In a message dated 10/16/2009 7:42:02 P.M. Eastern Daylight Time,
rnbmail@yahoo.com writes:
Curt, As you seem so sure - WHERE will mine crack???? What will the
warning
signs be?????
------------------------------------------
Now don't get upset Robert--Curt could be wrong and your head might never
crack, though the fact that at least two suppliers have gone to all the
trouble and development expense to make and market aftermarket aluminum heads
for a car which had a total production run of only 15,000 units, (I am now
including only the BN1-BN2 Healeys, not Austin applications) perhaps only
50% of which are still on the road, does say mouthfuls....
Most 100 heads crack between 2 and 3. The warning signs might be seepage
under the head. Or you could simply blow a head gasket: perhaps a loud
moise, steam out the exhaust, immediate overheating, no power. It will be
apparent that something radical is wrong!.
My 100's head cracked between 1 and 2--in my case I think it was more a
matter metal erosion caused by some predetonation and assisted by some head
warping as there was a definite lack of metal across the rather narrow
bridge. It was not so much a crack as a piece of metal missing that blew the
gasket out. I was about 1500 miles from home and luckilyh found a good welder
who built the metal back up with nickle rods, and after I had the head
skimmed I made it back home, but I felt the handwriting was on the wall and
bought a DW stage 2 head and matching tubular exhaust.
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