Thanks for diagram. On mine I have a small hose tail off the water inlet pipe section of the housing which has a hose to the fuel pump and from there to the right side elbow. I thought this was the only bypass. I will check for an internal one.
this is what I am hoping. Will check later today. I did inspect it and replace the thermostat but the I did not see any hidden passages. I will check again.
You are right the raw water pump feeds the thermostatic housing and it is turn has a hose to the circulating pump.
The hoses were in good condition and I have had a split and a popping off. I also think pressure but was wondering if the circulating pump was bad would you get some steam causing...
At about 1200 RPM after running for a few minutes I read the temperatures:
Bottom of Thermostat Housing 150-160F
Top of Thermostat housing 95F
Manifolds Left = 107F / Right =95F - when facing the belts
The small water line from the thermostatic housing inlet through the fuel pump to the riser...
Hi,
I am looking a bit of advise. I have a 2007 4.3 GXI with an SX-A leg. The boat was not used last season but at the start of last season had the exhaust bellows replaced and the impeller and belt replaced.
When I went to take it out this season the fist time it split the hose from the...
The Engine did not overheat, I was only out a few minutes and the temperature was sitting at 150F then I noticed it fell to 100F when I looked in the engine bay the hose was off with some water gushing - i was close to a pier so moored up and done a quick repair before coming back to the ramp at...
I took my boat out the other day and after a few minutes it blow the hose from the thermostat housing to the engine pump off. I have now removed the housing to check the thermostat and it seem ok. Holes are also ok. I was going to check risers and drained the manifold and block. No water came...
Hi,
Looking some advise. I have a VP 4.3 GXI with an SX-A leg. The boat runs great and idles fine but sometimes it will stall when changing from forward to neutral. It a real PITA when docking. Engine recently services, fuel pump cleaned - (its a little noisy but working fine)
Any ideas of...
Hi,
I have drained the Engine on my boat a few time now but I have came across differences in different engine manuals. In one there was a reference to draining the intake manifold. Should this be drained or will it drain when I have the other areas drained?
I have drained:
Block (2 sides)...
Hi,
I know there is a small drain hole in the lower section of my SX-m drive. However when reading a generic SX drive manual it discussed a water drain plug in the drive. I cannot find this and have assumed on the SX-M there is no drain plug, just the small drain hole, is this correct...
