The exhaust elbow
is about 20 years old, and albeit the engine
has mostly been used in fresh water
, I am suspecting it is fairly corroded. I would like to inspect it.
Also, last season, thermostat was locked in the open position, so the engine
runs for about a 100 hours at lower temp, around 65c rather than 82-85c. This is resulting in incomplete combustion, so more residues have probably accumulated into the elbow
Because the space in the engine locker is so tight, I cannot fit a proper metric 12 wrench to unscrew the 4 nuts attaching the exhaust
pipe elbow on the Md2030B. Especially, the 4 o'clock nut is unreachable.
I am thinking as an alternate solution to rather remove the heat exchanger
housing where the elbow is attached. This will eventually get me access to the elbow. I can then work
on a bench with much more space.
Here is an exploded view of the parts
, where elbow is part #11, and housing is part #6
Did someone already did that ? Is this easy to do ? Do you have any hint ?