Piston Cooling Jets; To Remove And To Fit; To Check The Jet Alignment - Perkins 1000 Series Workshop Manual

13
PISTON AND CONNECTING ROD ASSEMBLIES

Piston cooling jets

To remove and to fit

To remove
Release the valve assembly and remove the piston
cooling jet assembly (A).
Note: The crankshaft is removed in A to show
clearly the piston cooling jet.
To fit
1 Check that the ball moves freely against spring
pressure in the valve assembly and that the jet tube
is not damaged. Renew the valve assembly and/or
the body as necessary.
2 Fit the piston cooling jet; ensure that the
assembly is fitted correctly on the dowel in the
cylinder block. Tighten the valve assembly to
20 Nm (15 lbf ft) 2,0 kgf m.

To check the jet alignment

Insert a 1,70 mm (0.067 in) diameter rod, of
suitable length, into the jet. If a suitable rod is not
available, reduce the end of a thicker rod to
1,70 mm (0.067 in) diameter for a length of
16,00 mm (0.630 in). When the rod is inserted into
the jet it must extend out of the top of the cylinder
within the area shown in B.
13A.14
13A-09
13A-10
1
33mm
(1.3in)
14mm
(0.5in)
Perkins Phaser/1000 Series, April 1995
PA089
21mm
(0.8in)
PA090