Topic: 9 1/2 Johnson , Cylinder head – Antique Outboard Motor Club,Inc

This topic has 7 replies, 5 voices, and was last updated 5 years, 1 month ago by outbdnut2.

Viewing 8 posts - 1 through 8 (of 8 total)

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November 5, 2020 at 8:49 am #220161
GLENN HANKOSKY
Participant
Has anyone ever had to rethread the cylinder head for a sparkplug and if so what tool did you use?
November 5, 2020 at 9:18 am #220167
Mumbles
Participant
You’ll want to use the proper spark plug repair inserts made by Heli Coil. Not the wound wire inserts used for general thread repair. The spark plug inserts get swaged to the head so they can’t back out and a bit of red hi temp silicone is used in the installation to help transfer the heat and to seal them.
- This reply was modified 5 years, 1 month ago by Mumbles.
- This reply was modified 5 years, 1 month ago by Mumbles.
- This reply was modified 5 years, 1 month ago by Mumbles.
November 5, 2020 at 9:36 am #220174
GLENN HANKOSKY
Participant
Thank you for the quick response, is the correct kit that you sent as a screen shot?
November 5, 2020 at 3:07 pm #220180
Mumbles
Participant
A screenshot? No, those are photos of my personal tools.

Click on the following link and lots of options for purchasing them and how to videos will appear. I buy mine at my local auto supply though.

https://www.google.com/search?q=5334-14+save+a+thread&rlz=1C1NHXL_enCA682CA682&oq=5334-14&aqs=chrome.3.69i57j0j6j0l4.6478j0j15&sourceid=chrome&ie=UTF-8
November 5, 2020 at 4:04 pm #220183
crosbyman
Participant
Canada Member
just a word of caution make certain you use the proper lenght insert so it does not stick out and get hit by the piston.

I have used these and they work great by the way

Joining AOMCI has priviledges 🙂
November 7, 2020 at 8:23 pm #220330
need2fish
Participant
I have a 9.5/9.9 cylinder head just lounging around, waiting for an available cylinder block. PM me if you would like it.
November 11, 2020 at 11:01 am #220608
GLENN HANKOSKY
Participant
need2fish

I would be interested in purchasing this cylinder head, what price are you thinking of?

Glenn
November 11, 2020 at 1:02 pm #220611
outbdnut2
Participant
US Member
Napa has several size spark plug inserts at $8.99 for two. Link below.
Dave

https://www.napaonline.com/en/search?q=Nty%3D1%26N%3D2500001%2B2600108%2B2803910%26Score%3D0.9&referer=plp&partTypeName=Spark%20Plug%20Inserts&keywordInput=spark%20plug%20inserts&scene=partTypesScene3&fullyQualified=false
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