Case 446, no fuel to carb.

hparri · May 20, 2014

I have a 1983 case 446, with an Onan engine S/N, D803520319, carb M/N DD-DA7E. The fuel pump in integrated with the carb, so I cant by pass it with an after market. I can't find a rebuild kit, or replacement carb. Can anyone help me with info?

casecollectorsc · May 20, 2014

You can put a small inline pump in the fuel line under the tractor. I think the smallest pressure you can get is 6# pressure. Need a good needle and seat to hold the pressure. We have done that on a couple 446.

maxwell99 · May 20, 2014

I have the same tractor mower, with same engine. My
local caseIH dealer carries many parts for the
tractor.

It's worth a call:

Mckeel tractor co. Murray, KY.

They have been a case dealership for many, many
years.

Current owner/manager said in days gone by a
customer was always asking: if I buy a new combine
or large tractor will you throw in one of those case
mowers, he said most customers did not understand
what high dollar machines these mowers were even
back in the day.

Hope they can help you.

Klyde · May 20, 2014

I"ve worked on them since they were Colts, cheapest way out is to put an inline primer bulb in the gas line(like on a outboard motor). most times the pump will pump if it has fuel it just won"t suck it up.

Check for flow out of the tank, a lot can happen in 30 years line could be pinched, cracked, or the screen elbow in the bottom of the tank could be completely plugged.

That carb has been a nightmare for the last 10 or 15 years! Parts are a small fortune. I have found a few online.
What you need is a blanking cap to go inplace of the pump and then either a electric or the impulse pump off a modern briggs or kohler. hth

John Saeli · May 20, 2014

Laugh all you want boys, but here is how I start a CASE Lawn Tractor after sitting long periods. Fill the gas tank, take a deep breath, blow into the tank & hit the key. Works every time & won't have to do it again till next Spring.

chuck machinist · May 20, 2014

I'd pay good money to have Chris take a picture of you doing that John. HAR HAR!

Klyde · May 21, 2014

Yup, forgot about the Monica Lewinsky service calls!!

oldmisterbill · May 21, 2014

John I won't laugh at you. I've done that many times over the years for various engines. The worst part is "ring around the mouth".

John Saeli · May 21, 2014

Klyde brings up a very good point. A picture of me in a very compromising position like that would be very valuable. Possibly enough for me to take Chris on a cruise. However, I would never break my vows to the brand I grew up with & perform such a service on another brand. A picture of that would command many $$$.

kevinstuff · May 21, 2014

You can find parts at Cummins dealer if it"s an Onan, last kit
I bought was $56.00 or just get Briggs external pump and
place that inline

hparri · Jul 17, 2014

the briggs after market pump didn't work, so I took the original pump apart and with a wire I bent the reeds back into position so they would close. Now it works like a charm, just purrs. Thanks for the replies they were helpfull. Oh and I'm not blowing my tractor, LMAO!

JimEvans · Jul 17, 2014

You might want to replace the rubber line from the tank, it could have a pin hole in it letting the pump suck air. I do have a inline pump on one of my 444s. I needed to cure a vapor lock problem when mowing on hot days. That did the trick plus it starts almost immediately now instead of having to crank it enough to pump fuel to the carb.

Case 446, no fuel to carb.

hparri

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