Hi all.
I currently have a 3.7 (470). Is it right that the cooling system when hot is so pressurized.
Unlike a car, when the engine is running you can remove the filler cap no problem, When its not running the pressure builds I know, but with my engine you couldn't because you would get a face full of very hot water and steam. It seems to hold a lot of pressure even when running.
Nothing pushes past the cap and into the header tank, The cap is 13 lb rated as advised in the manual. Would it improve if I lowered the caps pressure rating?
Heat ex-changer. The boat doesn't overheat but does run hot, about 3/4 on the gauge when under load. It currently has the standard 3" heat ex-changer and I notice that there is an upgrade available to a 4", I guess because this is a common question.
Is it worth upgrading and would the engine run much cooler, like 1/2 on the gauge?
Regards
Burkstar
I currently have a 3.7 (470). Is it right that the cooling system when hot is so pressurized.
Unlike a car, when the engine is running you can remove the filler cap no problem, When its not running the pressure builds I know, but with my engine you couldn't because you would get a face full of very hot water and steam. It seems to hold a lot of pressure even when running.
Nothing pushes past the cap and into the header tank, The cap is 13 lb rated as advised in the manual. Would it improve if I lowered the caps pressure rating?
Heat ex-changer. The boat doesn't overheat but does run hot, about 3/4 on the gauge when under load. It currently has the standard 3" heat ex-changer and I notice that there is an upgrade available to a 4", I guess because this is a common question.
Is it worth upgrading and would the engine run much cooler, like 1/2 on the gauge?
Regards
Burkstar