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01-30-2018, 01:38 PM
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#1 |
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Not Yet Wild
Join Date: Sep 2015
Posts: 21
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82 Marathon - EC25-2PG Blown cylinder head
1982 MarathonBack story: Cart backfiring - slowly losing power - stopped - very low compression. So with lots of troubleshooting that got me nowhere i pulled the engine and stripped it down. Geez. It blew one of the cylinder head bolts out and cracked the threads holding it on. Apparently these are very hard if not impossible to get? Everything else seems fine.. other than some scorched gaskets but no scoring of piston or cylinder walls
So i guess i am looking for suggestions in what to do ? Is there a modern replacement engine that i can just swap out (EC25-2PG)? Or should i just scrap the cart and start new with something else? Any suggestions, thoughts or concerns are greatly appreciated. Feeling pretty bummed out..  Beav |
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01-30-2018, 11:09 PM
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#2 |
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Not Yet Wild
Join Date: May 2017
Posts: 9
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Re: 82 Marathon - EC25-2PG Blown cylinder head
Which part are you saying is hard to find? The cylinder head or the bolt? Both can be found at a golf cart parts sites.
As for replacement. Unless you put another 2 stroke in its place, you will lose reverse. My advice is to rebuild it. |
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01-30-2018, 11:55 PM
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#3 |
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Gone Wild
 Join Date: Jan 2017
Location: Miami, FL
Posts: 1,061
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Re: 82 Marathon - EC25-2PG Blown cylinder head
Did it crack the cylinder where the bolt screws in or just strip it out? If it just stripped/pulled the threads out, helicoil to the rescue. Can you post some pics?
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01-31-2018, 07:54 PM
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#4 |
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Not Yet Wild
Join Date: Sep 2015
Posts: 21
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Re: 82 Marathon - EC25-2PG Blown cylinder head
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01-31-2018, 07:56 PM
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#5 |
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Not Yet Wild
Join Date: Sep 2015
Posts: 21
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Re: 82 Marathon - EC25-2PG Blown cylinder head
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01-31-2018, 08:03 PM
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#6 |
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Not Yet Wild
Join Date: Sep 2015
Posts: 21
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Re: 82 Marathon - EC25-2PG Blown cylinder head
GUEss i could grind off the rest of it and use spacers/ washers to build it back up?
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01-31-2018, 11:15 PM
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#7 |
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Not Yet Wild
Join Date: May 2017
Posts: 9
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Re: 82 Marathon - EC25-2PG Blown cylinder head
Would more than likely be your best option. I have seen some on flea bay, but who knows what condition they are in. And the prices I've seen anywhere from 40 to 150. So....
But let us know how it turns out. Possibly take it to a machine shop?? Or find a donor cart? |
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