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Question on Toro S-200 Carb.


j HOWARD's Avatar
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Join Date: Feb 2008
Posts: 977
MI

09-24-08, 06:17 PM   #1  
Question on Toro S-200 Carb.

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This is the bottom cover of a carb for Toro #38120 (s-200)
Carb # 631887 for Tecumseh engine.
In part # 23 (cutway) you see the plastic fitting that the
primer hose attaches to.
Part # 22 is the diaphragm.
The engine runs fine but when I stop it I can feel gas where
the plastic fitting attaches to the cover plate ( # 23 ).
Is this type of carb. supposed to have gas under the
diaphragm?
If so--what can I use to seal this fitting that gas will not eat thru?

 
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30yearTech's Avatar
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09-24-08, 07:37 PM   #2  
No, there should be no fuel below the diaphragm at the primer hose bib. I think you may need to replace the diaphragm, it must have a leak.

 
j HOWARD's Avatar
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09-24-08, 07:45 PM   #3  
Posted By: 30yearTech No, there should be no fuel below the diaphragm at the primer hose bib. I think you may need to replace the diaphragm, it must have a leak.
That's what I was afraid of---------thanks........

 
j HOWARD's Avatar
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09-30-08, 06:41 PM   #4  
Weird

Posted By: j HOWARD That's what I was afraid of---------thanks........
Replaced diaphragm (new ) as I took it off---gasket-diaphragm-cover plate. ( top to bottom )
Engine would only run 5 seconds & quit.
Took off cover plate & set gasket under Diaphragm--
diaphragm-gasket-cover plate.
Engine started immed & runs like new--paper thin gasket made all the difference.........................

 
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