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Jake
Joined: 31 Jan 2012
Posts: 171
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 Posted: Mon Mar 16, 2015 8:57 am Post subject: |
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Maybe someone could refresh my memory. Probably nothing to do with outboards but aren't there certain installs where the racor (filter with drain) are not permitted?
Jake |
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Chester
Joined: 04 Sep 2006
Posts: 1176
City/Region: home
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Sold to lovely couple
Photos: Chester
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| Posted: Mon Mar 16, 2015 10:44 am Post subject: |
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| Can't have the clear bowl on inboard engine applications. They have a metal bowl with a drain that is OK for those applications. |
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Jake
Joined: 31 Jan 2012
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| Posted: Mon Mar 16, 2015 11:07 am Post subject: |
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| Chester wrote: | | Can't have the clear bowl on inboard engine applications. They have a metal bowl with a drain that is OK for those applications. |
Thanks Chester, I wonder why the difference? |
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BrentB
Joined: 15 Jul 2006
Posts: 4419
City/Region: Greenwood
State or Province: IN
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| Posted: Mon Mar 16, 2015 11:40 am Post subject: |
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I have read that Aquabloc is chemical treatment to the filter media.
This article
at
http://continuouswave.com/whaler/reference/fuelFilter.pdf
None of the tested filters will stop water once the filter is full and each filter tested will trap at least one and half cups of water before allowing it to pass to your OB
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Larry H
Joined: 02 Nov 2003
Posts: 2041
City/Region: Tulalip,
State or Province: WA
C-Dory Year: 1991
C-Dory Model: 22 Cruiser
Photos: Nancy H
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| Posted: Mon Mar 16, 2015 1:56 pm Post subject: |
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Jake,
Inboard gasoline engines and fuel systems are regulated by the US Coast Guard. Those regs do not allow for plastic bowls and drain valves.
Outboard engine boats are exempt from those inboard regs.
For maximum safety, follow the inboard regs.
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Larry H
A C-Brat since Nov 1, 2003
Ranger Tug 27 ex 'Jacari Maru' 2017 - 2022
Puget Trawler 37 ex 'Jacari Maru' 2006-2017
1991 22' Cruiser, 'Nancy H'--1991-2006 |
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Blueback
Joined: 02 Oct 2004
Posts: 235
City/Region: Qualicum Beach, Vancouver Island
State or Province: BC
C-Dory Year: 1990
C-Dory Model: 16 Angler
Vessel Name: Blueback
Photos: Blueback
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| Posted: Mon Mar 16, 2015 5:25 pm Post subject: |
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| Larry H wrote: | Both Mercury and Evinrude sell a fuel filter that has a screw on metal canister. (Like an oil filter)
No plastic bowl or drain to worry about. |
Right on Larry,
I have a Mercury with no problems.
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AstoriaDave
Joined: 31 Oct 2005
Posts: 994
City/Region: Astoria
State or Province: OR
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| Posted: Mon Mar 16, 2015 6:07 pm Post subject: |
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| Jake wrote: | | Chester wrote: | | Can't have the clear bowl on inboard engine applications. They have a metal bowl with a drain that is OK for those applications. |
Thanks Chester, I wonder why the difference? |
Jake, An IB installation has the fuel filter within the engine housing, open to the bilge. If a plastic or glass bowl broke, fuel would flood the bilge. On an OB installation, typically the filter is external to the bilge and cockpit, and the fuel would go overboard. Still better to have a metal unit, IMHO.
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Dave Kruger
Astoria, OR |
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Blueback
Joined: 02 Oct 2004
Posts: 235
City/Region: Qualicum Beach, Vancouver Island
State or Province: BC
C-Dory Year: 1990
C-Dory Model: 16 Angler
Vessel Name: Blueback
Photos: Blueback
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| Posted: Mon Mar 16, 2015 6:35 pm Post subject: |
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| AstoriaDave wrote: | | Jake wrote: | | Chester wrote: | | Can't have the clear bowl on inboard engine applications. They have a metal bowl with a drain that is OK for those applications. |
Thanks Chester, I wonder why the difference? |
Jake, An IB installation has the fuel filter within the engine housing, open to the bilge. If a plastic or glass bowl broke, fuel would flood the bilge. On an OB installation, typically the filter is external to the bilge and cockpit, and the fuel would go overboard. Still better to have a metal unit, IMHO. |
The fuel may go overboard on some OB installation via the splash from a bowl failure, but not on mine as I don't consider that the ideal location for the filter. Secondly spilling fuel overboard is not good either from an environmental point of view. A metal filter canister gets my vote.
Geoff |
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ssobol
Joined: 27 Oct 2012
Posts: 3370
City/Region: SW Michigan
State or Province: MI
C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: SoBELLE
Photos: SoBelle
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| Posted: Mon Mar 16, 2015 10:45 pm Post subject: |
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The clear bowl can also help to check for water in the fuel system. A solid metal canister without a drain only allows you to check for water by taking the filter off.
You could have a separate water separator, but those usually have bowls and drains which seem to be inappropriate in some installations. |
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thataway
Joined: 02 Nov 2003
Posts: 20803
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
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| Posted: Mon Mar 16, 2015 11:45 pm Post subject: |
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When the clear bowl is in the Lazarette, (as in many of the C Dorys) there is some slight risk of fuel spill, but not the explosion risk that an inboard boat has however. Since I regularly check the bowl as part of the pre start inspection, I consider this risk minimal…and acceptable.
As for letting water thru--I had an incident where there was minimal water in the Racor, but the water separator of the outboard was full. I suspect that it was a little water over a long time. I was not checking the water seperater in the fuel line under the cowl of the outboard as often as I should have been.
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Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
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Home port: Pensacola FL |
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Jake
Joined: 31 Jan 2012
Posts: 171
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| Posted: Tue Mar 17, 2015 8:48 am Post subject: |
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| Larry H wrote: | Jake,
Inboard gasoline engines and fuel systems are regulated by the US Coast Guard. Those regs do not allow for plastic bowls and drain valves.
Outboard engine boats are exempt from those inboard regs.
For maximum safety, follow the inboard regs. |
I wonder if it depends on boat size. I see quite a few yachts on boattest.com with inboards and plastic bowels and drains. Maybe different for diesels? Just curious. My stern drive has the full metal with no drain but would be nice to have visual and ability to drain rather than just change every year. |
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AstoriaDave
Joined: 31 Oct 2005
Posts: 994
City/Region: Astoria
State or Province: OR
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| Posted: Tue Mar 17, 2015 10:24 am Post subject: |
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| Jake wrote: | | Larry H wrote: | Jake,
Inboard gasoline engines and fuel systems are regulated by the US Coast Guard. Those regs do not allow for plastic bowls and drain valves.
Outboard engine boats are exempt from those inboard regs.
For maximum safety, follow the inboard regs. |
I wonder if it depends on boat size. I see quite a few yachts on boattest.com with inboards and plastic bowels and drains. Maybe different for diesels? Just curious. My stern drive has the full metal with no drain but would be nice to have visual and ability to drain rather than just change every year. |
Jake, my recollection is that clear bowls are OK for IB diesel installations but not for IB gas, because diesel's flash point is so much higher than gasoline's. A broken bowl in a diesel system is a hell of a mess, but not the fire hazard caused by a broken bowl in a gas IB system. |
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