Ford F-750 Shop Manual

Section 3- Engine Removal and Installation
15
plat e. In stall the floor panel screws . In stall the bolts
securing the cross member support to the right and left
wheel
~ousing . In sta ll the eng i ne cover base plate
screws. In stall the sheet m eta l cover between the engin e
cover and dash panel. In sta ll the master brake cylinder
inspection plate.
In sta ll th e left floor plate. Conn ect the accelerator rod
and dimmer switc h. Position the ru bber mat over the
brake pedal opening , then install the peda l opening plate
and pad.
Fill the radiator. Rem ove the tape from the carbure-
tor air horn. Start the en gine and check for coolant and
oil leaks.
In sta ll the air cleaner to engine cover bracket , then
install the air cle a ner and tube. Install the operator's
seat and bracket .
4. INTAKE AND EXHAUST MANIFOLDS
Th e foll owing insp ection procedures are ap plicable to
new and u sed manifolds.
a. Cleaning and Inspection.
Re move the manifolds . W ash grease, oil, a nd dirt
from the outside of the manifold. Cle an the inside of the
man ifold with a round, bristle brush attached to a
flexible
wire handle. Dry with compressed air.
In spect t he mating flanges of the intake manifolds for
crac ks, nicks, burrs , or scratches. Check the flatness of
th ese surfaces as indicated in fig. 8. Check the fuel-air
passages
and the h eat riser for restrictions. Check the
manif old openings for proper alignme nt with their
resp ec tiv e cy lind er h ead ports. Impr ope r a li gnme nt may
result in a loss of power. Insp ect the entire manifold
for crac ks or visible casting defects which wou ld make
it unfit for further service .
In spect the exhaust manifold for burned out spots,
crack s, and /o r weak sections.
h. Repair s.
Dress nick ed or warpe d mating s urf aces on a s urf ace
plate. M inor nicks, burr s, or sc r atc h es may be removed
with a fil e.
Re
move all obstr u ctio ns fr om intake m anifold pas-
sages. R ep l ace c ra c ked or severely warped manifolds ,
a
nd those manifolds which contain unr emova ble
obstructions.
Replace defective exhau st manifolds.
CAUTION : R e mo ve all filings anel for eign matt er
that may ha ve e nt ered t.he m_ anijold a$ a r e$ ult of
re pair work.
6261
Fig. 8-Checking Flafness 01 fhe Infake Manilold
Mounting Flanges
5. ROCKER MECHANISM, CYLINDER HEAD, VALVES, VALVE LASH
ADJUSTMENT,
AND VALVE TIMING
This sectio n covers the inspe ction a nd repair proced-
ure s applicab le to the rocker mechanism , cylinder head ,
and va lves. In add ition, the methods u sed to ch eck va lve
timin g are given.
a. Rocker Mechanism.
( 1) CLEANING AND I NS PE C TIO N. Rem ove a nd
di sassemb le the rocker mechanism. Ch ec k the I. D . of
the rocker arm bore and the O. D. of the rocker arm
shaft, at the location of the rocker arms, against specifi-
cations. Make s
ur e th ese surfaces are free of scuff s,
scores, nicks, or scratches. Inspe ct the rock er arms for
grooved pad s. Check the rocker a djusting scr ews and
l ock nut s for stripped or broken threads, and th e ban
en d of the screw for nicks and scr atches. Mak e sure the
adjusting sc rew s turn fr ee ly in the roc ker arms.
In spect the l ocating springs for crac ks or other signs
of fai lur e.
In spect the oil drain tube for crac ks or sh arp bends.
Check the push rod s between ball and cup ce nt ers
wit h a dial indicator for conformance to specifications
(fig.
9). Check the ban end and sock et end of the push
rods for nick s, grooves, or roughness.
NOTE: A rou gh check for be nt push roels can be
made while th ey ar e in.talled in th e eng ine by rotat-

Ford F-750 Specifications

General

Brand	Ford
Model	F-750
Category	Automobile
Language	English