I believe they are. Be careful with the compressed air, though -- it
will hold the valves closed in place, but once you knock one down
(open) far enough, the airflow won't push it back, and you might lose
enough pressure that some others fall, too, depending on your
compressor flow. Ask me how I know :)
--ts
former 78 GTV
On Nov 16, 2011, at 6:26 PM, George Beston wrote:
I plan to change valve springs on a 1750 engine without removing the
head.
I will be using compressed air to keep the valves shut during the
procedure,
but when it comes to this sort of work I want suspenders to go with
my belt.
One thought I had was to put a rare-earth magnet on the end of the
valve stem
during this procedure as a back up so that if my air pressure goes
away, the
valve can't drop into the cylinder.
However, I'm not sure that the valves are sufficiently magnetic for
this to
work, hence my question.
George Beston
Spider Jr.
Alfetta Berlina
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