DarrinWrx

Hey people,
Can anyone tell me how they undo their cam pulley without timing belt on (as service manual suggests). I'm taking the cams off in a problem solving exercise to find out that I need a large 60mm spanner/sprocket to hold the pulley while I undo the nut in the centre of it........don't have anything that big, or if I do it cannot hold it well enough for me to undo the nut.
How do you lot accomplish this tricky situation???
If you were wondering...I think I have a broken valve spring, that is why I am doing this.
Look forward to your helpful replies.

merlin24

iTrader: (1)

You can try and wrap the old cam belt round the pulley so it jams against the other pulley - or put the belt/tensioner/idlers back on and then loosen the pulley.

Mick

Tucker82

iTrader: (7)

I did mine by getting a pair of grips to hold the cam shafts tightly (at the front of the shafts) with a mate and then shocking the pulleys off one by one. Make sure you got the shaft held tightly though! I tried the cambelt wrapped around and held with a pair of grips and it didn't work. Hope this helps

DarrinWrx

Thanks once again people.
Will try that tomorrow.

WUZ

iTrader: (14)

There is a machined recess in the middle of the cam (24mm IIRC) - you put your spanner on there and hold it with one hand and use a socket and breaker bar on the Cam sprocket.

EASY PEASY! - be aware that they are tight though........... and no using adjustable spanners, etc as that is asking for trouble!

Russell

DarrinWrx

Thanks for that WUZ, will be careful.
Magic, got them off and head...now to check springs on valves for that annoying tapping noise. Cheers all.

merlin24

iTrader: (1)

Never seen a broken valve spring on a Impreza - but have seen plenty of heads with the springs on upside down ( paint ID code faces upwards ).
Check the valve clearances before you pull the cams on the non hydraulic versions - might narrow it down a bit.

Mick