Relief Valve; To Remove And To Fit - Perkins 1000 Series Workshop Manual

Relief valve

To remove and to fit

For four cylinder engines which have a balancer
unit have a relief valve fitted inside the balancer
frame. The relief valve of these engines cannot be
removed as an assembly.
1 Drain the lubricating oil and remove the sump,
operation 19A-03.
2 For four cylinder engines: Release the setscrew
and rotate the relief valve to withdraw the thimble
from the cylinder block (A1). Pull the relief valve
from the delivery pipe and pull the delivery pipe
from the oil pump. Renew the "O" rings (A2).
Lightly lubricate the "O" rings with clean engine
lubricating oil and push the delivery pipe into the oil
pump. Push the relief valve onto the delivery pipe
and fit the relief valve to the cylinder block; ensure
that the thimble is correctly fitted and tighten the
setscrew.
3 For six cylinder engines: Remove the setscrews
which fasten the cross flow pipe to the relief valve
(B2). The cross flow pipe is only fitted to engines
which have the oil filter on the right side of the
engine. Remove the flange joint. Release the two
setscrews (B1) which fasten the relief valve to the
cylinder block and remove the valve. Ensure that
the faces of the cross flow pipe and the relief valve
are clean. Put the valve in position, complete with a
new flange joint. Engage the four setscrews and
tighten the flange setscrews and then the valve
setscrews.
Perkins Phaser/1000 Series, April 1995
2
19A-08
1
2
LUBRICATION SYSTEM
1
19
PA237
PA238
19A.17