Go Back   iRV2 Forums > MOTORHOME FORUMS > MH-General Discussions & Problems
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 06-08-2010, 07:19 PM   #1
Senior Member
 
lonestarace's Avatar
 
Join Date: Dec 2009
Location: TX
Posts: 722
Onan Coolant Drain Plug?

Hi All:

I'm trying to drain, flush,and replenish the Onan cooling system. The coolant drain plug in our 1999 HDCAA 10kw Onan won't come out? It turns, but doesn't loosen? It doesn't leak either? I have the parts, operators, service,and Isuzu workshop manuals for it. They just say "remove the drain plug"?

I believe somebody may have over tightened it. It calls for only 5 ft Lbs of torque. The parts manual shows the drain plug with an o-ring that goes directly into the radiator. If the radiator threads are stripped, wouldn't it leak?

What am I doing wrong?

Thanks in advance

Don
__________________

__________________
lonestarace 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 06-09-2010, 12:54 PM   #2
Senior Member
 
GaryKD's Avatar
 
Newmar Owners Club
Join Date: Jul 2006
Location: Wellington, Florida
Posts: 12,321
Hi lonestarace,
If it were me, I'd leave the plug alone. Taking it out may be more trouble than it is worth. Can you pump out the coolant from the fill opening?
__________________

__________________
Gary
2005 Newmar KSDP 3910 + GMC ENVOY XUV 37K lbs Moving Down The Road
The Avatar Is Many Times Around The USA
Nobody Knows Your Coach Like Somebody Who Owns One Just Like Yours
GaryKD is offline   Reply With Quote
Old 06-09-2010, 09:53 PM   #3
Senior Member
 
lonestarace's Avatar
 
Join Date: Dec 2009
Location: TX
Posts: 722
Onan Drain Plug

Hi Gary:

Your probably right.

I'll half to come up with another way to drain it. Maybe take a radiator hose lose? I'll get back in the manuals and see what I can figure out.
__________________
lonestarace is offline   Reply With Quote
Old 06-10-2010, 10:24 PM   #4
Senior Member
 
supercub's Avatar
 
Workhorse Chassis Owner
Join Date: Jul 2005
Location: Modesto, CA
Posts: 413
When you have a tough nut or bolt to unstick.........I'll share a little mechanics secret with you, that frequently works........try tightening first. If you're able TO "BREAK IT LOOSE".....then back it on out, believe me, it works.
__________________
2004 Fleetwood Revolution 38B
supercub is offline   Reply With Quote
Old 06-13-2010, 07:23 AM   #5
Senior Member
 
lonestarace's Avatar
 
Join Date: Dec 2009
Location: TX
Posts: 722
Onan Drain Plug

Thanks, yes I know that trick.

The drain plug is not stuck stuck. It will move cw or ccw with about 20 Lbs of torque. I'm afraid if I keep dicking with it it will start leaking then I'll have a real problem. I plan to pull a radiator hose off.
__________________
lonestarace is offline   Reply With Quote
Old 06-13-2010, 07:41 AM   #6
Senior Member
 
RJay's Avatar
 
Newmar Owners Club
Join Date: Jan 2010
Posts: 4,589
I thought the saying went, "If it ain't broke, don't fix it."
__________________
2007 Newmar DSDP 4023
Discovery is seeing what everyone else has seen and thinking what no one else has thought.
If you want to see what man made go East; if you want to see what God made go West.
RJay is offline   Reply With Quote
Old 06-13-2010, 10:50 AM   #7
Senior Member
 
Bob86ZZ4's Avatar
 
Join Date: Feb 2009
Location: St. Paul, MN
Posts: 383
I'd loosen the hose and try to get as much coolant out. Then I'd seriously look at how much trouble to remove the radiator. If you can get the radiator out you could take that to a radiator repair place and have them fix the drain properly. They could clean it out in their acid tank too and get it working real good.
__________________
Bob86ZZ4 is offline   Reply With Quote
Old 06-13-2010, 06:30 PM   #8
Senior Member
 
lonestarace's Avatar
 
Join Date: Dec 2009
Location: TX
Posts: 722
Onan Drain Plug

Bob86zz4, our summer traveling starts this week.

When we get a break in the action, we'll do a proper fix.
__________________
lonestarace is offline   Reply With Quote
Old 06-13-2010, 07:53 PM   #9
Senior Member
 
Bob86ZZ4's Avatar
 
Join Date: Feb 2009
Location: St. Paul, MN
Posts: 383
Aaahhhh, okay. Have fun, I wish I was heading out soon.
__________________

__________________
Bob86ZZ4 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
Replacing Spark Plug Onan Microlite 2800 tomnorman457 MH-General Discussions & Problems 1 11-27-2009 03:53 AM
1996 Onan 5000 Generator Drain Plug joneldbrat Fleetwood Products Owner's Forum 4 08-28-2008 06:05 PM
Onan coolant change Qx. Toby MH-General Discussions & Problems 4 06-12-2007 07:13 AM
Hot water tank drain, flush & fill SteveG Winnebago Industries Owner's Forum 7 04-30-2007 04:40 PM
WH Drain Plug Problem skigramp Winnebago Industries Owner's Forum 19 04-05-2007 03:24 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:29 AM.


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