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post #1 of (permalink) Old 12-11-2000, 02:42 AM
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Mysterious Leak on a YJ

Hey~

i have a '91 YJ with a 4.0L and teh AX15 manual. It seemed to be dripping oil, but the oil level never drops. The drip trail seems like it is coming from the engine/tranny coupling (maybe something above that?).
The drip has been going on long enough that I'm sure it's not the engine. What exactly is on the inside of a manual? Gear oil? engine oil?
This is a scary problem and i would really like to catch it before something blows up on me.

Thanks

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'91 Wrangler; 6" Pro Comp Coil Conversion;
35" BigO XT's; 4.56 gears
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post #2 of (permalink) Old 12-11-2000, 06:45 AM
 
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Re: Mysterious Leak on a YJ

OOPs was thinking too far ahead when I wrote that.
The tranny has gear oil in it, the t-case uses ATF and you could be loosing brake fluid from the slave cylinder/throwout bearing unit. check the clutch master cylinder for loss of fluids.
GP'n

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post #3 of (permalink) Old 12-11-2000, 07:30 AM
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Re: Mysterious Leak on a YJ

check your valve cover gasket and oil filler cap gasket!these can leak and end up dripping down under near the rear main seal. [img]/wwwthreads_images/icons/smile.gif[/img]

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post #4 of (permalink) Old 12-11-2000, 10:47 AM
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Re: Mysterious Leak on a YJ

ATF??? Are you sure? My AX-15 has gear oil in it.

Ron R. - 90 YJ w/ good stuff [img]/wwwthreads_images/icons/cool.gif[/img]
post #5 of (permalink) Old 12-11-2000, 05:27 PM
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Re: Mysterious Leak on a YJ

my 87 tranny takes gear oil and the trans case takes atf. i don't know about the ax15. mine is the ba10/5. although my chiltons says all manual trannys use 75w-90 gear oil. this covers 1987-95.[img]/wwwthreads_images/icons/smile.gif[/img]

post #6 of (permalink) Old 12-11-2000, 07:14 PM
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Re: Mysterious Leak on a YJ

My moneys on the rear main seal or the valve cover.

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post #7 of (permalink) Old 12-11-2000, 07:30 PM
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Re: Mysterious Leak on a YJ

yep... 3:1 its the rear main seal.. 5:1 its the valve cover.. 50:1 its the tranny.. any takers..


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post #8 of (permalink) Old 12-11-2000, 10:16 PM
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Re: Mysterious Leak on a YJ

Exactly. I'm puting my money with Jeepgods.

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