Adding fuel filter on Super C?

A_Gauthier · Jun 27, 2010

Thanks to all who offered advice on my question yesterday ("Super C stalls after running 30 min"). One more related question: as long as I'm dismantling the fuel system, my father thinks I should add a NAPA in-line fuel filter. I am not sure if this will work with a gravity system, but he says it will be fine. Anyone ever done this?

rustred · Jun 27, 2010

not really meant to have inline filter. if i was to use one it would be the little inline filter like on the sa200 lincoln welder. it is only the size of your finger and shoulnt get air locked.if the tank is clean , you have a sediment bowl and filter at carb inlet it is not necessary.

gene bender · Jun 27, 2010

I use the Fram see thru types close to the tank with rubber hose so you can change them easy they will catch stuff that the sediment bowl fscreen lets thru and depending on how clean your tank is will depend on how long you need to use one.. Mite need to remove the tank and do come cleaning also. lots of rust can be on the topside of the tank. I built a tumbler to fasten the tanks to then have used soapy water with 1/4 nuts worked well but Muratic acid is the best just have to be careful when using.

ScottyHOMeY · Jun 27, 2010

Just have to be careful on the filter. Some will not allow sufficient flow for a gravity fed sytem (they're designed for systems with a pump or vacuum diaphragm to push or pull fuel through them). Those that will work are out there.

That said, a good cleaning of the tank, and a good screen on a sediment bulb will keep things running just fine.

BMD · Jun 27, 2010

The last couple of carb rebuilds I have used a small inline fuel filter from Walmart. It is in the boating supplies section. It is a cleanable mesh/screen filter with a clear outer shell that offers very little flow restriction. It also has several interchangeable nipples to fit most fuel hose sizes.
I have used them on engine sizes up to a c-169 without problems.

Yes, a old dirty tank plus a new carb kit is a problem waiting happen.All it takes is one fleck of crude/rust/trash and you get to take the carb apart again and clean the passages. Been there and done that ......

hope this helps
BMD

hope this helps
BMD

Farmallhal · Jun 27, 2010

Went through the same thing before restoring mine to be able to use it and really don't think the filter helped much. You can find an inline fuel filter which will work with a gravity system as noted by Gene Bender. If you have a tank venting problem no filter will help with that issue as that requires a different approach for a solution as noted previously. I found the real solution to my problems I had was having the tank cleaned really good by a radiator shop during the restoration and getting what junk was in the tank out. I then sealed it with one of those fuel tank sealing products from an auto parts store recommended by the radiator shop. I haven't even had a hic-up from it since and it is my favorite hay rake and check out the farm tractor so it gets used. Hope this helps, Hal.

A_Gauthier · Jun 27, 2010

gene bender: Excellent idea with the tumbler!I'll see what I can rig up. Thanks!

A_Gauthier · Jun 27, 2010

Again, thank you farmallhal. Once I get the tank off I'll see if I can find a good place to get it cleaned ... otherwise I may try Gene Bender's tumbler idea.

I haven't heard about the sealing product, but I will try to find some!

I love this old machine. It's comfy and more nimble in the field than the 80's JD we have at the farm. It's a great all around hay tractor. This one has spent its whole life on the same farm and has been in the barn every night. Nice old tractor.

Thanks again,
Aaron Gauthier
Milton, New Hampshire

Adding fuel filter on Super C?

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