leaking coolant from bell housing?
Thread Starter
Intermediate
Joined: Jan 2023
Posts: 27
Likes: 0
From: Illinois
leaking coolant from bell housing?
recently finished putting a refreshed ls1 in my c5(old one blew), and i’m getting ready to start it for the first time but im leaking coolant from what looks like the upper part of the torque tube/bellhousing. anybody know what could be leaking? the only thing in that area that i touched is the slave cyl, it was cracked inside. all the gaskets on the engine and adjacent parts are brand new.
engine mods incase it matters:
ported 243 heads, ls9 gaskets, comp cams pushrods, upgraded rocker arm trunnions, arp head bolts
TXS bald eagle boost cam
ls6 intake mani
15% UD harmonic balancer/arp crank bolt
possibly a couple more i’m forgetting but those are the only ones that i think could in any way relate to this issue. thanks!
engine mods incase it matters:
ported 243 heads, ls9 gaskets, comp cams pushrods, upgraded rocker arm trunnions, arp head bolts
TXS bald eagle boost cam
ls6 intake mani
15% UD harmonic balancer/arp crank bolt
possibly a couple more i’m forgetting but those are the only ones that i think could in any way relate to this issue. thanks!
Burning Brakes
Joined: Jul 2010
Posts: 820
Likes: 535
From: Miami, Fl
Might be coming from the heater core lines. They run along the firewall and enter the cabin somewhere behind the engine. Did you remove them? If not maybe they got banged up during engine removal or installation.
Tech Contributor
Joined: Jan 2007
Posts: 19,472
Likes: 1,171
From: Dyer, IN
recently finished putting a refreshed ls1 in my c5(old one blew), and i’m getting ready to start it for the first time but im leaking coolant from what looks like the upper part of the torque tube/bellhousing. anybody know what could be leaking? the only thing in that area that i touched is the slave cyl, it was cracked inside. all the gaskets on the engine and adjacent parts are brand new.
engine mods incase it matters:
ported 243 heads, ls9 gaskets, comp cams pushrods, upgraded rocker arm trunnions, arp head bolts
TXS bald eagle boost cam
ls6 intake mani
15% UD harmonic balancer/arp crank bolt
possibly a couple more i’m forgetting but those are the only ones that i think could in any way relate to this issue. thanks!
engine mods incase it matters:
ported 243 heads, ls9 gaskets, comp cams pushrods, upgraded rocker arm trunnions, arp head bolts
TXS bald eagle boost cam
ls6 intake mani
15% UD harmonic balancer/arp crank bolt
possibly a couple more i’m forgetting but those are the only ones that i think could in any way relate to this issue. thanks!
Thread Starter
Intermediate
Joined: Jan 2023
Posts: 27
Likes: 0
From: Illinois
i did not remove them but u could be right. i’ll check them out thanks
Le Mans Master
Joined: Feb 2021
Posts: 6,514
Likes: 4,360
From: Florida
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