I'm doing a timing replacement on my 07 and I am reinstalling the harmonic balance. I know you have to line up the "woodruff key" on the balancer but before you install the bolt, when you have it lined up correctly is the harmonic balancer flush with the shaft or does the balancer protude a little or is it supposed to be flush with the shaft before you install the harmonic balance bolt?

It should slide all the way back but if the timing gear was not seated all the way, you may have it out a bit.  Just tighten the bolt slightly and then remove it and it will most likely be tight against the shaft. 

 

Larry

My Impreza is an 07 base model sedan with automatic trans. I have torqued the crank pulley to 44nm then 55nm but the crank pulley is still about 2mm to 4mm from being flush with the shaft. I know the woodruff key is lined up otherwise the pulley would not go on at all. What am I doing wrong here? 

 

I know that the Subaru SPT manual specifies torquing the bolt to 44nm then retorque to 127NM for a DOHC(see below). Is it the same for SOHC? I'm worried about overtorquing the shaft and elongating the threads which would requiring replacing the shaft.

 

1) Install the crankshaft pulley.

 

2) Install the pulley bolt.

 

To lock the crankshaft, use:

 

ST 499977300 CRANKSHAFT PULLEY

 

WRENCH

 

(3) Clean the crankshaft pulley thread using an

 

air jet.

 

(4) Apply engine oil to the crankshaft pulley bolt

 

seat and thread.

 

(5) Tighten the bolts temporarily with tightening

 

torque of 44 N·m (4.5 kgf-m, 33 ft-lb).

 

(6) Tighten the crankshaft pulley bolts.

 

Tightening torque:

 

127 N·m (13 kgf-m, 94.0 ft-lb)