over heating an engine cause the manifolds to crack?
#1
Registered
Thread Starter
Join Date: Mar 2010
Location: Fort Myers, FL
Posts: 61
Likes: 0
Received 0 Likes
on
0 Posts
over heating an engine cause the manifolds to crack?
I have just bought this boat and when I recieved it the raw water pump was bad and not pumping at all. I am wondering if someone ran it hot if it would crack the exhaust manifolds. I am asking because I can not find the reason I am getting a lot of water in the manifolds.
#3
Registered
iTrader: (7)
I have just bought this boat and when I recieved it the raw water pump was bad and not pumping at all. I am wondering if someone ran it hot if it would crack the exhaust manifolds. I am asking because I can not find the reason I am getting a lot of water in the manifolds.
#4
Registered
Thread Starter
Join Date: Mar 2010
Location: Fort Myers, FL
Posts: 61
Likes: 0
Received 0 Likes
on
0 Posts
I pulled off all 4 risers cleaned very well, saw on signs of roting, surfaces cleaned up easily, old gaskests did not seem to show sign of leakage. I installed new gaskets used permantex head gasket sealer ( the brown stuff) let it sit overnite to dry. Put fresh oil in today and ran it on hose for about 15 mins changed oil, it was like coffee colored with a lot of cream in it. And they are glm manifolds which look to have not much use to them. I have been looking for a professional to pressure test them with no results.
#8
Registered
Join Date: Jul 2006
Location: Hooksett, NH
Posts: 179
Likes: 0
Received 0 Likes
on
0 Posts
i installed thesea pump hoses backwards one time and over heated the motors and I did crack an exhaust manifold.
I had a crack about 1/2 inch long. cap off one of your ends and fill the other end with water you will see very soon if they are leaking. good luck.
I had a crack about 1/2 inch long. cap off one of your ends and fill the other end with water you will see very soon if they are leaking. good luck.
#10
It is also possible the dry exhaust coming out damaged the inner liner of the rubber exhaust hoses. I have seen this happen and the liner dropped down and caused the engine to revert water. Look and/or feel around for any bubbles or splits in that inner hose.