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Foretravel Motorhome Forums => Foretravel Tech Talk => Topic started by: DayDreamer on August 05, 2020, 11:23:05 am

Title: Oil Fill Tube - Leak at Pan?
Post by: DayDreamer on August 05, 2020, 11:23:05 am
It appears I have a small leak from the engine oil fill tube where it connects to the pan.
 
Is there a replaceable gasket or o-ring? If so, does anyone have a part number?
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: John44 on August 05, 2020, 11:31:32 am
Would clean that area first to make sure where the leak is,then get your serial number and get on the Cummins site and register your engine and you can look up the parts yourself.
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: dans96u295ft on August 05, 2020, 11:44:57 am
Clean and silicone back in. Better than an o-ring
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: DayDreamer on August 05, 2020, 11:53:13 am
Would clean that area first to make sure where the leak is,then get your serial number and get on the Cummins site and register your engine and you can look up the parts yourself.
Thanks for that info.  I did not know there was a way to do that..  I will definitely register so I can look up parts.
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: DayDreamer on August 05, 2020, 11:54:00 am
Clean and silicone back in. Better than an o-ring
RTV black work?
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: craneman on August 05, 2020, 12:01:53 pm
Works for me just get a good brand not HF
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: oldguy on August 05, 2020, 12:25:13 pm
As John said clean the area and the tube. My tube was cracked and had been cracked before and welded. I re welded it and was
going to make a support bracket for the tube, so this was a good reminder and I will make  it today.
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: Chuck & Jeannie on August 05, 2020, 01:10:52 pm
I did not know there was a way to do that..  I will definitely register so I can look up parts.
Cummins QuickServe Online (https://quickserve.cummins.com/info/index.html)

Genuine Cummins Parts (https://parts.cummins.com/#/)

Join Cummins PowerClub | Cummins Inc. (https://www.cummins.com/na/parts-and-service/cummins-powerclub)
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: DayDreamer on August 05, 2020, 01:52:21 pm
As John said clean the area and the tube. My tube was cracked and had been cracked before and welded. I re welded it and was
going to make a support bracket for the tube, so this was a good reminder and I will make  it today.
Great suggestion.  I assumed it is leaking from the gasket, but could definitely be a crack.  I will clean it up and check.  Does not appear to be leaking much, but certainly prefer to eliminate leaks when practical.
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: DayDreamer on August 05, 2020, 02:01:55 pm
Cummins QuickServe Online (https://quickserve.cummins.com/info/index.html)

Genuine Cummins Parts (https://parts.cummins.com/#/)

Join Cummins PowerClub | Cummins Inc. (https://www.cummins.com/na/parts-and-service/cummins-powerclub)
What is the difference in the free subscriptions and the paid subscriptions?  Just the number of serial numbers you can register?
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: Chuck & Jeannie on August 05, 2020, 02:39:09 pm
Just the number of serial numbers you can register?
Free subscription limited to 5 serial numbers.
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: Pamela & Mike on August 05, 2020, 03:03:19 pm
DayD,

After cleaning up the area you will find 4 bolts. Remove these and the tube will come loose.  Our OEM gasket was a cork/rubber somewhat rectangle gasket. We went to our local gasket supply company and they gave me a piece of gasket material big enough to cut out a new gasket.  One thing you need to make sure that the mounting plate is flat. When the fill tube was welded to the plate it can cause warpage. If yours is warped the gasket will have a hard time of sealing. A good file will be your friend, as it don't have to be perfectly smooth just flat.

Mike
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: Barry & Cindy on August 05, 2020, 10:03:16 pm
Sorry that your dip stick tube is leaking. This has been a weak link causing breakage, probably because the dip stick housing tube is not well supported.

As a preventative measure before ours gave us trouble, we reinforced the tube with braces, trying to take stress off the place where the tube slips into the lower side of engine.

Here is info on our brackets:

Dip stick tube - Page 2 (http://www.foreforums.com/index.php?topic=11562.msg59663#msg59663)

Dip stick top bracket repair (http://www.foreforums.com/index.php?topic=17105.msg112765#msg112765)
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: oldguy on August 05, 2020, 10:10:23 pm
His problem is the fill tube and that's a good idea for the dip stick.
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: John44 on August 05, 2020, 10:40:14 pm
2 completely different engines.
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: MisterEd on August 05, 2020, 11:34:17 pm
@DayDreamer Dreamer

Ours looks about like yours... just haven't got to fixing it yet. A very small leak can make a bit of a mess, over time.

Greg
Title: Re: Oil Fill Tube - Leak at Pan?
Post by: Barry & Cindy on August 06, 2020, 12:06:39 pm
Oops, on our dip stick reinforcement not relating to the M11 oil fill leak on a different engine.

I will leave our wayward posting, but know it is obviously for a Cummins C-8.3 engine.

Thanks for the correction.