size of harmonic balancer bolt on rb25det?

[kryz]

Need to undo this bloody thing. is it 27, 29? undo counter clockwise as per usual right?

engine conversions suck.

thanks.

[blind_elk]

Its a 27mm bolt, undoes anti-clockwise. Guessing the engine is out of the car, so you have to lock out the flywheel (shove a bolt or big phillips screwdriver in one of the gearbox bolt holes, then use a flat screwdriver into the teeth of the flywheel). You'll probably need a breaker bar to undo the crank pulley bolt.

[Duncan]

or take the flywheel off and put a bolt back in one of the flywheel holes and lever against that. You'll need a nice strong screwdriver and big breaker bar for that one

[wrxhoon]

If its out of the car the easiest way , use a ratle gun .

If still in the car use the starter , a socket on a long bar hit the starter and she is off .