Moteurs Baudouin 12M26 Series, Operation & Maintenance Manual

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Operation & Maintenance Manual for 12M26 Series Gas Engine
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bushing to prevent the spark plug bushing from turning and moving.
If the spark plug bushing has occurred when removing spark plug bushing, the spark plug must be
reset and rotate back to the initial state, and the ignition coil bushing clamp to verify whether meet
the installation torque (25~28N

m), complex tightly solid bolt after dismantled if did not meet the
requirements of installation torque.
If none of the above methods can be successful, the liner or cylinder head shall be replaced.
It is necessary to check the tightening torque regularly and decide whether to tighten it according to
the inspection result. The specific requirements are as follows:
For the newly launched vehicle, the first guarantee is check the tightening torque of the ignition coil
liner, and it needs to meet the requirements of (20 ~ 25) N

m. If it is not satisfied, it needs the
torque to be tightened. After the normal operation of the vehicle, the pressure plate bolts should be
checked and tightened during the first grade maintenance, and the requirements need to be
tightened.
The ignition system failure vehicle needs to check the ignition coil liner bolt tightening torque when
replacing the spark plug.
All complex tight operation should be in accordance with the following requirements standardize
operation: Firstly checking the spark plug twist moment whether meet the requirements (25 to 28)
N

m, and the spark plug should be tightened to the required torque range if not meet, and try to
ensure that the two bolt screwing in depth are equal,Checking whether lack of antifreeze, at the
same time also need to remove the spark plug again. Checking whether impurity or liquid inside the
cylinder, if not , installing the spark plugs accordance to specification.
As long as remove the clamp bolts to loosen bolts or other external forces of bolts should be
removed and the thread end daub glue in all operations, according to the requirements of the torque
range after screw down the bolt.
3. Cleaning of spark plug
Keep the spark plug dry and clean: Before installing, remove the stain or dirt on the ceramic body
with a clean cloth or facial tissue.
For stubborn rust or stain, you can gently polish away it with sandpaper.
4. Cleaning of spark plug wrench
When installing the spark plug, make sure that the wrench sleeve is clean and dry.
Before installing, remove the stain or dirt in the spark plug wrench sleeve with a clean cloth or
facial tissue! See the figure below.