M 07.30 Cyl.-Head And Oil Supply Pipe - Hatz Diesel 1D30 S Workshop Manual

M 07.00 Cylinder head

M 07.30 Cyl.-head and oil supply pipe

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General:
1 D 60 - 80 only !
Due to variations in the depth of the steel
anchors in the crankcase in connection
with thread reach certain engines have
thinner washers fitted to the crankcase
front side.
It is of utmost importance to have the cor-
rect type washers fitted in the same posi-
tion as fitted ex-factory !
Preparations:
Ref.: M-Disassembly cross reference
scheme.
Dismantling:
– Remove rocker shaft and rockers.
1 D 30 - 31 - 35 - 40 - 41 - 50 only !
– Release and move circlips on protection
tubes for approx. 30 mm towards cyl.-
head.
– Unscrew cyl.-head screws 1 crosswise
and uniformly.
– Remove cyl.-head 3 together with oil
pressure pipe 4.
Be careful that the cyl.head screw seals
are not lost or become misplaced.
3
1D . . / 03.06
Inspection / repair:
– Check cyl.-head for broken cooling fins,
cracks or any other damage.
– Check valves for possible leakage.
– Check oil press.-pipe for free oil
passage.
Assembly:
– Replace cyl.-head screw seals (M 01.50)
– Retain cyl.-head gasket into cyl.-head,
using some grease.
Use one gasket only !
– Place pre-assembled oil pressure pipe 4
(spring side) into corresponding bore in
cyl.-head.
– Put cyl.-head together with oil presssure
pipe carefully onto cylinder, respectively
into bore in crankcase.
Ensure oil pressure pipe is properly
seated in the bore in crankcase !
– Place cyl.-head screws 1 with washers 2
as specified respectively fitted ex-factory.
Apply high-temp. lub.-grease as specified!
– Pre-tighten cyl.-head screws 1 crosswise
and uniformly.
– Line cyl.-head up to the best possible
vertical line up in connection with the
cylinder.
– Tighten cyl.-head crosswise and uni-
formly step by step.
Torque to specification !
– Finish assembly of protection tubes.
– Finish assembly of rockers and rocker
shaft.
– Adjust tappet clearance and check de-
compression device for function.