mudplugger said:
i havent had the engine apart so dont know the answer, also not familiar with this area. will consult a manual and try and find out. thanks.
Just caught this thread - I've been away for some time and am catching up on past threads.
You should be able to unscrew the elbow from the crankcase and see the timed breather valve inside, if you are not sure if it was installed. The end of the camshaft should be a bit shiny, and the timed breather is dark. So if you see shiny, you'll need to split the case to fit a timed breather.
The breather pipe (hose) should go from the elbow up to the oil tank. The vent should go from the oil tank, under the mudguard (fender) and end just past the end of the mudguard under the license plate. The December, 2008 of 'Classic Bike' has a P11A on the cover, and one can clearly see the vent coming out from under the left side of the mudguard.
I used rubber-coated clamps to secure the vent, using the same bolts that hold the mudguard in place. There were a few different oil tanks, seats and mudguards, so routing of this vent may vary a little bit, but can be sorted with a bit of logic.
If you go here:
http://archives.jampot.dk/Book/Spar...Norton_88SS_650SS_650-99_Atlas_G15P_G15CS.pdf and look at page 4, the timed breather assembly is shown - parts 82,83,and 84. (fixed plate, rotating plate, and spring)