07-19-2015, 07:07 PM | #1 |
Not Yet Wild
Join Date: Jul 2015
Location: Pittsburgh
Posts: 4
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Crank case
Hello. New with the brake down with a golf cart. I have a 1990 ezgo marathon gx4444 2 cycle.
I had to removed the jug to get to the gasket due to a blown gasket. I have noticed that the crank case had just a spit on oil in the case. I know from a car there is oil that is cover the crank rod. Do I need to add oil and how much? |
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07-19-2015, 07:18 PM | #2 |
Getting Wild
Join Date: Dec 2012
Posts: 126
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Re: Crank case
no crankcase oil for 2 cycle engines. two cycle oil mixed with gas oils the engine rotating parts.
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07-19-2015, 09:57 PM | #3 |
Not Yet Wild
Join Date: Jul 2015
Location: Pittsburgh
Posts: 4
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Re: Crank case
if there is no oil in crank case, what lubes the crank bearing? wouldn't cause problems?
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07-20-2015, 09:06 AM | #4 |
Gone Wild
Join Date: Feb 2011
Posts: 1,515
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Re: Crank case
Gas & Oil mixture!! 1oz. per gallon of gas or 128:1 ratio.
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07-20-2015, 04:57 PM | #5 |
Not Yet Wild
Join Date: Jul 2015
Location: Pittsburgh
Posts: 4
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Re: Crank case
thanks. like i said before, i work on cars not golf carts. but i have torn down other 2 cycle engines that wasn't gas and oil mix before. no that I have the piston and jug off cleaned, I need to what size I should bore out the .25mm oversize piston. If i have measured it right the jug is 2.281mm. Any Idea?
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07-21-2015, 06:46 AM | #6 |
Gone Wild
Join Date: Feb 2011
Posts: 1,515
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Re: Crank case
Piston to bore clearance >.0023 TO .0036 in.
Ring end gap .008 TO .016 in. I'd go .010/.012 |
07-21-2015, 12:39 PM | #7 |
Getting Wild
Join Date: Jun 2015
Location: Mn.
Posts: 98
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Re: Crank case
I would buy the piston first then bore to the clarence listed above measure the cylinder first to see how much wear first from top to bottom and at 90 degrees on each level for out of round
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10-19-2015, 03:06 PM | #8 |
Not Yet Wild
Join Date: Jul 2015
Location: Pittsburgh
Posts: 4
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Re: Crank case
Hello. Sorry for the delay. The guy from the machine shop asked me for the standard bore size. Does any one knows?
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