Re: MCI engine
The pump itself is usually fine, its the plate that holds it all on that usually needs replacing. I fit the older pre mci plate and usually solves it. O ring selection is also critical. too fat and it will not pull the oil up to the basically rubbish cam oiling system. I still think the pre MCI should be available, even if it was cloned or built under licence by a reputable overseas manufacturer. About the only thing preventing continued use of the older engine is lack of reliable ignition parts.
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