Coolant leaking into spark plug wells in my 852 straight 8, non-supercharged.

mikespeed35
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18 May 2023 04:09 #47228 by mikespeed35

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Mike Huffman

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17 May 2023 17:24 #47223 by ilikescars

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Lammster1
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17 May 2023 00:30 #47217 by Lammster1

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14 May 2023 03:56 #47200 by mikespeed35

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Mike Huffman

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13 May 2023 02:32 #47196 by Lammster1

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13 May 2023 02:30 #47195 by Lammster1

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Curt Schulze
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12 May 2023 14:06 #47189 by Curt Schulze

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The bitterness of poor quality remains long after the sweetness of low price is forgotten.
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12 May 2023 03:46 - 12 May 2023 03:47 #47181 by mikespeed35

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Mike Huffman

Last edit: 12 May 2023 03:47 by mikespeed35.

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Lammster1
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11 May 2023 16:49 - 11 May 2023 17:00 #47177 by Lammster1

Coolant leaking into spark plug wells in my 852 straight 8, non-supercharged. was created by Lammster1

I am seeing a small amount of coolant in the wells of #1 and 2 spark plug after sitting. I do not see a crack in the head, and no obvious leaks in the head bolts. I don’t see any coolant at the hoses or thermostat connection I do see a bit of rust in the pipe plug by the thermostat, and one or two of the washers of the head bolts. Is this a a common problem?

What is the correct material for the pipe plug and sealant in the head? Is there a sealant or thread sealant for the head bolts that leaks and if so, what is procedure for removing head bolt and resealing? And what is the torque spec?
thanks in advance.
George Lamm

Last edit: 11 May 2023 17:00 by Lammster1. Reason: Add additional info.

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