Leaking at thermostat housing

charlescmoss3

SDD Junior Member
Joined
Apr 18, 2011
Messages
25
Reaction score
0
Location
Memphis, TN
I am doing a coolant flush and had a stuck thermostat housing bolt that had to be drilled out. It is back together now, minus the thermostat. It doesn't appear to be leaking under pressure, at least not as bad, but when the radiator cap comes off, it starts leaking. The leak is coming from between the water pump and thermostat housing. Is this normal?

Happy Memorial Day.
 

DaveBen

SDD Senior Member
Joined
May 31, 2005
Messages
9,629
Reaction score
81
Location
Ukiah, California
Don't run too long without the thermostat. These engines need to be kept at about 200° to operate correctly. They do not run very good at less water temperatures. You will get incomplete combustion.

Dave
 

charlescmoss3

SDD Junior Member
Joined
Apr 18, 2011
Messages
25
Reaction score
0
Location
Memphis, TN
I bought the billet aluminum housing to replace stock. I will flush what's In there and add some RTV sealant upon final assembly and see if that fixes it.
 

charlescmoss3

SDD Junior Member
Joined
Apr 18, 2011
Messages
25
Reaction score
0
Location
Memphis, TN
Well, I applied the sealant and put it back together. I was torquing the bolts down and broke the one in the rear. The leak was minimal so I drove it to the shop to let them deal with it. This coolant flush has been a nightmare from the start.
 

Members online

Forum statistics

Threads
30,547
Messages
266,142
Members
14,676
Latest member
FlorWhitfe
Top