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18.5 OHV Briggs

dfrank's Avatar

Join Date: Sep 2008
Posts: 1

09-22-08, 03:57 PM   #1  
18.5 OHV Briggs

My 18.5 ohv Briggs is spelling oil out of the fuel pump breather. Does anyone know what might cause this to happen?


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Airman's Avatar

Join Date: Feb 2008
Posts: 755

09-22-08, 05:57 PM   #2  
Please post model number.

I have never heard of a fuel pump breather. Can you verify where the oil is coming from?

cheese's Avatar
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Join Date: Jul 2001
Posts: 16,571

09-22-08, 08:12 PM   #3  
The vent on the fuel pump is in the same portion of the pump that the crankcase pressure is ported to. If there is extremely excessive crankcase pressure or overly full or thin oil, it could weep out this vent. Is the oil overfilled? Does the oil smell like gas? Does the engine smoke?

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PBILI's Avatar

Join Date: Mar 2009
Posts: 1

03-16-09, 07:34 AM   #4  
Oil leak

U ever get this resolved? I have the same problem.

31YTech's Avatar

Join Date: Feb 2008
Posts: 1,263

03-16-09, 03:22 PM   #5  
Posted By: PBILI U ever get this resolved? I have the same problem.

Did you check/follow Mr Cheese's post above ?

If so and you found no problem maybe we can get you to post both model and type numbers so we can take a look at yours ?

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