440 Problem - screwup help
#106930
08/18/08 05:13 PM
08/18/08 05:13 PM
|
Anonymous
OP
Unregistered
|
Anonymous
OP
Unregistered
|
Hello guys.
I installed exhaust manifolds on my 440 and one of the stud holes was stripped. I had to retap one of the holes to accept the stud, unfortunately I still couldn't get the bolt to tighten up too well.
Well anyways I hooked up the radiator and everything and poured water into the radiator and there is a little bit of water dripping out of the exhaust manifold bolt pictured.
I think I must have dipped into a coolant passage?
What is my course of action to repair this? I am going to remove the manifold tonight.
Will I have to remove the head to fix this?
Please advise.
Last edited by pavell; 08/18/08 05:21 PM.
|
|
|
Re: 440 Problem - screwup help
#106933
08/18/08 05:26 PM
08/18/08 05:26 PM
|
Joined: Aug 2005
Posts: 11,543
chicagoland,usa
buildanother
I Live Here
|
I Live Here
Joined: Aug 2005
Posts: 11,543
chicagoland,usa
|
FOR NOW you can drive a 10 x1.50 mm stud in there, nice and tight with some sealer, and use a 10 mm hex nut.
Last edited by buildanother; 08/18/08 05:32 PM.
|
|
|
Re: 440 Problem - screwup help
#106934
08/18/08 05:32 PM
08/18/08 05:32 PM
|
Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
|
I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
|
Seen this all too many times, putting on headers/ etc......chances are when you ran that tap in, the casting is very sensitive in that location, not only did you crack the water jacket, but maybe the exhaust port wall as well, check the oil for signs of anti-freeze.......sorry but I wouldn't chance a start up,.....I'd R&R the head....if you do chance a start up, and have water leaking from your exhaust tip, or your exhaust plume is like a mosquito fogger!.....time to R&R the head............sucks....but sh1t happens 
|
|
|
Re: 440 Problem - screwup help
#106935
08/18/08 07:23 PM
08/18/08 07:23 PM
|
Joined: Jun 2008
Posts: 3,916
usa
lewtot184
master
|
master
Joined: Jun 2008
Posts: 3,916
usa
|
Quote:
Hello guys.
I installed exhaust manifolds on my 440 and one of the stud holes was stripped. I had to retap one of the holes to accept the stud, unfortunately I still couldn't get the bolt to tighten up too well.
Well anyways I hooked up the radiator and everything and poured water into the radiator and there is a little bit of water dripping out of the exhaust manifold bolt pictured.
I think I must have dipped into a coolant passage?
What is my course of action to repair this? I am going to remove the manifold tonight.
Will I have to remove the head to fix this?
Please advise.
heli-coil
|
|
|
Re: 440 Problem - screwup help
[Re: lewtot184]
#106936
08/18/08 09:15 PM
08/18/08 09:15 PM
|
Joined: Jan 2003
Posts: 4,150
lewiston, ID
cornucopia
|
Joined: Jan 2003
Posts: 4,150
lewiston, ID
|
Quote:
Quote:
Hello guys.
I installed exhaust manifolds on my 440 and one of the stud holes was stripped. I had to retap one of the holes to accept the stud, unfortunately I still couldn't get the bolt to tighten up too well.
Well anyways I hooked up the radiator and everything and poured water into the radiator and there is a little bit of water dripping out of the exhaust manifold bolt pictured.
I think I must have dipped into a coolant passage?
What is my course of action to repair this? I am going to remove the manifold tonight.
Will I have to remove the head to fix this?
Please advise.
heli-coil
|
|
|
Re: 440 Problem - screwup help
#106937
08/18/08 09:39 PM
08/18/08 09:39 PM
|
Joined: Mar 2007
Posts: 3,285
West Coast, USA
jbc426
master
|
master
Joined: Mar 2007
Posts: 3,285
West Coast, USA
|
OR, you could keep it simple. If the bolt held, leave the maifold alone and pour in some leak stop in the radiator. If you use the metalic powdered stuff, make sure you mix it with some water so that it is a semi liquid first. Then pour it in with the engine running. Drive it or run it for 20 minutes.
Some of those bolt holes go right into the water jacket from the factory. I've had several fresh motors leak past the antisieze I used on my header bolts. I used the leak stop, and never had another problem.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
|
|
|
Re: 440 Problem - screwup help
[Re: jbc426]
#106938
08/18/08 09:46 PM
08/18/08 09:46 PM
|
Joined: Jan 2003
Posts: 25,200
Upper Midwest
MoparforLife
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 25,200
Upper Midwest
|
ALL manifold studs are wet on a big block so if the stud is not tight in the threads or sealed with a sealer there will very likely be some seepage. Big block all go to water - small block only the end studs go to water. In your case the stud is slightly loose in the threads ad a good sealer would be beneficial or as said above put in a slightly oversize metric stud. No need to get too carried away and loose a whole bunch of sleep at this point. 
|
|
|
Re: 440 Problem - screwup help
[Re: RapidRobert]
#106940
08/19/08 12:45 AM
08/19/08 12:45 AM
|
Anonymous
OP
Unregistered
|
Anonymous
OP
Unregistered
|
Great news, I was about to have nightmares!
Thanks again guys!
|
|
|
|
|
