Thermostat housing removal and re-install
Thread Starter
Senior Member

Joined: Aug 2001
Posts: 814
Likes: 2
From: San Jose, CA, USA
Car: 88 IROC-Z - original owner!
Engine: LB9 with K&Ns, MSD, Foil, Taylor
Transmission: WC T-5
Axle/Gears: BW 9-bolt, 3.45 posi
Thermostat housing removal and re-install
Car is an 88 LB9.
Is there some special tool to get to the bolts on the tstat housing? I can barely get a combo wrench on them, and then I can only go like 1/16 turn at a time.
There has gotta be a better way.
Is there some special tool to get to the bolts on the tstat housing? I can barely get a combo wrench on them, and then I can only go like 1/16 turn at a time.
There has gotta be a better way.
Joined: Dec 2004
Posts: 16,926
Likes: 1,016
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Thermostat housing removal and re-install
If you remove the Throttlebody you have more access to the inner bolt.
Thread Starter
Senior Member

Joined: Aug 2001
Posts: 814
Likes: 2
From: San Jose, CA, USA
Car: 88 IROC-Z - original owner!
Engine: LB9 with K&Ns, MSD, Foil, Taylor
Transmission: WC T-5
Axle/Gears: BW 9-bolt, 3.45 posi
Junior Member
Joined: May 2018
Posts: 14
Likes: 0
From: Rhode Island
Car: 1987 Camaro Z28
Engine: 305 TPI
Transmission: T5
Axle/Gears: 3.08
Re: Thermostat housing removal and re-install
I just used a socket with a long extension when I replaced my thermostat, the bolts came out pretty easy putting them in you need to be careful they don't cross thread though
Joined: Jun 2015
Posts: 2,197
Likes: 246
From: Austin, TX
Car: 90 Formula / T-tops
Engine: 305 TPI
Transmission: MD8
Re: Thermostat housing removal and re-install
i feel your pain. if u are careful the gasket will be ok. it’s the cooling hoses that are a B
Member
iTrader: (3)
Joined: Jul 2018
Posts: 288
Likes: 68
From: Ohio
Car: 1989 IROC
Engine: 5.7 TPI
Axle/Gears: 2.77 Posi
Re: Thermostat housing removal and re-install
Just remove the 4 bolts in the throttle body and push it aside far enough to get access to the t-stat housing bolts. Trust me, it's 100 times easier than trying to get those bolts out with the throttle body still in place.
You more than likely won't need to replace the throttle body gasket, but so what if you do? It's probably 5 bucks.
You more than likely won't need to replace the throttle body gasket, but so what if you do? It's probably 5 bucks.
Thread Starter
Senior Member

Joined: Aug 2001
Posts: 814
Likes: 2
From: San Jose, CA, USA
Car: 88 IROC-Z - original owner!
Engine: LB9 with K&Ns, MSD, Foil, Taylor
Transmission: WC T-5
Axle/Gears: BW 9-bolt, 3.45 posi
Re: Thermostat housing removal and re-install
Thread
Thread Starter
Forum
Replies
Last Post
zman1969
Engine/Drivetrain/Suspension Parts for Sale
1
Jul 14, 2011 03:50 PM
bobdole369
Tech / General Engine
1
Apr 24, 2006 07:37 PM










