https://www.flickr.com/photos/126111508@N07/albums/72157671220350188/page1
Since I am not alone among the few Members who have been troubled with this very same problem... and conquered that sinking emotional feeling that comes with knowing it must be done... I'll help you with some additional guidance ...if I may:
(1)
Foremost in your Mind... before you begin this repair ...is to remember One Word:
PREPARATION
(2)
Prepare The Work Field—by obtaining the right kind and height of a
Foot Stand to elevate your position stable enough over the Engine Block to be able to stand and look right down inside of the involved Spark Plug Well. Doing this will increase your Mechanical Advantage over all of the tools you will be working with and ensure that your Tap and Thread work occurs at a Perfect Right Angle to the Spark Plug Hole.
(3
Prepare The Work Field-- by obtaining a large Pure White Cotton Terry Cloth Towel to lay around every other area of the top of the engine ...to Isolate the Spark Plug Well. In this manner... all of the Aluminum Sprue that you extricate with the
Time-Sert Tap can be wiped off at a distance...and prevent as much of the Aluminum Sprue from failing back down inside of the naked Cylinder/Piston Head Below or invade other open places on the Engine.
(4)
Prepare The Tools-- While The
Time-Sert Kit might seem like the Most Important Tool involved in this Repair
… it is NOT… The next Tool to obtain will be a
Proper Machinist Tap and Die Holder and NOT the inexpensive one from Harbor Freight or anywhere else. I have attached a link to my "Flickr-Bucket" so you can SEE this device In Action performing this very same type of repair, This Tool will properly HOLD the various Taps-Bits firmly enough NOT to allow any wobbly play once you begin to do the work. You will not regret the expense.
(5)
Protect the Piston and Cylinder-- The Piston Head must be put in a position lower than the
Time-Sert Drill Nose to avoid being Damaged. You will need to use a
Very Thick Grease applied to the flutes of the Tap in order to
Get the Aluminum Metal Chips, Shavings and Sprue to adhere to the Tool and avoid having this trash dropping down inside of the Cylinder. Work Slowly and ONLY MAKE TWO OR THREE TURNS AT A TIME before unwinding the Tap and
CLEANING OUT THAT CRAP WITH A FRESH WIPE RAG AND SOME SPRAY BRAKE CLEANER. Then re-apply Fresh Grease and carefully Re-Thread the Tool Tap down the hole to continue. THIS is the only way to ensure that all of the Aluminum Metal Trash will NOT drop inside of the Cylinder Head. Prepare the means to blow out the Spark Plug Well...Before… During and only Afterwards should you induce the Air Spray Tube down inside of the Cylinder to find and eject any particles of the Aluminum Metal left overs.
(6)
Prepare Yourself-- Double Check Your Instructions. The night before you perform this repair… Lay out these
Time-Sert Tools and with the Instructions at Hand… Practice going over what you intend to do for real. Walk everything through in Steps … and get familiar with all of them… this Repair is like nothing else you have ever worked with… So your Practice and Familiarity will Make for Perfection ...once you begin this work. READ OVER THE INSTRUCTIONS more than Once and when performed… your work results will be Amazing.
(7)
Have Confidence in The Outcome-- You have the support and understanding of all of the Members of GMT Nation behind you in this matter. As daunting as it might seem right now… This Elephant can easily be eaten… if you take it Only One Bite at a Time. Clear your Calendar and Turn Off your Cell Phone. Tell the Wife to take the Kids to a Friend’s house ..or wherever they can be happy and safe for the amount of time it takes to allow you to work
uninterrupted. Nosy Neighbors? Shine them on that you have “The
Spider Flu” .. or something dreadful like that ...scary enough to shoo them away. And unless you have a Sole, Trusted Friend to assist you possessed of enough Mechanical Chops and Know-How to Keep His Hands in his Pockets and his Mouth Shut once the Operation Begins… Then perform this work by yourself after you
Open Up a Fresh Can of PATIENCE... Then you are going to be
fine!
Please Visit and View ALL of the images at this link to see how the job gets done. While you will be working essentially blind in the Spark Plug Well… YOUR Tools will be a bit different for the Deep Well Access necessary here... but will also be much less cumbersome to use than the ones needed to perform an R&R of an Engine Block Bolt Hole.
https://www.flickr.com/photos/126111508@N07/albums/72157671220350188/page1
Good Luck, Brother!