How to use a HELI Coil tool to repair a stripped thread.
Welcome to the Nissan Patrol forum. To post a question and to see less adds on the forum then you will have to register
first. We are an easy going friendly forum so join in the conversations and feel free to ask any questions.
Become a forum sponsor for only $20 and see no adds with faster page loading times and many extras benefits.
How to use a HELI Coil tool to repair a stripped thread.
Hi all not sure if any of you are familiar with these thread repair tools.
Basically what Ill show is how to use it,,,, first I need to drill the thread out to a larger
hole,, the drill is provided,, Then tap a hole to suit the new thread,,,,then screw in the new thread
Ill do it bit by bit. These tools were very popular years ago with motor bikes
stripping the spark plug hole.
OK first is a view of the tool itself nothing to be scared of, its just
a drill, tap and a tool to insert the thread and the threads themselves
This is a permanent repair.
Forgot to mention, what Im repairing is two stripped holes on my
thermostat housing so I can return it to Mudski, the thread Ill repair
is 8mm x 1.25 some call it 8mm fine
Last edited by threedogs; 22nd April 2016 at 10:37 AM.
04 ST 3lt auto, not enough Mods to keep me happy, but getting there
Sorry about the pics , all done now all you need do is break the tag off the heli coil
so the thread is straight through
Bolts are straight just pic makes it look a bit off.
Now I can post it back to Mudski LOL
Last edited by threedogs; 22nd April 2016 at 11:16 AM.
04 ST 3lt auto, not enough Mods to keep me happy, but getting there
Good write up, TD. I recommend using anti seize on the bolt or stud that goes into the helicoil, because if they seize they will destroy the helicoil and make it very hard to repair.
Last edited by mudnut; 22nd April 2016 at 12:55 PM.