Defender 130 TD5 gearbox problem

steveeasy · Mar 2, 2022

Hi,
Gearbox sounds like its on its way out. In Neutral it sounds like something is flying around in the bellhouseing. when driving sounds like UJ but its not. Load wobble donking noise. going to remove gearbox. does this sound like a shaft bearing. if so how difficult to replace. anyone know where I could get a replacement gearbox quick.

Steveeasy

Brown · Mar 3, 2022

Possibly the gearbox. Layshaft bearings and the 5th gear mechanisms are possible wear points on the r380, which is presumably what you've got. Mine became very noisy just over a year ago, especially on the overrun, plus a sort of rumble or rattle when idling in neutral. One thing you may notice is that it's a bit quieter in 4th, because that effectively locks the input and output shafts together and it's not transmitting any force through the worn and noisy components. If that's the case with yours then it probably is the r380 box. Whilst it's possible to overhaul them at home, you'll want to be very well supplied with presses and pullers, and somewhere indoors clean and dry to work too. For people like me working at the side of the road, it's easier to get a rebuilt exchange unit. I got an Ashcroft one, because they offer a choice of 5th gear ratios and an upgraded 5th gear bearing. But there are cheaper options available. I dunno about fast service. I had to wait a couple of weeks for mine but if you phone round a lot of places somebody might have one ready to put on a pallet and send you.

steveeasy · Mar 5, 2022

Brown said:
Possibly the gearbox. Layshaft bearings and the 5th gear mechanisms are possible wear points on the r380, which is presumably what you've got. Mine became very noisy just over a year ago, especially on the overrun, plus a sort of rumble or rattle when idling in neutral. One thing you may notice is that it's a bit quieter in 4th, because that effectively locks the input and output shafts together and it's not transmitting any force through the worn and noisy components. If that's the case with yours then it probably is the r380 box. Whilst it's possible to overhaul them at home, you'll want to be very well supplied with presses and pullers, and somewhere indoors clean and dry to work too. For people like me working at the side of the road, it's easier to get a rebuilt exchange unit. I got an Ashcroft one, because they offer a choice of 5th gear ratios and an upgraded 5th gear bearing. But there are cheaper options available. I dunno about fast service. I had to wait a couple of weeks for mine but if you phone round a lot of places somebody might have one ready to put on a pallet and send you.

Brown,
Thanks for the above. took the gearbox out today, I expected to find a loose input shaft but not too much play at all. So think ill just get a recon box. found lots of sealant between gearbox and transfer box. Not sure if anything should be between them.

Steveeasy

steveeasy · Mar 6, 2022

ok looking for a Gearbox for above. Does anyone know if the ratios for R380 boxes change or is it just the transfer box that determines this ?. Also does the surrfix number change the type of box. Trying to find something that is suitable.

Thanks
Steveeasy

Defender 130 TD5 gearbox problem

steveeasy

Active Member

Brown

Well-Known Member

steveeasy

Active Member

steveeasy

Active Member

Similar threads