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Mechanical Maintenance (Oil, Fluids, Break-In, Servicing) Everything related to the mechanical maintenance of the FR-S and BRZ


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Old 09-13-2018, 07:45 PM   #29
Whoodoo
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Yea, let us know if DW can check pump function.
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Old 09-15-2018, 08:15 AM   #30
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So another little suspicion I have is that the top of my fuel pump was not properly seated inside the housing. The Deatschwerks install kit comes with 3 o-rings that go on the pump outlet nipple, which makes a seal when you shove it up into the housing. When i took mine apart the first time, the pump just kind of fell out. When I put it back together yesterday, I lubed up the o-rings with some petroleum jelly and really push it into the housing to make sure it seated properly.

I'm going to try to find a replacement c-clip before putting it back together then I'll report back if it changed anything.
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Old 09-22-2018, 05:44 PM   #31
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I found my problem.



The video I used as a installation guide for the pump used the "3 O-ring" method instead of reusing the spacer. The result is that over time the o-rings pushed out of the housing and caused an internal leak. This resulted in both the siphon not working (9 gallon empty) and an occasional hard start issue.

I have reinstalled the spacer (with a slit to accommodate the DW300c ridges) and 2 new o-rings. All seems well so far.
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Old 09-23-2018, 05:10 PM   #32
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yea, for now I think we can point toward an improper seal at top of the pump. Thanks for helping me figure this out!
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Old 09-24-2018, 09:29 PM   #33
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Originally Posted by Ultramaroon View Post
This has merit. Hmmm...


Hey, @soulreapersteve, what did they replace in your tank?
Super late reply.. but it was the fuel sender unit!
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