What size socket for crank pulley bolt?

19j TD , my crank pulley bolt fell out on the road somewhere and I need a new one, I will also need a socket to tighten it up with, what size do I need guys?

I used a 42mm socket and a 41mm ring on my S3.

Is it in this list? (That I got from a LZ post so if it's wrong it ain't my fault )

Qty Size Pitch Length/Type Location
2 M14 2.0 80mm Panhard Rod
2 M14 2.0 Locknut Panhard Rod
4 M16 2.0 100mm Front Radius Arm to Axle
4 M16 2.0 Locknut Front Radius Arm to Axle
2 M20 2.5 Nylock Front Radius Arm to Frame
2 M20 - Washer Front Radius Arm to Frame
2 M20 - Dished Washer Front Radius Arm to Frame
2 M20 2.5 Nylock Rear Link to Frame
2 M20 - Washer Rear Link to Frame
2 5/8 11 4in Rear Link to Axle
2 5/8 11 Nyloc Rear Link to Axle
6 M10 1.5 30mm Rear Link Bushing Plate
6 M10 1.5 Nylock Rear Link Bushing Plate
8 5/16 24 nuts Shock Towers
8 5/16 - lock washer Shock Towers
2 5/16 24 1in Rear Link Balljoint
2 5/16 - lock washer Rear Link Balljoint
4 M10 1.5 35mm Front Rollbar
4 M10 - Washer Front Rollbar
4 M10 1.5 Nyloc Front Rollbar
4 M10 1.5 35mm Rear Rollbar
4 M10 - Washer Rear Rollbar
4 M10 1.5 Nyloc Rear Rollbar
2 3/4 16 4in Top Link
2 3/4 16 Nyloc Top Link
4 M10 1.5 35mm Front Shock Mount
4 M10 - Washer Front Shock Mount
4 M10 1.5 Nyloc Front Shock Mount
6 M10 1.5 110mm Rear Upper Shock Mount
6 M10 - Washer Rear Upper Shock Mount
6 M10 1.5 Nyloc Rear Upper Shock Mount
8 M12 1.75 Front and Rear Sway Bar Mounts
8 M12 1.75 Nyloc Front and Rear Sway Bar Mounts

20 M10 1.5 40mm Axle Flanges

6 M8 30mm Water Pump

16 3/8 24 Nylock Propshaft (front and rear) ends
8 3/8 24 1.25in Propshaft (front and rear) diff end
4 3/8 24 1.25in Propshaft (front) transfer case end

20 M10 1.5 Nut Differentials

Engine
6 7/16 14 96mm Cylinder Head
14 7/16 14 66mm Cylinder Head

8 3/8 UNC 2.79in Rocker Shaft Pedestals
2 M4 0.7 14mm Stepper Motor (IAC)
2 M4 0.7 Potentiometer

3 1/4 UNC 1in Plenum Water Jacket
1 1/4 UNC 1-3/8in Plenum Water Jacket

1 M8 80mm Plenum Chamber
5 M8 55mm Plenum Chamber
6 M8 - washer Plenum Chamber

1 7/16 UNC 1-1/8in camshaft

2 5/16 UNC 3/4in camshaft retaining plate

5 5/16 UNC 3-1/8in Front Cover
1 5/16 UNC 3-7/8in Front Cover
3 5/16 UNC 4-3/4in Front Cover
9 5/16 - washer Front Cover

8 1/4 - lock washer Valve Cover Bolts
8 1/4 - washer Valve Cover Bolts
4 1/4 20 1-5/16in Valve Cover Bolts
4 1/4 20 7/8in Valve Cover Bolts

6 M8 1.25 40mm Exhaust flanges
6 M8 1.25 Prevailing Torque Locknut
M8 12mm Crankshaft Pully

16 3/8 16 1" or 2"? Exhaust Manifold to Heads

2 M4 15mm TPS

Im thinking 41mm.
Ive pulled the pulley off and the key is spread at the front, the pulley wont go back over it. The pulley must have pulled forward then rubbed the front of the key as it rotated.
I have a spare key, is it completely necessary to take the timing belt cover off to change this key? The parts book says there is nothing in there but an oil seal. I cant see how an oil seal turns over a key, am I missing something?

Surely the seal runs on the boss at back of pulley?

From memory, should be a 42mm socket (and a big breaker bar)

According to this its a 41.

http://www.uktools.com/41mm-1234drive-deep-impact-socket-etc7934-crank-bolt-p-16984.html

Dingocroft also list it as 41mm

http://www.dingocroft.co.uk/acatalog/Franklin_Tools-p4.html

According to this there are two keys, I would have thought one was for the crankshaft sprocket and the outer was for the pulley, it seems the outer does both sprocket and pulley.

http://www.landroverworkshop.com/diagrams/engine/2.25-petrol/crankshaft-bearings_53013

Which seems like a bit of a faff.

nobber said:

According to this there are two keys, I would have thought one was for the crankshaft sprocket and the outer was for the pulley, it seems the outer does both sprocket and pulley.

http://www.landroverworkshop.com/diagrams/engine/2.25-petrol/crankshaft-bearings_53013

Which seems like a bit of a faff.

Click to expand...

it is 41mm but on that size you can get away with 42mm,its the same crank as earlier engines with chain drive so 1 key would hold sprocket the other the pulley but with belt pulley been much wider pulley now covers the outer key by half as well, which is why 200 tdis and tds etc have issues with keys and pulleys

That explains it then, that's a right pain in the bum.

I take it the sprocket it going to be a tight fit and pain to remove? especially over a worn key.

Could you try cleaning the key up a bit with something like a dremmel, obviously making sure any swarf cant fall into the engine. Assuming you are using the 4 puller bolt holes can you try and adapt the puller to work with a slide hammer as that may help?

I don't have a puller, I think the best thing is to get the timing cover off and get a proper look at it.

If you have a bit of metal plate and either 2 or 4 long bolts (6mm I think) you can fashion a puller to use the threads on the pulley

A bit like the one here (go down quite away and you will see the pulley getting pulled with three bolts)

Just read that. Fascinating. It's made me want to take my head off now. I think it says the holes in the timing belt pulley on the crankshaft are 5mm somewhere in Saint V8's write up. He's used bits of 5mm threaded rod and has succeeded in getting the pulley off past butchered woodruff keys, so there is hope for us all yet.

Thanks for the tip re the puller, good stuff.

It seems there are two bolts,

ERR605


And ETC7934



One is obviously longer than the other, any ideas?

Yep, stick yer finger in the 'ole an if you can feel the thread its the short one, if you can't well, its the long one..