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Searider

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Reply with quote  #1 
Beside of another 90 I owned in the past a G1 and G2 250 which have the fuel filter with water sensor installed under the cowling . 
Currently I am rigging a boat with 90 twins - not new - both motors are from 2005 with around 500 hours . 
Beside of giving them a full check and service I am asking myself whether I can replace the original installed plastic filter with the filter of the larger motors to benefit from the water sensor . 
The main filter will be a RACOR 110A for each motor and I talked to the RACOR dealer . Their water sensors are not certified for petrol - only for diesel.
Beside of finding a place under the cowling for the larger filter - the EMM of the 90 does not have the input for the water sensor . 
Is there any other way how to connect the sensor to an external warning light / LED etc ?
I assume the warning comes from changing resistance between the electrodes ?
Thank you !

Not sure the serial numbers are relevant for this question but here they are : 

  • E90 DPLSOR 5113473
  • E90 DSLSOC 5079003

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E90 DPLSOR 5113473
E90 DSLSOC 5079003
PhilH12

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Reply with quote  #2 
I'm surely no expert, but I would install boat-mounted Racor filters with a clear bowl to see the water (if any).

Might save all of the searching for "space" and "electrical connections" unless you just enjoy the challenge?  Yes, I'm "old school" but sometimes technology isn't practical, especially on a retrofit.  [wink]

Good luck with it!

Phil

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90 HP E-Tec E90DPLSUM  05184332
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seahorse

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Reply with quote  #3 

Installing one Racor filter assembly with bowl and drain for each motor will give you all the protection that your engines need. Just monitor the clear bowl for water accumulation. The Racor full size filters can trap a large amount of water before it becomes a problem.

 

You can either use the complete 320 series Racor filter assemblies or the Racor filter and bowl add-on kits to existing BRP Evinrude or the popular Merc/Yamaha/Sierra style filter brackets.  Those just spin on in place of the original Evinrude or Merc filter canisters.


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Searider

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Reply with quote  #4 
Thanks for replies !
I want to avoid the filters with spin on canisters due to quick corrosion - the filters will be mounted at the stern of the RIB and will be exposed to saltwater .
The RACOR 110A is by far more resistant against corrosion and moreover this full metal housing is indestructible - which is another advantage on an open RIB which has the character of an working boat . 
The filters I will install left / right of the metal support between the motors .
What is missing is the water detection - thats why I had the idea using the filters of the larger motors with the water detection . 
Picture shows the boat still with the Yamahas . They had just very simple inline plastic filters installed ..

Attached Images
Click image for larger version - Name: racor110A.jpg, Views: 13, Size: 12.97 KB  Click image for larger version - Name: 5494272e-4a99-47cf-9351-00d2afdf4134_large2000 copy.jpg, Views: 15, Size: 88.66 KB 

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E90 DPLSOR 5113473
E90 DSLSOC 5079003

steelhead

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Reply with quote  #5 
The Racor 110s are aluminum threaded body and top, will corrode and lock together in salt water apps.  ONLY hold 1 ounce of water before filter is immersed.

Another option.
Glass filled Nylon body, Nylon bowl, stainless steel bracket

https://ph.parker.com/us/en/snapp-disposable-fuel-filter-water-separator-racor/23299-10



Huey

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Reply with quote  #6 
I have seen in line engines up in Asia where they have installed the WIF style head and filter in the boat, there is not room under the cowl on an in line. Then they have wired up a light on the dash if there is water in the fuel, the EMM would not be able to notify that on an in line outboard.
bunkergroup

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Reply with quote  #7 
I run twin 75's with spin on filters , plastic bowls with drains, housings are stainless with stainless fittings. Mounted at the stern. I swap out filters regularly to stay on top of the corrosion. Easy to remove water , which I have had to do at sea before. Perhaps you could shroud the filter assemblies to protect them ?.
seahorse

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Reply with quote  #8 


Use the R11-T  10-micron filter elements

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Searider

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Reply with quote  #9 
Guys - thanks a lot - many good information !
I had a RACOR 110A on a similar boat with a single ETEC90 and it was running good - also no problems with corrosion .
I still have this filter and intended to buy a second one .
@Steelhead
I looked at those filters and seems they are not bad . The disadvantage is that I usually carry 2 spare elements per motor and for the twins 4 of these bulky Elements would occupy a lot of space which is on this boat very limited . Moreover the spare elements are very pricey
This lead me to the Yamaha filter / water separator with plastic housing .
They have a clear bowl , replaceable 10 micron filter and the small red plastic ring in the bowl which indicates water in fuel. Also no electric to mess around - would keep things really simple .
So may be instead of buying another quite expensive RACOR I could go for 2 Yamaha filters and leave the original inline filter of the ETEC alone

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E90 DPLSOR 5113473
E90 DSLSOC 5079003

rickmcd53

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Reply with quote  #10 
I think Mercury has a spin on filter with the water sensor built into the filter.
What we need in the market is a fuel sending unit with sensor probes on it to catch water at the source and a gauge with an LED in it.
Evinrude

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Reply with quote  #11 
If your worried about corrosion of the head just order the sierra stainless steel bracket and use the racor 32013 style filter with clear bowel. The filter is painted steel but replaced once or twice a year anyway so it will never have time to rust. 
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bunkergroup

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Reply with quote  #12 
Quote:
Originally Posted by Evinrude
If your worried about corrosion of the head just order the sierra stainless steel bracket and use the racor 32013 style filter with clear bowel. The filter is painted steel but replaced once or twice a year anyway so it will never have time to rust. 
bunkergroup

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Reply with quote  #13 
This is the way i went with my filter set up. the kit came with alloy hose fittings which I swapped out with 316 stainless .. I keep a spare set of filers with bowls attached for easy regular change outs.
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