need advice on jamming crankshaft pully

[Cypher007]

my dad is trying to do a cam belt change on a volvo 940 2.0l B200F 1992. he needs some advice on how to jam the crankshaft to allow him to take off the crankshaft pully and retighten it later. the haynes manual he has is a bit vague. is there a tool to lock the flywheel?

[Chesh740R]

Take the starter motor out and using a large screwdriver or chisel wedge into one of the flywheel teeth and then undo the crank pulley.

Also if its a manual, put it in 4th gear, have someone step on the brakes and then undo the crank pulley. If this fails revert to the starter suggestion

[pookie]

Try and borrow a cordless impact wrench?

[mollusk]

I would suggest you do not try to jam the flywheel as you risk damaging the 'toothed' ring that is read by the crank position sensor.

The correct way is to use special tool no. 9995284 - this has a a number of teeth that engage in the front pully and has an extended arm that fits over the belt tensioner stud. The tool locks the pulley allowing you to undo the centre bolt (and more importantly torque it correctly on refitting).

The following pix show a tool I made up myself but the dimensions are the same and it looks identical to the factory tool. (It will fit any of the B200/230 engines as the have the slots in the pully/damper that the tools teeth fit).





p.s. I found the tool dimensions on the net - and yes it does work!

Good luck - Mollusk.

I've always used a large screwdriver or bar and never once sheered a tooth (just imagine the forces put on when the starter spin)

I doubt if you could brake a tooth either

[pookie]

Also old motor mechanics trick.
Get a long ring spanner on the crankshaft nut, long enough to jam against something solid and substantial e.g. chassis. Disable the ignition and energise the starter very briefly. This uses all the starters power to crack the nut.

Pookie

[Suterman]

put the car in gear.

[Cypher007]

my dads has now received his volvo tool 9995284 from volvo, but it seems hes also received some other parts that hes not sure what there use for, he described them as some sort of clips. does anyone know what they are and what hes supposed to do with them?

For this particular job definitely pookie had the right solution....

... but out of interest:

Did you hire the tool or buy it? Or did dealer lend it for free?
How much was it (hire fee or purchase price)?

Reason I ask is I've sometimes thought "this **** job would be a lot easier with the right volvo tool", but I've never actually considered getting said volvo tool on the basis they must cost loads to actually hire or buy.

(Also IIRC the VOC has a selection of tools which are available for members to borrow, although I've never thought to try this route either).

Pete

[mollusk]

Hi Cypher007 - if your dad actually purchased the tool from the dealer it would have come with the necessary clips to store the tool on the dealers special tool board storage rack. It would probably also had a little sticky label with the tool number and a picture.

Dealers have a system of tool boards (on a wall) to store all the various special tools - when Volvo supply these tools they come with the storage clips as well.
It would be assumed that tools would be bought by a dealer who already had the storage boards. The little labels stick to the board to identify the correct position on the board when the tool is in use.

Depending on the type of tool, it can come with clips, hooks, little tubes, or pegs each of which fit into square holes on the storage board.

Hope this helps,

Mollusk.