Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: AndrewS on January 29, 2008, 07:11:09 PM

Title: CJ7 Transferbox oil leak
Post by: AndrewS on January 29, 2008, 07:11:09 PM: The Ice Maiden lived up to her name. She wouldn't let me drive her off road again :(
We drove her up to the 4x4 track about 20 miles from where I live. The re-built engine running lovely. Next thing we noticed oil stains in the puddles, so we checked under the vehicles and found oil pissing out of the transfer box on the CJ7. On closer inspection the oil is leaking from the front output shaft. I took the prop off today and the shaft can be moved/wobbled about 1mm.
So now I,m after some advice.
Is it box out, or can the front output shaft bearing be replaced with the box in situ
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Post by: tag on January 29, 2008, 11:13:25 PM: Not up on the cj7 but if it's 231/242 i reckon you could, if this link works it will give you a idea of the workings. http://www.youtube.com/watch?v=MH3VMyWgwNI (http://www.youtube.com/watch?v=MH3VMyWgwNI)
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Post by: Bubba on January 30, 2008, 05:29:22 AM: what t case is it mate
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Post by: AndrewS on February 07, 2008, 08:00:21 PM: Seized front prop splines seemed to have caused the problem.
Basically the front prop was forcing the front drive output 'up' stressing the bearing. Anyway its a Dana 300. I have removed the transfer box and the gearbox. Upon closer investigation there are oil leaks all over the place. So I thought fook it lets get the lot out and change all the seals whilst we are at it.

All I need now is someone that can refurb my Transferbox
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Post by: Ric Jacques on February 08, 2008, 01:36:34 PM: Get yourself a copy of the CJ rebuilders manual by Moses Ludel.

http://http://www.amazon.co.uk/s/ref=nb_ss_w_h_?url=search-alias%3Daps&field-keywords=moses+ludel&Go.x=18&Go.y=15

Gives you a step by step guide to trans case overhaul, amongst other stuff. Lots n lots of stuff. Gives you all the torque figures, bearing pre-loads etc etc.

just remember there are two versions of the book relating to build year. Make sure you get the right one!!

Worth it's weight in gold. :lol:
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Post by: Bubba on February 08, 2008, 05:04:56 PM: yup i am with ric it aint that hard
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Post by: AndrewS on February 11, 2008, 07:43:08 PM: Its a Dana 300

Got it out and apart. Ordered the bits from Lighthouse should get them tomorrow.

Thanks for the heads up ref the book :?: I cant decide if one side of mine has broken off. Its about 1/2 shorter. I should take a pic I suppose and post it.
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Post by: Bubba on February 12, 2008, 06:50:45 PM: junk it and twinstick it
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Post by: AndrewS on February 12, 2008, 09:38:17 PM: Quote from: "V8 Bubba"
junk it and twinstick it

:?:
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Post by: greggmo on February 12, 2008, 09:49:36 PM: one of these

http://www.4wd.com/productdetails.aspx?partID=9644 (http://www.4wd.com/productdetails.aspx?partID=9644)
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Post by: AndrewS on March 29, 2008, 07:22:56 PM: Been very busy lately. However managed to rebuild the transfer-box. Also replaced the input and output shaft seals on the gearbox whilst we were at it. Today we re-fitted the boxes etc. :?: can someone point me in the right direction as to where I can find this info or is it a case of obtaining the oil from Jeep.

Thanks
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Post by: tim_aka_tim on March 30, 2008, 07:28:31 PM: Read this, the bit on oil is at the bottom, but read the rest first.

http://www.moderndriveline.com/Technica ... istory.htm (http://www.moderndriveline.com/Technical_Bits/t5_history.htm)
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Post by: AndrewS on May 13, 2008, 08:38:21 PM: Finally got the CJ back together :-D Thanks for all your help :prayer:
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Post by: greggmo on May 13, 2008, 10:26:54 PM: well done mate.
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Post by: demonicwillow on May 13, 2008, 11:22:51 PM: So whats the sp regarding the twin stick thingy, is there more selection or something and has anyone fitted one, got any pics???