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10-10-2019, 07:07 PM | #1 |
Not Yet Wild
Join Date: Oct 2019
Posts: 18
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2 cycle 60 psi compression, Rebuild it?
Long story short i have a early 80s 2 cycle ez go. very slow to take up, and go up hills. I changed both clutches and the belt. Compression is at 60 psi, it does not smoke. The head was missing two head bolts. I checked the head gasket and added two bolts still at 60psi. Is there anything else i should check before i rebuild this engine?I sprayed starter fluid around the engine to to check for leaks and the engine did not rev up that i can tell. Also, is it better to just buy a over sized piston and rings and hone the cylinder or just buy a complete kit with the jug etc. I am new to golf carts but have rebuilt a lot of two stroke dirtbikes.
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10-10-2019, 07:08 PM | #2 |
Not Yet Wild
Join Date: Aug 2019
Posts: 26
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Re: 2 cycle 60 psi compression, Rebuild it?
Valve adjustment?
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10-10-2019, 07:43 PM | #3 |
Not Yet Wild
Join Date: Oct 2019
Posts: 18
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Re: 2 cycle 60 psi compression, Rebuild it?
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10-10-2019, 08:33 PM | #4 |
Gone Wild
Join Date: Sep 2017
Location: South Texas
Posts: 449
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Re: 2 cycle 60 psi compression, Rebuild it?
Reed valves... it’s a possibility if they’re really dirty and not functioning properly but more than likely time for new rings... not too big a deal if the cylinder is in generally good shape
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10-10-2019, 08:52 PM | #5 |
Vintage tech
Join Date: Sep 2009
Location: South
Posts: 3,215
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Re: 2 cycle 60 psi compression, Rebuild it?
No valve adjustment on the 2-strokers.
Time for a rebuild if compression is what you say. Its best with 120psi but they will run at 90 psi. Install two new crank seals while you have it on the workbench. |
10-10-2019, 09:04 PM | #6 |
Not Yet Wild
Join Date: Oct 2019
Posts: 18
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Re: 2 cycle 60 psi compression, Rebuild it?
I will check the reed valves, nothing would surprise me with this cart. I was really hoping I was losing compression where someone for some reason left tow head bolts out of the head.
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10-10-2019, 09:31 PM | #7 |
Not Yet Wild
Join Date: Oct 2019
Posts: 18
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Re: 2 cycle 60 psi compression, Rebuild it?
Mine is running with 60 psi which from what i have read shouldn't be happening, it starts right up and does't smoke which is also odd. I will take your advice on the crank seals! Thanks
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10-10-2019, 10:53 PM | #8 |
Gone Wild
Join Date: Jun 2017
Location: Savannah, GA
Posts: 6,539
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Re: 2 cycle 60 psi compression, Rebuild it?
Crank seals won’t affect the compression on those. You should replace them as long as you have it out though. When I rebuilt mine I got the whole cylinder as well as the piston and rings.
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10-10-2019, 11:16 PM | #9 |
Gone Wild
Join Date: Sep 2017
Location: South Texas
Posts: 449
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Re: 2 cycle 60 psi compression, Rebuild it?
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10-11-2019, 07:14 AM | #10 |
Vintage tech
Join Date: Sep 2009
Location: South
Posts: 3,215
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Re: 2 cycle 60 psi compression, Rebuild it?
I never said they affected compression. I was just reminding him to make sure he replaced them while the engine was out.
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Tags |
2 cycle, rebuild or replace, slow acceleration |
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