Honda Acura NSX 1991 Service Manual page 490

Valve Body
NOTE:
on the accumulator covers while unscrewing the bolts in a crisscross pattern.
1 . Remove the valve body in the following numbered sequence.
CAUTION:
Do not use a magnet to remove the check balls: it may magnetize the balls.
4 B o l t s
\
Replace. Q
Replace.
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