109 Engine Mounting

The combination of the 200Tdi engine on Defender mountings and the axle upgrade lead to an unforeseen clash, literally.  Under heavy braking, the front UJ of the front prop shaft was hitting the right hand side engine mounting.  This came about because of two reasons: firstly, the Defender mounting hangs very low to clear the […]

Gear Box OK

The gear box is now working correctly, and not before time.  It has been a very severe source of frustration!  The main shaft splines are a bit worn, and i suspect the overdrive coupling’s corresponding splines are also similarly affected, giving a small amount of backlash.  It’ll be alright for a few years yet, but […]

Gear Box, Again

I stripped and rebuilt the gear box with new bearings for the main shaft and the back of the lay shaft – they all looked fine, but the main shaft rear bearing (the big one) had a small amount more play than its new replacement.  I refitted the old primary pinion that hadn’t been jumping […]

Dropping the Diff Ratios – Salisbury

Though the 3.54 diffs in the coiler axles gave me much better cruising rpm and fuel economy (10%), they didn’t drive nicely and I strongly suspect they were a major contributory factor in the failure of the gear box.  So, I have replaced the rear 3.54 diff with a SIII 109’s  4.71 ratio diff.  The […]

Gear Box Out Again

After a couple of days, the gear box started popping out of 4th on the over-run.  It was also a little noisy, too.  I suspect the problem was how I fitted the transmission after replacing the broken gear – instead of assembling the entire transmission and then lifting it into the vehicle with a crane, […]