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Fuel filter issues
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Supporting Member of Barthmobile.com 6/17
Picture of Richard_Muise
posted
On our way back from Florida, we lost power. We limped into a garage and they changed both fuel filters. They said there was a lot of rust I. The lower one had a lot of rust chips in it. Should I have the tank cleaned?


R.P.Muise 1994 Breakaway/Cummins 5.9/Allison transmission/Spartan Chassis
 
Posts: 664 | Location: Hampden, Massachusetts | Member Since: 10-13-2005Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 6/17
Picture of Richard_Muise
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quote:
Originally posted by Richard_Muise:
On our way back from Florida, we lost power. We limped into a garage and they changed both fuel filters. They said there was a Lot of rust chips in the lower filter. Should I have the tank cleaned?


R.P.Muise 1994 Breakaway/Cummins 5.9/Allison transmission/Spartan Chassis
 
Posts: 664 | Location: Hampden, Massachusetts | Member Since: 10-13-2005Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 1/19
Picture of Steve VW
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A very good question... hmm

Obviously, fuel contamination can be a problem in any diesel. OTOH, large particles are easily trapped by even crude filters. Those that are big enough to see are usually not the problem. Generally, the primary filter is designed to trap water and large particles. If it does and it is not plugged, the fuel passes to the secondary filter designed to trap micron sized particles. This is often the one which loads up and becomes restrictive.

Microscopic particles are the worst problem. If they are small enough they may pass through the filters and end up in injector nozzles. Dissolved contaminants, or dispersed water can pass through and cause gumming or corrosion of injector pumps and nozzles. This is why algae and gelling can be problems as well.

So, is a rusty tank worth cleaning?

How long since the filters were changed? Were they rusty last time... how long ago? Rust indicates moisture in the tank. I would be more concerned about the water than the rust.

Hopefully you did not get water in the fuel when you bought it. Perhaps try some fuel conditioner/additive. Condensation can occur when the tank is not kept full.

Before spending time and money on cleaning, I would try some fresh fuel, keep tanks full, and watch the filters for subsequent rust accumulation. Keep an extra set of filters handy and see what happens.


9708-M0037-37MM-01
"98" Monarch 37
Spartan MM, 6 spd Allison
Cummins 8.3 300 hp
 
Posts: 4116 | Location: Kalkaska, MI | Member Since: 02-04-2011Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 6/19
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I agree with Mr Steve .
Run some fuel tank cleaner additives through it and keep a few extra filters handy . If it continues to be a problem , you can remove the tank and clean it . The tank can be treated with an internal coating if it is rusty inside . One of our fire trucks had to have the tank removed , cleaned and coated . We haven't had any filter issues since .
Originally we were going to buy a new fuel tank , but we couldn't find one to fit . I would have preferred a new one .


Harold
Cat
Sam is 10 year old Miniature Schnauzer
Currently without a coach

KE5WCW
 
Posts: 197 | Location: Mooringsport,LA | Member Since: 05-30-2019Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 12/10
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Vapor pressure for gasoline is high enough that even low tanks have little problem with condensation but diesel is low volatility so condensation is a major problem. It hurt to do it but when I farmed the diesel tank was always kept full during the colder and wetter months, those months that used almost no fuel.


Money can't buy poverty
 
Posts: 904 | Location: St. Charles, MO, USA | Member Since: 10-09-2003Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 6/17
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Thanks for the input.


R.P.Muise 1994 Breakaway/Cummins 5.9/Allison transmission/Spartan Chassis
 
Posts: 664 | Location: Hampden, Massachusetts | Member Since: 10-13-2005Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 1/18
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Richard what size is your tank?

ALso do you have any room for a larger tank. An opportunity to enlarge? Most tanks I believe are now poly (no rust)

I read some old posts from Morris and see he had algae at some time. Algae comes from moisture. I always keep as full as possible.

You know your fuel is fresh with all that you rust proofed the Toad with!

Ed had issues last year. You had issues. What have we all learned? I know changing fuel filters moved up MY LIST.


Dana & Lynn
1997 38ft Monarch front entry
Spartan Mountain Master Chassis
Cummins 8.3 325hp
Allison MD-3060 6 speed
22.5 11R
Cummins Factory Exhaust Brake
9608-M0022-38MI-4C
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1972 22ft
Christened Camp Barth
 
Posts: 1004 | Location: Waseca, Minnesota | Member Since: 12-09-2010Reply With QuoteReport This Post
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