I've broken my gearbox!!! - Defender Source
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  #1  
Old February 19th, 2006, 01:30 PM
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Mike Hammond
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I've broken my gearbox!!!

An hour or two into some splendid off roading today everything went pear shaped
Whilst descending a rather steep and ridiculously slippery hill I fetchet up with the bumper pressed rather hard against an oak tree.
A few spirited attempts at reversing out of this predigament seem to have destroyed reverse gear, well it won't stay in gear under any sort of power, even trying to hold it in with the gear lever doesn't help.
Only reverse gear is affected.
Is this going to be a new gear box job or is reverse gear relatively easy to get at?
Anyone out there got any experience with home gearbox rebuilds?
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  #2  
Old February 20th, 2006, 04:07 AM
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Ian McCormack
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did mine, that occurs generally due to wear in the rear layshaft bearing which allows it to twist. Reverse gear acts on the layshaft. I repaired mine with a new layshaft, layshaft bearings and reverse gear. The only problem I had was removing the 5th gear extension case from the main box. You need a special puller from landrover to remove the oil seal ring from the gearbox output shaft so you can open the gearbox casing. All in all it cost me about 150 pounds sterling
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Old February 20th, 2006, 03:33 PM
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Mike Hammond
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That's rather encouraging, the puller is the only special tool you need?
Did you buy it, hire it or fabricate it?
I was thinking about getting a rebuild kit from Legs.
I've rebuilt a couple of transfer boxes but never been inside a main gearbox.
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  #4  
Old February 20th, 2006, 04:23 PM
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No special puller needed. A simple set of gear pullers, a deep 32mm socket (i think look it up) and some bearing pullers and you can do the whole box.
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Old February 20th, 2006, 05:59 PM
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Mike Hammond
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Things are looking up.
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  #6  
Old February 20th, 2006, 07:22 PM
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Ian McCormack
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removing the oil seal ring was really the only major problem I had, Had a mate at the landrover dealer at the time who loaned me theirs. The only other issue I had was getting all the selection forks lined up properly when putting it back together as at the time I didnt have a manual. Took a couple of goes and a phonecall to someone who had a manual, but it was a minor issue really
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Old May 29th, 2006, 05:04 PM
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Mike Hammond
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Just 3 months after destroying the gearbox I've finally got round to dropping the transmission today.
I'm going for a recon box from Ashcroft, there's a fair bit of wear on the output shaft and the input shaft is leaking again. All in all after 100,000 miles I don't think the old box owes me anything
I'm getting distressingly good at gearbox removal as this is the 4th time in about a year and a half that the transmossion has been out
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