Author Topic: oil pump modification  (Read 4983 times)

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caferacer77

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oil pump modification
« on: May 05, 2008, 03:27:51 PM »
Is the stock oil pump enough to sustain a CB750 engine with an 836 kit and fitted with an oil cooler and a larger than stock oil bladder? or is there modifications that I should consider doing to the oil pump or oil passages?
thanks
f.

Offline kghost

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Re: oil pump modification
« Reply #1 on: May 05, 2008, 04:00:07 PM »
Mine does just fine....



As far as the bladder goes....its dry sump.

Size shouldn't affect it.
Stranger in a strange land

Offline pencil9

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Re: oil pump modification
« Reply #2 on: March 19, 2013, 09:06:41 AM »
We used to put a .030 washer between the relief valve spring and its end cap in the oil pump for a few extra pounds pressure.

Offline MCR

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Re: oil pump modification
« Reply #3 on: April 18, 2013, 03:35:23 PM »
Hello Lads,

Just joined your site and found this discussion thread, just the very question I have on my mind.
The reason I ask is because my overbored CB836cc with CR oil cooler has started to smoke like a B****d.

My concern is that the smoking is down to wet sumping due to fall back from the extended, external oil line from the return outlet to the oil cooler. I say concern, that would be the best scenario I think.

Either that or it's seepage from the valve seals.....although I did replace them in the rebuild.

Thoughts welcome...Cheers.