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Old 04-26-2012, 08:31 PM   #1
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Join Date: Oct 2009
Location: Manitoba,Canada
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Racor Fuel Filter/Water Separator

Our old Winn water separator is beginning to leak a little fuel. The line connections in the clear hose going from the bottom of the filter to the back of the housing are beginning to leak. I understand that parts are no longer available for this unit.

I'm considering moving to the Racor fuel filter/water separator. I see there are three models:
745R30 (rated for 45 GPH)
760R30 (rated for 60 GPH)
790R30 (rated for 90 GPH)

I have no idea which size I should get for the Cummins C8.3 mechanical engine.

Also, when I order I need to specify whether I want 30 micron or 10 micron filter.

I appreciate any thoughts and advice.
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Old 04-27-2012, 01:34 AM   #2
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I recently replaced my old Winn filter due to fuel leak as well. The support group at Raycor suggested the 790R30. I found that model Raycor filter fit the mounting bolt holes perfectly. You will need to buy adapter fittings for the IN and OUT fuel lines. I could not find those fittings locally and eventually located them from a online distributor that sells Parker pipe supplies.
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Old 04-27-2012, 06:40 AM   #3
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My original equipment was Racor. It uses a S3201T filter which is 10 Micron and 90 GPH. You will also need a bowl RK30051, and a water probe kit RK30964. it fits the 200/300/400/600 series filters. Here is a list of Parker filters. Parker filters are used on boats, too.
They are a bit hard to find reasonable, I used EBay and TDS Industries.
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Old 04-27-2012, 09:49 AM   #4
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You want a 30 micron primary and a 10 micron secondary filter. That is the standard. The difference between a 790R30 and a 760R30 flow is only in the size of the filter. The price difference is the cost of the different filter. Also a 790R30 lasts longer than a 60 filter. On my diesel a 790R30 recommended change interval was 10K miles but with the 120 filter it goes to 15K miles. Some advatages of the 700 series are that it has the Water-In-Fuel sensor that will hook directly into the Monaco plug plus it has a control panel for the built in primer pump. That primer pump makes it easy to change filters without having to pour fuel into the filters first and risk dirt contamination. I paid $260 for my 790R30 at the FMCA Perry GA but I think they have gone up a little. If you can't geta good price or can't find one then call Richard Gable at Turbo Diesel & Electric Systems, Inc here in Atlanta at cell 404.444.9510 or office 800.241-4389 and tell him you talked to him at the FMCA Rally a couple of years ago about it and see what his price and availability is now.
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