I have just done my S1 and someone local to me is going to do their XB9...
Will do a How To when I get a few minutes...
This is what you will need though:
1 11124
OIL SEAL
2 16800-84A GASKET, ROCKER BOX
1 25353-00YB GASKET, GEARCASE COVER
1 26391-06
GEAR,
OIL PUMP DRIVEBasic instructions....
You will need to get access to the rocker covers, I guess on an XB this will mean rotating the engine (not for the S1
). Take the exhaust headers off. Put the rear cylinder to TDC compression, whip off the rocker cover, then put the front cylinder at TDC compression, whip off that rocker cover, then drain the
oil, take the timing trigger and rotor off, pull off the cam chest cover, put the cams back in if they have fallen out, lock the gears, undo the 15/16 AF nut with a deep socket, pull the cam
drive gear out, then pull the
oil pump drive gear out, make sure the woodruff key is still there, then slide the new
gear in, put the cam
drive gear back on and do the nut up with some loctite to the correct torque (check the manual). It is a good idea to change the seal behind the timing cover whilst you are there. Then cobble it all back together using new gaskets and stuff.
Adam's How To for cutting down you cam cover tells you what you need to do to remove the cam chest cover, worth reading that. I am also told that BadWeb has lots of people that have changed the
gear....