SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: 79 ranger jet on July 06, 2016, 02:57:14 PM
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Boat runs great at any rpm upto 4 grand but once I start hammering on it past that the temp jumps way up gets super hot, inlet valve is all the way open and the outlet is about half I have slowed and opened and doesn't change the problem any advise would be appreciated
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Boat runs great at any rpm upto 4 grand but once I start hammering on it past that the temp jumps way up gets super hot, inlet valve is all the way open and the outlet is about half I have slowed and opened and doesn't change the problem any advise would be appreciated
Sounds like the motor is full of crap/sand.
What is this outlet valve you speak of?
GT
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Motor has only been in the boat for a season with very little run time and I have a valve that comes to control how fast the water exits the motor
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Try the outlet fully open and the intake 3/4 open
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Ok I will try that I had a another motor in the boat and exact same thing was happening to it I was thinking maybe the impeller could be bad maybe
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Check to make sure you dont have sand filling the block also
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Motor has only been in the boat for a season with very little run time and I have a valve that comes to control how fast the water exits the motor
Throw that outlet valve in the trash.
What pump?
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Berk jg
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No a 12jb
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No a 12jb
How is plumbed? Please include hose sizes.
GT
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It has a 1/2 pipe that comes off the jet to a valve then 5/8 hose to the basset t then that goes up to the plate and then I have 2 lines that comes off thermostat housing both 5/8 one line has a valve for the headers and the other goes to the valve out the back of the boat
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Pics???
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It's actually just a hollow tee that goes to motor water plate
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It has a 1/2 pipe that comes off the jet to a valve then 5/8 hose to the basset t then that goes up to the plate and then I have 2 lines that comes off thermostat housing both 5/8 one line has a valve for the headers and the other goes to the valve out the back of the boat
Bassett tee sounds incorrect.
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It's not I thought it was it actually says Panther on it
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Pics???
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Little hard for pics my lines run under the motor
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Here are pics 1st one is inlet 2nd is the plates from t 3rd is housing 4th in back is the truck from inlet to plate front is the headers and 5th is the outlet
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Run water through it and take the hoses off at the front, start trouble shooting where you are having the water flow problem, if all the hoses that lead to the motor are flowing good, then it's in the block for sure, Pop out your freeze plugs and flush out the sand, hope you get it figured out man
Teamwindle🚤🇺🇸
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First off id get rid of the old school valve at the pump you cant control the water coming in with that valve
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Why are there so many valves? Leave the gate valve, it's fine, pull the piping apart at the pump and check it for rust /debris.
Lose the valve on the dump, I still think you have something funky with the header valve, hard to tell from the pictures.
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Just to be sure, when it's running, was there water coming out of the dump line and headers? What was the stream like out of the dump line?
Did the stream change when you opened the dump valve?
Are these the same water lines and fittings you had on your old motor?
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Just to be sure, when it's running, was there water coming out of the dump line and headers? What was the stream like out of the dump line?
Did the stream change when you opened the dump valve?
Are these the same water lines and fittings you had on your old motor?
I ran water straight thru motor and it seems everything flows fine
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In the picture that shows a yellow handled valve and a tee. Is that the tee to the headers or the inlet plates on the motor?
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In the picture that shows a yellow handled valve and a tee. Is that the tee to the headers or the inlet plates on the motor?
That goes to the headers
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That goes to the headers
ok. Is it possible that your gate valve by the pump is not opening all the way? Have you looked at that tee for the motor to see if it is an open tee. I am only asking because you said the last motor did the same thing. Especially if you reused the same components over on this motor. That would lead me to believe that one of the components is faulty. What motor are you running?
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ok. Is it possible that your gate valve by the pump is not opening all the way? Have you looked at that tee for the motor to see if it is an open tee. I am only asking because you said the last motor did the same thing. Especially if you reused the same components over on this motor. That would lead me to believe that one of the components is faulty. What motor are you running?
I did check the gate valve and the tee is open everything originally came out of a ranger jet with a Panther and worked great so transferred all lines as is into the Rogers hull with the Berkeley, motor is a 460
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I did check the gate valve and the tee is open everything originally came out of a ranger jet with a Panther and worked great so transferred all lines as is into the Rogers hull with the Berkeley, motor is a 460
I am gonna throw this out there. I don't know anything about who or when your engine was rebuild or if this problem has been from new on or just started but food for thought I guess.
If one of the head gaskets was put on backwards it will cause the engine to overheat. In a vehicle you will notice some overheating right away but with how these motors are cooled you may not notice it until a heavier load is placed on the engine.
When the head gaskets are installed correctly a corner of the head gasket should be exposed at each head lower front corner.
Again just food for thought I guess.
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You can see both tabs sticking out front of heads
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The only other odd thing I have come across is a hose having a dam in it. Spent 2 days tracking down the problem only to find out that the hose didn't dam up until it was under greater flow. Just another idea.
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The only other odd thing I have come across is a hose having a dam in it. Spent 2 days tracking down the problem only to find out that the hose didn't dam up until it was under greater flow. Just another idea.
I was thinking along these lines as well. May have a line coming apart or collapsing under pressure. Some of these older hoses could have an internal failure if they were ever kinked moving from one boat to another.
I'd replace the entire cooling system, lines, tee and all. It's so cheap $$ and should've been done when the new motor went in.
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Could this bowl and impeller be causing my issues
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Could this bowl and impeller be causing my issues
Holy Hammered stuff Batman.
It's surely not helping things.
I assume you pulled the nut?
Get the impeller off and check the port in the suction housing and wear ring clearance.
You need a wear ring, impeller, bearing, seals and packing minimum.
GT
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Holy Hammered stuff Batman.
It's surely not helping things.
I assume you pulled the nut?
Get the impeller off and check the port in the suction housing and wear ring clearance.
You need a wear ring, impeller, bearing, seals and packing minimum.
GT
I was afraid of that
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Holy Hammered stuff Batman.
It's surely not helping things.
I assume you pulled the nut?
Get the impeller off and check the port in the suction housing and wear ring clearance.
You need a wear ring, impeller, bearing, seals and packing minimum.
GT
Will I be able to reuse the bowl
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Will I be able to reuse the bowl
You could likely clean that up and use it, what bowl is it? JG or JC? One piece or split?
I have a few one piece here. An impeller too.
GT
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It's a JB split bowl