Re: Oil Filter

Posted by sgtslag on Jan 27, 2012; 9:01pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Oil-Filter-tp3632141p3694537.html

I've seen those oil cooler sandwiches on e-Bay before, never knew where they came from.  The oil cooler sandwich pushes the filter housing out about 1", which means that the F's bolt is longer than the bolt used on the K model.  For reference:

http://www.bikebandit.com/houseofmotorcycles/1977-honda-cb750f/o/m9454#sch403072  (The F Model, Part #8)

http://www.bikebandit.com/houseofmotorcycles/1977-honda-cb750f/o/m9454#sch403067  (The F Model, no Oil Filter Boss shown, but looks like there might be one there -- you will need to check next time the filter is off)

http://www.bikebandit.com/houseofmotorcycles/1979-honda-cb750k/o/m2001#sch16784  (The K Model, Part #13, and #14 Oil Filter Boss)

The spin-on filter may, or may not, stick further forward, hitting the exhaust pipe -- it depends on what filter you install, and the thickness of the adapter plate.  The only requirement in choosing a spin-on filter, is that it have the correct screw threads, a diameter which allows it to seal against the adapter plate's smooth surface, and that it be able to withstand 72 PSI (unless the F model generates higher pressure?).  There is a variety of automotive (and some Honda M/C) filters which will fit, and work.  It does, however, require some research and measurements...  Cheers!