Topic: 1915 Evinrude (help) – Antique Outboard Motor Club,Inc

This topic has 9 replies, 8 voices, and was last updated 5 years, 4 months ago by BROOK E. NEWCOMB.

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February 8, 2020 at 3:18 pm #194294
Derek York
Participant
I’m 15 years old and just recently purchased a 1915 Evinrude row boat motor. Everything is complete exept for the spark plug. Does anyone know what size of spark plug is uses? Any advice would be great 🙂
February 8, 2020 at 5:07 pm #194296
green-thumbs
Participant
US MEMBER PAY BY CHECK
Many (if not most) early outboards used a common spark plug of the time as used on very popular automobile Model T Ford
Louis
edit…a quick check for Model T Ford spark plugs at Mac’s gives a
price range $4.95 to $38.99…I am fairly certain the Model T spark plugs are correct fit. The low price plugs will work as well as high price
spark plugs…difference is functional vs original look. Choose wisely.
Welcome to Antique Outboard hobby
I am corrected on the spark plug type
Both Model T Ford and Evinrude Row Boat Motor applications
use the same selection of spark plugs offered by Mac’s
Same plugs Same price.
Turst me on this BUT look it up on line to verify.
- This reply was modified 5 years, 4 months ago by green-thumbs.
- This reply was modified 5 years, 4 months ago by green-thumbs.
February 8, 2020 at 9:13 pm #194298
Tom
Participant
US Member
I don’t think a ’15 Evinrude uses a 1/2″ NPT plug. My ’13 uses a 7/8″ – 18 plug.

Tom
February 8, 2020 at 10:44 pm #194309
RICHARD A. WHITE
Participant
Lifetime Member
Tom would be correct on the proper size plug

http://www.richardsoutboardtools.com
classicomctools@gmail.com
February 8, 2020 at 11:35 pm #194313
joecb
Participant
US MEMBER PAY BY CHECK
Yes 7/8 – 18. And a good plug that is readily available is a Champion C4 /X3. That in fact is what is used in a Ford Model A , 1928 to 1931.
Look on Ebay or the antique Ford parts vendors , Mac’s or Snyder for a C4 or the modern equivalent… but a real C4 looks period correct.
Joe B
- This reply was modified 5 years, 4 months ago by joecb.
- This reply was modified 5 years, 4 months ago by joecb.
February 9, 2020 at 9:50 am #194323
2fast4me
Participant
I just had O’reileys auto parts order (2) 7/8-18 plugs. I wasn’t concerned with heat range because because i was going to put the grease gun on them. Less than $4.00 each.

2Fast4Me
- This reply was modified 5 years, 4 months ago by 2fast4me. Reason: Spel check
February 9, 2020 at 11:37 am #194331
green-thumbs
Participant
US MEMBER PAY BY CHECK
IF you are going to use grease gun technique to free a stuck piston
be very careful. BAD things can happen A fraction of a stroke beyond
where you should have quit will burst a cast iron cylinder.
Louis
February 9, 2020 at 9:59 pm #194402
Derek York
Participant
Okay thanks I appreciate it. I got a NOS plug ordered
February 9, 2020 at 10:05 pm #194404
wbeaton
Participant
What great first motor! It’s all downhill from here. Please post lots of photos and keep us updated on your progress.

Wayne
Upper Canada Chapter

uccaomci.com
February 10, 2020 at 5:56 am #194420
BROOK E. NEWCOMB
Participant
US Member
Good Morning Derek,
Congratulations on your Rowboat Motor purchase.
I certainly share Louis’s opinion using a grease gun.
There are certainly other techniques that are less risky
as rowboat motor cylinders are not always easy to
come by.

If I can be of any help please feel free to contact me.

Respectfully,

Brook E. Newcomb
Evinrude Rowboat Motor
Special Interest group
(508)-277-4448
benewcomb@hotmail.com
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