RV Trip Planning Discussions

Go Back   iRV2 Forums > POWER TRAIN GARAGE FORUMS > Cummins Engines
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-28-2017, 11:43 AM   #1
Member
 
coastalsqrl's Avatar
 
Join Date: Aug 2017
Location: Everywhere
Posts: 42
Question on air filter and fuel filter

I started the maintenance on my C8.3 Cummins and 7.5 gen set. I ran into a couple issues I was hoping for help on. The coach is a 1994 Coachmen Destiny 38. Parts pics attached.

1. I located the air filter for the 8.3, but it's contained inside a large metal sealed tube. I think I found a replacement, called an ECOlite 124923000 for $167. Quite pricey for a filter. Does anyone know if it is needs replaced like a standard $30 filter, or is it a reusable/cleanable type? SOLVED: Found replacement for $122. Non-reusable

2. Replacing the fuel filter: The previous owner included an extra fuel filter, which is a Napa 3405. I ordered my own to be safe from cummins. They said my engine only had one filter, FS1251. When I got the FS1251, it's much smaller than the extra the owner provided. But when I looked at the current one installed, it's a FRAM PS6829, even larger than the NAPA. I'm assuming I should just order the FRAM that's currently on there since it seems to be working, but am not 100% sure. Also, I'm almost certain it would have 2 filters. Maybe the 1251 is the secondary filter, and cummins was confused?

3. Engine coolant: It seems it's recommended to change the filter every oil change. But I've gotten mixed info on the coolant. Some say you need to flush every time, but that can be quite expensive or time consuming. Is that necessary? What is the recommended coolant filter service procedure?

Thanks!
Attached Thumbnails
Click image for larger version

Name:	20170827_133343.jpg
Views:	117
Size:	180.5 KB
ID:	174673   Click image for larger version

Name:	20170827_133721.jpg
Views:	122
Size:	964.7 KB
ID:	174674  

Click image for larger version

Name:	20170827_151434.jpg
Views:	129
Size:	425.8 KB
ID:	174675   Click image for larger version

Name:	20170827_151426.jpg
Views:	119
Size:	455.3 KB
ID:	174676  

__________________

coastalsqrl 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 08-28-2017, 11:57 AM   #2
Senior Member
 
Freightliner Owners Club
Join Date: Apr 2004
Location: Foothills, Yuma, Az
Posts: 970
The air filter you have is the hole thing, you do not take it apart. I cannot answer for what type of filter you need, however this is what my ISL 425 takes:
Filters
https://www.usafilterstore.com/
NAPA
Oil-1361
Fuel-3386,
Air-6790

Oil
LF9009

Fuel
FF5636
FS1003

Air
FAR C62891 2
Napa 500116 - Wix WA10116, H-D Air Filter
$100.24

It is the chassis Mfg that installs the filter. Who is/was your chassis mfg? If still in business call them.
__________________

__________________
Dale&Susan, 08 Alfa Gold, DaGirlsRv Blog
2015 F-150XLT_1600W Solar_880 AmpHr
Magnum_MSH 3812 & PT100
gatorcq is offline   Reply With Quote
Old 08-28-2017, 12:18 PM   #3
Member
 
coastalsqrl's Avatar
 
Join Date: Aug 2017
Location: Everywhere
Posts: 42
Thanks gatorcq. I found the air filter and updated the post. It's a Parker, and I found it online for $122 and $167. LF9009 is what I'm using for the oil filter. Thanks for the input!
coastalsqrl is offline   Reply With Quote
Old 08-28-2017, 04:53 PM   #4
Senior Member
 
Join Date: Sep 2010
Posts: 3,197
2nd fuel filter located above starter on passengers side. Smaller and hard to see and replace. Last Cummins seminar said they now recommending changing 2nd filter every other fuel filter change. Filled both fuel filters with clean diesel before installed them on our Spartan chassis with C series engine.
tom chelbana is offline   Reply With Quote
Old 08-28-2017, 05:13 PM   #5
Registered User
 
Join Date: Nov 2005
Posts: 4,993
Pretty sure Cummins didn't go to the secondary fuel filter until circa 2005 with the advent of common rail injection and the Pegasus engine. Cummins also did away with the coolant filter on the engine at about the same time. Lots of opinions on forum but I change coolant/flush about every five years/50k miles. Key is to keep proper level of DCA in coolant if required, or whatever is needed with newer, extended -life OATS coolants. When DCA coolant was common--0-4 DCA units were provided in new filter when coolant was replaced.
Old Scout is offline   Reply With Quote
Old 08-28-2017, 06:20 PM   #6
Member
 
coastalsqrl's Avatar
 
Join Date: Aug 2017
Location: Everywhere
Posts: 42
Thanks tom chelbana and Old Scout. I will take another look in the manual and see if I can find anything definitive, and if not, take a look where you said. I'm in Miami, and plan on stopping at the first Speedco in south GA to have them look over everything just in case, but I still don't want anything to blow up before I get there. I've driven it about 150 miles so far without issue.
coastalsqrl is offline   Reply With Quote
Old 08-28-2017, 07:29 PM   #7
Senior Member
 
Join Date: Apr 2017
Location: Vista, Ca
Posts: 286
Note that the Napa 3405 is a 12 micron filter, the FS1251 is a 20 micron filer and PS6829 is a 5 micron filter.

