Re: help 451 loosing coolant somehow.
[Re: 340duster340]
#1520166
10/20/13 01:11 PM
10/20/13 01:11 PM
|
Joined: Oct 2003
Posts: 21,345 Marysville, O-H-I-O
70Cuda383
Too Many Posts
|
Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
|
I had a similar problem. Coolant would dissapear. Cooling system held 15 psi overnight.
Had a hairline crack in a cylinder wall, when hit it would seep into the cylinder and go out the pipe as steam. Finally found it when the leak filled the chamber and hydrolocked on the next start up.
Odd thing was that somehow the water was pushed into the intake from hole 3, and hydrolocked #6. Found the crack on engine tear down.
**Photobucket sucks**
|
|
|
Re: help 451 loosing coolant somehow.
[Re: 70Cuda383]
#1520167
10/20/13 02:27 PM
10/20/13 02:27 PM
|
Joined: May 2003
Posts: 1,751 Graham, WA
Polarapete
top fuel
|
top fuel
Joined: May 2003
Posts: 1,751
Graham, WA
|
This can be maddening! A shop I worked at had a Camaro with a small block loosing coolant. Engine ran well enough, but lost coolant. Shop owner replaced the short block, had the valves ground and heads surfaced, still leaked. Finally found a crack inside a port. This was back when Chev small block heads were cast 3# lighter in Mexico. Blame the engineering not the foundry. Machine shop shared the cost, but no one won. Pressure test the assembled engine and then the heads and you will find it!
1986 Dodge Ramcharger 440 2wd, Bracket Racer Under Construction 1998 Ram 2500 QuadCab, new daily driver. 2008 Honda Element 2014 Carry-On 7x14 Cargo Trailer
|
|
|
Re: help 451 loosing coolant somehow.
[Re: HEMIDOG 70]
#1520169
10/20/13 04:00 PM
10/20/13 04:00 PM
|
Joined: Jan 2003
Posts: 75,274 A gulag near you.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 75,274
A gulag near you.
|
Quote:
Thanks for the info guy's keep it coming if anyone has run into this issue. This is my friends engine. The short block was bought from a very well known big block stroker engine builder. My friend is sick he has many $ in the engine and virtually no use of the engine so far. We will try the pressure check but I'm afraid it my be in the block. The moisture is in 2 cylinders I think but can't remember which #'s. I think he's going to join here so he can post questions.
A friend had a similar issue with an engine built my a big name engine builder in Pa. He had Alum. heads on a stock 440 block with 13.0 compression and they put it together with head bolts, I suggested studs with this build, they didn't chase the head bolt holes and were getting a false torque reading that allowed coolant to leak into the valley, it took 3 attempts before they finally figured it out
|
|
|
Re: help 451 loosing coolant somehow.
[Re: HEMIDOG 70]
#1520170
10/20/13 04:06 PM
10/20/13 04:06 PM
|
Joined: Dec 2004
Posts: 10,607 Rittman Ohio
fourgearsavoy
I Live Here
|
I Live Here
Joined: Dec 2004
Posts: 10,607
Rittman Ohio
|
I have seen coolant loss from exhaust studs running down the headers and into the exhaust system. The owner put head gaskets on it and still had the issue that's when he called me. Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
|
|
|
|
|