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03 /29/ 24, 4:30amLogin ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 1[2]345678910 ]
Subject: Re: Racor Filter Change


Author:
Ernie
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Date Posted: 12/ 25/ 09, 2:40pm
In reply to: Stu 's message, "Racor Filter Change" on 12/ 24/ 09, 8:41pm

Stu- I use Napa Gold #3799 for Racor. I use Napa Gold #3120 for engine fuel filter. I bought a small container/gas can and put about 1 gallon of diesel in that. I take the lid off the Racor and twist the filter out. I then insert the new element and add some fresh diesel. It takes a little while for it to settle and then I top it off, add the new gaskets and put the lid back on. The engine filter I add diesel to the filter and when it is full to the top, install it. Then I crank the engine. If it has been cold- like here in Texas, I'll have turned the block heater on a few hours prior. I never have had a problem getting air into the lines with this procedure. Ernie- 83PT40- 6v92 300,000 miles and running strong

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Replies:
[> [> Subject: Re: Racor Filter Change


Author:
Stu
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Date Posted: 12/ 26/ 09, 10:43am

Thanks
I have two other fuel filters, a primary and a secondary, and my concern is that the Racor guage on my overhead, and it seems we have the same coach, is getting into the yellow. Since red is next, I expect that is not good. Would it be your guess that it is the Racor filter, or that the Racor is sensing the other filters are clogging up from age?

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[> [> [> Subject: Re: Racor Filter Change


Author:
Ernie
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Date Posted: 12/ 26/ 09, 3:58pm

Stu- the gauge is for the Racor. I drove mine when it was in the red, last month. Bus ran sluggish. Switched them and are good to go. Do you have 1 or 2 filters at the back of your engine? Some coaches have been modified to run just the Racor and one primary spin on which is my setup. Ernie in Texas

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[> [> [> [> Subject: Re: Racor Filter Change


Author:
Stu
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Date Posted: 12/ 27/ 09, 9:54am

Thanks. I have two, so I run the Racor, then a primary and a secondary. I bought the part, and I am going to do the change out in a few days, and for the heck of it, I will change all 3 together so its easier to keep track of when it was done. Do you know if the generator pulls diesel through that Racor system also, or if the ONLY fuel filter the generator has is the one on the side of it?

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[> [> [> [> [> Subject: Re: Racor Filter Change


Author:
Ernie
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Date Posted: 12/ 27/ 09, 2:54pm

The only thing I know about the generator fuel is that on mine, there is a smaller racor under the front bumper that supplies the generator. You can change that one, same procedure. The filter on the Perkins is a pain to refill and I have wound up priming the engine so it will fire.

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[> [> [> [> [> [> Subject: Re: Racor Filter Change


Author:
Shane Fedeli
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Date Posted: 12/ 29/ 09, 7:20am

Hi Stu,
Just be sure that you top off the spin-on filters on the back of the Detroit engine with VERY CLEAN fuel. Fill them to the point of almost overflowing- you can't afford to get any air or dirt in the system at that point. The Racor is a little more forgiving- it will purge air by itself if you get any in there. Like Ernie said, it still needs topped off with clean fuel too. Then genny should have a little, baby racor filter that is located up behind the right front bumper. I use 2 micron filters in the Racor's and 10 micron filters on the engine. On average, I change the Racor filters twice as often as the others. They are cheaper and easy to swap out while on the road.

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[> [> [> [> [> [> [> Subject: Re: Racor Filter Change


Author:
Don
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Date Posted: 12/ 30/ 09, 4:14pm

Am I reading something wrong here? I always thought that the filters became finer the closer to the motor. So the larger (Racor) 10 micron filter would clear the bulk of contaminents and the smaller engine mounted filter at 2 microns, and very easy to clog, would be the final filtration stage.

I did place the little red O-ring on the T-Handle on the racor on the wrong side of the racor filter top once. Lost prime at a camp ground, very embarrising, made plenty of white smoke. Kind of like the time I didn't blow the leaves of the roof of the bus and they clogged the snorkel air intake and collapsed it.

Don't forget that some of the smaller racor filters for our generators need a free spacer installed in the filter body to insure proper filtration; a big racor factory oops as I recal.

Regards,

Don 1987 PT40

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