Jayco RV Owners Forum
 


Reply
 
Thread Tools Display Modes
 
Old 08-10-2015, 05:10 PM   #11
Junior Member
 
Join Date: Aug 2015
Location: Colorado Springs
Posts: 8
I have left the valve in the open position all day with no noticeable leaks or odors. Your suggestion about a full tank in a cool environment dovetails with what I'm thinking. I was thinking if the tank fill level was high and the change in elevation of running to Colorado (plus the heat of the day) caused the relief valve to pop.
__________________

mtnrv is offline   Reply With Quote
Old 08-10-2015, 05:24 PM   #12
Senior Member
 
Murff's Avatar
 
Join Date: Mar 2015
Location: Seattle area
Posts: 2,115


Murff
__________________

__________________
Murff
2015 White Hawk 20MRB (It's last year)
2011 F150 Non EcoBoost (5.0)
Andersen Hitch
Murff is offline   Reply With Quote
Old 08-10-2015, 05:38 PM   #13
Senior Member
 
Jagiven's Avatar
 
Join Date: May 2012
Location: Minnesota
Posts: 4,109
I am not very far Milan with the built in tanks. There should be a relief valve. It could have poped. But they are designed to handle a wide range of conditions. If the tank was filled at sea level and you went over a high mountain pass I might see it pop. But still there is not a lot of atmospheteic pressure change.I would crawl under the unit check the hoses. The turn the tank back on and check for leaks, using a strong soap solution. I like to use kid's bubbles, cheap and works good.
Jagiven is offline   Reply With Quote
Old 08-10-2015, 06:12 PM   #14
Senior Member
 
Join Date: Aug 2011
Location: Missouri City, The Republic of Texas
Posts: 3,006
Quote:
Originally Posted by Robbbyr View Post
I see some are asking you about the pigtail, which I believe is only present on towed RVs with changeable DOT propane tanks. Our Class C units have an onboard ASME propane tank, and I believe they do have a spring-loaded relief valve that will reset once it has "popped" and relieved the excess pressure.

It is possible the tank was very full in a cooler environment and once in a hotter environment it caused the liquid propane in the tank to gas off without enough available vapor space to accommodate it. Hence, a relief valve event.

You are right about Akron, we had the Bridgestone Invitational golf event at the famour Firestone Country Club here in Akron; the Pro Football Hall of Fame Induction Ceremony in Canton just to our south, and the Twinsburg "Twins Days" going on to our north. All draw people from many other areas to northeast Ohio.
Great point Robby. I was thinking a changeable tank. Reading the following posts it sounds like the riddle may have been solved. Am hoping so! Mtn, hope I didn't muddy the water too much.
__________________
Cheers,
T_

2013 F-350 CC SB 2WD 6.7PS
2013 Eagle Premier 351 RLTS
-SOLD- 2012 X23B
-SOLD- 2003 Ford Expedition 5.4, Bilstein shocks
RedHorse1 is online now   Reply With Quote
Old 08-10-2015, 06:27 PM   #15
Senior Member
 
wags999's Avatar
 
Join Date: Jan 2015
Location: Surprise
Posts: 1,497
The pressure inside the tank does not change with elevation. If it was a tire, yes it is effected, but a steel tank is not effected. A hose could be effected but it is low pressure once it leaves the regulator.
__________________
2011 Toyota Tundra double cab
2015 27RLS
wags999 is online now   Reply With Quote
Old 08-10-2015, 07:00 PM   #16
Site Team
 
norty1's Avatar
 
Join Date: Jan 2011
Location: Charleston, SC
Posts: 12,040
Does the Greyhawk have a permanently mounted propane tank?
__________________
Moderator
2011 351RLTS Eagle, Mor/Ryde suspension & pin box
06 F350 Lariat PSD, SRW, LB, CC, EGR delete kit, 16K DrawTite hitch, Timbrens, TST TPMS

Can't find what you're looking on JOF? Try:Jayco Owners Forum Custom Google Search
"It's easier to fool people than to convince them that they have been fooled." - Mark Twain
norty1 is offline   Reply With Quote
Old 08-10-2015, 07:01 PM   #17
Senior Member
 
dougfir1's Avatar
 
Join Date: Sep 2012
Location: Selah, Washington
Posts: 131
Relief Valve

Every propane tank has one. On a 20# cylinder it is located on the back side of the main valve. I am inclined to think the tank may have been sitting out in the hot sun and it built up too much pressure. In that it has not repeated may mean it was just doing its job. Have it checked by a propane service man.
__________________
2011 Jayflight 23FB G2
2003 Chevy 1500 4x4
Wife Peggy and 2 Beagles and a rescue Cocker Spaniel
2007 Yamaha Grizzly 400 ATV and Yamaha 2000 watt Genny
Me/retired insurance claims and DW/retired RN.
"If the women don't find you handsome, they should at least find you handy."-Red Green
dougfir1 is offline   Reply With Quote
Old 08-10-2015, 07:37 PM   #18
Senior Member
 
us71na's Avatar
 
Join Date: Jun 2013
Location: McKean, PA
Posts: 428
All propane tanks are equipped with a safety valve. It sounds like yours got too hot and relieved the pressure. Modern tanks are also equipped with an overfill protection device (OPD) which prevents them being filled too full of liquid. It is possible your tank was overfilled despite the overfill protection by an inexperienced operator. Tanks have to have some gas space above the liquid so the liquid can expand when it gets warm. If the pressure gets too great the safety valve will pop. I believe that they automatically reset.
__________________
2011 Skylark 21FKV
us71na is offline   Reply With Quote
Old 08-10-2015, 07:37 PM   #19
Senior Member
 
Robbbyr's Avatar
 
Join Date: Dec 2014
Location: Akron
Posts: 1,339
A Greyhawk is a Class C motorized RV and has a permanently mounted horizontal ASME tank.

Is there a chance your propane tank is seeing excessive heat from an external source? On my former Class C (Thor Chateau) the propane tank was located right behind the cab. I had the outdoor sensor for my thermometer mounted to the access door to the tank. After driving for a time that thermometer would rise to 140 degrees! I ended up installing an additional heatshield on the exhaust pipe/catalytic converter and it improved it considerably.
Robbbyr is online now   Reply With Quote
Old 08-10-2015, 07:42 PM   #20
Site Team
 
norty1's Avatar
 
Join Date: Jan 2011
Location: Charleston, SC
Posts: 12,040
Thanks, that is why I asked. I am sure it has a method of venting in case of over pressure. I have had them let off some pressure while transporting portable tanks home in my truck. After they equalized all was well.

The heat buildup may be something to check but I'm betting it will be ok to try some appliances to verify that all is well.
__________________

__________________
Moderator
2011 351RLTS Eagle, Mor/Ryde suspension & pin box
06 F350 Lariat PSD, SRW, LB, CC, EGR delete kit, 16K DrawTite hitch, Timbrens, TST TPMS

Can't find what you're looking on JOF? Try:Jayco Owners Forum Custom Google Search
"It's easier to fool people than to convince them that they have been fooled." - Mark Twain
norty1 is offline   Reply With Quote
Reply

Thread Tools
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


» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 03:18 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.