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Fuel pump rod--which end is up?

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Old Jun 19, 2002 | 04:38 PM
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Default Fuel pump rod--which end is up?

I read about using a hack saw blade to hold up the fuel pump rod to install the new pump on my BB. Took the liitle plug out below the pump mount and the rod slid right out. Stupid me, I didn't look at which end was the pump end and now I need to put it back together. One end is slightly rounded, the other is perfectly flat. Anybody know which end is which?

JB
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Old Jun 19, 2002 | 04:45 PM
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Default Re: Fuel pump rod--which end is up? (JB)

Sorry Pal...I don't remember...I had to replace my fuel pump several months ago, but I just can't recall...I want to say that the flat side goes into the block. :confused:
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Old Jun 19, 2002 | 05:00 PM
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Default Re: Fuel pump rod--which end is up? (JB)

I believe the rounded end goes against the cam since it performs just like a lifter. A flat end would scrape the cam and take out that loob. Try some heavy duty grease around the top of the rod, it will hold the rod up in there. Of course this doesn't always work, but what does. I used a wire bent into an 'L' last time.
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Old Jun 19, 2002 | 05:05 PM
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Default Re: Fuel pump rod--which end is up? (Fevre)

Hey guy's .... Take out the bolt in the front of the block in line with the push rod. Temporarily use a longer bolt to hold the push rod up. Piece of cake.... Just remember to put the short bolt back when you're done. Small blocks only! :D
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Old Jun 19, 2002 | 05:09 PM
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Default Re: Fuel pump rod--which end is up? (silvervetteman)

You crazy! :crazy:

That makes TOO much sense. :jester Can't believe I have never heard that before. I'll have to check if I have a bolt in there on my new crappy engine.
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Old Jun 19, 2002 | 05:32 PM
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Default Re: Fuel pump rod--which end is up? (silvervetteman)

Hey guy's .... Take out the bolt in the front of the block in line with the push rod. Temporarily use a longer bolt to hold the push rod up. Piece of cake.... Just remember to put the short bolt back when you're done. Small blocks only! :D
The only way to fly :D :D

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Old Jun 19, 2002 | 05:43 PM
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Default Re: Fuel pump rod--which end is up? (JB)

The grease worked for me. Just put enough on to keep it from sliding out. The bolt trick is a good idea.
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Old Jun 19, 2002 | 07:22 PM
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Default Re: Fuel pump rod--which end is up? (JB)

Most of the fuel pump rods I have seen are flat on both ends. I would think if this is your case it should not matter.

Mark B.
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Old Jun 19, 2002 | 07:37 PM
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Default Re: Fuel pump rod--which end is up? (Sigforty)

Most of the fuel pump rods I have seen are flat on both ends. I would think if this is your case it should not matter.

Mark B.
yup...mine is flat on both sides too...both sides should do the trick. I'd go with flat side in block tho.
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Old Jun 19, 2002 | 07:43 PM
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Default Re: Fuel pump rod--which end is up? (Sigforty)

Most of the fuel pump rods I have seen are flat on both ends. I would think if this is your case it should not matter.
Nope, it's definitely got rounded edges on one end and is very slightly dimpled right in the center. The other end's completely flat with sharp edges. I'm pretty sure it's the original rod.

JB


[Modified by JB, 6:10 PM 6/19/2002]
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Old Jun 19, 2002 | 09:51 PM
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Default Re: Fuel pump rod--which end is up? (JB)

Follow-up: a gearhead buddy of mine says definitely flat side toward cam, side with rounded edges toward pump, so that's how I think I'm going to install it. Any big block guys want to chime in?

JB
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Old Jun 19, 2002 | 10:35 PM
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Default Re: Fuel pump rod--which end is up? (JB)

It is flat side on cam.
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Old Jun 20, 2002 | 05:36 AM
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Default Re: Fuel pump rod--which end is up? (Binnie77)

Then why are lifter faces convex? Seems the same would hold true for the pump rod end that mates with the cam.
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