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Old 12-02-2019, 05:34 PM   #1
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Default spark plugs replacement 5.0

Has anyone replaced the plugs on a 5.0 mercrusier. I have a 23 SR bowrider and it seems like impossible to get to the plugs. Does anyone have any tips or a good video on how to get to them.

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Old 12-03-2019, 12:50 AM   #2
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The 5.0 and 5.7 are identical when it comes to this, I use a long extension on the spark plug socket and use a finger laying along the socket and protruding just beyond to feel for the plug then guide the socket on. It takes a few tries but works for me. Worst case is remove the exhaust manifolds to get access and this makes a good time to inspect the exhaust for corrosion.
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Old 12-03-2019, 03:15 PM   #3
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Quote:
Originally Posted by mmwjr View Post
I use a long extension on the spark plug socket and use a finger laying along the socket and protruding just beyond to feel for the plug then guide the socket on.
^^ +2

I also use a universal on the end just in case things are lined up perfectly.
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Old 12-06-2019, 03:23 PM   #4
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Thanks for your reply
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