2002 merc 500 efi top end advice
#1
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Join Date: Mar 2011
Location: Milwaukee, WI
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2002 merc 500 efi top end advice
I am looking for advice on what to replace ie: springs/ valves or headwork on my 02 merc 500 efi's that have a little over 400 hours on them. Last time out I started hearing some pinging and minor backfire upon takeoff from one motor so i put it back on the trailer. I know that they are common for breaking valve springs so I am looking for advice on what new ones to replace and where the best place to get them. Also if there are any minor upgrades to do while they are apart. Any info is greatly appreciated. thanks, Justin
#3
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Replace valve springs and have guides checked for wear and replace where necessary.
Also have the ports cleaned up and make sure to have the injectors flowed and replace any that are out of range.
Also have the ports cleaned up and make sure to have the injectors flowed and replace any that are out of range.
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Head gaskets are most likely gone too.
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