Go Back   iRV2 Forums > iRV2.com COMMUNITY FORUMS > Vintage RV's
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 04-06-2011, 07:34 PM   #1
Senior Member
 
Senior Chief's Avatar


 
Vintage RV Owners Club
Fleetwood Owners Club
Join Date: Jun 2009
Location: Somewhere in the woods in Belfair, WA, WA
Posts: 1,250
What degree thermostat for '89 Southwind w/454

Just pulled the (stuck shut) thermostat out of the 454 in the MH. Its a 195 degree; is that stock?
__________________

__________________
Life rocks when your house rolls
Senior Chief
& the Cheese Queen


Senior Chief is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 04-06-2011, 07:47 PM   #2
Senior Member
 
Aguyfromcalg's Avatar
 
Forest River Owners Club
Ford Super Duty Owner
Join Date: Apr 2011
Posts: 859
195 degree thermostat is hot. That is what I would use for a cold winter. 160 degree thermostat may be more suitable for summer driving
__________________

__________________
2010 Coachmen Freelander 30QB E450 V10
Have Kids Will Travel
Aguyfromcalg is offline   Reply With Quote
Old 04-06-2011, 08:15 PM   #3
Senior Member
 
Workhorse Chassis Owner
Join Date: Dec 2006
Location: La Quinta California
Posts: 523
Quote:
Originally Posted by Senior Chief View Post
Just pulled the (stuck shut) thermostat out of the 454 in the MH. Its a 195 degree; is that stock?
Yes, 195* is stock and in your region it might be best to replace it with a GOOD 195* stat...

Down here in the low desert I use an 180* "Robert Shaw stat" along with a mixture of 30% anti freeze and 70% distilled water, While climbing hills the temps will nudge up to 190*......

Jim
__________________
JimElliott is offline   Reply With Quote
Old 04-06-2011, 08:28 PM   #4
Senior Member
 
Sammie's Avatar
 
Tiffin Owners Club
Join Date: Jun 2006
Location: Southern California
Posts: 1,779
Quote:
Originally Posted by JimElliott View Post
Yes, 195* is stock and in your region it might be best to replace it with a GOOD 195* stat...

Down here in the low desert I use an 180* "Robert Shaw stat" along with a mixture of 30% anti freeze and 70% distilled water, While climbing hills the temps will nudge up to 190*......

Jim
Ditto, What Jim says! I used to own a 1990 Pace Arrow with the 454 Chevy and thats what I ran for a thermostat.

Sammie
__________________
2015 Tiffin Bus 37AP
2016 Ford Explorer
"A Job Begun is Half Done"
Sammie is offline   Reply With Quote
Old 04-06-2011, 08:53 PM   #5
Registered User
 
Winnebago Owners Club
Join Date: Oct 2009
Posts: 848
We had 4 454s;; The EPA. Said 190 Deg; I said. In the cylinder That Runs near 3000 Degrees when it fires; Exhust manifolds That get so hot they brake and snap Bolts; yet some dumbo in the government tells us to run the engine. ( way to hot) and we beleive them.. Heres the bottom line. When oil gets over 230 deg it is basicly a vaper mist; And has near no couchioning affect Hens. The r, rear cylinder will scour the wall and breake the shirt out of the piston. Now with the computer on the engine the throttle body. 1990 And newer They don't like the Lower thermastet .. I have allways run a 165 deg. thermastet and loged over 100000. thousand miles on the engines. Tell the 1994 TB> I run it with the 190 ther. And vollo . at 53000 miles it took the RR< piston out ,, Now Try to tell me they run better with a 190... NO They run worse and not as long.. OH we ran in ARZ> ALaska . And even NORTH DAKOTA;;
__________________
bachler is offline   Reply With Quote
Old 04-06-2011, 08:57 PM   #6
Registered User
 
Winnebago Owners Club
Join Date: Oct 2009
Posts: 848
I almost forgot I raced/built race engines; Ok in the drag It would have to run at most 10 seconds;; And at the sprint car; Maybe 100 miles. So I get a bit worried when it is brought up about race engines;; There Is NO compareso . Other then they are both Combustion engines;;
__________________
bachler is offline   Reply With Quote
Old 04-06-2011, 09:26 PM   #7
Senior Member
 
ccook129's Avatar


 
Damon Owners Club
Workhorse Chassis Owner
Join Date: Jul 2010
Location: Anderson,IN
Posts: 407
The all too commonly used 160 degree thermostat is way too low to be considered for performance or engine longevity. Engine wear increased by double at 160, than at 185 degrees. So then, why do the 160's exist in the first place? The 160's were commonly used in older, open loop cooling systems where only 6 pound radiator caps were used, and low 212 degree boiling points were experienced. In contrast, modern cooling systems can see upwards of 260 degrees in coolant temperature with radiator pressures exceeding 45 pounds. Many early hot rodders found the 160's to be better performing than the 190's, however, the in between "180" appears to satisfy both ends of the spectrum. The correct water temperature is required for the cylinders to achieve a minimum specific temperature in order to allow a fully homogenized Air/Fuel mixture to combust efficiently. Guess what the minimum number is… right! 180 degrees. Even so, you might see some still recommending the lower 160's, for no other reason than to possibly get that last drop of horsepower out, at the high price of dramatically reducing the life of the engine and it's internal components.

