reb78 Posted December 9, 2013 Share Posted December 9, 2013 I'm going to change my engine mounts and gearbox mounts soon. Looking at the current engine mounts, the top half of them appears to be pulled backwards by the engine thus, they don't sit square under the mount brackets and are constantly under tension. In effect, it's as if the engine needs to be pulled half an inch forwards so that the engine mount brackets sit squarely over the chassis mount brackets. Does that make sense? I know there is some forwards/backwards adjustment on the gearbox mounts as the holes are slotted, but what would be the best way of drawing the engine forwards? Quote Link to comment Share on other sites More sharing options...
Team Idris Posted December 9, 2013 Share Posted December 9, 2013 It sounds like it's time to find a truck just like yours and start measuring? That way you can see what needs to be worked which way? And be sure you aren't pulling something a funny way. Quote Link to comment Share on other sites More sharing options...
steve b Posted December 9, 2013 Share Posted December 9, 2013 A scissor jack between the transferbox and the next x-member should allow you to shift it with the rear mounts loosened cheers Steveb Quote Link to comment Share on other sites More sharing options...
reb78 Posted December 9, 2013 Author Share Posted December 9, 2013 It sounds like it's time to find a truck just like yours and start measuring? That way you can see what needs to be worked which way? And be sure you aren't pulling something a funny way. I dont think anything is way out, just that when i last removed the gearboxes, the engine tipped back a little and moved back a little and so, whilst i was able to bolt the gearbox mounts back in place, they were a little too far rearwards. An inch is an exageration it'll be more like 3/8" Quote Link to comment Share on other sites More sharing options...
reb78 Posted December 9, 2013 Author Share Posted December 9, 2013 A scissor jack between the transferbox and the next x-member should allow you to shift it with the rear mounts loosened cheers Steveb Good plan. My bottle jack with a wooden spreader should do the trick if i loosen the gearbox mount bolts where the slitted holes are and then jack forward a little. Quote Link to comment Share on other sites More sharing options...
ukspike Posted December 9, 2013 Share Posted December 9, 2013 Bottle Jack's don't usually work very well when laying horizontally, they run out of oil as a rule, scissor jack would be your best bet. Quote Link to comment Share on other sites More sharing options...
mmgemini Posted December 9, 2013 Share Posted December 9, 2013 Use a scissor jack. It is IMO the best tool for the job. Datsun or Toyota make super scissor jacks. Quote Link to comment Share on other sites More sharing options...
reb78 Posted December 9, 2013 Author Share Posted December 9, 2013 Ok. I'll try and find a scissor jack. The disco and the 110 have bottle jacks. The bmw doesn't have one at all as it has stupid run flats? Quote Link to comment Share on other sites More sharing options...
mmgemini Posted December 10, 2013 Share Posted December 10, 2013 Ok. I'll try and find a scissor jack. The disco and the 110 have bottle jacks. The bmw doesn't have one at all as it has stupid run flats? Scrap yard will find you one, or two will be better. Quote Link to comment Share on other sites More sharing options...
Disco-Ron Posted December 10, 2013 Share Posted December 10, 2013 Call me daft, but if all you're trying to do is effectively move where the gearbox mounts are bolted up, why not just slacken the bolts, then use a drift/screwdriver to knock forward the bottom plate of the mount?? Quote Link to comment Share on other sites More sharing options...
reb78 Posted December 10, 2013 Author Share Posted December 10, 2013 Call me daft, but if all you're trying to do is effectively move where the gearbox mounts are bolted up, why not just slacken the bolts, then use a drift/screwdriver to knock forward the bottom plate of the mount?? Because the engine and gearbox and props are still attached. I don't think a screwdriver will give me enough leverage to shift all that? The jack will also hold it all in place whilst I nip the bolts back up. Quote Link to comment Share on other sites More sharing options...
Tetsu0san Posted December 10, 2013 Share Posted December 10, 2013 You will be surprised at what a hammer and a drift can do. Quote Link to comment Share on other sites More sharing options...
GBMUD Posted December 10, 2013 Share Posted December 10, 2013 Loosen the nuts, drive car into tree, tighten nuts. Simples. I have a similar issue with my 1987 300Tdi, but that is apparently a little too far forward and does not leave space for the viscous fan - which may be further frustrated by the automatic gearbox fitment on the (original?) gearbox mounts. Once day it will all be sorted out with a nice new chassis... Chris Quote Link to comment Share on other sites More sharing options...
Disco-Ron Posted December 10, 2013 Share Posted December 10, 2013 Because the engine and gearbox and props are still attached. I don't think a screwdriver will give me enough leverage to shift all that? The jack will also hold it all in place whilst I nip the bolts back up. But all you're trying to do is move the base of the mount, jacking the whole lot forward may not even achieve what you want! Quote Link to comment Share on other sites More sharing options...
reb78 Posted December 10, 2013 Author Share Posted December 10, 2013 But all you're trying to do is move the base of the mount, jacking the whole lot forward may not even achieve what you want! I want to move the gearbox and engine forward half an inch so that the base of the engine mount brackets sit further forwards over the engine mount welded to the chassis. Just shuffling the gearbox mount forward without moving the engine and box wont acheive this. Quote Link to comment Share on other sites More sharing options...
Disco-Ron Posted December 10, 2013 Share Posted December 10, 2013 Well I'm not sure what else holds it in place then! Maybe shortening the rad hoses would help! Quote Link to comment Share on other sites More sharing options...
Landowner Posted December 10, 2013 Share Posted December 10, 2013 How about a ratchet strap around the back of the engine and around the front crossmember. Could click it forward a bit at a time Quote Link to comment Share on other sites More sharing options...
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