water coming out of head between header and head ???

[gpracer]

please help we have brand new motor and we got it fired up and we have water coming out between header and head on # 4 and 6 cylinder what is causing this we took it apart had everything checked and put back together and same thing happened again ???? what is causing this ty for any help

[hammertime]

please help we have brand new motor and we got it fired up and we have water coming out between header and head on # 4 and 6 cylinder what is causing this we took it apart had everything checked and put back together and same thing happened again ???? what is causing this ty for any help

Deck on the block not straight, not allowing the gasket to seal ?

[THERATTLER]

If the water is coming out between header and head that means it is coming out the exhaust port (right)??if thats the case you have a cracked head, put a pressure tester on your radiator , remove header , and pump up tester to 20 lbs and look in port , assuming this is a v8 engine that would indicate that # 4& 6 are back to back , probally cracked into water jacket from ex ports ,,,,have they been ported out on the ex side??

[curtisreed]

please help we have brand new motor and we got it fired up and we have water coming out between header and head on # 4 and 6 cylinder what is causing this we took it apart had everything checked and put back together and same thing happened again ???? what is causing this ty for any help

Do you mean under the header between the head and block or from the header flange? Not sure I am getting the picture of where exactly it is coming from. Are you using head studs?

Curtis

[mopar1968]

Check header bolt's, could be leaking around thread's, I know ''MOPAR'' engines can do this, put some sealer on threads, some bolt's/stud's goes into water jacket :!: :!: Just a thought :!: :!:

''JUST MY TWO CENT'S WORTH''

[kwkracing]

your head studs are leaking?

[TS1955]

If the heads have been ported, it's possible they have gotten into a water jacket.

TS1955

[TheYellaBrick]

What make/size is the engine/heads ?

[cepx111]

Check header bolt's, could be leaking around thread's, I know ''MOPAR'' engines can do this, put some sealer on threads, some bolt's/stud's goes into water jacket :!: :!: Just a thought
Hey wasn't that one of Mopars better idea's? J/K 8)

One day we were working on my buddies 68 roadrunner.
We were taking the right side header off to gain acess to the starter and whoops, heres comes gycol all over the garage floor- we were both like WTF? :lol:

[gpracer]

408 chevy and head checked out good pressure tested it the mating surface on block ?? thanks for all ur help

[gpracer]

we are using arp head bolts no studs and we used sealer on all the bolts thanks

[dparker]

please help we have brand new motor and we got it fired up and we have water coming out between header and head on # 4 and 6 cylinder what is causing this we took it apart had everything checked and put back together and same thing happened again ???? what is causing this ty for any help

Do you mean under the header between the head and block or from the header flange? Not sure I am getting the picture of where exactly it is coming from. Are you using head studs?

Curtis

Where exactly is the water coming out from?

[gpracer]

we found the problem cracked cylinder wall taking back to machine shop thanks for all your help

[curtisreed]

Glad you posted back and let us know what you found. Sorry you had the problem.

Curtis

[MEMRACING62]

WHAT A ROTTEN ENDING :cry:

[CamBirdRacing]

Had that happen to a family member. Machine shop sleeved it and once he tightened the head down it cracked again. But his was getting water in the oil.

[dparker]

Gpracer, in using that 400 block your problem maybe the same again shortly. The 400 block is notorious for cracking the cylinders. The cylinders are simese and kinda thin. My advice if your running very much compression would be to invest in a dart block. Problem solved no more worries. Just a thought.