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oil leak

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liquidsteel
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Joined: Sat Sep 05, 2015 7:30 pm

oil leak

Post by liquidsteel » Sun Jun 23, 2019 5:32 pm

Hello, I was wondering if anyone has an idea of what is causing oil to pool on the top of the cylinder head nuts?? I checked the torque on them and they are at 65 pounds.
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maritimeclassics
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Re: oil leak

Post by maritimeclassics » Mon Jun 24, 2019 8:18 am

Seems to be the head gasket problem.
Family member of Chris Craft founder
Owner of Maritime Classics
http://www.maritimeclassics.com
Ph# 231-486-6148

Restoration Projects:
1936 25' Gar Wood Custom
1947 Ventnor Hydroplane
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1929 26' Chris Craft Custom Runabout
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liquidsteel
Posts: 13
Joined: Sat Sep 05, 2015 7:30 pm

Re: oil leak

Post by liquidsteel » Mon Jun 24, 2019 8:30 am

Thank you for solving the mystery. I guess this is one of the reasons you keep a spare handy.

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maritimeclassics
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Re: oil leak

Post by maritimeclassics » Mon Jun 24, 2019 8:34 am

I would really look at the old gasket and see if it has any indications of why it happened. Also look at the block and the head to see what the deal is.
Family member of Chris Craft founder
Owner of Maritime Classics
http://www.maritimeclassics.com
Ph# 231-486-6148

Restoration Projects:
1936 25' Gar Wood Custom
1947 Ventnor Hydroplane
1957 17' Deluxe Runabout
1948 25' Chris Craft Sportsman Twin
1959 19' Sliver Arrow Hull #75
1929 26' Chris Craft Custom Runabout
1937 25' Chris Craft Custom Runabout

liquidsteel
Posts: 13
Joined: Sat Sep 05, 2015 7:30 pm

Re: oil leak

Post by liquidsteel » Mon Jun 24, 2019 8:44 am

ok, will do. Hopefully its just the gasket. I was told the motor is low time and it hadn't been used in awhile so maybe its from sitting??? Also is there anything i should coat the gasket with or just install it dry. Thanks in advance.

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maritimeclassics
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Location: Traverse City, Mi
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Re: oil leak

Post by maritimeclassics » Mon Jun 24, 2019 9:40 am

No it should be copper on both sides which is soft and helps seat the gasket. Also there is an up and down side to the gasket so you need to make sure its on right.
Family member of Chris Craft founder
Owner of Maritime Classics
http://www.maritimeclassics.com
Ph# 231-486-6148

Restoration Projects:
1936 25' Gar Wood Custom
1947 Ventnor Hydroplane
1957 17' Deluxe Runabout
1948 25' Chris Craft Sportsman Twin
1959 19' Sliver Arrow Hull #75
1929 26' Chris Craft Custom Runabout
1937 25' Chris Craft Custom Runabout

liquidsteel
Posts: 13
Joined: Sat Sep 05, 2015 7:30 pm

Re: oil leak

Post by liquidsteel » Mon Jun 24, 2019 10:22 am

OK thanks for the advice. There is no "this side up" on my replacement gasket. There is however one side that is smooth and the other side has ridges around the cylinder bore holes. I assume that the side with the ridges faces down and the smooth side is up??
I know assume can be a dangerous word so thanks for keeping me safe.

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