Topic: Oil leak from left cover on CB400f

[malcolmgb]

Got back from a run on my CB400f today and oil is leaking from the alternator cover, where the wiring loom comes out, I assume it is from the crank oil seal, will strip it out tomorrow to confirm. Is it possible to change the seal with engine in the frame or does the crankcase have to be split? Anything else that could cause a leak in this area?

[steven400/4]

i have new seal here if you need it mate

[malcolmgb]

Had a look today, there is nothing from the crank seal, maybe a little dampness from the oil passage plug, the leak I saw is from the oil pressure light switch.

[steven400/4]

i,ve got some pressure switches if you need one not new tho

[malcolmgb]

Thanks Steve, I've got a used one too will give it a try first. The failed one is leaking around plastic where the wire connector fits.

[steven400/4]

ok malc buzz me if you need one