U s i n g chain hoist (1), put cylinder head (2) with air line still hooked up into
t a n k of water (3) heated to 120°F.
If cylinder head (2) leaks, air bubbles will be seen
c o m i n g out of cylinder head when it is under water.
C h e c k that cylinder head (2) does not leak. If leaks come from expansion
p l u g s in cylinder head, take out leaking expansion plugs and put in new
o n e s . Refer to para 4-19a. If leaks come from any other place, get a new
U s i n g chain hoist (1), lift cylinder head (2) out of tank of water (3). Take
o f f air line (4). Unscrew and take out air line adapter (5) and put in pipe
GO TO FRAME 5