Lightwin Fuel Filter Issue
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May 30, 2020 at 9:05 am #204417
I have a 1964 Evinrude Lightwin (model 3402R). Fuel flow from the petcock was near non existent so I removed the petcock assembly from the tank and found no filter attached. Looking a bit closed I discovered the filter (sintered aluminum) still in the tank. It appears the filter broke away from the fuel valve assembly. Was it meant to come out attached to the fuel shutoff valve? If so, and it did beak away, can I tap it back into the tank and shake it out?
Thanks,
DrifterMay 30, 2020 at 9:28 am #204421They are soldered on and after 56 years it has come loose from the fitting. Is it stuck in the tank or loose?
May 30, 2020 at 9:43 am #204422It is stuck in the tank. I was thinking I could simply tap it back inside the tank and shake it out.
May 30, 2020 at 10:28 am #204435Yes that is what I would do. Probably won’t take much to get it detached. You can run an in-line temporarily if you want…..and eventually source a new petcock/filter for the tank. Costco used to sell a branded version of a “Simple-Green” solution that would do a great job of cleaning those sintered filters. I keep hoping they will bring it back.
May 30, 2020 at 10:43 am #204443You can knock it into the tank and just leave it in there, if you want to. I install a piece of brass filter screen into the adapter fitting that the sintered filter came out of.
May 30, 2020 at 12:25 pm #204445So what was causing the lack of fuel flow??
May 30, 2020 at 1:14 pm #204450Here’a another way to remove the filter.
https://aomci.org/forums/topic/removing-broken-tank-filters-from-omc-three-horse-motors-2/
May 30, 2020 at 2:06 pm #204451So what was causing the lack of fuel flow??
The old sintered filter crudded into the tank opening—-same thing that tore it loose from the adapter fitting when the fitting was unscrewed. Actually pretty common.
May 30, 2020 at 3:35 pm #204453I got it out but not by tapping it. I had to whack the begeebers out of it using a brass drift and a ball peen hammer. Whacked it 5 or six times. It was totally encrusted with crud about half way up. I had only added a quart of fuel mix so it was never going to flow. I got the filter out and added a small in line (screen) type filter.
Oddly, the tank is clean as a whistle. I used a flashlight with a 12″ flexible extension to look as far into the tank as possible and what I could see was very clean.
Thanks again for all of the advise.
Nick
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