For example an NHRA Pro Stock engine makes over 1,400 HP and uses a 0W-5 weight engine oil. A NASCAR Nextel Cup Engine only makes 850 hp but uses a 5W-20 weight oil. How can a more powerful drag motor use a lighter weight oil? The NHRA Pro Stock motor runs at a cool 100 degrees F. A NASCAR Nextel Cup engine runs around 220 degrees F. Our Joe Gibbs Driven XP0 racing oil is 11.5 Centistokes at 100 degrees F, and the XP0 oil is popular with the NHRA drag racers. Joe Gibbs Racing uses the XP1 in our un-restricted NASCAR Nextel Cup engines, and the XP1 is 9.5 Centistokes at 212 degrees F. As you can see, the operating viscosity of the 5W-20 XP1 oil is lighter than the operating viscosity of the 0W-5 XP0 oil due to the difference in operating temperature.
http://www.joegibbsracingoil.com/tra...er/082106.html
__________________
ccook129 is offline   Reply With Quote
Old 04-06-2011, 09:35 PM   #8
Senior Member
 
ccook129's Avatar


 
Damon Owners Club
Workhorse Chassis Owner
Join Date: Jul 2010
Location: Anderson,IN
Posts: 407
YouTube - Testing an F1 Engine

This is Hot
__________________
ccook129 is offline   Reply With Quote
Old 04-07-2011, 08:43 AM   #9
Senior Member
 
Senior Chief's Avatar


 
Vintage RV Owners Club
Fleetwood Owners Club
Join Date: Jun 2009
Location: Somewhere in the woods in Belfair, WA, WA
Posts: 1,250
Thanks, everyone!
__________________
Life rocks when your house rolls
Senior Chief
& the Cheese Queen


Senior Chief is offline   Reply With Quote
Old 04-09-2011, 10:52 PM   #10
Senior Member
 
Join Date: Nov 2009
Posts: 500
I just put a 195' t-stat back in my '88 Itasca 454. The 180' t-stat would start letting coolant into the radiator at 160', then the fan clutch would engage at 170'. Not good for mileage.
The tech at the fan clutch manufacturer said to install a 195' t-stat without the bleed hole so the fan clutch would engage at the proper temps.
I need to test the operation on the road but the fan clutch was working properly in the driveway today after the 195' t-stat was installed.
__________________
leadman is offline   Reply With Quote
Old 04-09-2011, 11:42 PM   #11
Registered User
 
Vintage RV Owners Club
Gulf Streamers Club
Join Date: Oct 2010
Location: Indiana
Posts: 4,954
ccook is correct.. the hotter the better in most cases for better efficiency... modern stats are usually at 200F (95c)
__________________
Midniteoyl is offline   Reply With Quote
Old 04-14-2011, 03:52 PM   #12
Senior Member
 
Join Date: Nov 2008
Posts: 1,358
Quote:
Originally Posted by JimElliott View Post
Yes, 195* is stock and in your region it might be best to replace it with a GOOD 195* stat...

Down here in the low desert I use an 180* "Robert Shaw stat" along with a mixture of 30% anti freeze and 70% distilled water, While climbing hills the temps will nudge up to 190*......

Jim
Agreed' only one thing: make sure the fan cluch works as it should. I had a 1988 southwind with a 454 and the fan cluch was the only problem.
__________________
melvonnar is offline   Reply With Quote
Old 04-14-2011, 05:35 PM   #13
Senior Member
 
4Knights's Avatar
 
Oklahoma Boomers Club
Fleetwood Owners Club
Join Date: Jan 2011
Posts: 1,796
Quote:
Originally Posted by melvonnar

Agreed' only one thing: make sure the fan cluch works as it should. I had a 1988 southwind with a 454 and the fan cluch was the only problem.
What was your fix for the fan clutch?
__________________
Ron & Wendy-Kansas
94 Pace Arrow 34 ft
25 yr Army retired 2006
4Knights is offline   Reply With Quote
Old 04-15-2011, 10:16 AM   #14
Senior Member
 
Join Date: Nov 2008
Posts: 1,358
Quote:
Originally Posted by 4Knights View Post
What was your fix for the fan clutch?
I replaced it with no less than 3 aftermarket clutches, don't go that route, none of them worked properly. I bit the bullet and bought a factory fan clutch, at that time $185.00 (ouch) but it did the job. If you here your fan clutch comming on (it will make a roaring noise) when pulling a long hill, your most likley ok.
__________________

__________________
melvonnar is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
A/C Heater Thermostat HR Endeavor Bill2 Monaco Owner's Forum 1 03-10-2011 12:09 PM
Duo-Therm Thermostat Replacement Problem RonWSl MH-General Discussions & Problems 6 10-20-2010 02:49 PM
Heat/AC Thermostat Thermometer Reads 00 pgeddes RV Systems & Appliances 2 04-25-2010 05:34 AM
Thermostat issue stevelindsey RV Systems & Appliances 2 10-04-2009 07:31 AM
RVP (Winnebago) thermostat interface with Onan EC30 rnabors Winnebago Industries Owner's Forum 9 01-23-2007 01:41 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:23 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.