Fuel Pump Eccentric

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Dec 17, 2006 | 02:49 PM

jcg82

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From: ellerbe

Fuel Pump Eccentric

Can someone tell me what it is and what does it do. I am putting a timming chain on my truck. And it said to remove this. And does the 400 have an oil slinger. Because I did not see one.

Dec 17, 2006 | 07:39 PM

slinger34

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The fuel pump arm rides on it. It is like a cam lobe for the pump. Dont know about the oil slinger.

Dec 17, 2006 | 10:40 PM

nebechanezer

Tuned

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i just put in a timing chain in my 400. the eccentric comes off w/ the bolt that holds your cam timing gear on. my eccentric was a two-peice, was just a ring in a ring, that slid on each other. there is a pin on the eccentric that goes into the cam timing gear. like slinger34 said, the fuel pump arm rides on the eccentric, and like a cam lobe, it moves the fuel pump arm up and down to pump fuel. my 400 didnt have an oil slinger. i think that is for the 460's. it was mentioned in the book i was using when i was working on my engine.

Dec 17, 2006 | 10:53 PM

Spaznaut

Fleet Mechanic

Joined: Aug 2004

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From: NE Tennessee

Once you see it you'll understand what it is and how it works. Is needed for a manual fuel pump. You can leave it off if you go electric

Don't forget to reinstall it. Had a friends dad did that lol. Couldn't figure out why the fuel pump wouldn't work.

Dec 18, 2006 | 01:00 PM

jcg82

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From: ellerbe

Thanks guys learn something new everyday.

Dec 18, 2006 | 05:16 PM

mark a.

Lead Driver

Joined: Mar 2004

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It would be a good idea to put some kind of thread lock on the bolt. I had one come loose once.

Dec 19, 2006 | 08:36 AM

jcg82

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From: ellerbe

Yeah I more then likely will. I put it on all of my bolts. Just for added security.

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Dec 19, 2006 | 12:59 PM

rchewitt50

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From: Auburn, WA

Quote:

Originally Posted by Spaznaut

Once you see it you'll understand what it is and how it works. Is needed for a manual fuel pump. You can leave it off if you go electric

Don't forget to reinstall it. Had a friends dad did that lol. Couldn't figure out why the fuel pump wouldn't work.

I would re-install it. Even if you are electric it won't hurt anything, and it gives you that option to go back to mechanical if needed (I keep an extra mechanical behind the seat along with a module and some other items just in case) Not that you are using electric, but if you did