Oil on plugs

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Topic author
Will
Posts: 150
Joined: Wed Jan 09, 2019 5:58 pm
First Name: Will
Last Name: Copeland
* REQUIRED* Type and Year of Model Ts owned: 1915, 1919, 1923 TT
Location: Melbourne Florida
Board Member Since: 2001

Oil on plugs

Post by Will » Fri Aug 29, 2025 6:57 pm

Had a small show to go to today, I noticed some oil on my sparkplugs, Is this normal? The car does not smoke at all.
As Tom Sellick told Marston in the movie Quigley Down Under, I told you I dont have much use for handguns, I never said I didn't know how to use them!


speedytinc
Posts: 4850
Joined: Fri Feb 12, 2021 12:24 pm
First Name: john
Last Name: karvaly
* REQUIRED* Type and Year of Model Ts owned: 14/15 wide track roadster. 23 touring, 27 roadster pickup, 20ish rajo touring
Location: orange, ca
Board Member Since: 2020

Re: Oil on plugs

Post by speedytinc » Fri Aug 29, 2025 6:58 pm

Oil on the outside of the plugs or inside around the electrode?


Topic author
Will
Posts: 150
Joined: Wed Jan 09, 2019 5:58 pm
First Name: Will
Last Name: Copeland
* REQUIRED* Type and Year of Model Ts owned: 1915, 1919, 1923 TT
Location: Melbourne Florida
Board Member Since: 2001

Re: Oil on plugs

Post by Will » Fri Aug 29, 2025 7:20 pm

John, On the outside of the plugs
As Tom Sellick told Marston in the movie Quigley Down Under, I told you I dont have much use for handguns, I never said I didn't know how to use them!


speedytinc
Posts: 4850
Joined: Fri Feb 12, 2021 12:24 pm
First Name: john
Last Name: karvaly
* REQUIRED* Type and Year of Model Ts owned: 14/15 wide track roadster. 23 touring, 27 roadster pickup, 20ish rajo touring
Location: orange, ca
Board Member Since: 2020

Re: Oil on plugs

Post by speedytinc » Fri Aug 29, 2025 8:06 pm

Leaking around the threads or from the crimp of the base to porcelain? Its a mix of fuel & oil before combustion.
Threads can be sealed with a bit of anti seize. I prefer the conductive stuff. Mine is aluminum based.
There is a copper version also.

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