Default 73 cj5 transfer case issue 

Old 08-29-2012, 09:50 AM   #1
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Hey guys. New to the site and the jeep world. Bought a pretty solid 73 cj5. Had the 232 fresh rebuilt and all new bolt ons. New clutch, ect. During the first test drive yesterday, i noticed when in reverse with the wheels turned hard, once i push in the clutch, the jeep abruptly stops as if the brakes are applied. Once that happens, i cannot get the trans or transfer case to shift in or out of any gears. Found the small mount on the far left of the transfer case was worn, so i added some washer and made it solid. I assumed the transfer case may have been twisting. I went out for a drive this morning and got up to about 30 and all was well until i pulled into a parking lot. It seems as if the front in starts to lock up. I can hear a loud popping and it jerks violently. I limped it to a parking spot, but before i could get there, something locked the front wheels solid. Once that happens, I cannot get the trans or transfer to shift. If I get out and roll the wheels by hand, it frees up I had to do this moving 3 mph for about a mile until i was able to get it home. does anyone have any ideas as to what might be wrong. It basicly seems as if the same thing was happening with the transfer case mount loose like it was or tight how it is now. any advise will be greatly appreciated. Im ready to get my CJ on the road.

 

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Default Re: 73 cj5 transfer case issue 

Old 08-29-2012, 10:22 AM   #2
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While preforming this test drive, by any chance, were you driving on the asphalt in four wheel drive?

 

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Default Re: 73 cj5 transfer case issue 

Old 08-29-2012, 11:03 AM   #3
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Quote:
Originally Posted by Torxhead View Post
While preforming this test drive, by any chance, were you driving on the asphalt in four wheel drive?
I tried the transfer case in all gears to see if the problem changed. I was on the asphalt. The problem was still the same. It does have warn lock o matic lock outs. I have them rotated to " Free". I tried locking one just to see if by chance it would change the outcome, but doesnt seem to make any difference. I'm pretty sure its the right front wheel.

P.S. Sorry for making my first post for tech help. Just not sure what the issue is. Thank you.

 

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Default Re: 73 cj5 transfer case issue 

Old 08-29-2012, 02:35 PM   #4
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So, you are saying that the right front brake is sticking? That can be caused by an internal collapse on the brake hose not allowing the fluid to release.

 

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Default Re: 73 cj5 transfer case issue 

Old 08-29-2012, 02:59 PM   #5
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Quote:
Originally Posted by Torxhead View Post
So, you are saying that the right front brake is sticking? That can be caused by an internal collapse on the brake hose not allowing the fluid to release.

Not a brake issue. Definitely drive train. I pulled the drain plug on transfer case and there is traces of metal shavings. Maybe a bearing goin bad. My good deal seems to not be such a good deal.

 

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Default Re: 73 cj5 transfer case issue 

Old 08-29-2012, 03:02 PM   #6
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it could also be the U-joint on the right side binding up due to lack of lube or just wear. I'd jack up the front end and try turning the tire while someone else is turning the steering wheel.
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Default Re: 73 cj5 transfer case issue 

Old 08-29-2012, 03:52 PM   #7
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Quote:
Originally Posted by mylittlecj5 View Post
it could also be the U-joint on the right side binding up due to lack of lube or just wear. I'd jack up the front end and try turning the tire while someone else is turning the steering wheel.
It has new U joints, but I will jack up the front end and see if it binds up. Thanks for all the ideas guys. Keep em comin.

Is it possible that the transfer case is still ok even with shavings on the plug?

Im startin to fell I bought a lemon.

 

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Default Re: 73 cj5 transfer case issue 

Old 08-29-2012, 04:22 PM   #8
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When checking the u-joints it's possable for them to bind at full turn if the steering stops are not set right. ie can turn to far.
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Default Re: 73 cj5 transfer case issue 

Old 08-29-2012, 04:30 PM   #9
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Quote:
Originally Posted by SickCj View Post
It does have warn lock o matic lock outs. I have them rotated to " Free".
If the lockouts are "free" the front wheels should have nothing to do with the trans or t/c.
With the front of the jeep jacked up and in gear see if the front tires will spin freely.
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Default Re: 73 cj5 transfer case issue 

Old 08-29-2012, 06:14 PM   #10
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Hi

First - I don't think you have a "lemon". All jeeps with a few years of age come with a small list of fix-its.

One common issue with 4 wheel drive is that the geartrain can get locked up if there is no give between the front and rear axles. In particular, asphalt does not allow the tires to give and will apply a lot of pressure to the drivetrain. I would suggest that you only lock the hubs or run in 4WD on gravel or dirt trails/roads. Or snow. Something that has some give to it. The Dana 20 transfer case is gear driven and does not provide an differential action to allow slip.

It sounds like you are experience some degree of drivetrain lock-up. However, the symptoms as you describe it suggest you may have a broken part somewhere making this problem.

1) Try to isolate the trouble. Is it definitely the front axle? Does this happen in 2WD also? Is it only when you turn the wheel sharply, which causes the front differential to bind ?

2) Pull off the selector hubs. Are they disengaging when in free mode? I had an old pair of lock-o-matics. In free mode, they actually worked in "auto". If I engaged the front driveline with 4WD, they would apply torque to the wheel. You may have a hub that is sticking. Or maybe someone has installed a locker up front and with a stuck hub, you can't run at all. Just guessing...

3) If necessary, pull the front driveline free. This will completely isolate the front end and may help determine what is binding. If it still binds, obviously this points to the transfer case or rear axle.

Once you isolate the trouble, we can probably help you find a solution.

Good Luck - Waiting for more info. John

 

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