Leaky Primary Drain Plug?
09-23-2017, 07:50 PM
Seasoned HDF Member
Thread Starter
Join Date: Sep 2010
Location: Indiana
Posts: 10,226
Leaky Primary Drain Plug?
I am finding a spot of oil directly under my primary drain plug.
The underside of the primary was oily when I changed all 3 holes the other day and all of the drain plugs had some type of dope on the threads.
Of course, the warranty ran out the end of August so......
Do you all put dope on the threAds or just change the o rings?
09-23-2017, 08:01 PM
Join Date: Aug 2014
Location: Kansas
Posts: 124
Thread tape and new o-rings. Be sure all drain plugs are tight.
09-23-2017, 08:02 PM
Join Date: May 2008
Location: Rolla, Missouri
Posts: 4,432
No sealant of any type on any of mine.
The "O-Ring" is what seals it and keeps it from leaking.
Make sure the mating surface is good and clean, and there are no nicks or tears in the o-ring.
I've never had one leak on any of the three plugs.
09-23-2017, 08:16 PM
Join Date: Mar 2014
Location: East Coast
Posts: 1,973
New O rings and a little plumbers dope.
09-23-2017, 08:23 PM
Seasoned HDF Member
Thread Starter
Join Date: Sep 2010
Location: Indiana
Posts: 10,226
Well, I guess I'm going to need to watch the primary level until the next change. I sure wish there was a stick to pull.........AND, I hope it's just the plug........
09-24-2017, 06:24 AM
Join Date: Dec 2008
Location: Tonopah Az
Posts: 3,703
DON'T put junk on the threads the O ring is the seal change O ring every time and torque plug.
09-24-2017, 06:29 AM
Join Date: Mar 2009
Location: Snow Hill, NC
Posts: 23,464
I use dope on all 3 drain plugs and a new o ring...
09-24-2017, 07:43 AM
Join Date: Aug 2013
Location: NC
Posts: 506
I just use a new O-ring every change and torque the plug to the proper spec. No pipe dope or thread tape. Mine never leaks.
09-24-2017, 07:22 PM
Seasoned HDF Member
Thread Starter
Join Date: Sep 2010
Location: Indiana
Posts: 10,226
Now you guys have me worried. I'm going to clean it up and confirm where the oil is coming from.
I've never used any kind of dope or tape on any oil plug.......
09-24-2017, 07:29 PM
Join Date: Sep 2017
Location: NEBRASKA
Posts: 36
I always use new o-ring each time I drain it. They are cheap. Just don't over tighten it.