Marcaronio
Cadet
- Joined
- Jun 23, 2011
- Messages
- 26
In the instructions to tune-up my motor I am following it says, "You should also be able to touch the cylinder head and crankcase with your fingers and not get burnt." This is not the case for me. I just replaced the impeller and cleaned out the water passages throughout the entire motor and I can see water coming out of the exhaust when it is running now so I know that the impeller is working. I am worried that the water is not taking it's full path through the engine and is leaking into the exhaust before getting to the head.
I'm as new as new can be to engines let alone diagnosing problems, however, I started thinking it through and here is what I can think to check:
1. Check for leaks or blockage in the pipe leading from the impeller housing to the powerhead to lower unit gasket.
2. Check for leaks or breakage between the water path and exhaust in the powerhead to lower unit gasket.
(i believe the first place the water goes in the powerhead is next to the exhaust manifold, is this correct?) The blue is the path of the water while the red is the exhaust right?
3. Check for leaks or blockage in the exhaust cover.
(i believe the second place the water goes in the powerhead is through the outer jacket of the head, is this correct?) The blue is the path of the water.
I found 1 potential problem. Let me know if you think this could be causing water to not get to the head or even cool off the exhaust manifold cover.
In this picture of the exhaust manifold cover you can see a small hole near the top. Also there is no gasket or gasket material on this cover. Should there be? I can see water coming up out of this hole and boiling while the engine is running.
Is it possible that water is leaking between the water passage on the left into the exhaust manifold because there is no gasket and is being boiled up and out of the hole in the exhaust manifold cover? Water should not be in the exhaust manifold under normal operation correct?
I'm as new as new can be to engines let alone diagnosing problems, however, I started thinking it through and here is what I can think to check:
1. Check for leaks or blockage in the pipe leading from the impeller housing to the powerhead to lower unit gasket.
2. Check for leaks or breakage between the water path and exhaust in the powerhead to lower unit gasket.
(i believe the first place the water goes in the powerhead is next to the exhaust manifold, is this correct?) The blue is the path of the water while the red is the exhaust right?
3. Check for leaks or blockage in the exhaust cover.
(i believe the second place the water goes in the powerhead is through the outer jacket of the head, is this correct?) The blue is the path of the water.
I found 1 potential problem. Let me know if you think this could be causing water to not get to the head or even cool off the exhaust manifold cover.
In this picture of the exhaust manifold cover you can see a small hole near the top. Also there is no gasket or gasket material on this cover. Should there be? I can see water coming up out of this hole and boiling while the engine is running.
Is it possible that water is leaking between the water passage on the left into the exhaust manifold because there is no gasket and is being boiled up and out of the hole in the exhaust manifold cover? Water should not be in the exhaust manifold under normal operation correct?