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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 11-12-2015, 01:12 PM   #15
sprintamx
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Originally Posted by ztan View Post
For those of you who have changed the fuel pump, also check the gasket installation: there is an outer flange that points downward and the gasket should be inserted into the tank rim before the pump assembly is put in. If the pump + gasket are inserted together and squished down, the gasket flange is likely to flip and not seal.
How do you hold and install the gasket in the tank opening before inserting the pump canister? Use of the silicone lube mentioned?

Thanks.

Last edited by sprintamx; 11-12-2015 at 02:01 PM.
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Old 11-12-2015, 04:06 PM   #16
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How do you hold and install the gasket in the tank opening before inserting the pump canister? Use of the silicone lube mentioned?

Thanks.
Slide gasket off pump canister and seat that into the tank lip with fingers first making sure the gasket seats. After that putting the canister in is easy.
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Old 11-12-2015, 04:14 PM   #17
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Slide gasket off pump canister and seat that into the tank lip with fingers first making sure the gasket seats. After that putting the canister in is easy.
Is the gasket likely to get pushed down into the tank? Is it advisable to use some type of lubrication between the gasket and the canister?

And thank you for the diagram!

Aaron
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Old 11-12-2015, 04:18 PM   #18
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Slide gasket off pump canister and seat that into the tank lip with fingers first making sure the gasket seats. After that putting the canister in is easy.
Also, in the diagram you posted, the "OK" image shows the gasket fully covering the lip of the threaded tank opening. So, I want to make sure that the gasket is evenly seated ON the lip and be careful when installing the canister and threading the locking ring not to twist or pinch the gasket off the lip, right?

This looks like one of those fiddly things that is all too easy to mess up.

Thanks again.
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Old 11-17-2015, 11:56 PM   #19
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This looks like one of those fiddly things that is all too easy to mess up.
I'd be surprised if anyone manages to drop the gasket into the tank, but is is pretty large and easy to fish out if you do.

This one is not fiddly at all and rather difficult to mess up.
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Old 11-18-2015, 07:38 AM   #20
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How do you hold and install the gasket in the tank opening before inserting the pump canister? Use of the silicone lube mentioned?

Thanks.
Dont use silicone sealant , you want silicone lubricant or similar to stop gasket catching and let lock ring turn freely
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Old 11-18-2015, 03:09 PM   #21
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Got the gaskets, reviewed the service manual and the posts here (thanks guys!) and set to work. The service manual reads as if you're supposed to put the new gasket on the canister assembly before reinserting it into the tank, but then provides a description and diagram for "lubing" the inside of the gasket with gasoline while the gasket is inserted in the tank; meaning that the gasket goes first, then seat the canister.

Anyway, I seated the gasket first then fitted the canister, lubed up the locking ring plate and got the job done. All seems well at the moment and we'll see with the next fill-up whether I screwed something up.

Thanks again for the hand-holding.
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Old 12-28-2017, 01:23 AM   #22
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Make sure the fuel lock ring is tightened down all the way. It's pretty tough to tighten. Mine did the same until I realized it was a whole thread too loose. Seemed tight until I checked and tried to tap it tighter. I'm assuming you guys with this issue have changed the fp? If not then it may be a warranty issue.
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The Fuel lock ring was the answer to my woes. I thought I tightened it down as hard as possible after initial install. When I went back to double check it was easy enough to turn by hand. Thanks zkv476!
I have the same issue and want to check it tomorrow.
Is the Fuel Lock Ring inside or outside the car?
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Old 07-14-2019, 04:08 PM   #23
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Just so you don't have to hunt for it: 42025CA001
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Old 07-14-2019, 06:56 PM   #24
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Garage
dielectric grease for spark plug boots works well for lubing the gasket too
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