[Healeys] Thread Sealer/Locker

[Dave & M]

Hi Mike,

If any of the head stud tapped holes extend into the water jackets or
crankcase, they really should be sealed. Same with the rocker arm hold
down studs, water pump studs, etc. I use a light coat of Permatex
Aviation Sealer on the threads.

Even if the stud holes don't extend into the cavities, the sealer
provides good corrosion protection.

Screw the studs in lightly, finger tight or a little more. Make sure
that the edges of all stud holes are lightly chamfered so that a
raised thread doesn't prevent seating.

Dave Russell
BN2

rrengineer at dslextreme.com wrote:
 > I am getting ready to put the head on my BN2 engine and wondered if
 > any of you guys put anything on the threads of the head studs that
 > you screw into the block.  An engine builder friend of mine
 > recommended one of the Locktite thread locker products.  In the
 > past I have just put them in dry. Mike MacLean 56 BN2 60 AN5