DI pump Internals - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

DylanFRS · 07-20-2013, 10:03 AM

Quote:

Originally Posted by Tromatic

So far, I do not have the chirp running e-free fuel.

Unrelated...

sato · 07-20-2013, 10:18 AM

Quote:

Originally Posted by WHITE

My crickets died at 3500 miles, and returned around 3800 miles, i love my zombie crickets even more.

Zombie crickets...

Draco-REX · 07-20-2013, 01:49 PM

Quote:

Originally Posted by SkullWorks

Hard to say.

If I was more familiar with the part number designation of the major manufacturers it would be easier I assume. It is VERY similar in foot print to one of the audi pumps I have done R&D on and that specific pump had several manufacturers and revisions....but this is different from each of those.

It is definitely something that FHI could make if they so desired, hyundai also makes alot of these as do Denso, Bosch, and others i assume aswell.

Funny you should mention the similarity to an Audi pump. When I first got the crickets I was worried there was an issue with the pump. But one day an Audi pulled up next to me at a stoplight and it sounded JUST like my car; crickets and typewriters. So I haven't worried about it since. If Audi thinks it's ok, and Audi OWNERS think it's ok, then there's no need to make a fuss about it. It's just a noise and it's only audible at idle. *shrug*

Great write-up btw. Thanks.

Tromatic · 07-20-2013, 07:54 PM

Quote:

Originally Posted by DylanFRS

Unrelated...

I think it is, but I'm not smarterer enough to figure out why. If they come back while running booze free gas, I will admit you are correct.

At this point, I think it may be related to water content. Just a WAG, as I say.

DylanFRS · 07-20-2013, 11:45 PM

Quote:

Originally Posted by Tromatic

I think it is, but I'm not smarterer enough to figure out why. If they come back while running booze free gas, I will admit you are correct.

At this point, I think it may be related to water content. Just a WAG, as I say.

Sorry, I should have specified that I was being sarcastic... Since some people have decided that ethanol and the pump are completely unrelated and that everyone that has had the same experience you did should just mark that off as a coincidence.

whataboutbob · 07-21-2013, 12:16 AM

Thank you for taking the time to write this up!

Area86 · 07-23-2013, 07:30 PM

Quote:

Originally Posted by Area86

Yes I have been on e85 since November with no crickets and I switched back to 91 last week and they were back instantly. I will be going back to e85 after this tank and will see if they go away again.

Sent from my DROID RAZR using Tapatalk 2

I switched back to e85 and the crickets are gone now.

Sent from my DROID RAZR using Tapatalk 2

Ryephile · 07-24-2013, 05:10 PM

Thanks @SkullWorks for taking the time to do a real analysis on the HPFP design.

It's a relief that it's strictly an NVH/perceived problem and not a real problem like the VW Diesel HPFP's.

SkullWorks · 08-12-2013, 01:33 PM

Back to the top,

Too many "new" threads about crickets that are the same old bag of BS.

READ people, look around before you go on a rampage about a problem you didn't even try to understand.

Scenic Driver · 08-12-2013, 03:06 PM

Quote:

Originally Posted by Ryephile

It's a relief that it's strictly an NVH/perceived problem and not a real problem like the VW Diesel HPFP's.

I lived in fear of the TDI pump issue for 3 years and 100k miles, mine never failed :-). I did have the icing intercooler problem though.

Anaxilus · 10-18-2013, 03:49 AM

Quote:

Originally Posted by Draco-REX

If Audi thinks it's ok, and Audi OWNERS think it's ok, then there's no need to make a fuss about it.

Lol, lowering our standards huh?

