Hi guys,
Have done some searches and cant find the answer I'm looking for. I started my timing belt change today and got to the point of putting the locking pin in to flywheel housing. Took the plug out but I can't see the mark to push the pin in to. My Disco is a 200TDI Auto. Now I have read several threads which say there is a plate which can be removed to lock the torque converter. I'm quiet tired a little frustrated and can't find the a direct answer about how to lock this off so that the crankshaft doesn't move. I've locked the injector pump and lined up the marks but can't see the mark when laying under the car. When I move the crankshaft nothing moves inside the flywheel housing.... Any help would be much appreciated.....

All you do it put the woodruff key dead at 12 o'clock and when belt is off you can see a tiny arrow at the back that lines up with cutout on crank pully. Only tool I used to do mine was 9mm drill bit and common sense. To be sure your happy when belt is off get it cock on on the arrow and mark pully at front with paint or marker pen if your unsure. Really is dead easy belt to fit. Hour and a half took me tops in the rain. Found to get cam just right I took photo with my phone to double check everything as I left radiator in

Racandy said:

All you do it put the woodruff key dead at 12 o'clock and when belt is off you can see a tiny arrow at the back that lines up with cutout on crank pully. Only tool I used to do mine was 9mm drill bit and common sense. To be sure your happy when belt is off get it cock on on the arrow and mark pully at front with paint or marker pen if your unsure. Really is dead easy belt to fit. Hour and a half took me tops in the rain. Found to get cam just right I took photo with my phone to double check everything as I left radiator in

Click to expand...

Cheers mate. I am aware of the arrow etc. Its just in everything I have read or seen they say even when the front is lined up the tooth I the flywheel housing can be out. What worries me is that when moving the crank I cant see any movement from inside so I cant tell if the notch inside is correct. The pin I have goes all the way in but doesnt stop the crank from moving. I just didnt know if it was different for autos. Some people have mentioned the torque converter but im not sure how to get to this or lock it.... cheers for the help...

On mine I bought a 300tdi locking pin set with pullers etc but there was no way to lock the crank on an auto.

I just locked the pump and made double sure the crank stayed exactly where it was, I marked it with tippex and took photos to make double sure.

It did not move and all went ok, the only bit i was worried about was torquing the crank pulley back up tight, so i used loads of loctite on it and its been fine.

I've done a couple of changes now, had a right mare the first time! Found that locking the fuel pump with 9.5mm drill bit (9 is too small and can cause timing to be out) and ensuring both cam and crank gears point at the arrows did the trick. Mines a 300 auto and I ignore the bell housing pin. Oh and removing the radiator helps a lot with space, even if you have air con. To do the job properly you need the correct crank locking tool or make one yourself by bolting a bar to the damper long enough to lock against the chassis.
To fit the crank oil seal I put 2 crank gears on the shaft (new and old) and tightened it all up with the crank pulley bolt.
Hope that makes sense had a few scoops

Eventually found it!!!! I will put some pics up for anyone who doesn't know either. Basically the Haynes manual says its a small plate at the back of the engine behind the sump.... I looked for ages all round that area only finding the small flywheel housing one. Anyway here is a description of where to find the hole to lock the crank shaft on a Land Rover Discovery 200tdi auto. Under the car looking from the front towards the back, follow the transmission oil cooling pipes back until they kink. At this point run a torch up the back plate of the engine there will be a hole about 12" up on the back plate. Mine had no plug in it I imagine its supposed to. I screwed my pin in and it locked the crank shaft beautifully... As I said I will post pics so its easy to find..... Thanks for all your help guys, Unfortunately I was unable to complete the timing belt due to one of the bolts shearing off.... more work!!!!

So as promised some pics for you...

Looking from the drivers side wheel arch...



Move under the car by the sump....



Follow the transmission oil lines back till the kink...



Stop there and follow the engine back plate up and you will see a hole or a bolt which is sitting forward to aft in the rear engine plate... this is it!! Screw your pin in to here and it locks the crankshaft....








Hope this might be of help to anyone looking to lock there crank shaft when you have an auto gear box....