22HP OHV Briggs sucks fuel filter dry.

[bwestbrook]

22 horse Briggs will run great but sucks fuel filter dry. Tank vent is not stopped up. If I take fuel hose off before fuel pump I get good flow. If I take fuel hose off after pump I also get good flow. But while I am mowing the fuel filter will have less and less fuel until the mower starves itself for fuel and dies. am I looking at a carb problem?

441777 0116 E1
060116YG

 

[Rivets]

Here's what I would try. Take the filter out of the fuel line either by using a piece of tubing to replace the filter or along piece of fuel line and see if it solves the problem. If it does replace the filter, if not probably the fuel pump is the cause. Also you can try running with a loose fuel cap. Vent may look good but still be the cause.

 

[ILENGINE]

Have seen fuel filters clog and not allow fuel through and will act just as you subscribe.

 

[bwestbrook]

I put a brand new filter on and tried another fuel pump I had on hand. New filter is John Deere see through filter and old filter is red Briggs disc type filter. I put old one back on and it ran longer but still same thing.

 

[fastback]

Fuel filters are dirctional. Make sure it is installed correctly. It is also possible to have something at the bottom of the tank that moves and blocks off the flow. You may want to drain and remove the tank and make sure it is clean. We get a lot of crap in the gas today.

 

[bwestbrook]

Fuel filter is installed correctly thanks to the arrow. Haha. I will verify that there is nothing in tank but when I pull the fuel hose off of the pump I have good flow with just gravity. I think maybe it is a carb issue or weak fuel pump. Not sure how good the flow should be coming out of the pump though.

 

[6211lawnslayer]

Pump sounds weak... Check all connections....

 

[bwestbrook]

The vacuum hose coming from the valve cover to the pump has a very small tear. You can't even tell its there unless you take hose off and bend it. Would that be enough to make the pump that weak.

 

[ILENGINE]

That would do it.

 

[Raw Dodge]

That would definetely do it! I have 30 golf carts here with pulse vacuum fuel pumps and just the smallest pinhole is all it takes and they act the same way!