GH F33 BDA
3.4.5.1 installation and deinstallation of cylinder head
For deinstallation of cylinder head, the spark plug connector and spark plug has to be
removed as mentioned before. Untie and turn off the eight cylinder head – clamping bolt by
hexagon head socket wrench. Mark position of the cylinder head. Take off cylinder head. For
installation according reverse succession. First put on cylinder head – clamping bolt slightly
than tie up crosswise with specified torque.
3.4.5.2 condition check of cylinder head
Check surface of cylinder head for spots where combustion gas is blown out. These spots can
be detected due to black smear on sealing surface and combustion sediments on the cooling
rib. Should there be such spots, renew cylinder head immediately. Check burning depression
of cylinder head for combustion sediments (carbonization). If there is a strong sediment
formation, remove carbon and change kind of oil possibly.
3.5 Trouble Shooting
3.5.1 Engine Does Not Start or is Difficult to Start
Cause: -Lack of fuel
Solution: -check that fuel switch is on
-check that fuel filter is clean
-check that fuel is in the tank
Cause: -Defective or discharged battery
Solution: -Replace battery
-Charge the battery
Cause: - lack of compression in cylinder, caused by:
Cause: - loose spark plug
Solution: -tight spark plug with alleged torque
Cause: - piston, piston ring, cylinder head, cylinder damaged
Solution: -send engine to Göbler-Hirthmotoren or any authorized supplier
Cause: - lack of ignition spark or weak ignition spark
Cause: - spark plug damaged
Solution: -renew spark plug
Cause: - spark plug connector damaged
Solution: -renew spark plug connector
Cause: - ignition system damaged
Solution: -send engine to Göbler-Hirthmotoren or any authorized supplier
Stand: 02.02.05 DOC_F33_B_E_0.01
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