Richard Mills

If there is a dodgy valve, a compression test will prove it. I have never done one on a diesel before, so I expect a reply from someone else will tell us how.

Hi There, My bonnet catch was well iffy, would not open or shut properly. The previous garage maintainer had well greased all parts, and the body. I fixed it by removeing the whole catch, (remove plastic front piece first),chassis and bonnet bits. The chassis bit is rather fiddly but the main problem is on the right hand side, it's a tiny pivot pin. If it had been oiled when the car was built there would never be a problem. I washed all the gunge off with parafin and added some "Chain lube" ( Motorbike stuff). for a good fix. The upper part was well siezed and needed the blow-lamp and plenty of WD40 to free it. When re fitted and the top bit adjusted correctly (undo the nut and turn slotted end with screwdriver) The bonnet is now a dream to open and shut. I also squirted the WD40 on the cable end of the pull knob. Very tight in there. Not really needed though. I recommend not undoing the cable clamp just hang it out the front for a quick clean and lube should be enough. Good luck with it.

Hi There, a friend of mine had the circlip come off the wastegate of the turbo, caused a similar problem. But easier to check is that the inlet system is sound. Leaking pipes or the intercooler leaking can cause smoke.

Hi There , I just blanked off the EGR on my Disco. It was easy and simple. Just leave everything there, but where the output from the EGR joins the inlet pipe, I just used the gasket to draw around and cut a shim from an old can. Inserting this in there stops the gas circulating and renders the EGR valve out of service. 10 Minute fix.

Hi I've done a couple of my door springs. Got them from "Disco-compatible-parts.com". Though the first one I did was on the back door, where I pinched the spring from the Child lock Lever, and used that . Remember to wire the child lock off if the spring is removed. Also spray with "Chain Lube" after fitting to avoid them rusting away in the future.

Hi There, On my 300tdi the alternator has a rectangular block with 3 nuts on it. Top is Red , main output, Middle is White, and the bottom is the grey. The spade is at about 7 O,clock on the very outer rim. I suspect it may be your spade has broken off, so you may have to put a new bit on the terminal. Good luck.