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Reviews (7)

18 Jun, 2020
Car engine repair
1 of 1 found this helpful Used this to repair a previously repaired plug thread (with helicoil) in a fully assembled RS2000 engine (alloy head).
Wasn't aware that someone had tried to previously repair the thread so initially tried a thread chaser... this dragged out the old helicoil.
Very easy to use and fit new insert despite plug threads being recessed inside cylinder head.
Was concerned about swarf dropping into the cylinder but put plenty of grease on the tap. Also put the piston at TDC and used an air gun with long nozzle inserted plug hole to blast any debris clear after spraying with brake cleaner.
Has a much more positive feel to the insert than a helicoil. Screwed the spark plug onto the insert first to fit, loctite on the insert and copper slip on the plug thread.
Was a little uncertain how much grunt to give on tightening but just used the same criteria for fitting a new plug.
All good so far but haven't had the need to remove the plug yet! Time will tell.

12 Sep, 2019
Great product
First time I’ve used a bluing product and very pleased with the results - does exactly what it says on the tin!

04 Oct, 2018
Fit and initial function great
Arrived promptly, fitted fine and initial indications are good (holds charge and charges correctly). Too early to rate the durability.