Cleaner fuel isn't a bad thing beyond what the manufacture recommends and most likely why the PO unsalted that filter.
__________________
1992 Dodge D250, 18cm housing, getrag 5sp, 4" straight pipe
2015 Pacific Coachworks Sand sport 18SLE
1320Fastback is offline   Reply With Quote
Old 08-28-2017, 10:15 PM   #8
Senior Member
 
Join Date: Apr 2017
Location: Vista, Ca
Posts: 286
*unsalted should of been "installed".

Gotta love autocorrect and not prof reading while watching GoT!
__________________
1992 Dodge D250, 18cm housing, getrag 5sp, 4" straight pipe
2015 Pacific Coachworks Sand sport 18SLE
1320Fastback is offline   Reply With Quote
Old 08-29-2017, 10:20 AM   #9
Senior Member
 
johnhicks's Avatar
 
Join Date: Jan 2011
Location: Wandering below the Gnat Line
Posts: 935
Cummins designates FS as fuel/water filter/separator and FF as fuel filter.

My '93 6BT 5.9 has the FF mounted high up on the engine on the passenger side while the FS is attached to the frame towards the rear, again passenger side.
__________________
-jbh-
johnhicks is offline   Reply With Quote
Old 08-29-2017, 01:56 PM   #10
Member
 
coastalsqrl's Avatar
 
Join Date: Aug 2017
Location: Everywhere
Posts: 42
Thanks for the replies. I think the safest thing at this point is to use the same fuel filter that's on there, since it seems pretty old and is still working fine. So I ordered it and will try installing it this weekend.

As for the air filter, I'm still not confident on the exact reference number I found, and it takes a couple weeks to have made apparently. So hope it fits!

Thanks again,
cb
coastalsqrl is offline   Reply With Quote
Old 08-29-2017, 02:01 PM   #11
Registered User
 
Join Date: Nov 2005
Posts: 4,993
Think I would get the filter that meets Cummins spec.....and not the "one that is on there"..and who knows how well it is working???????
Old Scout is offline   Reply With Quote
Old 08-30-2017, 10:54 AM   #12
Member
 
coastalsqrl's Avatar
 
Join Date: Aug 2017
Location: Everywhere
Posts: 42
Hi Old Scout,
I agree that would be the best route. My frustration is that I gave cummins my engine serial number, and they said my only fuel filter is an FS1251, which is incorrect as far as I understand, as it's the tiny filter normally used as a secondary filter. I will try another cummins dealer today and see if they can give more accurate info before installing any of the 3 I've now been told are correct.
Thanks
cb
coastalsqrl is offline   Reply With Quote
Old 08-30-2017, 11:29 AM   #13
Member
 
coastalsqrl's Avatar
 
Join Date: Aug 2017
Location: Everywhere
Posts: 42
I spoke to another cummins dealer, and they said to use FS1251 also, and that it is the only filter on the engine, so I guess that's the one I'm going with. It's a fraction of the size of the one that's on there but I'll trust what cummins recommends. Still concerned that every other post I've found says the 1251 is for a secondary filter, but will update this weekend when I try to install.
coastalsqrl is offline   Reply With Quote
Old 08-30-2017, 11:51 AM   #14
Member
 
coastalsqrl's Avatar
 
Join Date: Aug 2017
Location: Everywhere
Posts: 42
To try to confirm before I screw anything up, I contacted another cummins dealer in Atlanta. They confirmed that based on the serial #, the FS1251 is the one that came on the engine. However, they said they would recommend using the PS6829/FS1242, since that is the one that's currently on there. They said that an alteration to the heads or something else could have been made, requiring the different filter, and that putting the FS1251 on would not be recommended. So who knows...
__________________

coastalsqrl is offline   Reply With Quote
Reply

Tags
air, fuel



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
Bad Fuel and/or Fuel Filter Question Gary.Jones Entegra Owner's Forum 24 11-16-2016 09:30 AM
New carb and fuel filter question on 86 Tioga Arrow Yurtgirl Class C Motorhome Discussions 3 07-22-2013 10:38 AM
Fuel Line -- Fuel Filter tjshively Alpine Coach Owner's Forum 4 12-08-2011 08:10 PM
8.3 Fuel Leak-Hoses Near Engine Fuel Filter DonBaja Monaco Owner's Forum 2 12-04-2011 07:07 PM
Engine Fuel filter vs Remote Fuel filter cajunjohn Alpine Coach Owner's Forum 12 12-09-2008 07:26 AM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:25 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.