I have a 90 (TRS) Top Gun and It has the brass style crank mounted sea water pump along with the G.M. water pump on the front of the motors. I want to remove the crank sea pump and the water pump on the motor and just go with standard Mercruiser sea water pumps and do a water crossover tube on the front of the motors...Is there any issue with cooling? I have seen several other Top Gun's running this set up but there are the Bravos .....just wondering if passing through the tranny robs it in any way.

thanks in advance....Joe

i have a 91 cafe w/ trs & have the same setup you want to use.

Perfect, I thought it would be plenty...just didnt want to find out the hardway. Thanks

bring your boat and a 5th of canadian mist to larry mac and he'll get it right.....

Your not right for that..... still funny as hell though

The setup will work but you will have to play with thermostats to get the right temps. You will need a bypass if you plan to use a stat. There's really no advantage using a crossover other than looks. You may also have pressure

You may also have high water pressure and will need gauges and possibly relief valves.

You dont have to worry about the bearing letting go in the water pump if you have a crossover.....and one less belt to change!

Thanks, I'm not running thermostats at all and the temps were fine with old set-ups .... I have not run thermostats on anything as of yet on any of my boats and never have had an issue. I live in Louisiana and the water temps here doesn't get cold enough to have a need for thermostats, and as far as me adding in the crossovers I just want to clean up the motor area some.... It's just me I cant leave anything along I guess.

i heard the water in the vinton drain ditch gets up to 99degrees in the summer...