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Walbro brass needle and seat question. John deere STX38 CV13

#1

silver1

silver1

My Kohler CV13 carb. leaks after shutoff. I got the needle and seat kit. 12 757 03-S
Walbro LMK 63 0217 1205377.

The info. says to "Drop enclosed valve seat into retainer with identification marks facing down" (84-215)
"Press retaining ring with a .213 dia. drill blank so it presses valve seat to depth."
Question....Do I remove the brass seat first? or press the rubber seat in with the brass in place????
"Use 82-85 inlet needlee valve in carburetors that have BRASS valve seat and dated after 2553" ?

Thanks
Feb. 27

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#2

ILENGINE

ILENGINE

The viton seat (84-215) is not used with the brass seat. the 82-85 is used with the brass seat because it has a viton tip Since you have the brass seat, the old seat stays in place and you use the 82-85 and attach it to the float, and insert it into the seat just like the old one came out.


#3

primerbulb120

primerbulb120

That float looks like it needs replacing.


#4

silver1

silver1

The viton seat (84-215) is not used with the brass seat. the 82-85 is used with the brass seat because it has a viton tip Since you have the brass seat, the old seat stays in place and you use the 82-85 and attach it to the float, and insert it into the seat just like the old one came out.

Your explanation is better than theirs. I was leaning that way. Just wanted to be sure.......
Thanks:wink:


#5

silver1

silver1

That float looks like it needs replacing.

copy that. I get one on order.
Thanks


#6

M

Mikel1

It may be just me but float looks good to me. Best I can tell from the picture.


#7

ILENGINE

ILENGINE

Discolored but as long as it isn't warped or leaking and has gas inside you are good to go and just use it.


#8

silver1

silver1

It may be just me but float looks good to me. Best I can tell from the picture.

I used the kit and re-installed carb. I know I had a fuel flow problem also. I used pressure hose and blowout the line out to the tank.
The cv13 fired right up!:smile: I adjusted the governor/ spring setup and took it for a spin!:wink:


#9

M

Mikel1

Sounds good:thumbsup:


#10

primerbulb120

primerbulb120

In my experience if a Briggs float is discolored that much it usually needs replacing. It can't hurt to replace it while you've got the carb apart. :thumbsup:


#11

silver1

silver1

Discolored but as long as it isn't warped or leaking and has gas inside you are good to go and just use it.

I did.............


#12

silver1

silver1

In my experience if a Briggs float is discolored that much it usually needs replacing. It can't hurt to replace it while you've got the carb apart. :thumbsup:

It would be nice if it came with the re-build kit!


#13

ILENGINE

ILENGINE

New float comes with the float repair kit which includes a new float, new needle valve, and bowl gasket.


#14

silver1

silver1

Discolored but as long as it isn't warped or leaking and has gas inside you are good to go and just use it.

I have a float on order. I don't think it is the problem as I don't have good fuel flow. The fuel filter will not fill up! I have the tank with gas,
the shutoff "ON" and the fuel filter will not fill up! After some time(hours) it will have a small amount of gas in it. If I start it up with gas visible
in filter, it will start and run until it runs dry! (?) A minute or two. I will replace the fuel filter AGAIN and see what happens.


#15

ILENGINE

ILENGINE

make sure something isn't blocking the fuel line between the carb and the tank. remove line from carb, and put below level of fuel in tank. Make sure the fuel runs with a full line diameter. If flow is slow or partial flow, you will need to clear the fuel line and fuel outlet on the tank I will sometimes put a blow gun in the end of the hose and then blow air back into the tank. And then see what comes out.


#16

B

bertsmobile1

I have a float on order. I don't think it is the problem as I don't have good fuel flow. The fuel filter will not fill up! I have the tank with gas,
the shutoff "ON" and the fuel filter will not fill up! After some time(hours) it will have a small amount of gas in it. If I start it up with gas visible
in filter, it will start and run until it runs dry! (?) A minute or two. I will replace the fuel filter AGAIN and see what happens.


If you fit a new filter cut the old one in half.
You will see that the discharge tube is only about a 1/4" from the inlet so if it is fitted outlet up you get an air pocket that is trapped in the filter.
A common misconseption that the entire filter needs to be full of fuel for the engine to run.


#17

M

motoman

I use the WalMart universal fuel filters in bubble pak, slightly bigger that the gen-ooo-ine Briggs. The gas filter is never full when running.


#18

silver1

silver1

make sure something isn't blocking the fuel line between the carb and the tank. remove line from carb, and put below level of fuel in tank. Make sure the fuel runs with a full line diameter. If flow is slow or partial flow, you will need to clear the fuel line and fuel outlet on the tank I will sometimes put a blow gun in the end of the hose and then blow air back into the tank. And then see what comes out.

I removed the fuel line @ the carb. and use manual air pressure to blow back to the tank with the shutoff valve open and it made good bubbles.
I also put on a new Kohler 25 050 22-s fuel filter. The filter did start to fill up. I turned off the valve and I will see what happens tomorrow.
The tank did not have any thing I could see. I removed the tank earlier and cleaned out some of the old gas cap that had come apart. I replaced the
hose, re-installed the tank and added a new cap. The only thing left is the shutoff valve itself. Now a new filter, next a new float.
and on, and on and on........


#19

silver1

silver1

MY JD fired right up today. The fuel filter was half full and stayed that way.
I rode around for 15min. with no problem. Misses now and then, new plug maybe.
The RPM's are very high compared to what it was before the re-build!
I will hookup my Gage and see what it is.:cool:


#20

B

bertsmobile1

MY JD fired right up today. The fuel filter was half full and stayed that way.
I rode around for 15min. with no problem. Misses now and then, new plug maybe.
The RPM's are very high compared to what it was before the re-build!
I will hookup my Gage and see what it is.:cool:

If you want it to fill completly remve it from the carb and hold the filter outlet down with your finger blocking off the line.
Eventually the bubbles will travel back up the fuel line & out the fuel tank.


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