Fuel Pump Eccentric
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Joined: Nov 2004
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From: WA
Fuel Pump Eccentric
Howdy folks. I bought a 1989 5.0 HO motor out of a Mustang for rebuild and install into my '56 F-100. It was an EFI motor that had never been torn down or had any major work done (that I could tell), but while I was tearing it down for rebuild I was surprised to find a fuel pump eccentric on the cam sprocket. Is this just something Ford did to all their motors at the time even if the were electric fuel pumps/EFI? Thanks.
Lead Driver
Joined: Apr 2007
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From: Houston
Howdy folks. I bought a 1989 5.0 HO motor out of a Mustang for rebuild and install into my '56 F-100. It was an EFI motor that had never been torn down or had any major work done (that I could tell), but while I was tearing it down for rebuild I was surprised to find a fuel pump eccentric on the cam sprocket. Is this just something Ford did to all their motors at the time even if the were electric fuel pumps/EFI? Thanks.
I wonder if possibly the motor was blown up and they got another motor as a core. You can leave the eccentric on as it wont do anything from what I have heard
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Joined: Nov 2004
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From: WA
I don't think so. My dad had a 89 E150 van with a 5.0 HO motor in it fuel injection, I did the timing set on it and it never had a fuel pump eccentric on it.
I wonder if possibly the motor was blown up and they got another motor as a core. You can leave the eccentric on as it wont do anything from what I have heard
I wonder if possibly the motor was blown up and they got another motor as a core. You can leave the eccentric on as it wont do anything from what I have heard
Lead Driver
Joined: Apr 2007
Posts: 5,958
Likes: 105
From: Houston
Thanks Rusty. I guess that could be true, but after seeing the motor, motor mounts and other pieces and parts it sure looked like the original. I have found a couple of things around the internet that said Ford had continued to install the eccentric on EFI motors, was just asking here to see if anyone else had experienced this. Anyway, it appears I am set after buying a new timing chain cover and mechanical fuel pump (will be delivered late this week).
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