Im planning to heli coil the threads on my inlet manifold on my Stag. To
make sure the drill is perpendicular to the surface of the head, I plan to
have someone make me a 1 inch thick block and drill a perpendicular hole in
it. I plan to use this as a guide.
My issue is how to I make sure the Recoil brand of tap I have goes in
perpendicular to the hole in the cylinder head? Im not sure what a Heli
coil tap looks, like but the recoil brand does not have a long taper.
Should I make another 1 inch block with a hole, tap that first, and then
butt the 1 inch block up against the cylinder head and then tap the threads
in the head through the 1 inch block block? Is this part over kill?
Sujit
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Sujit Roy, Realtor
Cupertino, CA
(408) 839-8359
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