Thermostat Housing Bolt - Factory or Bad Joke by Previous Owner
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Joined: Aug 2011
Posts: 50
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From: South Central Ohio
Car: 1991 Firebird Formula
Engine: 305 TPI
Transmission: 700R4 to WC T5 swap
Axle/Gears: 2.73 drum to 3.73 PBR swap
Thermostat Housing Bolt - Factory or Bad Joke by Previous Owner
Not sure it's called a thermostat housing, but anyhow...
This is a bolt that has a nut half-way. (Threads above and below the nut that turn with the nut). When I try to back it out the top of the bolt hits a (coolant pipe?) directly above it.
It kinda appears the intake has been removed and replaced once, and I wonder if the previous owner put a wrong bolt on it before replacing the intake.
It been a while since I took the engine out so I can't remember if that kind of bolt served a second purpose as a mount of some sort, but I kinda doubt it. Never heard of removing the intake to change the thermostat....
This is a bolt that has a nut half-way. (Threads above and below the nut that turn with the nut). When I try to back it out the top of the bolt hits a (coolant pipe?) directly above it.
It kinda appears the intake has been removed and replaced once, and I wonder if the previous owner put a wrong bolt on it before replacing the intake.
It been a while since I took the engine out so I can't remember if that kind of bolt served a second purpose as a mount of some sort, but I kinda doubt it. Never heard of removing the intake to change the thermostat....
Joined: Oct 2001
Posts: 12,229
Likes: 1,157
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Thermostat Housing Bolt - Factory or Bad Joke by Previous Owner
Thats factory correct. Removing the T-body is the best way to get at that bolt.
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Joined: Nov 2001
Posts: 915
Likes: 2
From: Erlanger, KY
Car: 1989 Iroc-z
Engine: 350 TPI
Transmission: Auto 700R4
Axle/Gears: 9 bolt - 2.77
Re: Thermostat Housing Bolt - Factory or Bad Joke by Previous Owner
What ttop350 is correct. That's a factory bolt. Removing the TB will help but if you don't want to do that, remove the other bolt from the housing and then start removing that bolt. Once its loose, you can lift up on the housing and begin to remove the bolt all the way.
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