Using the Tecumseh Carburetor 632774 this page will cover basic repair tasks to get your Tecumseh Carburetor back in shape.
Things to consider prior to making any repair on a Tecumseh Carburetor-
Is the Tecumseh Carburetor worth repairing?
How much does a new Tecumseh Carburetor cost new?
If the time and parts to repair a Tecumseh Carburetor
exceeds half or more of the price of a new carburetor,
you should consider buying a new Tecumseh Carburetor.
What is your time worth? If you want to learn and have the time, then go for it, repair the carburetor and have fun doing so.
When it becomes frustrating for any reason,
you will be more satisfied with your decision to
just put on a new Tecumseh Carburetor.
This may sound like a sales pitch for a new Tecumseh Carburetor,
but this is the same decision process we use in our repair shop.
If it will take more time and cost of parts to repair a
Tecumseh Carburetor than the cost of a new one,
we simply put on a new Carburetor.
If you are taking your mower into a repair shop, be sure
and ask them to apply the same decision method.
If you know a new Tecumseh Carburetor is priced under $60.00
you may want to consider asking the repair shop to just
put on a new Tecumseh Carburetor for you verses trying to
make the old one work. The shop may charge you for more time
trying to make the old one work, then turn around and charge you
for a simple installation of a New Tecumseh Carburetor after they
realize they can't make the old one work.
While the pictures shown below are for a Tecumseh Carburetor 632774
the pictures do represent an Adjustable Jet Tecumseh Carburetor.
Is fuel dripping out through the air inlet? The inlet needle valve may be leaking. If you remove the bowl, check the float to see if it has any fuel inside the float. If your float is a metal float, shake the float and listen. Can you hear any liquid shaking around inside the float? If so, that may be part of your problem. If the float "sinks" inside the float bowl, it will constantly let fuel enter the carburetor without shutting off the fuel. The float must "float" on top of the fuel while fuel is inside the bowl. If it has fuel inside the float, it will be heavy and will sink. If your float is clear plastic, you can see the fuel inside the float. In either case, replace the float.
If the float is not sinking, then you may have a leaking inlet needle valve or seat. This valve is inside the fuel inlet port of the carburetor. You must remove the float to get to the inlet needle. Under the needle is a seat. Most of the times, Tecumseh uses a small rubber donut type of seal for sealing the tip of the needle. If this seat is installed improperly it will leak around the needle tip. If it is swolen, it will pinch off the fuel flow not letting fuel enter the float chamber. If you remove the seat, install a new one. The inlet seat must be installed properly for it to work correctly (see figure 1).
If none of the items above have provided clues as to a possible Tecumseh Carburetor Problem, then you may have to remove the Carburetor and inspect the inside areas.
The bottom bowl is the first place to start.
Remove the bottom bowl by removing the Jet from the bottom of the bowl.
The only thing holding the bowl on then will be a locking seal formed by the bowl ring seal at the top of the bowl. Twist or tilt the bowl and it will come right off. ALWAYS REPLACE THE BOWL SEAL.
This image is for illustration only, may not be exact.
|632774||TECUMSEH CARBURETOR COMPLETE|
|1||632649||THROTTLE SHAFT AND LEVER ASSY.|
|2||632685||THROTTLE RETURN SPRING|
|4||631184||DUST SEAL WASHER|
|5||631183||DUST SEAL (THROTTLE)|
|10||632472||CHOKE SHAFT AND LEVER ASSY.|
|11||632473||CHOKE RETURN SPRING|
|12||631184||DUST SEAL WASHER|
|13||631183||DUST SEAL (CHOKE)|
|17||651025||THROTTLE CRACK SCREW/IDLE SPEED SCREW|
|20||632281||IDLE MIXTURE SCREW|
|22||630739||IDLE MIXTURE SCREW WASHER|
|23||630740||IDLE MIXTURE SCREW "O-RING"|
|25||631867||FLOAT BOWL ASSY.|
|29||631028||FLOAT BOWL "O-RING"|
|30||631021||INLET NEEDLE, SEAT AND CLIP
(INCLUDES 41 THRU 44)
|44||27110A||BOWL NUT WASHER|
|SITE MAP||CONTACT US||SERVICE TOOLS||OUR COMPLETE
|TECUMSEH PARTS FOR SALE
|BUY TECUMSEH CARBURETORS||Tecumseh Starters
and Parts Listings
LISTING BY ENGINE SPEC NUMBER PROVIDING PART NUMBER
ALL OTHERS MUST REVIEW OUR
INFORMATION PAGE PRIOR TO MAKING YOUR PURCHASE.
This web site has been made available to you for the enhancement of the services we provide to our customers. We have provided a number of resources here to help you resolve TECUMSEH CARBURETOR problems, find TECUMSEH CARBURETOR parts you need, and suggest improvements to our service OF PROVIDING INFORMATION FOR REPAIRING OR BUYING TECUMSEH CARBURETORS ONLINE.
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