SOHC.co.uk Forums > CB350/400

Spark plug threads

<< < (3/3)

Trigger:
You need a high temp retainer. Something like loctite 638 10ml.. Can be had on ebay cheap because it is out date but, it doesn't go off until under pressure. I still use thread lock and retainer that i have had in liter bottles since the 90's

oldchuffer:
Thanks for the advice, will get some sorted.

oldchuffer:
Update: For the stripped thread i used a time-sert, (using a 12.3mm bit). I also used Loctite 638 on the outside of the time-sert. And it worked a treat. Thanks so much everyone for the advice, and thanks Trigger for the tip about 638.

McCabe-Thiele (Ted):

--- Quote from: oldchuffer on March 24, 2022, 08:31:13 PM ---Update: For the stripped thread i used a time-sert, (using a 12.3mm bit). I also used Loctite 638 on the outside of the time-sert. And it worked a treat. Thanks so much everyone for the advice, and thanks Trigger for the tip about 638.

--- End quote ---

I would replace the plug washers if you re-use the plugs - it should minimise any chance however remote of the insert coming out attached to the plug.

Maybe these inserts have improved over the decades and you will be okay, I did a service on a friends Carlton  and a Helicoil came out with the plug!

oldchuffer:
Yes i have new plugs Ted. I'm happy everything looks ok but of course I'll have to wait til i start it to see for sure. The head is back on now and the camshaft in.

Navigation

[0] Message Index

[*] Previous page