Some pages from the service manual. Again, I'd shy away from servicing this.
http://cjoint.com/11jn/AFfqwC87e41_33-36.pdf
http://cjoint.com/11jn/AFfqxyHefKn_43.pdf
http://cjoint.com/11jn/AFfqAOMXs0y_163.pdf
http://cjoint.com/11jn/AFfqAgNCE6y_161.pdf
http://cjoint.com/11jn/AFfqzIO574r_141.pdf
http://cjoint.com/11jn/AFfqzeUPBb9_111.pdf
http://cjoint.com/11jn/AFfqyGfAVbp_108.pdf
http://cjoint.com/11jn/AFfqx77ra8L_106.pdf