Thread: LT230T Idler preload?

Neither the genuine WSM or my Rave manual make mention of that special tool or the process you are trying to undertake.

What is the "idler" you are asking about?

If you are looking at the contemporary replacement parts for the intermediate gear, setting preload of its bearings on the intermediate shaft, all references to new parts relate to a crush spacer. This spacer is crushed between the bearings as you do up the shaft nut to a set torque.

Can you give more info?

the method used for bearing preload on the intermediate shaft is by measuring the rotating resistance on the input shaft before fitting the intermediate shaft. then fit the intermediate shaft assembly and do up the nut and check the ratational resistance as you go with a spring gauge.

Yes it is the intermediate gear in the Transfer case that I'm referring to. My Rave manual under "Discovery/Overhaul Manuals/Transfer Boxes/LT230T-3rd Edition" on page 69 of 78 (page 44 on a printout of the overhaul section) shows the LRT in question. It also stresses that the crush spacers are no longer to be used but rather to be replaced with a fixed length spacer according to measure by calculation with this tool.

have fun mate, did it have the crush tube in it before.

Originally Posted by lambrover

the method used for bearing preload on the intermediate shaft is by measuring the rotating resistance on the input shaft before fitting the intermediate shaft. then fit the intermediate shaft assembly and do up the nut and check the ratational resistance as you go with a spring gauge.

I don't understand why you need to measure resistance of the input shaft, how do you do it and what do you do with the info. Also where and how do you measure the intermediate shaft and what range should the reading fall in. This method sound like you use the crush spacers which are not recommended now. Sorry for my ignorance on all this but this is my first tranny... finances...you know how it goes.

thats all right, now if the method of preload has changed the figures should still be the same. the reason the input shaft resistance is measured is it is used as a datum to measure from.

just say the input shaft resistance is 2.5kg, Now when the correct preload has been established on the intermediate shaft the figure will be increased by that spec.

Now in my book the the load has to be increased by 3.7kg plus or minus 1.63kg so if you take the 2.5kg and add your preload it should be around the 6kg mark.

Thanks lambrover for the tips, sound like I'm going to need a fist full of spacers and a lot of time.

yes you will , read over the manuel untill you are familiar with all the procedures and understand the process of what you need to do. If this is the first time you have attempted somthing like this you really need some one who has some experiance to help as it is critical the set up is done very accuratly. best of luck.