14mm Spark Plug thread repair using Time-Sert kit

How to use the Time-Sert kit #4412-321 to repair a 14mm spark plug hole thread. In this video I show you how on the Kawasaki KZ1000 Police P21 cylinder head. It is off the cylinder block so it's easier, but this kit is designed for use in situ when a spark plug thread is damaged but not completely obliterated. The tap self-aligns and allows a straight tapping operation so the hole is square.
00:00 Intro
01:07 Prepping the old threads
01:25 Discussing pros and cons
02:52 Showing the Time-Sert kit
04:35 Inserting the tap into existing threads
05:25 Driving the tap cutting new threads
06:31 Using the counterbore tool
09:03 Prepping new threads for insert
09:20 Going over instructions for insert
10:13 Installing insert
11:25 Using driver to install insert
12:39 Examining finished insert
12:54 Installing spark plug new threads
13:15 Looking at insert from inside
14:16 General discussion and points
15:21 Outro

[@henryhawk978]

Very informative video Tom. Enjoyed the video and RIDE SAFE OUT THERE!

[@cullercoatstunneloflove4307]

Great video, especially as I have some insert to do myself! The insert kit seems to be a quality kit! Thanks

[@stevensapyak7971]

5.24.23. TimeSerts™️ are the biz! …… Wise choice in deciding to installing in all four cylinders. I’ve used them on a GM 3400 V6 rocker arm bolts holes in the aluminum head, after they were stripped out while doing head gaskets and lower intake manifold gaskets, which these engines are famous for! Just a tip if you ever do GM 3100/3400 V6 motors, buy the Lisle 48000 rocker arm tool to relieve spring tension so you can pull the pushrods out in order to change out the lower intake, manifold, gaskets, or doing head gaskets pulling their heads! Saves having to pull the rocker arms off.

[@ipfreelynow]

Very good explanation and how too video it may come in handy some day.

[@wdhewson]

I wonder if there's something like a time-sert than would sleeve things down for a 12 or 10 mm thread diameter plug.
Some cars with bad plug threads will shoot the plug right through the hood like a rifled slug on the power stroke. I hate having my leg (and more sensitive parts) above the bike's spark plugs unless the threads are top notch!!!

[@MotoRestoFL]

Time-Sert makes repair kits for all common or standard sizes.

[@jvst20051]

Link to the kit and inserys please

[@MotoRestoFL]

time-serts.com/store/m14x125-washer-seat-spark-plug-repair-short-pn-4412-321/
That's the kit I have, Time-sert has numerous kits, several different 14mm configurations.

[@kjm-ch7jc]

Aluminium or Aluminum, metric or imperial?

[@MotoRestoFL]

All of the above. We don’t discriminate based upon material or measure units. Lol.