Hendrik Posted May 12, 2008 Share Posted May 12, 2008 I'm Running a 4hp22 on a 3.9 megasquirted V8, bought the engine from a chap who said engine gearbox were still good (I drove the rrc but was first time with autobox so couldn't really compare... was a late RRC in pretty good condition but with rear damage on the bodywork). We installed the engine and gearbox with a dedicated air oilcooler (without fan) and an lt230 transferbox in the truck. After a year of hard work, 2 weeks ago it was the first test without problems but when we came home we had to "raise" the revs before the autobox wanted to change gears which was already strange. Due to a lack of time we could only check it today but the truck wasn't moving anymore when we put it in no mather what gear. things we checked: -oillevel was ok (maybe a bit to much but not a lot) -shiftercable isn't broken -engine still runs perfect... What could this be? We run 39" tyres on the truck, but with a reduction of 6.5 in the diffs so shouldn't have an effect on the gearbox. Thx for your advise! H. P.S. still doubting to change to lt85 manual... Quote Link to comment Share on other sites More sharing options...
nas90 Posted May 12, 2008 Share Posted May 12, 2008 I'm Running a 4hp22 on a 3.9 megasquirted V8, bought the engine from a chap who said engine gearbox were still good (I drove the rrc but was first time with autobox so couldn't really compare... was a late RRC in pretty good condition but with rear damage on the bodywork). We installed the engine and gearbox with a dedicated air oilcooler (without fan) and an lt230 transferbox in the truck. After a year of hard work, 2 weeks ago it was the first test without problems but when we came home we had to "raise" the revs before the autobox wanted to change gears which was already strange. Due to a lack of time we could only check it today but the truck wasn't moving anymore when we put it in no mather what gear. things we checked: -oillevel was ok (maybe a bit to much but not a lot) -shiftercable isn't broken -engine still runs perfect... What could this be? We run 39" tyres on the truck, but with a reduction of 6.5 in the diffs so shouldn't have an effect on the gearbox. Thx for your advise! H. P.S. still doubting to change to lt85 manual... Did you try reverse when you tried all the gears? Did you try high and low in transfer box Is the transfer box engaged in either high or low? Quote Link to comment Share on other sites More sharing options...
Pete Attryde Posted May 12, 2008 Share Posted May 12, 2008 Sounds similar to mine See here. According to Ashcrofts there is a drive member inside the box that fails and leads to complete loss of drive. Quote Link to comment Share on other sites More sharing options...
Hendrik Posted May 12, 2008 Author Share Posted May 12, 2008 Did you try reverse when you tried all the gears?Did you try high and low in transfer box Is the transfer box engaged in either high or low? yep tried R N 3 2 1, transfercase in H & L difflock off and on but still nothing... Thx H. Quote Link to comment Share on other sites More sharing options...
Hendrik Posted May 12, 2008 Author Share Posted May 12, 2008 Sounds similar to mine See here. According to Ashcrofts there is a drive member inside the box that fails and leads to complete loss of drive. Can this problem be solved? or new gearbox only option? I have a spare autobox in my garage but no Idea in what condition it is, what are the things to check to know this? thx H. Quote Link to comment Share on other sites More sharing options...
Pete Attryde Posted May 12, 2008 Share Posted May 12, 2008 Sorry I don't know if/how it can be fixed. I had to get a new box as the Discovery is my daily drive and I needed it working as soon as possible. Quote Link to comment Share on other sites More sharing options...
Hendrik Posted May 13, 2008 Author Share Posted May 13, 2008 mail sent to ashcroft, lets hope they can help... Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.