Thermostat housing bolt broke.
#1
Thread Starter
CF Veteran
Joined: Dec 2011
Posts: 1,080
Likes: 7
From: IE (SoCal)
Year: 1994 SE
Model: Cherokee
Engine: 4.0
Thermostat housing bolt broke.
Was wondering when something would happen, Jeep has been way too easy to work on.
When attempting to remove the T-stat housing, the upper bolt sheared at the head. The bolt spins with the housing so in my wisdom I removed the water pump to spin the whole assembly off, sounded legit, but the T-stat **** blocked my idea. I've read online about people drilling out the bolt, which sounds like a lot of work. Can the housing just be cut off at the bolt area? It sounds much easier to sacrifice the ~$15 housing than to remove the entire grill area to drill.
I've already sprayed it with penetrating fluid, tried a wedge, this thing is stuck to the bolt threads pretty good.
When attempting to remove the T-stat housing, the upper bolt sheared at the head. The bolt spins with the housing so in my wisdom I removed the water pump to spin the whole assembly off, sounded legit, but the T-stat **** blocked my idea. I've read online about people drilling out the bolt, which sounds like a lot of work. Can the housing just be cut off at the bolt area? It sounds much easier to sacrifice the ~$15 housing than to remove the entire grill area to drill.
I've already sprayed it with penetrating fluid, tried a wedge, this thing is stuck to the bolt threads pretty good.
#4
Thread Starter
CF Veteran
Joined: Dec 2011
Posts: 1,080
Likes: 7
From: IE (SoCal)
Year: 1994 SE
Model: Cherokee
Engine: 4.0
Thanks, I've learned that sometimes it feels much better to destroy an easily replaceable part than to dick with something till you are clinically insane.
#6
Seasoned Member
Joined: Apr 2015
Posts: 375
Likes: 2
From: Denver, Colorado
Year: 2000
Model: Cherokee
Engine: 4.0
#7
Thread Starter
CF Veteran
Joined: Dec 2011
Posts: 1,080
Likes: 7
From: IE (SoCal)
Year: 1994 SE
Model: Cherokee
Engine: 4.0
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#8
Seasoned Member
Joined: Dec 2012
Posts: 340
Likes: 0
From: Indiana
Year: 1998
Model: Cherokee
Engine: 4.0
I'm pretty sure I do this almost every time I work on my Jeep. She shudders in fear when I break out the angle grinder.
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buckadilla (04-13-2021)
#10
#12
Seasoned Member
Joined: Aug 2015
Posts: 404
Likes: 17
From: New Jersey
Year: 2000
Model: Cherokee
Engine: 4.0L
Wait am I not seeing the point of this? Don't the bolts go all the way through, couldn't you pull the housing off and just use vice grips on the the part that's left?
#13
sometimes the bolt is galvanized to the housing due to corrosion reaction between aluminum and steel. The head of the bolt breaks off but the stub remaining is not rusted to the head. It is free but u can't get it out because it's stuck to the housing
#14
Seasoned Member
Joined: Aug 2015
Posts: 404
Likes: 17
From: New Jersey
Year: 2000
Model: Cherokee
Engine: 4.0L
Ahhhhh I see now, makes way more sense. I was reading the thread and replies and was confused. That's like breaking the head off a head bolt and angle-grinding the cylinder head to get to it instead of lifting it off. But the metals being fused makes sense why they get stuck now.