Mileage 139175
The Landy was supposed to have had a service not long before I bought it but I thought it might be an idea to give it an oil and filter service and also check the valve clearances. Parts were bought, as usual, from MJA Landrovers.

Parts ready to fit
The first thing the engine needed was a good clean so a liberal dose of ‘Gunk’ followed by a hot pressure wash soon had the head clean.

Dirty.......

Clean!
The rocker cover was removed and valve clearances checked. You need to be able to turn the engine over to do this and I found that a socket on the end of the crankshaft and using my big torque wrench I could easily turn the engine over using my foot under the car while I watched the tappets.

Rocker cover removed
To adjust the tappets you need to make sure the valve is fully closed. The easiest way to do this is to follow the ‘rule of nine’ in other words, turn the engine over until, say, No 8 tappet is fully open (down) then adjust tappet No 1. Turn the engine over until the next valve is fully open and, if it is say No3, adjust No 6 and so on until all tappets have been adjusted. The Tdi engine needs a clearance of 0.2 mm or 0.008″. Slide the feeler gauge of the correct size between the valve and rocker arm, loosen the locknut and adjust the screw. Once all the clearance is taken up,tighten the locknut. Make sure the clearance doesn’t go too tight as you tighten the nut, the feeler gauge should be a tight sliding fit.

Adjusting the clearance
A new gasket was used when replacing the rocker cover and it was torqued down to the specified 7 ft/lb…..but it still leaks a bit!….ah well,I shall have to investigate using some sealer to sort it out.
Onto the easy bit (or so I thought) changing the oil and filter.I slid my drain pan under the engine and got my 19mm spanner ready to undo the drain plug but I was shocked to see some sort of gunge had been liberally spread all over and around the drain plug.

What the????????
I carefully chipped most of this away to find the plug wasn’t very tight at all…….and it wasn’t very tight because the thread was stripped. I removed the plug and it was clear that the threads on the plug were well and truly goosed.

Stripped thread
This was a good sign, I suppose, because it indicates that the plug threads are softer then the sump threads so, hopefully, all it would need is a new sump plug rather than a complete new sump. Being Saturday afternoon, everywhere was closed or closing but Martin Motors of Martin Husingtree came to the rescue and sold me a new sump plug and washer despite having closed the shop 10 minutes previously. I cleaned the sump pan threads carefully with an angled pick removing bits of plug thread and kept my fingers crossed as I carefully fitted the new plug. It seemed to find the thread OK and wound in fine though a little stiff. The good news is that it torqued up to 26 ft/lb with no hint of stripping so the thread in the sump seems to have survived OK.

New sump plug
The rest was plain sailing. Fit new oil filter (after getting oil all down my arm removing the old one…..whyhave I NEVER been able to change an oil filter without doing this), fit new fuel filter and finally fit new air filter.

Oil filter

Fuel filter

Air filter
Everything bolted back together and off for a test drive. All seems well with no leaks (except the rocker cover of course) so, job done!