NP231 running hot

[xjaugie]

So what will cause a np231 to get hot sometimes and not others?

I installed a Novak shift linkage on Thursday, and ran up to Garrett county yesterday to run some trails and check out a new hunting property when the shifter got hot on the run up RT 68, then cooled down while on the trails, and most of the drive home (150 miles) then it got hot again?

Checked fluid in transmission when it was hot, fluid not hot. Checked ATF fluid in transfercase this morning and good level and color.

Could something be hanging up in the transfer case?

[MDMike]

Here's my thoughts Andy, the stock t-case lever was mounted to the body of the jeep and isolated with poly pivot bushings, and it didn't stick out quite as far from the console. You probably couldn't feel any heat coming off of it at all. The new shifter mounts directly to the transmission/transfer case, is all metal, and sticks a good bit further up out of the console. The new shifter may be acting as a heat sink. I would figure the shifter will get as hot as the transmission/transfer case do.



























Either that, or some jerk sold you a junk transfer case. :D

MIke

[Appalachian Offroad]

Transfer cases get hot at highway speeds. The cat is right next to it. I dont think anything is wrong with it.

[xjaugie]

Thats what I was thinking, that the heat was coming from the case through the shifter, but then it ran cold for about 2 hours at highway speeds running up and down the mountains on the way home, before get hot again around frederick.

[CJTHING]

Here's my thoughts Andy,

some jerk sold you a junk transfer case. :D

MIke

Fixed :D

[xjaugie]

Would you believe a hole in the cat blowing right on the case and shifter?

Yep....Anyone got a cat?

[mg2000xj]

Was the novak shifter a simple install? Does it shift that much better?

[xjaugie]

The Shifter linkage is an easy install, but retaping the stripped out crossmember bolt holes was a real pain.

It wasn't bad, but seemed to take a long time. longer than it should have.

[hoki06]

Was the novak shifter a simple install? Does it shift that much better?

I've got the Novak shifter on my YJ. It was a fairly easy install, the long part is adjusting it to get it to shift the way you want it. Not hard, just can get tedious.

[jpowers]

The Novak shifter is a pretty easy install. They keep getting better as they refine it. I've done 3 different revisions of it on an install and the last was significantly better (and they sent me the parts for my original when they changed it :) ).

And yes, its shifts that good :). Very positive engagement for a NP231. Sorta makes it feel like a 'real' transfer case

That shifter will get significantly warmer than the factory shifter.
1.) its all metal its conducts heat much better than the factory one.
2.) its attached right to the tail of the transmission. The transmission gets warm, its get warm.

Unless its to the point where you can't actually grab it for fear of burning yourself it should be just fine.

Jason

[xjaugie]

The Novak shifter is a pretty easy install. They keep getting better as they refine it. I've done 3 different revisions of it on an install and the last was significantly better (and they sent me the parts for my original when they changed it :) ).

And yes, its shifts that good :). Very positive engagement for a NP231. Sorta makes it feel like a 'real' transfer case

That shifter will get significantly warmer than the factory shifter.
1.) its all metal its conducts heat much better than the factory one.
2.) its attached right to the tail of the transmission. The transmission gets warm, its get warm.

Unless its to the point where you can't actually grab it for fear of burning yourself it should be just fine.

Jason


And yes the sifter gets so hot you cann't touch it, but it seems the problem comes from the disappearance of the XJ floor in the form of rust. :dan1:

Thinking of spending much of the weekend empting the interior and cutting the bad spots out and having salvaged floor sections welded in.

Oh yea and a new exhust that is not clogged should help too.:doh: