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Guest diesel_jim

cam belt changed.

wear in the gearbox mainshaft (where it goes into the transferbox)

corrosion in the corner of the seatbox (where the seatbelts bolt onto)

thats about it really.

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cam belt changed.

wear in the gearbox mainshaft (where it goes into the transferbox)

corrosion in the corner of the seatbox (where the seatbelts bolt onto)

thats about it really.

thanks Jim,

wear in the gearbox mainshaft (where it goes into the transferbox)

tell me please what is method to check this easily?

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cam belt changed.

wear in the gearbox mainshaft (where it goes into the transferbox)

corrosion in the corner of the seatbox (where the seatbelts bolt onto)

thats about it really.

Hi i am a newbie i dont currently own a landy but work on them and would like to add check for rot as at work last week we had a 1997 defender 90 with severe rot on the whole chassis

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Hi Les, I was very interested in your post about wear in the mainshaft diagnosis as I have heard this 'clunk' from mine for quite a long time but as you stated, it sounded like it was coming from the rear rather than around the gearbox. Mine is a 200tdi with a replacement Ashcroft LT77 (box is about 3-4 years old) and I wouldn't have expected this kind of problem so soon. Any thoughts?

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I had the same clunking coming from the back axle. I changed the bushes and it got a lot better - then changed the propshaft UJ's, and it got a lot better again. I still couldn't get rid of some clunk, so I removed the plate at the back of the gearbox/xfer box and looked at the splines. They were quite heavily worn, but just decided that I would wait until I found a 'box full of neutrals' and then would go to see Mr. Ashcroft. I very much doubt that a new gearbox, with a cross drilled gear would wear that quickly. Have you looked at the rest of the transmission? Propshaft, Diff, halfshaft flanges, bushes etc?

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Front and rear props are about 18 months old each as is the big A-frame ball joint. The age and condition of the T/box is not known and this could be the culprit perhaps. The clunk is not always there but most noticeable when pulling away up a steep incline in either fwd or reverse. I have also acquired a second 'clicking' noise when I rock the vehicle vigorously from side to side from somewhere around the rear axle but unfortunately I cannot get under the thing and rock it at the same time to pin-point the source. Need a stronger wife!

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The Ashcrofts gearbox will have come with a new input shaft and as long as you also have the cross-drilled gear to go with it, then the problem with mainshaft wear is eliminated. If you lie under your truck while someone selects 1st and lets the clutch out a bit harshly you'll be better able to determine where the noise is coming from.

Les.

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