Fuel Pump Assembly Broke

stealth23 · 12-10-2018, 08:24 PM

Took off the fuel pump assembly only to find out the reason why the Z wont start... the assembly was literally just hanging off.. is this a common issue where the fuel pump assembly just breaks off??
I drive my car fairly normal, no track.. 09 370z 100k miles

Was wondering if I should try to DIY fix it or just find a replacement fuel pump assembly.

jchammond · 12-10-2018, 08:27 PM

Quote:

Originally Posted by stealth23

Took off the fuel pump assembly only to find out the reason why the Z wont start... the assembly was literally just hanging off.. is this a common issue where the fuel pump assembly just breaks off??
I drive my car fairly normal, spirited driving no track.. 09 370z 100k miles

Was wondering if I should try to DIY fix it or just find a replacement fuel pump assembly.

It broke away from the top Hat....you can get a billet Hat from CJM Motorsports & those metal rods will push into the hat & be anchored in by set screws

jchammond · 12-10-2018, 08:31 PM

Normally you would heat those plastic tits up with a heat gun & pull the rods out,,,they have a small nipple on them. I haven’t seen one break off before; unless someone has mishandled it in the past

jchammond · 12-10-2018, 08:37 PM

Screenshot of hat.

jchammond · 12-10-2018, 08:51 PM

Others will chime in & help,,,as that bottom piece is a basket for the fuel pump & filter assembly to sit in. It unclips from the housing. There’s a strainer on the bottom of the pump & notice the fuel line does a 180* from the pump....as it pipes back down through a built in paper filter & then up to the top.

madwi · 12-10-2018, 08:57 PM

jchammond · 12-10-2018, 09:07 PM

Quote:

Originally Posted by madwi

WoW...there’s the billet Hat...with a modified pump assembly

turbodog · 12-10-2018, 10:21 PM

Yup, I had the exact same failure. The CJM hat is a nice piece. You do have to cut off the factory wiring harness connector and replace it with one that comes with the hat.

Rusty · 12-10-2018, 10:33 PM

This failure is starting to become more common. phunk is ahead of the curve on this.

jchammond · 12-11-2018, 05:58 AM

Unsure how long the oem paper filter last (before stopping up) others may know. You may be able to install a new one (in tank) without adding a new fuel line & making a return system,,,as the oem internally regulates fuel pressure & uses bypass pressure to work a venturi to pull fuel from the other side of tank...that’s the other hose you will see in tank that crosses over...”Phunk” is the owner of CJM Motorsports & he should be able to answer all questions....but his setup is definitely better than OE

Rusty · 12-11-2018, 09:11 AM

Quote:

Originally Posted by jchammond

Unsure how long the oem paper filter last (before stopping up) others may know. You may be able to install a new one (in tank) without adding a new fuel line & making a return system,,,as the oem internally regulates fuel pressure & uses bypass pressure to work a venturi to pull fuel from the other side of tank...that’s the other hose you will see in tank that crosses over...”Phunk” is the owner of CJM Motorsports & he should be able to answer all questions....but his setup is definitely better than OE

All the OP needs is a CJM top hat.

AlWakRa · 12-11-2018, 02:13 PM

Quote:

Originally Posted by madwi

I have the blue version

looks nicer

madwi · 12-11-2018, 05:43 PM

Quote:

Originally Posted by AlWakRa

I have the blue version

looks nicer

jchammond · 12-11-2018, 08:22 PM

Quote:

Originally Posted by madwi

At least he can probably see the threads of the AN fittings being screwed together,,,gotta have a dang good light with everything black

phunk · 12-14-2018, 07:58 PM

I appreciate all the referrals from you guys.

Current production runs are bright black with laser white logo. As of 2 weeks ago, the stock type install kit include a swivel bulkhead fitting that can freely spin around (other than when it contacts the plugs of the unused holes). Hoping to update the website to reflect this sooner than later.

12-10-2018, 08:31 PM	#3 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 58 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684395	Normally you would heat those plastic tits up with a heat gun & pull the rods out,,,they have a small nipple on them. I haven’t seen one break off before; unless someone has mishandled it in the past __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

12-10-2018, 08:51 PM	#5 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 58 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684395	Others will chime in & help,,,as that bottom piece is a basket for the fuel pump & filter assembly to sit in. It unclips from the housing. There’s a strainer on the bottom of the pump & notice the fuel line does a 180* from the pump....as it pipes back down through a built in paper filter & then up to the top. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

12-10-2018, 08:57 PM	#6 (permalink)
madwi A True Z Fanatic Join Date: Sep 2012 Location: West Michigan Posts: 31,410 Drives: Granma red Z Rep Power: 2684429	JARblue, cv129, stealth23 and 3 others like this.

12-10-2018, 10:21 PM	#8 (permalink)
turbodog Base Member Join Date: Sep 2010 Location: Dallas, TX Posts: 129 Drives: 370Z Rep Power: 15	Yup, I had the exact same failure. The CJM hat is a nice piece. You do have to cut off the factory wiring harness connector and replace it with one that comes with the hat. jchammond likes this.

12-10-2018, 10:33 PM	#9 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,217 Drives: 2011 Nismo GM 6M Rep Power: 2684438	This failure is starting to become more common. phunk is ahead of the curve on this. JARblue, cv129, FaustoP and 3 others like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

12-11-2018, 05:58 AM	#10 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 58 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684395	Unsure how long the oem paper filter last (before stopping up) others may know. You may be able to install a new one (in tank) without adding a new fuel line & making a return system,,,as the oem internally regulates fuel pressure & uses bypass pressure to work a venturi to pull fuel from the other side of tank...that’s the other hose you will see in tank that crosses over...”Phunk” is the owner of CJM Motorsports & he should be able to answer all questions....but his setup is definitely better than OE Rusty and old guy like this. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

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