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Old 07-17-2012, 06:18 PM
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Possible New Jeep Owner Needing Help

I am new to the "Jeep" world but excited and jazzed to step in with both feet.

I am in the process of purchasing a '92 YJ for $4k and checked out the recommended items that this forum had (rust, frame, frame, frame, rust, etc.). Which all look good if not in some cases great. The most current work done includes new BDS leaf springs w/ 2" lift, new M.O.R.E. boomerang shackles w/ 0.5" lift, TC-drop, new shocks + steering dampener, new tires, new wheels, new muffler. He admitted that the U-joints are needing to be replaced and pointed out any defects he felt the Jeep had (mainly superficial).

Not owning a Jeep before -- I need to know if the following three items are what to expect for a YJ that age:

1. There is a small/slow leak at the back of the block (Straight 6). The engine is the original and has 183k miles on it. From what I read that is common?
2. Between 45 and 65 MPH I have put the gas peddle to the floor to gain any speed which tops out at 65. Going any faster than 45 up a gradual incline does not happen. Not that this is huge... I just need to know if it is what to expect. Possible gear ratio? Lift and Tire size?
3. Between 50 and 55 MPH I get a shake that does almost, but not fully, go away outside that speed range. It is not violent but noticeable. With the new lift and tires is it possible that it is just an alignment issue or do I need to look into other scenarios?

Thanks in advance for any replies and take care! It will help me out greatly.

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Old 07-17-2012, 08:56 PM   #2
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vibrations could be from the ujoints and/or driveline angles. What size tires does it have? my 93 with the 6 cylinder 5 speed will do 90+mph easy on stock tires lol. if it has the 5 speed and hasn't been regeared, the ratio will be 3.07 which sucks for anything but stock size tires.

Can you see where the leak is coming from? valve cover gaskets are a common problem. rear main seal? internal clutch throwout leak?

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Old 07-17-2012, 10:46 PM
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Thanks for the reply. I am not too sure what size tires he has on there (30+ -- I want to say 33????). I'll be meeting with him tomorrow to do a final run through (with the intent to purchase it). I'll poke through this forum to figure out how to check the gear size along with find out if he knows (I think he will because he really loves his jeep... just had a new baby and can't stick with it... for now). Does this forum have threads related to matching gear ratio with lift/tires/etc? I really appreciate the feedback.

The leak is towards the back of the engine by the firewall. That would be the near rear main seal... right? We will be going over those items with a fine tooth comb tomorrow.

I'll take your questions as learning points and figure out the details. Thanks much!! Hopefully in a couple of days I'll be a new Jeep owner. I'm trying to keep the excitement down until it happens.

Khayts
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Old 07-17-2012, 11:08 PM   #4
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Going by the lift the jeep has now, I'd assume the tires wouldn't be more than 31s. A good gear ratio for those would be 3.73 to 4.10. 33's do well with 4.10 to 4.56. Im assuming it's a 5 speed.


If you're lucky, the leak is just from the valve cover gasket. Both jeeps I've owned needed new ones. Mine leaked all the way down the back of the motor and it seemed as though it was from the motor/trans. Pretty easy and cheap to replace.
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Old 07-17-2012, 11:10 PM   #5
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Check out the Sticky's and FAQ sections for lots of info.

Here's a gear ratio chart for ya: Jeep Wrangler Gear Ratio Guide
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Old 07-18-2012, 06:27 AM
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Thank you again! You have been a lot of help. Once I find out the details I'll get them posted. I've got some reading to do I am learning what I need to learn.
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Old 07-18-2012, 08:48 AM
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Received a copy of an inspection he had done 2 years ago. The following two items were identified (he has done nothing about them):

1. Drivetrain UJoints
a. Loose UJoint #2 Front Shaft
b. UJoint at steering sector is bad
2. "Possible" rear main leak - says something about valve cover on the same line (can't read the hand writing - looks like valve cover gaslut ...

From what I understand he has put approx 12k miles on it since then. Since those items had not been fixed for that time (I am sure that "how" he used the rig comes into play), and he placed mileage on it, am I looking at inheriting a BIG problem or is this manageable?

I am trying to place the right value on this. He is asking $4k and I WILL be looking at paying an additional to address those issues. The remainder of the YJ is clean and he has put quite a bit into the suspension, tires, (rides nice), all small mechanical items work,etc.. I am not a mechanic but am willing to do what I can (I have a steep learning curve). I get the sense that is just part of Jeep ownership.

Have you ever decided to take a step into something that is foggy (because the end result is worth it) but want to make sure you do not fall of a cliff? Doesn't keep you from still walking forward but man it helps if someone says watch out!! I appreciate the help
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Old 07-18-2012, 10:15 PM
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Thank you for your help. I am the new and proud owner of a '92 Jeep Wrangler (YJ). Was able to have a friend of a friend that has owned a lot of Jeeps come out with me. The fun begins. Thanks again... you helped a newb out!

Khayts
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Old 07-18-2012, 10:38 PM   #9
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those seem like minor issues to me. i know i traded mine for a perfectly good 5.5" lifted cherokee that i used as a family hauler across texas. this wrangler had some issues that were minor to me. i knew in the end, the wrangler was worth more but since the guy wasn;t a mechanic, he couldn;t fix the problems and just wanted something already built and fuel injected with lockable non removable doors so we swapped. i limped the wrangler home on the two hour drive and started messing with it. now its a great jeep and i am very very happy with it.

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