Zraden
Seaman Apprentice
- Joined
- Mar 19, 2013
- Messages
- 42
OK...
So we can now add engine replacement to the long list of stuff I have had to
replace on this boat.
I hooked up the muffs to turn it over but I have no water pressure coming in from the drive.
I turned off the engine as soon as I knew the water wasn't coming in the engine which might have been
maybe 30 seconds. I pulled off all the hoses at the t-stat housing and they were bone dry.
There is no T-stat in the block if thats makes a difference.
I did not do the engine replacement but did rebuild it from the block up with all
my stuff off the old motor. It was running fine and I was definitely getting water pumped
through the unit and engine before I sent it off to replace the engine core but now nothing
.
The old engine never over heated on the muffs or on the water so I know it was getting cooling.
Plus when on the muffs.. I could see the water running through the system and exiting where it should
Things I have tried include a back flush through the intake on the engine and the
water flows no problem back through the intake on the lower unit where the muffs would go.
I also hooked up the hose to the thermostat housing and watched the water flow through and
back out where the water usually exits the unit when its working normally.
I totally filled the engine with water and then hooked up the muffs to see if the system needed bleeding
of sorts. That didn't work.
I checked for a kinked hose between the unit and through the transom.
I can feel the suction from the pump on the engine block.
The only thing left I can think of is the pump in the unit but why would it work so well before
I sent the boat in for a new block but not after??? They didn't separate the upper and lower unit
from what I know when they replaced the engine. Anything else I need to check for? Is there a 1 way valve between the unit and the engine that might have gone on backwards ?
Its a 4.3 with a Alpha one drive.
So we can now add engine replacement to the long list of stuff I have had to
replace on this boat.
I hooked up the muffs to turn it over but I have no water pressure coming in from the drive.
I turned off the engine as soon as I knew the water wasn't coming in the engine which might have been
maybe 30 seconds. I pulled off all the hoses at the t-stat housing and they were bone dry.
There is no T-stat in the block if thats makes a difference.
I did not do the engine replacement but did rebuild it from the block up with all
my stuff off the old motor. It was running fine and I was definitely getting water pumped
through the unit and engine before I sent it off to replace the engine core but now nothing
.The old engine never over heated on the muffs or on the water so I know it was getting cooling.
Plus when on the muffs.. I could see the water running through the system and exiting where it should
Things I have tried include a back flush through the intake on the engine and the
water flows no problem back through the intake on the lower unit where the muffs would go.
I also hooked up the hose to the thermostat housing and watched the water flow through and
back out where the water usually exits the unit when its working normally.
I totally filled the engine with water and then hooked up the muffs to see if the system needed bleeding
of sorts. That didn't work.
I checked for a kinked hose between the unit and through the transom.
I can feel the suction from the pump on the engine block.
The only thing left I can think of is the pump in the unit but why would it work so well before
I sent the boat in for a new block but not after??? They didn't separate the upper and lower unit
from what I know when they replaced the engine. Anything else I need to check for? Is there a 1 way valve between the unit and the engine that might have gone on backwards ?
Its a 4.3 with a Alpha one drive.
