Delkron 103" Hop Up Kit - Manual (Page 4)

CAUTIO !
Improperly tightened cylinder head bolts may result in gasket leaks, stud failure
and distortion of the cylinder head and/or cylinder.
F. Install a new rocker housing gasket on the cylinder head mating surface.
OTICE: If using OEM/ stock rocker boxes they must be modified to install the
breather channel using the enclosed template as described in the otice and Caution
sheet.
CAUTIO !
Because of high lift valve spring packs, clearance to rocker housings should be
checked. There should be .025 minimum clearance to spring retainers.
CAUTIO !
Be careful! Rocker housing to cylinder head gaskets can be installed upside down
and still have proper bolt hole alignment. An upside down gasket will result in an
open breather channel which will cause a major oil leak when the engine is started
and possibly engine and/or property damage.
G. Verify that the rocker housing gasket is correctly installed by noting that the
breather passage is concealed. Check hole alignment with cylinder head. With the
indent facing forward, place the rocker housing into position aligning the holes in
the housing with the holes in the gasket.
H. Apply a small amount of medium strength threadlocker 242/243 (blue) to the
threads of the six rocker housing bolts. Start the rocker housing bolts, two long
bolts on the left side of the engine, four intermediate bolts in the interior. Install
rocker arm support plate into rocker housing and start the four mounting bolts
(with flat washers). Two short bolts on the left side of engine, two long bolts on
the right. Alternately tighten the rocker housing bolts to 10-14 ft/lbs as shown in
the appropriate service manual.
I. Install new o-ring in the groove around the breather baffle hole in rocker housing.
A thin film of engine oil is recommended during installation.
J. Install pushrods and pushrod tubes as per service manual. Make sure o-rings are
in place and seated.
K. When installing the rocker arms for the cylinder being serviced, both lifters for
that cylinder should be on the heel (lowest position) of the cam.
L. Following the pattern shown in the appropriate service manual alternately tighten
each of the four rocker arm support mounting bolts until snug. Then following the
same numerical sequence; torque the bolts to 15-18 ft/lbs.
M. Verify that pushrods spin freely.