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04-30-2022, 07:10 AM
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#1 |
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Junior Member
Join Date: Apr 2011
Location: Davis Oklahoma
Posts: 18
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Mercury crankshaft
Working on a 8BA found three of the four plugs you drive in the crankshaft was in the oil pan. I have threaded the holes with 3/8 NPT tap. My question is would you install aluminum or steel Allen headed plugs? The steel plugs weigh about 132 grains and the aluminum plugs weigh 64 grains.
Thanks in advance for your help and advice. |
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04-30-2022, 07:46 AM
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#2 |
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Senior Member
Join Date: Apr 2019
Location: Kansas
Posts: 1,229
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Re: Mercury crankshaft
I'd use the plugs closest in weight to the originals. Likely aluminum.
__________________
"It don't take but country smarts to solve the problem" (Smokey Yunick) '30 Model A Speedster '41 Merc Town Sedan / 260" 8CM engine '66 Fairlane four door / "warmed up"  302
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04-30-2022, 10:12 AM
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#3 |
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Senior Member
Join Date: May 2010
Location: Chester Vt
Posts: 8,985
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Re: Mercury crankshaft
Aluminum , closer to the original plugs.
Gramps |
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04-30-2022, 02:15 PM
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#4 |
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Senior Member
Join Date: May 2010
Location: Shenandoah Valley Virginia
Posts: 220
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Re: Mercury crankshaft
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