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Topic: Filter Issue to Watch For (Read 620 times) previous topic - next topic

Filter Issue to Watch For

I was changing fuel and coolant filters today and found that my secondary fuel filter was damaged. The other fuel filter is up high and protected but this one hangs down pretty low. It looks like it scraped on something but I can't imagine what. Sure glad it didn't puke out fuel while running. Anyhow, just something to keep an eye on for those of you with the M11 engine.
jor
93 225
95 300
97 270
99 320

Re: Filter Issue to Watch For

Reply #1 –
I suspect that is the PRIMARY fuel filter, and therefore the one with 10-30 micron element.

At least in most cases the primary has the drain on it.

Remember:  Fuel tank, primary fuel filter, lift pump, secondary fuel filter, engine/injection pump.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Filter Issue to Watch For

Reply #2 –
Thanks, Brett. I'm thinkin' you are correctomundo as that filter is a 10 micron filter. Both of the filters, however, have drains. The other one has a 12 volt priming pump.
jor
93 225
95 300
97 270
99 320

Re: Filter Issue to Watch For

Reply #3 –
I would trace the fuel lines-- you sure want the proper micron filters in the proper "order".

A 10 followed by a 2 or 5 is fine.

A 2 or 5 followed by a 10 is NOT.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Filter Issue to Watch For

Reply #4 –
Quote
The WINN filter sysyem would have been used  as Racor had not taken over the WINN line until after 2004.
The filter in the photo is a Parker 700 Series (790R30). It replaced the original Winn (30 micron, the one with the O-rings) and was installed in the same location. As I indicated in my first post, it's out of the way.

Re the other one (primary probably), our ISM had the same filter located in the same place as this M11.

Quote
I would trace the fuel lines-- you sure want the proper micron filters in the proper "order".
I'll do that.
jor
93 225
95 300
97 270
99 320

Re: Filter Issue to Watch For

Reply #5 –
That filter mounts on the passenger side of the engine underneath, so it is lower than the pan and can get hit by road debris and have the drain knocked off and that will stop you for sure, have had experience with that when a road gator broke off the drain on the filter. These are original equipment filters which come after the water separator. The old wins system probably quit and was replaced by the racor which is mounted up high at the rear of the coach
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: Filter Issue to Watch For

Reply #6 –
Ron,
Thanks, not having the 95 300SE, it seems sort of goofy having the filter mounted so low, but that is just my dumbass thinking.  Guess I am not up on the NEW thinking.
Happy with the old Winn/Parker/Racor 200200 system, I have great access for parts and I like it, because it works great.
Cheers,
Dave M