Oil pump on a poll chain saw... Help!

[magwick]

How on earth do you pull the oil pump out of a stihl ht 131?

I know it's something todo with the thread in its arse but I can't remember any further.

I also can't find a thread on hear which I have read In the past.

[Ray1]

Screw a 5mm bolt into it and use use a claw hammer under the head of the bolt to lever it out.

[magwick]

Nice, good fine tolerance engineering.

Cheers mate.

[magwick]

Still can't shift it, is there a recommended way of doing this? The claw hammer might have worked but the casting would be fubar.

[htb]

Take a long 5mm set screw put a plain nut on right up to the bolt head, then 2 penny washers or a thick washer. Screw into oil pump then screw nut down till washers contact casing.then hold bolt and wind nut down which will draw oilpump back out. Alternatively split head down and chap down the drive gear, this will fubar the oil pump but it will get it out. i think it is a 5mm thread on the oil pump butcould be 4mm, senior moment