Boxdin
Vanning.com logo
We host with and recommend Your-Site.Com - This site works best with FireFox - this site is powered by UBBCentral



Site Navigation


Advertisements
Recent Posts
Scooped Dodge
by Reed
15 minutes 48 seconds ago
Pontiac motor in a Chevy
by JEEPNHAL
45 minutes 36 seconds ago
New G20 shorty
by JEEPNHAL
Today at 06:38 PM
My 1979 G10
by JEEPNHAL
Today at 06:33 PM
New to me Astro
by johncj5
Today at 04:56 PM
E85 in non E 85 van
by Lionvan
Today at 04:17 PM
New (old-ish) non-running van...
by Reed
Today at 03:23 PM
Obligatory newbie post.. any other vanners in RVA?
by Rusty_Pancelode
Today at 11:47 AM
The black bitch...restoration
by Capn Scurvy
Today at 08:56 AM
My 75 Chevy Van
by lostinthe70eees
Today at 08:30 AM
Featured Links


-->
Cluster Map
Locations of visitors to this page
Topic Options
Rate This Topic
#570722 - June 25th 2012 1:13 pm Leaky Thermostat Housing
strangeblue Offline
newbie

Registered: April 01st 2012 8:07 pm
Posts: 37
Loc: Chattanooga, tn
I changed out my water pump this weekend...

almost did my timing chain... but chickened out. (afraid I might screw something up.)

But anyways. I bought a new thermostat and rubber seal.

but everytime I start the car. It Leaks...
In between the seal and out of the screws...

I have tightened the screws as good as I can.

Do I need to use some liquid seal of some sort?

What to do??

Click for large view - Uploaded with Skitch

Click for large view - Uploaded with Skitch
_________________________
"Trade what you got - To get what you want"
1995 Chevy G20 Custom Choo Choo

Facebook Fan Page - click here to visit us


Top
#571107 - June 26th 2012 9:59 pm Re: Leaky Thermostat Housing [Re: strangeblue]
Uncle_Fester Offline
Festerus Vannimus

Registered: May 26th 2007 10:41 pm
Posts: 9034
Loc: On Route 66 in Bethany Oklahom...
First off, good job so far! I would clean that black stuff off the mating surface with a wire toothbrush, then a THIN coat of blue RTV around the mating surface of the T-Stat housing ( the dome part you took off), put it all together and DO NOT OVER TIGHTEN! I install mine with a 1/4 drive ratchet so as not to over tighten. Give it about ten min or so to "set up" before you start the motor.

This is how I do my t-stat swaps twice a year. I run a 160* in the summer, and a 195* in the winter. SEAMS to keep it cooler in the summer and better heat in the winter. . .
_________________________
My vans,

1)The 1991 Dodge B250, J.Y.D.


Founder & President of Sooner or Later United Truckers and PROUD TO BE A S.L.U.T. ! !

Top
#571152 - June 27th 2012 7:26 am Re: Leaky Thermostat Housing [Re: strangeblue]
Bullet Offline
old hand

Registered: September 10th 2009 9:14 pm
Posts: 1016
Loc: Bristol, TN
Is it just seeping a tiny bit or is it more than that? Clean the recess in the intake, get a good piece of 220 grit wet/dry sandpaper and place it on a flat surface, attach it some way, 2" tape all the way around, then put your thermostat housing on it and work it in a figure 8. Do this about 20 times and check the bottom, if it's warped you will notice some areas not touched by the sanding. Keep doing this until its nice and flat, you may have to use a couple pieces of sandpaper. If it's warped bad, you may be time and money ahead to replace it. It should seal with the rubber O-ring without using any RTV, but a thin, thin coat of sealer wont hurt anything. Don't over torque the bolts as this can cause problems too.
_________________________
'85 GMC Shorty
'99 AWD Astro
'55 Chevy 150 ex-racer
"I thought you weren't allowed to talk to guys with vans??"

Top
#571196 - June 27th 2012 12:17 pm Re: Leaky Thermostat Housing [Re: strangeblue]
NateNCBV Offline

Administrator

Registered: August 23rd 2005 12:00 pm
Posts: 20415
Loc: Brooklyn Park, Maryland, USA
If the bolts thread into a water jacket, you will need some thread sealer on them.
_________________________
Nate Breece
2%
North Chesapeake Bay Vans
--------------
1994 Dodge B250 Elk Conversion (5.2L/A518)
2008 Dodge Caravan (3.8L)

Top
#571215 - June 27th 2012 1:35 pm Re: Leaky Thermostat Housing [Re: strangeblue]
vanatic05 Offline

Vanaholic


Registered: June 02nd 2005 12:00 pm
Posts: 5148
Loc: Auburn IL
Also it looks like you have another gasket in the block still remove the old gasket...
_________________________
Darrin Bentley
Chairman 2015 Nationals
Director: Vanatics Van Club
Member of Bad Boys of Illinois
92 GMC 3500 454/4bbl


roiboi65@yahoo.com
www.cardomain.com/ride/2385823/1


Top
#571306 - June 27th 2012 9:31 pm Re: Leaky Thermostat Housing [Re: strangeblue]
Phoenix Offline
pooh-bah

Registered: September 13th 2008 4:42 pm
Posts: 3391
Loc: Evansville, Indiana
If you have a chrome housing they all leak until you take them to a belt sander and make them flat on the bottom... Just a thought , it is what I had to do.
_________________________
Cheers!

Been There, done that, Member of those....

Built for comfort not for speed angel....Well speed too !...smile

I am a vanner, Promise me the world, give me nothing, I'll be back ... next year !

Top

Upcoming Events
AdSense
Instagram Feed
Who's Online
0 registered (), 2 Guests and 8 Spiders online.
Key: Admin, Global Mod, Mod
Newest Members
Lyle, BigBeau, owlcore, Shahadey, 72152
7923 Registered Users
Top Posters (30 Days)
lukester 120
Reed 110
Uncle_Fester 82
newkirkinc1 77
jules73 77
HighwayStar 76
kawrider 71
frscke1 65
86ed 62
Captain_E 62
Forum Stats
7924 Members
70 Forums
30999 Topics
470078 Posts

Max Online: 177 @ May 08th 2013 5:58 am

This site works best with
Download Firefox