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Ariens z-turn again


indypower's Avatar
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Join Date: Jul 2006
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NH

11-11-08, 12:53 PM   #1  
Ariens z-turn again

Same problem with the Ariens Zero turn mower.
Arien #915037-00015 B&S# 31H777-0110-E1
Problem: blows oil from fuel pump hose.
Oil level is at full mark.(5W30 per Ariens temp recomendation)
Changed fuel pump.
Air filter is clean.
I am thinking the breather filter could have something to do with this. Haven't looked at it yet as the flywheel needs to be pulled to repalce it.
Any suggestions?
Thanks.

 
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30yearTech's Avatar
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11-11-08, 04:23 PM   #2  
What do you mean "it blows oil from the fuel pump hose"

Are you talking about the pulse hose to the fuel pump?? There will be some oil present in this line, if it's leaking, then the hose may be bad.

 
indypower's Avatar
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11-12-08, 11:39 AM   #3  
Found the leak. First I replaced the spring clamp with a screw clamp on the impulse line. That slowed it down a lot. I had previously replaced the fuel pump with a brand new one. It appears now that it is leaking oil out of the center (vent?) hole in the pump. There is also a hole off to the edge of the pump that has a brass screen in it. It is NOT leaking there.
Why would the impulse side of the pump be sucking up oil?

 
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11-12-08, 02:43 PM   #4  
I would think that the pump is bad, it should not leak oil out of the pump.

 
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