Mastercraft water hoses. Where do they go?!?! **Updated pics**

[ricwrocket86]

I have a 1990 Ski Brendella, same thing as a mastercraft stars and stripes. Inboard 351w. I bought the boat with a blow motor and halfway taken apart. Well, I replaced the motor and got everything back together except all the the 1" water hoses that connect to the mainfolds and secondary water pump. Can anybody explain to me where they go and how they are routed or show some pics of your inboard motor so I can figure it out. Thanks in advance.

I got it all figured out except the two outlets on the back of the manifolds. Do they loop together or am I missing something?

 

[Don S]

Re: Mastercraft water hoses. Where do they go?!?!

Re: Mastercraft water hoses. Where do they go?!?!

Post some pictures of your exhaust manifolds, the top of the engine and thermostat housing. I'm sure we can figure it out for you.

 

[Bondo]

Re: Mastercraft water hoses. Where do they go?!?!

Re: Mastercraft water hoses. Where do they go?!?!

or show some pics of your inboard motor so I can figure it out.

Ayuh,.... This'll be Alot easier if You post pictures of what you've got....






edit; Don,... You'd better hope I don't figure out how to type with More digits,....

 

[ricwrocket86]

Re: Mastercraft water hoses. Where do they go?!?!

Re: Mastercraft water hoses. Where do they go?!?!

lol I'll get some pics tomorrow

 

[ricwrocket86]

Re: Mastercraft water hoses. Where do they go?!?! **Updated pics**

Oh, and this used to have pleaseure craft manifolds but its the same setup. A 1" inlet pipe on both ends of the manifolds. I just cant figure out where the backs ones hook to?!?!

 

[Gary H NC]

Re: Mastercraft water hoses. Where do they go?!?! **Updated pics**

Now that you have pics up i'm sure someone will know.

I'm not familiar with that setup but on some Volvo 351 engines those rear fittings are capped off....

Hang in there someone will respond.

 

[frank246]

Re: Mastercraft water hoses. Where do they go?!?! **Updated pics**

On a 351 MerCruiser the back tubes are the feed tubes from the thermostat house, the front tubes run back up to the thermostat house and flow out together with the (hot) engine water to the manifold elbows.
Don`t the backside tubes on yours run (by a hose) to the elbows directly or.. the back tube is plugged off and by using the elbow to manifold gaskets with open water passages it becomes an overflow system.?

 

[ricwrocket86]

Re: Mastercraft water hoses. Where do they go?!?! **Updated pics**

Thanks for trying to help, but I really couldnt make sense out of what you where asking??

 

[Don S]

Re: Mastercraft water hoses. Where do they go?!?! **Updated pics**

Everything you have hooked up so far is correct. The opening on the back of the exhaust manifolds get capped. Both OMC and Volvo have caps for them.
The water flow then goes through the exhaust manifolds into the risers and out the exhaust. There shouldn't be any water hoses attached to the risers at all. Just the 3-4" exhaust hose that attaches from the riser to the exhaust tubes just to the right of the rear motor mounts shown in your last picture.