Z27AG Clutch and Rear Main PI

Previous blog on clutches and video: http://ayu452.blogspot.com.au/2012/04/z27ag-ralliart-colt-clutch-install.html

Worn out diaphragm spring, looks like uneven wear caused by the throwout bearing.

Or the diaphragm fingers collapsed for some strange reason

More on clutch workings >>>

Exedy says:  Clutch diaphragm fingers or levers are uneven.

CAUSE

The pressure plate cover assembly was torqued down incorrectly i.e. not diagonally.

The pressure plate cover assembly was torqued down with an air wrench.

SOLUTION

Refer to EXEDY packaging for correct saquence to tighten bolts.

Never use air tools to torque down a clutch.

OR

Excessive wear on diaphragm tips and a highly glazed pressure plate casting.

CAUSE

Lack of free travel/bearing riding on diaphragm.

Driver resting foot on clutch pedal.

Quill shaft worn/bearing stuck on a worn spot and not returning to original position.

Clutch slave cylinder corroded or worn and piston not returning to allow free travel.

Stretched or sticky cable.

SOLUTION

Adjust free play in clutch to specification.

Driver education.

Replace quill shaft (gear box main drive nose cone).

Replace clutch slave cylinder and check pressure build up in clutch master cylinder.

Replace cable. (Do not re-oil old cable).

Rear main seal -- heated up the rear main seal casing with a hot air gun because it wouldn't go in @_@ even with a bunch of lube around it.

I have read that it is a good idea to use some good grease around the crank seal to help the run in. I however used motor oil.

The Mitsubishi manual uses a MD998011 to press fit the oil seal. I managed to find something of a similar diameter to press fit it in. But the housing did require heat.

Unfortunately i had to remove the housing off the block :( i couldn't get the seal out with it all fitted :(

 To make sure if was flush with the housing i used some wood and a rubber hammer to tap it flush.

Bolts are rated at 11NM. 

Tighten in a criss cross pattern and repeat

I always put extra 

I didn't take the oil pan off so i layered in on. Hope she well seal nicely. It looks messy because i didn't have the needle feeder thingy