updating air filter and fuel filter systems on WD

thebigyellowtruck · Sep 17, 2011

I felt that my fuel bowl and my oil bath air filter were not working as well as the newer technology does. This is a working tractor so I'm not too worried about how it looks, but once I get the chance to restore it I will put everything back to original. what do ya'll think?
49 WD fuel and air filter update

BushogPapa · Sep 18, 2011

That OIL BATH air-cleaner cannot be beat, for efficiently Cleaning the air for the engine...
No, it is not meant for "Racing", but will do the job every time..
I think you will want to re-connect it before long (keep it clean)..

In-Line fuel filters are usually more problem than cure...they put a flow-restriction on a Gravity-fed fuel system..
If you have no trouble, good...if you do, you may want that Sediment Bowl back..

Ron

thebigyellowtruck · Sep 18, 2011

i kept the fuel bowl, but i just keep having to buy gaskets for it and every time i need them they have to be special ordered. i put the pipe between the oil bath filter and the carb and it seemed like the motor was getting insufficient air flow from the filter, even after putting fresh oil in. I've been running it with no filter for awhile now, but i want at least some kind of air filtration so i don't cause any other kind of problems.

Aaron SEIA · Sep 18, 2011

Hope you don't feel like we're piling on. There is something else wrong with your original air cleaner if you think it wasn't supplying enough air. For sure the little paper thing is better than nothing, but finding out what is going on with your oil bath one is the best thing. Also not sure why you would need to keep buying gaskets for the sediment bowl. I take mine off several times a year and have yet to need a new gasket in the 8 years since it's been put in.
AaronSEIA

rustyfarmall · Sep 18, 2011

Would it surprise you to know that the original sediment bowl has a filtering screen in it that is more efficient and has more capacity than that puny little in-line filter you put on there? Likewise with the air filter. That Donaldson oil bath is far more efficient than a tiny little paper thing.

Yes, the technology is old, but not that old, and it is still the best technology for these older tractors.

Harold Evans · Sep 18, 2011

You might try making your own gaskets. Sometimes hand made is better than factory by a long shot.

old · Sep 18, 2011

Special order??? You mush not have the factory sediment bowl on it since I can drive up to my local O'Reilly's and buy them all day long well not really since when ever I do buy them I buy every one they have on hand which most of the time is a half dozen or so. Yep hard to beat what was there from back when they where new. Plus an in line filter will come back sooner or later and bite you in the behind I know I have thrown many or them away in the past few years and boy the case of beer I charge to fix that problem sure goes down nicely

Anonymous-0 · Sep 18, 2011

When you get the oil bath cleaned out put your paper filter on the inlet then check the oil bath and be amazed at all the dust that the oil captures. Unless you have a bunch of those in line filters your going to be stopping ALOT when they plug. Take the o.b. aircleaner off & clean it out with kerosene, diesel, Dawn detergent, what ever your favorite cleaner is, air goes in the center thru the oil soaked mess and into carb shouldnt be hard to find restriction,if there is any.

Anonymous-0 · Sep 18, 2011

As for the o/b air cleaner on your WD it is likely very dirty to the point of being plugged.These air filters are a little different than most Donaldsons in that they do not bring the air in through the centre tube but disperse it into a cavity between the outer shell and an inner shell. You cannot access this cavity. On mine I got the oily dirt in the cavity burning the helped it with oxygen, really cleaned it out. Also started to melt the soldrer holding it together, not good. Would reccommend boiling at the rad shop. When clean the unit will be 5/6 pounds lighter. jack

wd45man · Sep 18, 2011

that carbartor looks like it is way too small to supply enough fuel for a WD. Also the fuel filter and shut off valve look to be ment for use on lawn mower small engines

BushogPapa · Sep 18, 2011

I saw on here a day or two ago, a fellow had a nice filter that fit INSIDE the glass sediment bowl and made it's own gasket..all in one..

You might check the existing air filter canister..
if it had been badly neglected, chaff and debris may have been sucked up into the metal gauze and have it plugged up..
I have removed the gauze before..and cleaned it up in solvent..
Not easy to get the bottom retaining part out, but can be done..
You could remove the entire canister and agitate it in solvent and get it rinsed out pretty well that way..

Ron..

thebigyellowtruck · Sep 19, 2011

The gaskets that I can get locally keep stretching and
cracking. I don't seem to be good quality gaskets. My fuel
cap was bad so I was having to drain water out of the tank
pretty often and the gasket would be too stretched to go
back on after taking the bowl off 3-4 times.

thebigyellowtruck · Sep 19, 2011

That carb is the original zenith carb for the wd. The fuel filter is rated for up to 80 horse power. The shut off is just for a 1/4 inch rubber fuel line. It does its job.

thebigyellowtruck · Sep 19, 2011

My fuel bowl used to have a screen, but I let a buddy borrow
it and when I pulled the bowl off again the screen was gone.
When I went to try and buy a new screen it was $18 plus
shipping. I picked that inline filter for 5 bucks. With how
much the screen and gaskets are costing be the inline is my
best bet for now. I've only driven it around the yard for now.
The tractor seemed to run fine. Ill let you guys know how it
runs once I put it under load.

David Grubb · Sep 19, 2011

As has been mentioned; have the oil bath unit boiled out at a radiator shop. The easiest way to add a paper filter is featured in the link I provided. You need to get a Donaldson book to pick out the correct filter size and flow rate but the point is to replace the oil bath unit rain cap with the correct size filter in the link. The filters in the link have their inlets located radially around the bottom of the filter housing. No need for a rain cap. You could leave the oil bath unit empty or put some oil in it to keep it from rusting.
Donaldson filters

Aaron SEIA · Sep 19, 2011

I don't think anyone here is really trying to be mean to you. We are a group that thinks that the original equipment was good 60 years ago and is still the best. Some like myself have upgraded to 12v systems, but for the most part we all think stock is the way to go. That said, I do understand when costs become a factor. I have played to water in fuel game before. Maybe you should try to find a cork gasket. Thats what mine has and hasn't been a problem for several years. You did say that all will be restored to stock when you go through her in a few years. Best of luck with that.
AaronSEIA

rustyfarmall · Sep 19, 2011

(quoted from post at 10:51:32 09/18/11) i kept the fuel bowl, but i just keep having to buy gaskets for it and every time i need them they have to be special ordered. i put the pipe between the oil bath filter and the carb and it seemed like the motor was getting insufficient air flow from the filter, even after putting fresh oil in. I've been running it with no filter for awhile now, but i want at least some kind of air filtration so i don't cause any other kind of problems.

A complete, brand new sediment bowl assembly can be had for $30 or less just about anywhere.

David Grubb · Sep 20, 2011

I knew I had some photos in here somewhere.
Donaldson air filter & alternator installation

updating air filter and fuel filter systems on WD

thebigyellowtruck

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BushogPapa

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thebigyellowtruck

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Aaron SEIA

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rustyfarmall

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Harold Evans

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old

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Anonymous-0

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Anonymous-0

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wd45man

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BushogPapa

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thebigyellowtruck

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thebigyellowtruck

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thebigyellowtruck

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David Grubb

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Aaron SEIA

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David Grubb

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