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what fuel pump
I have decided to replace the fuel pump, the fuel check valve and the hoses on my car.
From day one the pump is very loud i can hear it over everything, it is mounted nicely with rubber it is just one loud device. I want a new one. What are my choices here? I think mine is factory unit. Thank you.
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1974 911 coupe 4 speed |
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Location: west michigan
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Is it loud enough to hear over the engine running noise?
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78 SC Targa Black....gone 84 Carrera Targa White 98 Honda Prelude 22 Honda Civic SI |
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Mine started humming real loud after a 100 miles jaunt in rural IA.. Once they start humming - its the beginning of the end. Ask me how I know.. ![]() e.g. Ive done a couple roadside fuel pump replacements (in BMW's)..
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1981 911SC |
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Location: CO
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Have you cleaned the pre-filter in the tank? It would be a drag to replace the pump and have the same noise from cavitation.....
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Jeff 74 911, #3 I do not disbelieve in anything. I start from the premise that everything is true until proved false. Everything is possible. |
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It is loud enough to hear it even with bisimoto sound chamber so yes I can hear it.
No I haven’t cleaned he pre filter. I’ve taken the pump out and all looked clean to me. I have new fuel filter in the engine bay. By the way where is the fuel tank filter located?
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1974 911 coupe 4 speed Last edited by kavadarci; 06-03-2018 at 02:48 PM.. |
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Chris '75 911s Targa |
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Yeah I tried to remove that when I attempted to empty the tank, it was a no go it felt like I could brake the whole bolt out of the metal.
Not sure how much forse is required.
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1974 911 coupe 4 speed |
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Just make sure where ever you buy it from, get a warranty, ask me why :-)
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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Here is a video of the fuel pump in action.
Is this considered noisy pump? https://youtu.be/EsYqEnTwg-Q
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1974 911 coupe 4 speed |
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I wouldn't remove the bottom nut unless you are going to clean (or drain) the tank / filter.
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1981 911SC |
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I wouldn't mess with it - Its a cheap insurance policy to change. They can go at any time and Murphy's law dictates it'll be at the worst time. Just google "humming fuel pump" if you're not a believer..
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1981 911SC |
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1974 911 coupe 4 speed |
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No, yours is in the rear and is different than the SCs
You can send the old pump out for rebuild. I have put a turbo rear pump in there before. Bruce |
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Mine is in the front
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1974 911 coupe 4 speed |
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My research shows: 91160811006 Assuming you have CIS?
Does it look like this one? Fuel pump for Porsche 911 - Porsche Classic Our host has a BOSCH unit for $110.. (Same Porsche part number - 91160811006)
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1981 911SC |
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Still here
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Yes ticking is from the turn signal.
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1974 911 coupe 4 speed |
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