Smokey Yanmar

[Tellie]

Originally Posted by never monday

3-5 min. not 10-15 min

clearer?

Yup got it, "for a few minutes " is 3-5 min. and "for a time " is 10-15 min
Understood loud and clear.
Silly me.

PS could you clarify a few other time frames that always had me confused..
How much is ...
1) a little bit longer
2) and its' cousin a wee bit longer

[Alan Wheeler]

It depends on a couple of things like what the size of the engine is, was it working really hard towing some big ship into dock and is it a turbo charger. A really big engine that is hard working is usually allowed to have a brief cool down period so as temperatures can even out. Otherwise all that heat trapped deep inside can cause the water to boil. Turbo's can be very hot. Although many are water cooled today. Air cooled can boil the oil and cause the bearing to gum up with varnish, so allowing the heat to dissipate before the oil is stopped flowing to it is a good idea. Because not everyone here has the same size boat and engine, the studyhall does need a little common sense in it's interpretation. I often see people let a diesel run after a work out for 15mins and longer. Not necessary and only detrimental. Not as bad as warming up slowly, but still not good all the same.