I wonder the same thing. It is possible to get impurities in your gasoline.
What if this was all related to a few tanks of crappy gas?

Ponder it Swoope.

 

i'm still betting on :
crappy gas(which is inevitable eventually)
+
premix not "mixing" well
=
sludge

at least until swoope talk to the mad scientists

 

So, in lieu of the dump and fill method, do you advocate fill, dump, fill, dump, or just fill and dump?

 

I'm gunna have a guess wrong type of premix .

I always go for the ones that state they are for premixing and not specifically for use with injection systems . Never had an issue in 60000 km . But hey i'm just a kiwi and not on the smart people list so whadoiknow

 

mix in another container, fill halfway. add premixed premix. then dump.. then fill the rest of the way.

beers

 

this is the best answer.

beers

 

interesting...

swoope, how much fp+ are you premixing with now per tank (without any other premix)?

I think fp+ alone would flow very well and mix into the tank without the need to mix it in a container before putting into the tank. Idemitsu (which I mix fp+ with) is substantially thicker (not as thick as something like Lucas UCL though), but a quick shake of the mixing bottle dilutes the 2 very fast.

 

Thats what I was thinking!
Did you guys see the pictures I posted last year in the premix thread of the racing beat premix container I cut in half?

Well the stuff at the botton of them containers looks like what was on StealthTL and Swoope filters.
Thats why I only use Idemitsu premix. I have cut all the quorts in half and have never NEVER found any stuff at the bottom of Idemitsu. on top of that I always keep a quort of Idemitsu premix in my trunk all year around

 

fp+ ~2oz, idemitsu ~5oz. and i have been premixing the premix for the last 10k miles.

beers

 

gotta be a better way though, thats just inconvenient.

 

so just to be clear.. you have a mixing bottle filled with fp+ and idemitsu AND also gasoline? then you pour that bottle in half-way at the pump?

if so, that's allot of work

 

not to mention dangerous when sticking the gas nozzle into an orifice it wasn't meant to be in

 

Yea some stations wong even let you add gas additives at the pumps.

Swoope, what octane are you using? 91?

 

New theory

gas by itself = fine . can't argue with that one

Premix + gas = works fine . Just ask the millions of 2 stroke premixers around the world . Sure they recommend you shake it up before use but that is just for even distribution .

Idemitsu + gas = works fine . Been there done that- used a case

Fp+ + gas = OK probably - that is what it was designed to do right ?

Fp+ + premix + gas = ??????????????????????????


Ten points for guessing which one has the most question marks hanging over it

 

swoopes not the only one to experience this though is he? or did we never get enough data(pics) to verify if any of the other socks were in the same shape?

 

olddragger had similar issues a long time ago and he was mixing fp and premix also ....... just sayin

 

ah... the connection is starting to make more sense then

 

Wow. Come on expo1~!

 

My car runs fine, but I am going to be at the mazmart meet and since swoope will be there with his tool ( that reads funny ) why not take a look at a pump that has used pre-mix.

 

Removing the fuel pump once a year or so to inspect it actually seems easier than premixing the premix to me...

 

Swoope,

How's Fraken Pump running? Got a few concerns with what you have done.

Couple of questions / comments:
1) What was the reasoning to cutting the hole in the reservoir?
2) How are your low fuel start ups?
3) Have you had any starvation issues? (more than normal anyways)

Reason for questions:

- The reservoir's main purpose is to hold fuel around the pump in low fuel conditions, for dynamic handling, start ups & start ups on grades.
- Cutting the hole in the bottom has now prevented the reservoir from ever filling up, it seems like a significant sized hole, bigger than the inlet flow rate of the reservoir j/p can keep up with anyway
- I would expect that you would see longer crank times during low fuel start ups & starvations issues that were fairly prevalent before may now become worse

Above is what I would be concerned with, but I have been wrong before. If it's been working fine that congrats!

 

Hey Howard --I think I can respond somewhat to your ?
Swoope was having track starvation with 3/4 of a tank.
his problems increased to the point that the car was stalling (fuel supply issues)during everyday driving--normal stuff.
The sock you see is an attempt to get a bigger sock on the system and to go with a 70 mic size versus our small 30 mic version.

Cncerning the can/sock itself--- i have done a couple of things
1 plastic surgery type needle (approx 70-90 mic size) punched a bunch of holes into the oem sock. in testing pase now
2- the can has a channel in it that flows per venturi fuel to the outside of the can. I closed that up so the venturi only emptys into the can.
3- the top part of the pump assembly is not far from the top lip of the can when you compress it to install. That plus the fact the assembly is almost up agaisnt the front drivers side gas tank wall does not promote fuel going into the can. If you look at the top part of the can a lot of it is actually sealed and there is not a whole lot of room for fuel to get in. SO I notched the fron lip of the can to promote that flow into it. It does help. Can volumne has increased during low tank volumne times. Example my can was approx only 1/3 full when i pulled the pump and there was approx 2 gallons of fuel in the tank itself. After i did the modifications, i rechecked --again with approx 2 gallons in there (just when warning light comes on) and the can was almost full. I had as many controls in place as casually possible.
Seems to have had a positive affect. Now where it has helped with the issues--I dont know yet.
Whats the cost on fuel pump testing?
I will be at Mazmart 1/31 and he has an 09 pump and I cant wait to see it.
olddragger

 

Can the 2009 fuel pump be installed in the 2004-2008 fuel tanks or would the entire fuel tank have to be swapped out? Is the 2009 fuel pump compatible with the wiring harness and PCM of the 2004-2008 models?

 

fp?

What is that? Franken Pump?

Didn't we discuss that MMO has a solvent in it as an ingredient, and it's not good for our seals?

I used MMO all the time on my Harley. All you have to do is look at it and it mixes.

 

Well I use Protek-R fuel lube but instead of adding 4oz to 12 gallons I added 2oz and I always did it when the fuel was between quarter and half full. So am I in trouble? I’ve never use any other premixes.