searay470
#1
Registered
Thread Starter
Join Date: Jul 2017
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
searay470
i have a 1980 searay flybridge cruiser with 2 mercury marine 470 both engines have less than 600 hours i have flushed every water hose on the system coolant an seawater also new pumps in the lower unit an new thermostats also cleaned the dual pass water coolers, i can run the engines at 2000 rmp an not have a heating up problem, if i push it up from there it will get hot, my question is who knows what i need to do to get it to run in normal heat range at higher rmp???
#3
Registered
Thread Starter
Join Date: Jul 2017
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
searay470
yes thankyou, what i have done with the hose from the transom is this i put a water hose in the transom water hose let it run water from inside or at the cooler it flow out of the prop in good flow also i sacrificed a pair of seawater pumps and had the lower units in some water with the hose unhooked from cooler then stared it to see how much water it was pumpin into the cooler the amount of water comin in was strong, so thats nall i know forsure on that