How to use a HELI Coil tool to repair a stripped thread.

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Originally Posted by mudnut

Good write up< TD. I recommend using anti seize on the bolt or stud that goes into the helicoil, because if the seize they will destroy the helicoil and make it very hard to repair.

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Excellent Idea as you have two dis-similar metals your bound to get electrolysis.
Never seize would be perfect
http://www.ebay.com.au/itm/161848123...%3AMEBIDX%3AIT

Is this an unusual thermostat housing? Most I recall seeing just have plain holes with the bolts screwing into threaded holes in the surface the housing mates to.

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Originally Posted by Cuppa

Is this an unusual thermostat housing? Most I recall seeing just have plain holes with the bolts screwing into threaded holes in the surface the housing mates to.

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Its off a ZD30 cuppa. it bolts up a real different way to how you would think.

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Originally Posted by Touses

Handy DIY that 3D. Does the helicoil require a bit of thread locker, as a just in case, for vibration?

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I always, well after it happened to me years ago when i didn't, I subsequently always put Loctite on the helicoil and anti-seize on the bolt.

Nothing is worse than trying to undo the bolt at a later date and realising the bloody helicoil is coming with it

Great invention, has probably saved many costly replacements.

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Originally Posted by Nightjar

Great invention, has probably saved many costly replacements.

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Somewhere,,, some one is sitting on a beach drinking a drink with an umbrella sticking out of it........lol

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Originally Posted by Cuppa

Is this an unusual thermostat housing? Most I recall seeing just have plain holes with the bolts screwing into threaded holes in the surface the housing mates to.

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The thermostat "housing" is part of the block say similar to a starter motor
The bolts go through the block and then screw onto the thermostat housing, LOL
Being dis-similar metals you're bound to get electrolysis and this is where the problem
begins, they bond together and thats that...lol

I think loctite 243 would be the go from memory not sure of the heat rating though.
Here's a pic of the thread once removed from the bolt lol

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Originally Posted by threedogs

Somewhere,,, some one is sitting on a beach drinking a drink with an umbrella sticking out of it........lol

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Me very soon :)

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Originally Posted by growler2058

Me very soon :)

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Oh shite is it that time of year already ????