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Fuel Pump Solution - All Failure Modes

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Old 09-15-2009, 12:16 PM
  #176  
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Originally Posted by rodjonathan
wish i had read this before ordering my oem replacement LOL ..
You can still get the pump and modify the old assembly you took out. Keep the new one as a spare, or sell it. So you still have options.
Old 09-15-2009, 01:52 PM
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^ Count on an order from me when you guys are setup.
Old 09-15-2009, 03:38 PM
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Originally Posted by Charles R. Hill
I am too busy getting ready for SSXII to read your "revelations". When was the last time you read mine?
I am now trying to source the o-rings for inclusion with the pump when ordered from BHR. I am also trying to source a taller o-ring for perfect fitment.

May want to include the fuel injector clamp as part of the kit. I could not find any store within an hour drive that had a non crimp clamp that would go small enough. Found plenty that would go down to 11mm, but nothing smaller.
Old 09-15-2009, 03:53 PM
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Originally Posted by MazdaManiac
Huh? The problem is the opposite - you need more "O" ring height to get the pump to sit in the proper position.
It won't "bulge", it'll fall in!
You put the additional "O" ring on the pump above the existing factory "O" ring.
Look at the pictures of the pumps. The Walbro has a lower shoulder that needs to be accommodated.
Not in my case, Jeff. Thats the basis for the question. I looked at the pics when I took it apart and when installing the new pump. Then again when the retainer cap didn't go back on. using the OE "O" ring its a very tight fit. If I use the additional "O" ring you mention it's not possible to snap the bottom insulator and cap on.

I have checked to make sure that everything seated flush and no extra debris in the way.. SoI'm confused....
Old 09-15-2009, 05:02 PM
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MazdaManiac,

I just realized that you changed the modification to the siphon tube from enlarging the siphon venturi to 1/8 inch to just melting the pop off cap on to the siphon tube.

I have already enlarged my venturi to the 1/8 inch per your earlier instructions. Should I replace it with a stock one and then melt the pop off cap on, or is it safe to melt the cap onto my already modified siphon tube?
Old 09-16-2009, 06:16 AM
  #181  
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I noticed you removed the part of drilling an 1/8? bit through the ventrai and added melting the popoff valve is the drilling still neccessary/benificial? question bump for mrslysly
Old 09-16-2009, 12:17 PM
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Apparently, drilling the venturi was emptying the fuel bowl faster than it could refill it.
When the fuel level would get to a point that the pump was no longer submerged, the pump would empty the bowl entirely.
Old 09-17-2009, 01:05 AM
  #183  
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Originally Posted by MazdaManiac
The '07 - '08 are the same as the '04 - '06.
Only '09 got a new pump.

I've found the solution for the 1/4-tank-empty fuel pump run-out.
really?

did you get my package.. it was the one without a obscure scotch.. i thought it would be cheap this time..

just wondering?

beers
Old 09-17-2009, 10:01 AM
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Originally Posted by MazdaManiac
Apparently, drilling the venturi was emptying the fuel bowl faster than it could refill it.
When the fuel level would get to a point that the pump was no longer submerged, the pump would empty the bowl entirely.

Understand why now.

Last edited by mrslysly; 09-20-2009 at 06:04 PM.
Old 09-20-2009, 03:52 PM
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Everyone reading this you may want to check out my writeup of my experience so far in fuel pump land.

https://www.rx8club.com/showthread.p...19#post3234319

Its a work in progress and more information will be forthcoming
Old 10-06-2009, 09:36 AM
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Jeef,
Find any extra siphons in your stash?
Old 11-05-2009, 12:34 PM
  #187  
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Kind of off topic, but I need to move my fuel pump resistor, any problems with me doing that? I assume it does not matter where it is located.
Old 11-05-2009, 01:32 PM
  #188  
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Hey Jeff: Could you update the first post with the specifics on the o-ring thickness and diameter or part number? I need to run down to Lowes this weekend to get one but will need my car running to do it first.

Thanks!
Old 11-07-2009, 08:18 PM
  #189  
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Victory is mine!

Man that retaining ring is a PITA. Once I figured out the surf/skate style technique and had the wife on the cheater bar it moved with no problem.

The o-ring size I used was1-5/16"ID, 1-9/16"OD and 3/8" wall.

I used a 1/4" hose clamp but a smaller one would have been better.

Thanks for the help Erick, Dan, and Ray!
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Old 11-07-2009, 08:41 PM
  #190  
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cool man - you are now pumped .
What did you use to cap the siphon tube ?
Old 11-07-2009, 08:58 PM
  #191  
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I melted the top on per Jeff's instructions. Just a little Scripto bbq lighter around the outside lip melted it to the top. Don't worry I cleaned any gas off and let it dry first.
Old 11-23-2009, 08:05 PM
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Any ETA on BHR's fuel pump?
Old 11-23-2009, 09:13 PM
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Originally Posted by Kane
I look forward to reading this thread in the morning...apparently;
lol

Al will probably clean it up again. He's just not signed on at the moment.
Old 11-23-2009, 09:20 PM
  #194  
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Originally Posted by MazdaManiac
lol

Al will probably clean it up again. He's just not signed on at the moment.
The mods are ruining my fun.....
Old 11-23-2009, 09:27 PM
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Originally Posted by MazdaManiac
since purchasers will be probably getting a loaner tool and will have a core to return.
A little complicated for us, but a massive time-saver for the customer.
good idea - I'd be into this but I guess you don't want to send your tool too far ????
Old 11-24-2009, 01:27 AM
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Originally Posted by Brettus
good idea - I'd be into this but I guess you don't want to send your tool too far ????
Now THAT sounds like a gay joke! lol

I dunno - I think its about $24 in shipping each way and you would be sending a pump back anyway, so it probably isn't an issue.

We'll have more than one tool out there!
Old 11-24-2009, 05:17 AM
  #197  
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Soooooo..... Mazda Maniac, maybe your pm's dont work.

Are you interested in doing the tune for my car when my s/c kit is done. I choose you because your are the best tunner for the RX8 with the cobb and the cobb is more developed then my previous choice.

I have not been able to get a response from you lately, maybe my pm's have been getting lost in the massive amounts of pm mail you must be receiving

Ben
Old 11-24-2009, 08:23 AM
  #198  
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lol i forgot what this thread was about after reading all that, cant wait to see the fuel solution bhr completes
Old 11-24-2009, 11:41 AM
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Yes, we did.... I'll pm you the details.
Old 11-24-2009, 11:44 AM
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Originally Posted by Benjamz
Soooooo..... Mazda Maniac, maybe your pm's dont work.
Sorry, Ben.
I don't get to PMs too often and, when I do, they fill up as fast as I can answer them.
Use my e-mail - at least that ends up in my face eventually.

Originally Posted by czar
cant wait to see the fuel solution bhr completes
Just look at the first post and you can see it! lol

Last edited by MazdaManiac; 11-24-2009 at 11:53 AM.


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