Update on 350 mag overheating

[walleye seeker]

Ok here is my serial # OM360000 I put a bravo motor on a Alpha 1 gen 1 drive so i am overheating at idle speeds. I beleive its a 2003 (350 MAG MPI) 300 HP

Here is what i found i need part #864327 orifice and 864353 o-ring

Question these parts go in the tee below the thermostst housing do i need 1 each to go in bottom of tee or 2 each to go in right and left ports of tee.

Yes ecm was changed for shift interrupt ouch

 

[Bondo]

Re: Update on 350 mag overheating

Ayuh,... If this is an Update, you should link the thread your Updating,...
Just so We know what you're talkin' about...

Is this an Alpha 1, or Alpha Gen.II,..??

 

[walleye seeker]

Re: Update on 350 mag overheating

Ayuh,... If this is an Update, you should link the thread your Updating,...
Just so We know what you're talkin' about...

Is this an Alpha 1, or Alpha Gen.II,..??

Sorry i added alpha info I dont know how to link the post ???????

 

[Bondo]

Re: Update on 350 mag overheating

Ayuh,.. Then Yourself,+ Nauticool Both have the Same issue...

Bolt on a Bravo motor driven raw water pump,+ get on with it...
Your motors are Not adaptable to the check-ball T-Stat housing...

 

[walleye seeker]

Re: Update on 350 mag overheating

Ayuh,.. Then Yourself,+ Nauticool Both have the Same issue...

Bolt on a Bravo motor driven raw water pump,+ get on with it...
Your motors are Not adaptable to the check-ball T-Stat housing...

I have the raw water pump off the motor where would i draw the water in from ??? through the bottom of the boat is the only place i can think. Is there a device for such an application

 

[Bondo]

Re: Update on 350 mag overheating

through the bottom of the boat is the only place i can think. Is there a device for such an application

Ayuh,... It's called a Sea-****,...

 

[walleye seeker]

Re: Update on 350 mag overheating

Ayuh,... It's called a Sea-****,...

There is not room where the pump is suppose to go . Gonna have to find a different way. I think all i have to do is restrict the flow enough so the water is in the engine long enough to cool it. Like i stated earlier if you look at the mercury schematic it shows a oring and orifice in the tee under the thermostat housing. Wonder if it will work or is this only on a gen 2 drive

 

[Fun Times]

Re: Update on 350 mag overheating

Did you see this already?

The bulletin is cut in two parts, Here is the first half.
http://www.marinemechanic.com/site/PAGE260.htm

And here is the second half.
http://www.marinemechanic.com/site/PAGE261.htm

http://www.marinemechanic.com/site/page19.html

 

[Bondo]

Re: Update on 350 mag overheating

There is not room where the pump is suppose to go .

The sea-**** can be mounted ANYWHERE in the hull, as long as it's underwater All the time...

 

[fishinpa]

Re: Update on 350 mag overheating

Did you see this already?

The bulletin is cut in two parts, Here is the first half.
http://www.marinemechanic.com/site/PAGE260.htm

And here is the second half.
http://www.marinemechanic.com/site/PAGE261.htm

Is your link working ?
wont open here
says invalid !

fish

 

[Fun Times]

Re: Update on 350 mag overheating

Is your link working ?
wont open here
says invalid !

fish

Try them again I did an edit up there and reloaded them again.

 

[fishinpa]

Re: Update on 350 mag overheating

Yea now your active Boat Tech


fish

 

[walleye seeker]

Re: Update on 350 mag overheating

Yea now your active Boat Tech


fish

My thermostat housing is completely different so i dont think those links have anything to dy with my application ????????

 

[walleye seeker]

Re: Update on 350 mag overheating

The sea-**** can be mounted ANYWHERE in the hull, as long as it's underwater All the time...

I understand the sea **** but that is not the issue the pump itself wont fit hits the alluminum stringer motor sits to low ???

 

[Fun Times]

Re: Update on 350 mag overheating

Ok here is my serial # OM360000 I put a bravo motor on a Alpha 1 gen 1 drive so i am overheating at idle speeds. I beleive its a 2003 (350 MAG MPI) 300 HP

Here is what i found i need part #864327 orifice and 864353 o-ring

Question these parts go in the tee below the thermostst housing do i need 1 each to go in bottom of tee or 2 each to go in right and left ports of tee.

Yes ecm was changed for shift interrupt ouch

You have a (PM) from me about your serial number.

 

[nauticool]

Re: Update on 350 mag overheating

Hi,
Sorry I didnt reply sooner. It seems we have the same issues indeed.
I have ordered the parts i need to retro fit the belt driven pump. Will keep you posted with the results. Shame you cant fit one to yours. How are you getting on?

Glenn