12 replies to this topic

[wain]

hi .does anyone know the maximum amount that can be shaved off a 98 outback ej25 head.
i have just replaced timing belt after it snapped.
i cant get the timing right.i have lined up the marks but #2 cylinder (front left) but the valves are hitting the piston.

[RX25SE]

If the valves are hitting the piston you must have the cam timing wrong.


When I shave heads and there is an issue with piston to valve clearance, I put Plasticine on the top of the piston and dummy assemble then measure the indentation in the Plasticine.

[wain]

timing marks all line up.it seems impossible.

[RX25SE]

Must have had a heap off the head if the timing is correct.


It's not something stupid like one bank is set 360deg from the other?

Can you feel (buy gently turning the cam wheel) if it is one side or both?

[wain]

only #2 intake is hitting.i am going to see if #4 does the same thing now

[wain]

all i can think of is that the head was shaved too much.but it was only 5 thou

[RX25SE]

5 thou is nothing.

I think your problem is elsewhere.


Double check the cam timing.

[wain]

i have all the marks lined up and turn the left inlet clockwise as per instructions.my son in law is a mechanic and it has him stumped too.
here is a you tube link to do it

[wain]

silly me.i found ot there is a second mark a the back of the crankshaft gear.the TDC mark is at 3 oclock and key is at 6 oclock.now o install tthe moor.
thanx for your imput

[skillionaire]

Hi,

Glad to hear it's sorted.

Keep us posted on the install!

Cheers,
Nik

[RX25SE]

Glad its all sorted.

Did you do the old "wire down the spark hole" trick to find TDC?

[Evil_VZ-T]

Its normally 12 oclock and 3 oclock on the crank sprocket

[wain]

its going now.no wire down the hole.i looked at TDC with heads off.the triangle is up top but its at 3 oclock to time it