Rick W Posted September 17, 2012 Share Posted September 17, 2012 The gearbox on the MB needs serious attention. Would it make sense to remove the transfer case first before taking off gearbox? If you read the workshop manual it seems to indicate that the engine needs jacking up before you can take it out? Any advice, hints and tips appreciated. Quote Link to comment Share on other sites More sharing options...
Nick Johns Posted September 17, 2012 Share Posted September 17, 2012 (edited) Take the gearbox/transfer out as one unit, place a block of wood between the engine block/cylinder head and bulkhead to support the back of the engine as you lower the gearbox after removing exhaust , throttle linkage, rad hoses etc which will otherwise be strained as the engine lowers Edited September 17, 2012 by Nick Johns Quote Link to comment Share on other sites More sharing options...
Rick W Posted September 17, 2012 Author Share Posted September 17, 2012 Thanks Nick, just the sort of tip I need! They dont mention the block of wood in the manual.:-) Quote Link to comment Share on other sites More sharing options...
Willyslancs Posted September 17, 2012 Share Posted September 17, 2012 we found the wood useful when we did ours years ago ....quite straighforward as we are not mechanics............ Quote Link to comment Share on other sites More sharing options...
w896andy Posted September 17, 2012 Share Posted September 17, 2012 I would agree especially with removing the radiator hoses, in fact its easier to take the radiator out. If you don't take the hoses off you run a big risk of breaking the radiator bottom water pipe from the bottom radiator tank. This is due to lack of flex in the hoses and as the engine twists backward when the box comes out it snaps the radiator pipe. I know I've done it !!!! Quote Link to comment Share on other sites More sharing options...
Scammell4199 Posted September 17, 2012 Share Posted September 17, 2012 Instead of the block of wood, better off putting a trolley jack under the back of the engine, that way you've got a bit of up and down adjustment, handy for realigning things. Richard Quote Link to comment Share on other sites More sharing options...
willysmb Posted September 21, 2012 Share Posted September 21, 2012 You will need to remove the cross member that holds the gearbox and tranny ... We used a engine hoist to support the gearbox ( pushed it through the door opening , and removed the gearbox cover ) by using some straps/rope ..the gear box and tranny is one heavy lump. As mentioned ..wood block and yes it takes a little longer but taking out the rad will help with space .. Quote Link to comment Share on other sites More sharing options...
Nickmow Posted September 29, 2012 Share Posted September 29, 2012 I had an epic couple of days with this not long ago. First attempt and a lot of trepidation ! That said now I'd be a lot happier doing it second time round. Tips I picked up (missed the block of wood one though, that would of been useful). If you got one a long metal rod through the back of the front leaf springs to support the engine once it is lowered. I happened to have a knackered half shaft that worked a treat. I was lucky to borrow a winch and secure it to the garage roof and used it to take the weight of the box and transfer case, though next time I would have two straps crossed under the box. it is a lump though, I took off the cross support just because working on my own it was quite bulky. The consensus seems to be two jacks but get a mate to help and the. You have the whole thing on two jacks with no place to go. I ended up lowering it bit by bit onto asheet of wood on the floor so I could give me self a hernia :laugh: And drag it out. It sounds easy in the manual but be aware it's heavy and awkward and there really is no substitute for experience. Rebuilding the box was actually quite simple, lots of tips and John Bartons blow by blow guide is excellent. The boys at Dallas Autos said they'd do it for me but to save costs why not DIY and they could offer advice/parts etc. Really chuffed I did it myself now...and it still appears to be working ! Quote Link to comment Share on other sites More sharing options...
Willyslancs Posted September 29, 2012 Share Posted September 29, 2012 good to hear mate :thumbsup: Quote Link to comment Share on other sites More sharing options...
Rick W Posted September 29, 2012 Author Share Posted September 29, 2012 Agree with the John Barton guide, I rebuilt a box and trans that I had spare in a day thanks to that guide. Was he the same bloke who done the engine rebuild guide as well? Quote Link to comment Share on other sites More sharing options...
gas 44 Posted October 1, 2012 Share Posted October 1, 2012 Hiya,our gearbox is already out but will need some attention,so where would I find the guide you fella's are raving over, thanks in advance. G Quote Link to comment Share on other sites More sharing options...
cripp Posted October 1, 2012 Share Posted October 1, 2012 http://www.g503.com/forums/viewforum.php?f=4 Quote Link to comment Share on other sites More sharing options...
Nickmow Posted October 18, 2012 Share Posted October 18, 2012 Jeepdraw did it as an article.. http://jeepdraw.com/John_Barton3-GEARBOX2.html http://jeepdraw.com/John_Barton3-GEARBOX3.html http://jeepdraw.com/John_Barton3-GEARBOX.html Very useful Quote Link to comment Share on other sites More sharing options...
gas 44 Posted October 20, 2012 Share Posted October 20, 2012 Thankyou fella's,first class. Quote Link to comment Share on other sites More sharing options...
Wolfy Posted October 29, 2012 Share Posted October 29, 2012 The John Barton guide is good but also use Youtube theres a great step by step on there and seeing it on film is better :laugh: Quote Link to comment Share on other sites More sharing options...
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