Trying to change fuel pump, cant open ring on fuel tank

Sav. · 08-05-2022, 02:19 PM

As per title. Just got new turbos installed, have a custom tune I want to put on the car and dial in. This fuel pump upgrade is the last step. I have a generic tool that i am trying to use to remove the ring on the fuel tank. It's not bad but this ring is really stuck on there, and it simply doesnt have the bite to stay locked in position. I have watched a few videos and used the search function prior to attempting this install. The tabs on the ring are getting damaged, and i dont want to damage the ring as it could make removal harder. I was whacking on it pretty good with a flat head/hammer, didnt budge a millimetre. Not sure what I should do next..

any advice appreciated... never attached a picture on forum before, hope it worked.

mainbearing · 08-05-2022, 03:49 PM

I would not use a screwdriver and hammer myself.

What generic tool do you have? You might want to use PB Blaster or Kroil on the lock flange first. And then use a free loaner tool from Autozone, universal fuel pump flange spanner:

https://www.autozone.com/wrenches-pl...nch/110278_0_0

Sav. · 08-05-2022, 04:44 PM

Thats the exact tool i have. I used it just like I saw in videos, slipped off/ring is stuck good. I was skeptical about spraying anything around the fuel tank opening, but looks like that will be the ticket. Thanks for replying.

Serf27 · 08-05-2022, 10:03 PM

Yea try some penetrating oil.

08-05-2022, 02:19 PM	#1
Sav. Private 50 Rep 60 Posts Drives: '08 E92 335i Join Date: Dec 2018 Location: GTA, Canada iTrader: (0) Garage List 2008 BMW 335i [0.00]	Trying to change fuel pump, cant open ring on fuel tank As per title. Just got new turbos installed, have a custom tune I want to put on the car and dial in. This fuel pump upgrade is the last step. I have a generic tool that i am trying to use to remove the ring on the fuel tank. It's not bad but this ring is really stuck on there, and it simply doesnt have the bite to stay locked in position. I have watched a few videos and used the search function prior to attempting this install. The tabs on the ring are getting damaged, and i dont want to damage the ring as it could make removal harder. I was whacking on it pretty good with a flat head/hammer, didnt budge a millimetre. Not sure what I should do next.. any advice appreciated... never attached a picture on forum before, hope it worked. Attached Images __________________ *Not professional advice '08 335i M Sport
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08-05-2022, 03:49 PM	#2
mainbearing Lieutenant Colonel 1094 Rep 1,695 Posts Drives: BMW 328i Join Date: Apr 2019 Location: LA iTrader: (0)	I would not use a screwdriver and hammer myself. What generic tool do you have? You might want to use PB Blaster or Kroil on the lock flange first. And then use a free loaner tool from Autozone, universal fuel pump flange spanner: https://www.autozone.com/wrenches-pl...nch/110278_0_0
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08-05-2022, 04:44 PM	#3
Sav. Private 50 Rep 60 Posts Drives: '08 E92 335i Join Date: Dec 2018 Location: GTA, Canada iTrader: (0) Garage List 2008 BMW 335i [0.00]	Thats the exact tool i have. I used it just like I saw in videos, slipped off/ring is stuck good. I was skeptical about spraying anything around the fuel tank opening, but looks like that will be the ticket. Thanks for replying.
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08-05-2022, 10:03 PM	#4
Serf27 Brigadier General 2877 Rep 4,332 Posts Drives: 335i Join Date: Apr 2018 Location: Sitting in a BMW. iTrader: (-1)	Yea try some penetrating oil.
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