how many water separators do you guys have with twin engines

antlr-king · Post by **antlr-king** » Wed Mar 28, 2012 9:37 pm

mine has 1 for each engine that looks like original equipment mounted forward on the bulk head. they are all rusted and i cant even get them apart. then there are 2 more mounted in the rear of the engine comp. those look new. like only a few years old. is it over kill to have 2 water sep. for each engine? i think it is.

k9th · Post by **k9th** » Wed Mar 28, 2012 10:07 pm

Mine has one for each engine which I think is adequate.

jefflaw35 · Post by **jefflaw35** » Wed Mar 28, 2012 10:10 pm

k9th wrote:Mine has one for each engine which I think is adequate.

I have 1 with 1 engine, so +1 on the topic here.

prowlersfish · Post by **prowlersfish** » Wed Mar 28, 2012 10:31 pm

One per is the norm . 2 per is ok if run Parallel w/switching valve . 2 in series could be to restrictive for the fuel pump .

rossjo · Post by **rossjo** » Wed Mar 28, 2012 11:03 pm

1 water sep per engine + 2nd fuel filter per engine (diesel here).

Big D · Post by **Big D** » Wed Mar 28, 2012 11:05 pm

One per is all you need. Increased vacuum with 2 per, extra fitting restrictions etc., in a hot engine compartment and you risk vapour lock (gasoline here

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larryeddington · Post by **larryeddington** » Thu Mar 29, 2012 12:35 pm

mine is original aswell one for each engine and one filter on each engine after the fuel pump.

antlr-king · Post by **antlr-king** » Thu Mar 29, 2012 5:58 pm

thats what i thought. i think the other owner most likly couldnt get the old ones apart ( i couldnt ) so instead just add 2 new ones. i done get some people. why didnt they just cut the old ones loose and add the new one in there spots? good lord....
after its all said and done the boat is going to be 1000 lbs lighter. i have pulled a 5 gallon bucket full of wire that went no where, 2 fuel/water sep. tons of old parts stored in what ever hole they could find to shove them into. ect.....sheesh

9rock · Post by **9rock** » Thu Mar 29, 2012 7:54 pm

prowlersfish wrote:One per is the norm . 2 per is ok if run Parallel w/switching valve . 2 in series could be to restrictive for the fuel pump .

I was told when putting 2 inline one 10 micron and one 20 if I have that rite he said dont put 2 10s in line

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jhalb · Post by **jhalb** » Thu Mar 29, 2012 8:00 pm

I have a fuel filter mounted on the moter and a water separator close to my fuel tank.

prowlersfish · Post by **prowlersfish** » Thu Mar 29, 2012 8:49 pm

9rock wrote:
prowlersfish wrote:One per is the norm . 2 per is ok if run Parallel w/switching valve . 2 in series could be to restrictive for the fuel pump .
I was told when putting 2 inline one 10 micron and one 20 if I have that rite he said dont put 2 10s in line

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If your fuel pump could handle it ( gas fuel pumps don't like restrictions )

But if you did 2 it would be 20 micron then the 10 . don't forget you may have filter on the engine also . ( could be in the carb) . I am running a 30 micron racor 900 and a 10 ( I believe) on the engine . common set up on a diesel , also some times 2 off engine filters are used on a diesel .

jddens · Post by **jddens** » Thu Mar 29, 2012 10:43 pm

I have one water separator mounted on the motor and two oil filters also mounted on the motor...............John

Mike Kulp · Post by **Mike Kulp** » Fri Mar 30, 2012 1:14 pm

My boat originaly only had canister style fuel filters mounted on the engines ( Crusader ), I added fuel seperators in line at the fuel tanks with shut offs on both sides to make changing the seperators less of a mess and left the original filters in place.

1967 seavoyager · Post by **1967 seavoyager** » Fri Mar 30, 2012 10:17 pm

I took my glass bowls of this week & installed new spin ons. My boat came with 3/8" copper lines with flare fittings. I had to replace the lines for more length. Replaced with new copper lines & flare fittings. Your rubber lines & hose clamps make me nervous. i don't think they're Coast Guard approved.