Marinediesel 5L V8, Руководство пользователя, Страница: 239 / 248

Owners Manual 237 Section 7 - Engine
Just pull the thermostats out, replace them and bolt it back up. The only seal that is vital
is the housing cover so it won't leak coolant.
Note of interest: Look at a thermostat carefully and you'll see a small bleed hole, which
would pass more coolant than any leak around the edge would. Why the small bleed
hole? This allows you to bleed the air from the cooling system without having to run the
engine up to temperature. This minimizes the danger that low coolant in the heads might
cause spot overheating
Check condition of coolant hoses
Check all coolant hoses for signs of wear of cracking, replace if needed.
Idle speed adjustment
There is an idle speed adjusting screw on the injection pump of the engine. This screw
can not be accessed when throttle position is idle so stop the engine and put throttle at
75-100% power; either via throttle leaver or manually on the pump as shown in the photo
below. This will then get you access to the idle adjustment screw, see circle below.
Adjust the screw and make sure you bring back the throttle to idle before starting the
engine. Check idle speed and adjust again if needed.