LT1-LT4 Modifications 1993-97 Gen II Small Block V8

ugh, should I worry about this?

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Old Jun 19, 2011 | 08:16 PM
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Default ugh, should I worry about this?

Notice the "sealant" around the thermostat housing? Looks almost like silicone if silicone turns grayish in the elements? I was going to swap it out with a 160 but figured not to even bother with it yet. Hope the bitch doesn't leak when i do....



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Old Jun 19, 2011 | 08:20 PM
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If t-stat is installed and fasteners torqued properly the new t-stat rubber seal wont need silicone... Clean all that crap off
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Old Jun 19, 2011 | 08:31 PM
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yeah it shouldnt need any at all. wonder why they did that. It was probably just the black rtv sealant
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Old Jun 19, 2011 | 08:41 PM
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Now i'm concerned someone did that Think i should be fine once replaced with the new one and the o ring?
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Old Jun 19, 2011 | 08:53 PM
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It's not going to hurt anything, calm down.

Just pull the old one out, clean up the silicone, then install the new one sans silicone.
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Old Jun 19, 2011 | 09:05 PM
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Originally Posted by RamAir95TA
It's not going to hurt anything, calm down.

Just pull the old one out, clean up the silicone, then install the new one sans silicone.
Thanks for the chill pill, haha
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Old Jun 20, 2011 | 01:04 AM
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Btw new thermostats come with new o-rings IIRC
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Old Jun 20, 2011 | 03:41 AM
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do the throttle body bypass while you're in there
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Old Jun 20, 2011 | 11:33 AM
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Originally Posted by boostedlt1
do the throttle body bypass while you're in there
Not familiar with this. Feel like explaining or posting a link for reading?
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Old Jun 20, 2011 | 11:35 AM
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Originally Posted by 02v8ta
Not familiar with this. Feel like explaining or posting a link for reading?
Let me Google that for you.
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Old Jun 20, 2011 | 01:37 PM
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I had to use silicone around my water neck when I replaced the waterpump because when I filled up the coolant, it started seeping out even without pressure. I assume since it was an aftermarket pump that maybe the casting had imperfections or something.
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Old Jun 20, 2011 | 04:25 PM
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Originally Posted by 93M6Formula
I had to use silicone around my water neck when I replaced the waterpump because when I filled up the coolant, it started seeping out even without pressure. I assume since it was an aftermarket pump that maybe the casting had imperfections or something.
You are very likely correct. It's sad, but finding quality replacement parts for these engines is becoming a real problem. I replaced my radiator a few months ago with an Autozone special. Every single port, inlet/outlet was smaller than stock, meaning the stock hose clamps did not have enough force to keep coolant from seeping. I had to do some work on the tabs for the coolant level sensor as well has basically almost having to hammer it into place. Frustrating as hell.
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