My 88 yj - JeepForum.com
 
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post #1 of 11 Old 07-15-2013, 09:37 AM Thread Starter
dlebo
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1988 YJ Wrangler 
 
Join Date: Jul 2013
Location: kamloops
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My 88 yj

Soo i just recently bought an 88 yj with a 4.2l i6. I have noticed a pretty bad leak coming from the rear main seal area. I have not had time to pull it apart yet but that is what i am thinking it is. the engine has 330k kms (i am in canada) but it was also sitting for about six months. Now I know i have the know how to fix this problem but I have been reading on multiple online spots about how to do it. The only question i really have is whether I have to loosen all main caps or just the rear main cap?? and if it is just the rear main cap do I still retorque all of them when I am done or seeing as it would only be the outside do I only have to retorque that one cap?

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post #2 of 11 Old 07-15-2013, 10:10 AM
superj
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i would just worry about what you touch

I don't feel like working on anything, at this time.
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post #3 of 11 Old 07-15-2013, 10:18 AM
pasinbuy
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Another tip is to drain your oil the day before you do the job. Otherwise you will have oil dripping on you as you work.

I released a couple of the mains. It will not hurt to check the torque of the others.
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post #4 of 11 Old 07-15-2013, 10:26 AM
SeanB95YJ
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before you tear into anything you might not need to, are you SURE it's the RMS?

if the 4.2 is anything like the 2.5 and 4.0, often times the offender is actually the rear portion of the valve cover, dripping down the back and resembling a RMS leak.

Sean B. - Schenectady, NY - 95 YJ, 350/700r4/NP241, JB Shorty SYE, 8.8 rear, 2" BDS, 1" homebrew shackles, Daystar 1" BL, TJ flares, 35x12.50 General Grabber AT2 on 15x10 Bart D-Truckers, Polyshield polycarbonate windshield, HD over/under crossover steering
swap/build thread: http://www.jeepforum.com/forum/f22/a...hread-1542284/
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post #5 of 11 Old 07-16-2013, 12:36 PM
CJ51973
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Mine was leaking from the one of the oil sending units above the starter. Looked like a RMS at first. It's about the only thing that went right with my junk = ).

Anything is possible if you don't know what you are talking about.
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post #6 of 11 Old 07-16-2013, 01:47 PM
jbrown73
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Quote:
Originally Posted by SeanB95YJ View Post
before you tear into anything you might not need to, are you SURE it's the RMS?

if the 4.2 is anything like the 2.5 and 4.0, often times the offender is actually the rear portion of the valve cover, dripping down the back and resembling a RMS leak.
x2.
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post #7 of 11 Old 07-16-2013, 01:58 PM
TimYJ
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Would anyone know if and what year of Cherokee model tie rods would fit my 89 yj?
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post #8 of 11 Old 07-16-2013, 02:07 PM
SeanB95YJ
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Quote:
Originally Posted by TimYJ View Post
Would anyone know if and what year of Cherokee model tie rods would fit my 89 yj?
welcome to the boards... first, please fill out your profile so we all know just what you're working with.

next, when asking a question, it's best to start your own thread on it for a couple reasons:
- not to "thread-jack" someone else's thread
- asking your question within someone else's thread, your question is likely to get lost as nobody will know the question is in here (it won't show up on the main forum list)

as for your actual question, sorry, I don't know

Sean B. - Schenectady, NY - 95 YJ, 350/700r4/NP241, JB Shorty SYE, 8.8 rear, 2" BDS, 1" homebrew shackles, Daystar 1" BL, TJ flares, 35x12.50 General Grabber AT2 on 15x10 Bart D-Truckers, Polyshield polycarbonate windshield, HD over/under crossover steering
swap/build thread: http://www.jeepforum.com/forum/f22/a...hread-1542284/
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post #9 of 11 Old 07-16-2013, 03:30 PM
Berniebikes
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x3 on checking if your valve cover is leaking. I'd also see about your transmission input seal as well. Once I dealt with those two, no more oil around the rear main seal area.
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post #10 of 11 Old 07-16-2013, 04:58 PM
befumo
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Quote:
Originally Posted by jbrown73 View Post
x2.
x3?

I think i have an RMS leaking as well. I did notice the valve cover was leaking pretty bad.. all the bolts to the rear of the cover were loose.

I bought a dye and added it in the oil, would be nice i guess if it wasnt that RMS.

'89 YJ Wrangler - Sold
'95 ZJ Orvis Edition
'89 YJ Islander
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post #11 of 11 Old 07-23-2013, 01:45 PM Thread Starter
dlebo
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1988 YJ Wrangler 
 
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Location: kamloops
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So it definitely was the rms. Shortly after i posted this my jeep started puking oil after a small back road drive. Got it fixed and now onto the next issues... Worn out suspension and a problem witb some pinging and lack of power... But have good compression... Just keep moving forward and by the time i get it all fixed it should be time to do it all over again. ;-)
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