What would cause coolant to seep ftom Header bolt??? - LS1TECH

Log In 


Conversions & Hybrids LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

What would cause coolant to seep ftom Header bolt???

Reply
 
Thread Tools Search this Thread
Old 05-25-2011, 10:32 PM   #1
Staging Lane
Thread Starter
 
Join Date: Apr 2009
Posts: 66
Default What would cause coolant to seep ftom Header bolt???

I have about 1 hour of run time on my LQ9, and I started to see coolant seeping from only one header bolt. This worries me... Headers are Edelbrock A-body swap headers installed with bolts that came with kit and anti-seize. Does this seepage mean there is a crack in the water jacket and it is spilling into the header bolt hole??? Thanks!!!
Dave-1970 is offline   Reply With Quote
Old 05-25-2011, 11:00 PM   #2
TECH Fanatic
iTrader: (23)
 
xpndbl3's Avatar
 
Join Date: Dec 2006
Location: orland park, IL
Posts: 1,568
Default

header bolts should not go into coolant passages at all. Make sure the leakage isn't from a higher place on the motor and just seeping around to the header bolts, otherwise you have a cracked head possibly.
xpndbl3 is offline   Reply With Quote
Old 05-25-2011, 11:43 PM   #3
TECH Senior Member
iTrader: (18)
 
itsslow98's Avatar
 
Join Date: Apr 2006
Location: Maryland
Posts: 6,750
Default

which side? on an ls1 you have a port right next to the last header bolt on the back passenger head. If there is no plug in it then it will leak a lot. That could be what you are seeing, or the plug could be leaking.
itsslow98 is offline   Reply With Quote
Old 05-26-2011, 05:16 AM   #4
Banned
iTrader: (3)
 
Join Date: Apr 2011
Posts: 107
Default

Take the header bolt out and see if there is a a bigger leak, somebody could have bottomed out a bolt in that hole and crack or broken out the bottom of it. If that's the case put some sealer on the bolt. I've used thwe copper colored permatex silicone when I ran in to this issuse on a non-LS motor with aluminium heads
2xLS3 is offline   Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Coolant leaking from somewhere in the back of the block l 95 Trans Am l Generation III Internal Engine 6 04-22-2016 10:35 PM
Shop to weld axle tube in Houston jasonz28camaro Texas Members 11 01-21-2014 10:00 PM
Quick head gasket question BCook839 LT1-LT4 Modifications 15 04-15-2010 08:19 AM
New best w/ AI setup.... Barely lol TravisA LT1-LT4 Modifications 11 11-17-2009 10:07 AM
Installed Cometic .040 gaskets with AFR205, now leaking... Dixit Generation III Internal Engine 18 08-31-2005 10:01 PM


Tags
antifreeze, bolt, bolts, coming, coolant, cracked, engine, gm, head, header, leaking, ls, ls1, motor, motors, passage

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off



All times are GMT -5. The time now is 05:29 PM.