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Old 09-03-2013, 01:54 AM   #1
CartRider01
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Default G16 compression test

I did a compression test on my new (to me) golf cart. Not sure if I'm doing it right but when I install the compression tester and hold the gas pedal it spins and the compression only comes up to about 60lbs. but if I stop and start the starter a couple 4-6 times I can get it up to 105lbs. Do I have 60lbs or 105lbs.

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Old 09-03-2013, 08:35 PM   #2
Mike Mac
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Default Re: G16 compression test

Suppose to hold throttle open, then 4 compression strokes with the starter. That's the correct way.
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Old 09-03-2013, 09:21 PM   #3
CartRider01
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Default Re: G16 compression test

to hold throttle open on a golf cart do you just hold the gass pedal down as it turns over? When I did the compression test I could hold the gas pedal down for a bit and it would't get any higher than 30-60lbs but if I bumped the starter it would go up to 105 forward and reverse....I think my compression tester is good? Thoughts?

Thanks
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Old 09-03-2013, 09:34 PM   #4
Mike Mac
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Default Re: G16 compression test

You have to perform the test the proper way to have a comparable base line reading. 285 cc motors are suppose to have 165/175 pounds compression when tested this way. A G16 motor, I don't know if its the same or not.
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Old 09-04-2013, 08:59 AM   #5
Flintrock
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Default Re: G16 compression test

G16 are the same, should be in the 155-175 range. Do the test at WOT like Mike suggests, but I would make sure the valves are set correctly first ( four thousandths cold). If it's still low squirt a little oil in the cylinder and re-test. If the compression comes up you know you need rings, if not you may have a stuck or bad valve.........
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Old 09-04-2013, 09:02 AM   #6
smallblock450sl
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Default Re: G16 compression test

Quote:
Originally Posted by Flintrock View Post
G16 are the same, should be in the 155-175 range. Do the test at WOT like Mike suggests, but I would make sure the valves are set correctly first ( four thousandths cold). If it's still low squirt a little oil in the cylinder a re-test. If the compression comes up you know you need rings, if not you may have a stuck or bad valve.........
That my freinds is advice you can take to the bank Thanks Flint!
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Old 12-24-2017, 03:46 PM   #7
chuck cook
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Default Re: G16 compression test

Quote:
Originally Posted by Flintrock View Post
G16 are the same, should be in the 155-175 range. Do the test at WOT like Mike suggests, but I would make sure the valves are set correctly first ( four thousandths cold). If it's still low squirt a little oil in the cylinder and re-test. If the compression comes up you know you need rings, if not you may have a stuck or bad valve.........
my 1999 g16 has 150 lbs of compression dry and 152 wet ,the place I bought it told me to check the compression when I complained about it "eating" fuelpumps (on # 4) in 18 months. It runs good and don't any oil , I'm thinking of putting an electric pump on it. any advice ?
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Old 12-25-2017, 11:28 AM   #8
mikeasis
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Default Re: G16 compression test

personally id just buy a good quality pump OE is best. No t a fan of the electric pump conversion but that's just me

cheap pump are just that cheap and wont last long.
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Old 12-25-2017, 11:42 AM   #9
Dave in VA
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Default Re: G16 compression test

The genuine Mikuni pump is probably your best bet...
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Old 12-25-2017, 05:26 PM   #10
cgtech
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Default Re: G16 compression test

Yep, factory fuel pumps very rarely give any trouble at all.
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