Author Topic: The story of Zinc, and why SOHC4 engines need it in oil.  (Read 15278 times)

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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: The story of Zinc, and why SOHC4 engines need it in oil.
« Reply #100 on: July 31, 2018, 09:57:11 am »
Mark,

Have you tried Kenny's gaskets from CycleX? Coated metal. I just picked up a bunch as I needed a valve cover replacement.
Nope, haven't seen those in real life yet. If it's a head gasket, watch the thickness? Or, a base gasket, same thing...

Not sure about those Mark. These cover gaskets are unlike his MLS head and base coated gaskets. Thickness 1.2mm. Side Cover Gaskets: Alloy with Foamet coating is the same combination used to stop old Harleys from leaking.

Text pics coming.
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline mathias2803

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Re: The story of Zinc, and why SOHC4 engines need it in oil.
« Reply #101 on: April 05, 2019, 10:00:40 am »
Guess I will be returning the 4t 10-40 synthetic Racing oil I bought. On the back side it says adapted for clutch and transmission. API SM ma2.

These are the ones I have looked at for replacement:
« Last Edit: April 05, 2019, 02:30:12 pm by mathias2803 »

Offline Infest1382

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Re: The story of Zinc, and why SOHC4 engines need it in oil.
« Reply #102 on: May 09, 2019, 03:27:36 pm »
I run the cheap STP Zinc additive in all of my old machines. I wish more people did the same. Thereā€™d be a lot more on the road that way!

Offline HondaMan

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Re: The story of Zinc, and why SOHC4 engines need it in oil.
« Reply #103 on: May 09, 2019, 07:00:12 pm »
Guess I will be returning the 4t 10-40 synthetic Racing oil I bought. On the back side it says adapted for clutch and transmission. API SM ma2.

These are the ones I have looked at for replacement:


I don't know much about the bottom one, but it has the right 'base' (mineral) oil and weight for these Fours.
The demons are repulsed when a man does good. Use that.
Blood is thicker than water, but motor oil is thicker yet...so, don't mess with my SOHC4, or I might have to hurt you.
Hondaman's creed: "Bikers are family. Treat them accordingly."

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