Series 2 Pre 2000... No paper T stat gasket - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Reply
 
 
 
Thread Tools Search this Thread
Old 04-18-2007, 01:02 AM   #11
Senior Member
Posts like a Supercharger
 
Join Date: May 2003
Location: Columbus, OH
Posts: 163
Thanks: 0
Thanked 0 Times in 0 Posts
13secGTP is on a distinguished road
Default

I never use a paper gasket for any year. As long a the rubber 0-ring in in good shape, and surfaces are clean/smooth you won't have issues. The rubber o-ring actually creates the seal.
13secGTP is offline   Reply With Quote
Old 04-18-2007, 07:56 AM   #12
DINOSAURUS BOOSTUS

Expert Gearhead
Thread Starter
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Let me clarify

I used only the rubber o ring that surrounds the thermostat. It does protrude above the surface of the lower intake manifold and seals to the water outlet very well. The paper gasket that is expected was not used.

There is no need to use RTV unless it is recommended or your surface area being sealed is not a good flat surface. RTV would make changing the thermostat more difficult than the paper in most cases.

From this point on..(being that I would change a T stat on a wimp) I'll be running w/o the paper on my Series 2. All Series 1 owners should still continue to use the paper.
BillBoost37 is offline   Reply With Quote
Old 04-18-2007, 09:09 AM   #13
Senior Member
Posts like a Camaro
 
Join Date: Dec 2005
Location: Clovis, CA
Posts: 851
Thanks: 0
Thanked 0 Times in 0 Posts
MACDRIVE is on a distinguished road
Default

I had mine on without the gasket for about a week, but then I kept getting a faint coolant smell. Upon close inspection, I then noticed an orange like of gel (Dex-cool) around the T-stat housing-to-block mating surface. The coolant had ever so slightly seeped out, but it would dry to a gel before it formed a drip.

I installed a housing-to-block gasket from NAPA and had no more seep since then.
MACDRIVE is offline   Reply With Quote
Old 04-18-2007, 09:11 AM   #14
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

It should be noted that if you have ANY pitting or corrosion due to age, you should continue to use the gasket.

I have no issues with the paper gasket personally. I use a very thin skim coat of blue RTV on each side of the paper. It pulls right off cleanly when I need to change it. Then a small wire toothbrush cleans of the RTV remaining.
willwren is offline   Reply With Quote
Old 04-18-2007, 10:19 AM   #15
Senior Member
Certified Car Nut
 
Join Date: Jul 2003
Location: Robbinsdale, MN
Posts: 15,408
Thanks: 0
Thanked 0 Times in 0 Posts
MOS95B is on a distinguished road
Default

I was gonna say that the purpose of the gasket and/or sealant is to prevent the metal on metal contact which would promote corrosion, wear, etc. increasing the chances of leaking. If you don't like the idea of the paper, a good high-temp sealer, applied thinly would be better than nothing. I generally apply a thin bead, schmear it a bit, let it dry a bit, then another thin bead and put it together.

Again, I have not yet done this with the Bonne. Until I get one apart myself, I'm just speaking from experiences with other engines.
MOS95B is offline   Reply With Quote
Old 04-18-2007, 10:27 AM   #16
DINOSAURUS BOOSTUS

Expert Gearhead
Thread Starter
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Metal on metal does not promote corrosion, rust or any other items. A thin layer of RTV should not be needed. If you need RTV, then the pitting and issues are at an advanced stage.. 10 years old with 8.5 being fillted with DEX.. the manifold and outlet on my car were not pitted or corroded. Leaks will promote corrosion and goop.

The FSM directs us not to use any extra adhesives or sealants for a reason.
BillBoost37 is offline   Reply With Quote
Old 04-18-2007, 11:51 PM   #17
Junior Member
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default

Sorry, I don't agree with you Bill.

My surfaces are perfect and just as MacDrive indicated they will weep ever so slightly. Just enough to create a stain and look like crap after a few months.

The RTV smear is so thin, it is non existent when you remove to change a stat and believe me I've done it a lot on this car in the last 7 years.
2000SilverBullet is offline   Reply With Quote
Old 04-19-2007, 08:44 AM   #18
DINOSAURUS BOOSTUS

Expert Gearhead
Thread Starter
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Ok..well.. GM swapped over and we know they didn't make every decision intellegently. Guess I'm running a test to see if I get any seepage.
BillBoost37 is offline   Reply With Quote
Old 04-19-2007, 09:29 AM   #19
Senior Member
True Car Nut
 
Join Date: Oct 2005
Location: Central Florida
Posts: 7,030
Thanks: 0
Thanked 0 Times in 0 Posts
lash is on a distinguished road
Default

I HATE when I get seepage.....oh.... ...I guess you are talking about the thermostat...

lash is offline   Reply With Quote
Old 04-19-2007, 10:07 AM   #20
Senior Member
Certified Car Nut
 
Join Date: Jul 2003
Location: Robbinsdale, MN
Posts: 15,408
Thanks: 0
Thanked 0 Times in 0 Posts
MOS95B is on a distinguished road
Default

RTV will fix that too. Might get a bit uncomfortable, though.

And, I just personally don't like the idea of no gasket at all. A thin coat of goo gives it a bit of cushion if nothing else. And yes, I mean the thermosts housing this time...
MOS95B is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
t-stat gasket TROYPORT 1992-1999 5 05-10-2008 08:23 PM
Pacesetter paper gasket blows out harofreak00 Performance, Brainstorming & Tuning 12 03-23-2008 05:08 PM
Pre 2000 Bonneviles pontiacGXP Audio (and aftermarket electronics) 4 01-10-2006 05:19 PM
pre series intake or early tunned port intake best for turbo markviiisvt4 Performance, Brainstorming & Tuning 10 01-03-2006 12:46 PM
Paper gasket on Tstat change... arghhhhh brminder 1992-1999 10 03-24-2003 08:54 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 05:14 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.