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06-16-2014, 12:47 PM | #1 |
mini truck racer
Join Date: Aug 2006
Location: Baytown , texas
Posts: 3,010
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Water leaking by head studs
Anybody ever used the radiator sealent tabs to stop water seeping by head studs ?
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1949 5-window 1969 Camaro 1976 Chevy Luv yellow 1978 Chevy Luv Blue 1976 Chevy Luv Black 1979 Firebird Flooded in Harvey 1999 F350 Dually 2005 GMC Sierra 4.8 RCSB 2014 Explorer (wifes) My build :http://67-72chevytrucks.com/vboard/s...d.php?t=399148 Build #2: http://67-72chevytrucks.com/vboard/s...d.php?t=653583 |
06-16-2014, 08:01 PM | #2 |
Senior Member
Join Date: Apr 2000
Location: Delta,Pa
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Re: Water leaking by head studs
Rather than crud up the rest of the cooling system I would pull the studs and use sealer on them. If you pull them one at a time and retorque you will probably be fine. I know pulling the studs is last resort but its probably the only sure way to fix the problem.
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
06-16-2014, 10:07 PM | #3 |
mini truck racer
Join Date: Aug 2006
Location: Baytown , texas
Posts: 3,010
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Re: Water leaking by head studs
Thanks , i only had one barely dripping . Called the machinist and he said the same thing . Pull the stud and reseal it . These heads have like .060 ( cant remember the actual number ) angle milled off them . They ended up like 20 degrees . the chambers have been cnc 'd to get the cc back . Being a small body getting to the one stud is a pain . Pasengerside outboard 4th stud from the front . Right under the header tube . I unbolted the header and to pull the stud i have to remove the header . Which meant starter , torsion bar , exhaust etc , etc . Machinist told me he runs GM coolent sealer tabs that they used for the northstar cadillac . Ground up 4 of them and pre dissolved them in a cup of water and dumped them in . Watched the leak seal before my eyes . Let it cool down and heat cycled it again . no leaks .
Probably not the correct fix , but i am working days and dont have time to tear into it . I also have a points race next weekend . I will flush the system soon and im moving from a 22 x 19 rad with short pump and flex fan to a 26 x 19 with a shroud and electric fan and a edelbrock electric water pump . So cooling system crud i will flush . If this was a full size i would have pulled the offender and resealed it .
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1949 5-window 1969 Camaro 1976 Chevy Luv yellow 1978 Chevy Luv Blue 1976 Chevy Luv Black 1979 Firebird Flooded in Harvey 1999 F350 Dually 2005 GMC Sierra 4.8 RCSB 2014 Explorer (wifes) My build :http://67-72chevytrucks.com/vboard/s...d.php?t=399148 Build #2: http://67-72chevytrucks.com/vboard/s...d.php?t=653583 |
06-16-2014, 11:04 PM | #4 |
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Join Date: Apr 2000
Location: Delta,Pa
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Re: Water leaking by head studs
You will be fine. Believe me I get it. Tearing stuff apart over a simple issue is enough to make you crazy. Its domino effect and then the you might as well's kick in. All the sudden 10 cents worth of sealer on a bolt turn into a 2000 dollar job. LOL
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
06-16-2014, 11:27 PM | #5 |
Registered User
Join Date: Jun 2004
Location: Saskatchewan, Canada
Posts: 1,368
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Re: Water leaking by head studs
I hear you also, I did my oil pan gasket and had no leaks at all on my motor, got the vac pump setup, look at it and there is one small drip on the oil bung, snug it up more but still one small bead of oil on the the bung after I drive it. Piss me right off, every time I change oil I put a new bung gasket on, a good Moroso bronze one too, but screw that it has fresh Lucas in it now and it I'm not dealing with it until next oil change.
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Speed is just a matter of money, question is how fast can you afford to go? 8.95@148.97mph all motor haven't tried bottle yet Sponsored by: Getz Oilfield Consulting Hard Candy Customs |
06-17-2014, 06:21 AM | #6 |
mini truck racer
Join Date: Aug 2006
Location: Baytown , texas
Posts: 3,010
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Re: Water leaking by head studs
We will see . I will heat cycle it tonight . I will know when i open the garage if there is a spot on the floor .
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1949 5-window 1969 Camaro 1976 Chevy Luv yellow 1978 Chevy Luv Blue 1976 Chevy Luv Black 1979 Firebird Flooded in Harvey 1999 F350 Dually 2005 GMC Sierra 4.8 RCSB 2014 Explorer (wifes) My build :http://67-72chevytrucks.com/vboard/s...d.php?t=399148 Build #2: http://67-72chevytrucks.com/vboard/s...d.php?t=653583 |
06-17-2014, 12:35 PM | #7 |
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Join Date: Aug 2010
Location: Keller TX
Posts: 836
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Re: Water leaking by head studs
I can look at this two ways.. Sealant on the threads ( dart blocks are dry holes he he ) or the use of aluma seal. I myself do not see any issue with that. It is extremely common today to have major car company's use this product. Aluma seal does not gunk up the system. I have delt with a heat core weep. Two company's claim to have fixed it due to the 62 deluxe system I cannot buy a new heater core. Bars seal is a great product . In fact for bead locks 2-4 OZ of this and 1-2 oz of antifreeze will stop bead locks from loosing air. I use this in my sand rail as I have 4 wheels with bead locks and the tires are less than great construction. Stopped the leaks cold and even with long off season sitting air pressure down a few lbs. Silly maybe but in the end I have found that times are you can put all things together the best you can and you get a slight weep. Sucks I know and if I can use a something to stop it and prevent any tiny weepage issues.
