Mechanical Fuel Pump Tapping
TGO Supporter
Joined: Jul 2003
Posts: 4,803
Likes: 2
From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
How do you know its the mech. fuel pump that is making that noise? have you, per RB's favorite suggestion, stuck a piece of heater hose in your ear and listened to it and confirmed that it is indeed the pump?
TGO Supporter
Joined: Jul 2003
Posts: 4,803
Likes: 2
From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
Well, if you are certain thats what it is, i would just go to the parts store and ask for a replacement. I think delco makes a pump.
What part of the pump is it coming from?
What part of the pump is it coming from?
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Member
Joined: Apr 2004
Posts: 430
Likes: 0
From: Hattiesburg, MS
Car: '87 Camaro SC
Engine: 305 LG4
Transmission: 700r4
It's seems to be coming from the top, but I could be wrong...never had one make this noise before. I thought it was going to be the timing chain but the noise is coming from the pump. I would much rather replace the fuel pump though!!!
Joined: Mar 2000
Posts: 43,187
Likes: 46
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Most likely the spring has taken a set so it isn't as long as it should be. No reason to think it is going to "tear up soon", although it might be marginal at higher RPMs.
I had a brand new pump make noise. The engine sounded like an Olds diesel. It was a bad spring.
I had a brand new pump make noise. The engine sounded like an Olds diesel. It was a bad spring.
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theshackle
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