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Fuel Pump

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Online Zuk-E

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Re: Fuel Pump
« Reply #4 on: March 19, 2019, 07:11:21 AM »
The mechanical pump is cheap and easy to replace.
It's all about the journey, not the destination

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Offline basscatlildave

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Re: Fuel Pump
« Reply #3 on: March 19, 2019, 05:37:26 AM »
Well ok. That explains why it has oil dripping out of it. It's still seems to be pumping fine but I'll change it out.  ;)
If it's an OEM style pump, the fourth connection is a "vent" - if the diaphragm fails, you'll see oil dripping from it.

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Online fordem

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Re: Fuel Pump
« Reply #2 on: March 18, 2019, 05:23:06 PM »
If it's an OEM style pump, the fourth connection is a "vent" - if the diaphragm fails, you'll see oil dripping from it.
'98 SQ420 Grand Vitara
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Offline basscatlildave

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Fuel Pump
« Reply #1 on: March 18, 2019, 03:23:56 PM »
I just picked up an 88 Samurai . They told me the gas tank is bad so it was running off a jug under the hood. The fuel pump has 4 lines on it. I understand in out and return. What is the 4th line used for?