearing, take your current throwout, bring it to the parts store, and find something a little longer. They do make them for various applications.

I am running a T176 and a 4.0 flywheel, and had no issues.
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Unread 08-07-2013, 03:41 PM   #374
Skerr
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Quote:
Originally Posted by NelsonATC View Post
My initial thought is that something is missing. That small of a variation in the thickness of the flywheel should not translate to the clutch fork hitting, and meeting a longer throwout bearing.

Is it possible that you either forgot to put in the pivot ball behind the clutch fork, or it fell out? I usually use JB Weld, or epoxy, to hold them in place while I am positioning everything. It doesn't last forever, but by the time the epoxy lets go, the ball is firmly seated behind the clutch fork and won't go anywhere.

As far as getting a larger throw out bearing, take your current throwout, bring it to the parts store, and find something a little longer. They do make them for various applications.

I am running a T176 and a 4.0 flywheel, and had no issues.
Thanks, Nelson. The pivot ball is in place, and I have no explanation for this malady! There is more to this story, but I won't post it up here. It can be read in Clay's Build Thread... the last few pages. Going with an adjustable ball stud. I will keep ya'll posted.
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"Contemplate the mangled bodies of your countrymen, and then say 'what should be the reward of such sacrifices?' ... If ye love wealth better than liberty, the tranquility of servitude than the animated contest of freedom, go from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains sit lightly upon you, and may posterity forget that you were our countrymen!" —Samuel Adams

Clay's Build Thread
http://www.jeepforum.com/forum/f8/cl...hread-1061897/
Scott's Build Thread
http://www.jeepforum.com/forum/f8/sc...5-cj7-1147913/
Fallon (and Dad) Build Thread
http://www.jeepforum.com/forum/f11/f...-okee-1445206/
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Unread 08-07-2013, 05:12 PM   #375
Matt1981CJ7
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Quote:
Originally Posted by NelsonATC View Post
My initial thought is that something is missing. That small of a variation in the thickness of the flywheel should not translate to the clutch fork hitting, and meeting a longer throwout bearing.
Assuming Scott's measurements are accurate, the 4.0 flywheel is nearly 7/16" thinner then the 258's.

That's not a "small variation" in my book.

Matt
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