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06-18-2014, 10:30 PM | #8 |
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Join Date: Jul 2009
Location: Houston, Tx
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Re: Water leaking by head studs
I used the sealant tabs that you get at the dealer. They worked good for me no problems.
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06-20-2014, 08:37 PM | #9 |
Registered Truck Offender
Join Date: May 2008
Location: hells training ground (aka Ariz)
Posts: 3,118
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Re: Water leaking by head studs
Last GM 400 block I built had problems with coolant wicking up the head studs. I pulled each one,, one by one and put them back in with a smear of the rightstuff (thinking my worries were over).. HA!! not a chance. Was still finding milky slime under the rocker covers and it isnt humid here in this DRY HEAT Bull Crap....I finally pulled it apart and put the head studs in with Locktite GREEN (Sleeve retainer)
That will seal them up every time. And with a MAP gas torch, it will let loose when you need to disassemble.
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Still playin with trucks, even at my age! When you're dead, it's only a problem for the people around you, because you don't know you're dead. .....It's kinda the same when your STUPID. I just did my taxes and reviewed my SS statement. Thanks to the current administration it looks like I will only have to work till noon on the day of my funeral. |
06-21-2014, 09:14 AM | #10 |
mini truck racer
Join Date: Aug 2006
Location: Baytown , texas
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Re: Water leaking by head studs
Definately have a temp problem . I will be flushing this morning and adding some type of octal alcohol or water wetter . I flushed it once last night before the semis . It was 215 after the finals . Stuff coming out looked like mud . I have a electric water pump and electric fan . Will probably order a larger radiator also . Not real happy about the mud water though
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1949 5-window 1969 Camaro 1976 Chevy Luv yellow 1978 Chevy Luv Blue 1976 Chevy Luv Black 1979 Firebird Flooded in Harvey 1999 F350 Dually 2005 GMC Sierra 4.8 RCSB 2014 Explorer (wifes) My build :http://67-72chevytrucks.com/vboard/s...d.php?t=399148 Build #2: http://67-72chevytrucks.com/vboard/s...d.php?t=653583 |
06-22-2014, 02:00 PM | #11 |
mini truck racer
Join Date: Aug 2006
Location: Baytown , texas
Posts: 3,010
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Re: Water leaking by head studs
Update: i fired the truck Sat and went straight to the water hose rack . Pulled the bottom water hose and flushed the block and radiator for about 20 minutes til it came out clean . It was better heat wise , but i was still fighting the temp . Head studs continued to stay sealed though .
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1949 5-window 1969 Camaro 1976 Chevy Luv yellow 1978 Chevy Luv Blue 1976 Chevy Luv Black 1979 Firebird Flooded in Harvey 1999 F350 Dually 2005 GMC Sierra 4.8 RCSB 2014 Explorer (wifes) My build :http://67-72chevytrucks.com/vboard/s...d.php?t=399148 Build #2: http://67-72chevytrucks.com/vboard/s...d.php?t=653583 |
06-22-2014, 10:25 PM | #12 |
Registered User
Join Date: Jun 2004
Location: Saskatchewan, Canada
Posts: 1,368
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Re: Water leaking by head studs
You running a stat or restrictor plate? Mine ran cooler with the smaller restrictor plate in it, rad took out more heat with the fluid moving through a bit slower.
On a side note, I just went from a Edelbrock aluminium mechanical pump with a Moroso electric drive motor on it and dual cheaper puller fans with a full custom aluminum shroud to a Moroso electric pump and dual good spiral blade pusher fans no shroud and runs WAY cooler now. I think the key words are the pump and good fans, puller with a shroud would be even better yet, but it's night and day difference with the new pump, not sure if its moving fluid slower yet or just faster, maybe just right, but seams to be the ticket. My old pump I tried bigger and smaller drive pulleys on the electric motor and ran same either way, heard someone else complain about the Edelbrock aluminum pump so not sure what was up, but it's off now. I had also at one time ran that pump with pulleys off the crank, large and small and would run warm on the street, I also have a huge BeCool rad setup, system just wouldn't work for me, even tried taking some timing out on the street. Now its like woo hoo success at last. Just throwing out some random findings.
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Speed is just a matter of money, question is how fast can you afford to go? 8.95@148.97mph all motor haven't tried bottle yet Sponsored by: Getz Oilfield Consulting Hard Candy Customs Last edited by 71Dragtruck; 06-22-2014 at 10:37 PM. |
06-23-2014, 12:26 PM | #13 |
mini truck racer
Join Date: Aug 2006
Location: Baytown , texas
Posts: 3,010
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Re: Water leaking by head studs
The truck will only allow me to use a 22 x 19 radiator right now . I am taking it to the chassis shop to have the core support strenghened to allow me to trim it to make room for a 26 x 19 with 1 puller and and electric water pump . I have a thermostat with the center removed right now .
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1949 5-window 1969 Camaro 1976 Chevy Luv yellow 1978 Chevy Luv Blue 1976 Chevy Luv Black 1979 Firebird Flooded in Harvey 1999 F350 Dually 2005 GMC Sierra 4.8 RCSB 2014 Explorer (wifes) My build :http://67-72chevytrucks.com/vboard/s...d.php?t=399148 Build #2: http://67-72chevytrucks.com/vboard/s...d.php?t=653583 |
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