front crank o-ring

[dawesj]

hey looked all over the net for this answere hoping some one on here can help me i am in the middle of doing my timing belt on my 300tdi disco and i am wondering if the front crank oring sits inside the timing belt pully or do you just push it on the crank and then slide the pully on. and any one got a way of tensioning the belt with out a dail torque wrench.
cheers josh

[langy]

The o-ring does sit inside the recess at the engine end of the pulley. A little lube helps as it's something that has to 'pop' into position. It is a case of putting it on the crank first, then the woodruff key and then the pulley. If the pulley is a bit sticky to get over the woodruff key, use the damper and bolt to wind it on. Hopefully, when the pulley get to where it should be, the o-ring has stayed in the right place.

You can use a normal torque wrench to measure tension - but it will need to be a smaller 3/8 drive ( tight spaces)

[Tank]

You need a dial indicator torque wrench or as I did one of those cheap torque wrenches with the long needle bar, because you need to hold at the correct torque while tightening. You cant do that with a micrometer/deflecting bar type torque wrench because once it clicks at the proper torque you have no way of knowing (while tightening the locking bolt) whether you have backed off or applied more than you should. You can get the wrench at most parts places, they look like a long breaker bar with a thin (1/8") pointer needle that extends from the socket end down to the handle where it indicates torque on a gauage plate, you can hold one of these at the required torque and watch the tip of the needle against the guage plate while you or someone else tightens the locking bolt/nut, Regards Frank.

[dawesj]

:Dhello
thanks for your help i placed the oring on the crank and then slid the crank pully on and pushed it most of the way in with a oring pick affter that last wooddrift key pushed the pully all the way home and the pushed a little harder and the oring went pop:D in to position.
thanks for your help now i just hope it wont leak.:)