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Old 08-16-2022, 10:34 AM
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John_M_
 
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Originally Posted by 1967brutus
Maybe it is in the oil I am using, r in the fact that all my engines were new when converted, but they all remained scaringly dry on top, and for me that never was a point of worry since ASP in their manual recommend that the owner lubricates the rockers manually every 2 hrs or so.
Since I don't like manual lubrication, I did the crankcase drain mod.

It works well, I see zero change in valve lash.
I bet, same running the boxer on the glow fuel with the 14% lite-techniplate oil mix... But the gas F-50 4 stroke was surprisingly dry as well with 5% oil mix... upper lube relies on the follower & guide clearances, their bronze, but the rocker shafts and pushrod ends receive very little oil residue.

Why not take advantage of the oil blowby from the crankcase breather and pass it through the rocker chest, if oiling is required.


Last edited by BarracudaHockey; 08-16-2022 at 04:05 PM. Reason: removed quoted deleted content