SF Uprated oil pumps

Allan R

Allan R

Senior member
Location
North Worcestershire
Does anyone have any experience of the uprated oil pumps, that Andy Wagner sells. Does the SF need a higher capacity pump, or is the standard unit sufficient.
Any comments welcome.
Cheers Al. 
 
The bike definitely would benefit from the bigger volume oil pump, more oil circulating must be better. Whether they need it is another matter.
EUR166 is a wad of cash. SFs do huge mileages and even race ok with the standard pump as long as it is within service tolerances.
I have Wagners big one in my racer. It handled a broken primary chain clouting it without problem.
My road SF2 has still the std pump, almost ordered the big one myself last week but argued myself out of it, using the money on higher priorities.
 
My understanding is that the problem is not with high mileages or racing, so much as sitting in traffic with the engine idling.  At idle for long periods of time the early pumps starve the top end of oil, leading to accelerated wear of cams, rockers and spindles.  If you spend a bit of time in trafffic or idling, the uprated pump is a very worthy purchase.

Cheers
Steve B
 
I've done tons of peak hour queue sitting both in the stinking hot tropics and the stinking hot 8) norwegian summer in Oslo.
A bigger pump could definitely help if not all the oilways are fully open. The studs at the top of the head. Poor fitting gaskets; my last base and head gskts from Germany needed opening at the oilways because they partially blocked them as they were tight on the studs and didn't properly match the holes from the crankcase. Then there is the clearance in the pump but mine is still perfecly ok. As everything is now copies of genuine it pays to check everything at assembly to make sure. Wear is more likely at startup after a long layup when all the oil has drained away both from the surfaces and the oilways.
 
the way those CBX motors are hung in the frame, makes me wonder how a CBX transplant into an SF frame would work, too wide and too low?
CLEM
 
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