Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×

Go Back   Montana Owners Club - Keystone Montana 5th Wheel Forum > GENERAL DISCUSSIONS > General Discussions about our Montanas
Click Here to Login

Thread Tools Search this Thread Display Modes
Old 10-10-2014, 11:37 AM   #1
Montana Master
Join Date: Jan 2013
Location: Depends on temps
Posts: 1,648
M.O.C. #13157
Drain Valve Lubricant

Hello All,

The front grey water valve (shower and bath sink) is getting rather stiff to operate. Not sure if it is the cable or the valve it's self. The Black and rear Grey operate very smoothly. ('14 3150RL) (2 cable operated valves in utility area.) (1 cable operated valve behind left rear wheel Kitchen Tank)

Looking for suggestions on either lubing the cable or valve.

Thanks Jim

2012 Ram Laramie 3500 DRW 4x4 3.73 Tow Max Pkg B&W Companion 60 gal RDS aux fuel tank. 2014 Montana 3150RL, 2 A/C's, Leather, 6 Point Jacks, Splendede WD2100XC, Mor/ryde X-Factor, Duravis 250 tires with TST 507RV monitors. 2 x Honda EU2000's
jlb27537 is offline   Reply With Quote
Old 10-10-2014, 11:40 AM   #2
Tom S.
Montana Master
Join Date: Aug 2007
Location: Waterford
Posts: 3,693
M.O.C. #7500
Use a silicone spray or liquid as it is neutral (won't hurt any rubber, plastic or vinyl parts) and won't attract and trap dirt like oil or light grease will. Nor is it as messy.
Tom S. is offline   Reply With Quote
Old 10-10-2014, 12:15 PM   #3
Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,345
M.O.C. #12156
No way to lubricate the cable run if that is the problem. Corrosion and crud builds up inside the cable sleeve.
Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
1retired06 is offline   Reply With Quote
Old 10-10-2014, 12:55 PM   #4
Montana Master
WaltBennett's Avatar
Join Date: Mar 2013
Location: Hanover
Posts: 1,455
M.O.C. #13325
The problem is the same as with (older) motorcycle and bicycle cables. Liquid graphite works well with them and should work well with these (I've never had this problem).
WaltBennett is offline   Reply With Quote
Old 10-10-2014, 02:15 PM   #5
Bruce Lenhardt
Montana Fan
Join Date: Dec 2005
Location: Grain valley
Posts: 356
M.O.C. #5098
Send a message via ICQ to Bruce Lenhardt
I have had the problem with both of my Montana's and now with the SOB. My problem is with the black tank only. I believe it is the valve that causes the problem. I am using Thetfords valve lubricant and it definitely works. After I dump and rinse the tanks I add a two or three gallons of water and pour in some of the lubricant.
Bruce Lenhardt is offline   Reply With Quote
Old 10-10-2014, 04:31 PM   #6
Montana Master
rohrmann's Avatar
Join Date: Oct 2012
Location: Box Elder
Posts: 3,655
M.O.C. #12947
Same here, had tight black valve, and the Thetford valve lube worked. Added 4 oz of the lube along with my normal tank treatment and some Calgon. After several cycles, the valve was back to operating easy.
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
rohrmann is offline   Reply With Quote
Old 10-11-2014, 12:56 AM   #7
Montana Master
Join Date: May 2011
Location: Fayetteville
Posts: 4,200
M.O.C. #11401
Calgon works well. Also, you can take the wall down behind the Ser vice center, unbolt the cables, run lubricant down the housing around the shaft , it will free them up. "Break Free" gun lube works well.
HOOK is offline   Reply With Quote
Old 10-11-2014, 03:37 PM   #8
Seasoned Camper
Join Date: Apr 2004
Location: Sioux Falls
Posts: 54
M.O.C. #1405
We had a 2011 3400RL with the same problem and started spraying the tee handles with WD40 every time I dumped and the problem went away. I hope this helps.

thundercat is offline   Reply With Quote

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
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ice maker drain valve jasonreaume Maintenance 8 12-03-2015 02:55 AM
Galley drain valve PatnRich General Discussions about our Montanas 4 03-21-2010 03:54 PM
Water tank drain valve drhowell Additions & Improvements 6 09-23-2005 02:11 PM
low drain valve question harleyrider General Discussions about our Montanas 2 10-30-2004 12:36 PM
Grey water drain valve Montana_196 Additions & Improvements 0 03-06-2003 08:18 AM

Powered by vBadvanced CMPS v3.2.3

This website is not affiliated with or endorsed by Montana RV, Keystone RV Company or any of its affiliates. This is an independent, unofficial site.

All times are GMT -6. The time now is 06:20 PM.

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2021, vBulletin Solutions, Inc.