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MOKI RADIAL Care and Maintenence


Old 11-06-2019, 09:28 AM
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Originally Posted by GeorgiaFlyer View Post
What grease/oil are you using?
I use a heavy 85-140w gear oil and use a syringe to inject. The aim is to provide lube where the cams contact the solid lifters.
A heavy synthetic gear oil may be a better alternative ???
The 5 cylinder Moki has 2 cam rings (exhaust and Intake) with 2 cams each at 180 degrees apart.
When you check the valve lash at every 2nd rotation of the prop, you get a slightly different gap measurement.
There may be as much as .001" difference. Seems important to keep wear to a minimum.
Again - please accept my explanation as an unqualified mechanic and open to correction.
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Old 11-08-2019, 06:54 AM
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Tom Maxam check your PM please.
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Old 11-08-2019, 06:55 AM
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Way back in the darkness of this thread, I commented on the lube or lack of,on the cams in my 400.
I had pulled a couple of lifters on #1 cyl and they were dry and showing signs of wear! This is on a low time engine.

I took out a lifter that was just below the crankshaft centerline and through a top lifter I injected gear oil, (80-90 weight) until it ran out of the aformentioned lower lifter.

From then on, after a flight there was grease/oil residue around the lifters, so obviously receiving some lube.

I had the 400 in a 40% Waco and put many flights on it, it has been sold on and is currently living in Texas.

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