JSMIL · 10-18-2013, 05:12 PM

Wait a minute! So you are saying the problem is not related to a family of crickets that have made there home in my engine bay? That is a relief and explains why the fumigation of my engine bay did not work. LOL, Just Kidding! Good work on the research. Now if you could only get on that CAD and design a fix for it. Then you could send it to Toyota and ask how their Army of engineers can design this amazing car, but not get the squeak out of the fuel pump after a year. Especially since you were able to diagnose the problem in your room on your home computer. LOL

strat61caster · 10-18-2013, 06:11 PM

Quote:

Originally Posted by JSMIL

Now if you could only get on that CAD and design a fix for it. Then you could send it to Toyota and ask how their Army of engineers can design this amazing car, but not get the squeak out of the fuel pump after a year. Especially since you were able to diagnose the problem in your room on your home computer. LOL

Hunting down the cause of that chirp is not that simple, a redesign is very costly along with the required testing of the new unit. All we've got is one pump cut open and a hypothesis of tighter tolerances being the solution

If it had an impact on performance or durability it would have been fixed before the first unit left the factory.

im2lazy789 · 10-19-2013, 10:48 AM

I am curious if reducing the OD clearance of the washer from 3 mils down to 1.5 or 2 mils would help alleviate the crickets effectively reducing the angle at which the washer can "wedge". Alternatively, it could be possible that it requires more clearance given that the issue seems to be temperature related and the washer could be expanding taking up that little bit of clearance and running into wedging/stiction issues.

Would be nice to be able to have a pump that we can try different size and material washers with without having to grind out the weldment to disassemble.

07-24-2013, 05:10 PM	#36
Ryephile Hot Dog Join Date: Apr 2011 Drives: quicker than arghx7 Location: Metro Detroit Posts: 1,316 Thanks: 103 Thanked 173 Times in 83 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	Thanks @SkullWorks for taking the time to do a real analysis on the HPFP design. It's a relief that it's strictly an NVH/perceived problem and not a real problem like the VW Diesel HPFP's. __________________ "Wisdom is a not a function of age, but a function of experience." Just Say No to unqualified aftermarket products.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Max NA HP on pump gas as of now?	jadewbj	Engine, Exhaust, Transmission	128	02-17-2016 09:28 AM
Engine Internals from CP-Carrillo Now Available!	Infamous Performance	Engine, Exhaust, Bolt-Ons	108	02-13-2014 11:35 AM
Engine internals before FI?	Rejor11	Forced Induction	14	06-04-2013 05:18 PM
stronger/forged internals	Tyson	Engine, Exhaust, Transmission	24	03-15-2013 04:38 AM
How about them internals	nytfury	Engine, Exhaust, Transmission	5	08-27-2012 07:23 AM

08-12-2013, 01:33 PM	#37
SkullWorks Banned Join Date: Mar 2012 Drives: SSM LT MT BRZ Location: SoCal Posts: 1,033 Thanks: 803 Thanked 754 Times in 328 Posts Mentioned: 23 Post(s) Tagged: 1 Thread(s)	Back to the top, Too many "new" threads about crickets that are the same old bag of BS. READ people, look around before you go on a rampage about a problem you didn't even try to understand.

10-18-2013, 05:12 PM	#40
JSMIL Senior Member Join Date: May 2013 Drives: FRS 10 series Location: Pompano FL Posts: 171 Thanks: 41 Thanked 78 Times in 48 Posts Mentioned: 9 Post(s) Tagged: 1 Thread(s)	Wait a minute! So you are saying the problem is not related to a family of crickets that have made there home in my engine bay? That is a relief and explains why the fumigation of my engine bay did not work. LOL, Just Kidding! Good work on the research. Now if you could only get on that CAD and design a fix for it. Then you could send it to Toyota and ask how their Army of engineers can design this amazing car, but not get the squeak out of the fuel pump after a year. Especially since you were able to diagnose the problem in your room on your home computer. LOL

10-19-2013, 10:48 AM	#42
im2lazy789 Member Join Date: Jul 2013 Drives: BRZ Limited DGM Location: Upstate NY Posts: 28 Thanks: 3 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I am curious if reducing the OD clearance of the washer from 3 mils down to 1.5 or 2 mils would help alleviate the crickets effectively reducing the angle at which the washer can "wedge". Alternatively, it could be possible that it requires more clearance given that the issue seems to be temperature related and the washer could be expanding taking up that little bit of clearance and running into wedging/stiction issues. Would be nice to be able to have a pump that we can try different size and material washers with without having to grind out the weldment to disassemble.

User Name		Remember Me?
Password