LS3 Crank Seal Install

Ajs16400 · 12-17-2022, 10:58 PM

I have the balancer off that was pretty easy. Was just curious what tool every is using to get the old seal out and what tool you are using to install the new one.

Kerry · 12-17-2022, 11:17 PM

the seal should go in sort of tight. If u can just push it in pretty easy by hand it might spin with the balancer. Mine did. It was a ls3 seal from a parts store. I went with the fast fish from gpi. I made a tool like with a socket and used the crank bolt to push it in.

Another think is why are u putting it in? Did it blow out? If so u better do a blow down test and look for the cylinder thats a little lower than the others like mine was 25% leak and all others were 5%. The 25 had cracked ring land causing the crankcase to be pressurized.

I run 16pds with a procharger and NO extra venting other than what procharger does. Center of stock oil separator center to top of air filter. Ive even run it with that just open.

Or maybe ur just their and want to upgrade?

Just a cheap hook type tool u can buy in a set with like a ice pick tool comes in a kit of 4 usually or something similar.

12-17-2022, 10:58 PM	#1
Ajs16400 Drives: 2017 Camaro SS Convertible Join Date: Jul 2019 Location: Wentzville Missouri Posts: 194	LS3 Crank Seal Install I have the balancer off that was pretty easy. Was just curious what tool every is using to get the old seal out and what tool you are using to install the new one.

12-17-2022, 11:17 PM	#2
Kerry Drives: 2019 2SS Camaro Join Date: Apr 2012 Location: Al Posts: 828	the seal should go in sort of tight. If u can just push it in pretty easy by hand it might spin with the balancer. Mine did. It was a ls3 seal from a parts store. I went with the fast fish from gpi. I made a tool like with a socket and used the crank bolt to push it in. Another think is why are u putting it in? Did it blow out? If so u better do a blow down test and look for the cylinder thats a little lower than the others like mine was 25% leak and all others were 5%. The 25 had cracked ring land causing the crankcase to be pressurized. I run 16pds with a procharger and NO extra venting other than what procharger does. Center of stock oil separator center to top of air filter. Ive even run it with that just open. Or maybe ur just their and want to upgrade? Just a cheap hook type tool u can buy in a set with like a ice pick tool comes in a kit of 4 usually or something similar.

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