went to a couple sites---------one said that "actual product may vary"------another wanted a vin# and year----------if you can help me find a "buyer friendly" site and tell me the year and info on the car i will be glad to buy one of these critters and test it...............RC
Premature Walbro Failure
- Thread starter t-topflyer
- Start date
went to a couple sites---------one said that "actual product may vary"------another wanted a vin# and year----------if you can help me find a "buyer friendly" site and tell me the year and info on the car i will be glad to buy one of these critters and test it...............RC
- Joined
- May 27, 2001
The intank wont be able to push through the external. You need to run them both all the time. This was common back in the day. Almost EVERYONE did this. Will it shorten the life of your intank pump? Yes, it will.. but it works.
Its on my list of things to do to fabricate a setup for the Bosch intank pump. Like I said in the Supra thread, if someone wants to send me an NA hanger and a Bosch pump, Ill turn my fab guy loose on it and make it happen if theyre willing to pay for his time. Once we get this race car project out of the way and I can concentrate on doing stuff that doesnt pay the bills, Ill look into it myself if no one steps up before then.
Jay I have plenty of hangers here if you need some.
D__n Fuel Pump Issue!!!!!!!!!
Well guys I bought a pump from someon here on the board that is about a year old. I bought it cuz as far as I can see this problem got real big as of may of this year. Alot of people have mentioned this problem being the whole chinese pump infiltration, so I figured an older one for 40 bucks might be worth it! Now I am not too sure on this pump cuz the the guy that had it dremeled alot of the numbers of!
(why I dont know, under investigation) Anyways there are some differences in the pumps. The pump that failed has a white bottom and even though its supposed to be a 255 lph the pickup opening is smaller than on the pump I just purchased! Granted it is still larger than a stock replacement pump. Also the way the pumps are engraved is very different. This could all be cuz this is an older pump but it could also be cuz one is a real walbro and the other is a knock off! I will try to post pics!
Well guys I bought a pump from someon here on the board that is about a year old. I bought it cuz as far as I can see this problem got real big as of may of this year. Alot of people have mentioned this problem being the whole chinese pump infiltration, so I figured an older one for 40 bucks might be worth it! Now I am not too sure on this pump cuz the the guy that had it dremeled alot of the numbers of!
(why I dont know, under investigation) Anyways there are some differences in the pumps. The pump that failed has a white bottom and even though its supposed to be a 255 lph the pickup opening is smaller than on the pump I just purchased! Granted it is still larger than a stock replacement pump. Also the way the pumps are engraved is very different. This could all be cuz this is an older pump but it could also be cuz one is a real walbro and the other is a knock off! I will try to post pics!I too think it will be a single sub-part that is made "abroad" that previously was US made. Globalism is here. It is almost getting some of us killed.
Ethanol cant be helping the plastics live any better, but that would apply to all applications.
Ethanol cant be helping the plastics live any better, but that would apply to all applications.
TurboMonte 2
Car Nut
- Joined
- Mar 21, 2006
Richard, If you specify a 1998 Toyota Supra (Twin-Turbo), VIN E, Engine code 2JZGTE, I would think you'd have info necessary ordering from any site--for the pump under discussion here.
Better yet, I'll buy the Denso 950-0155 (complete kit) from you after you're done testing--just ship all to me--[just please don't pay more than the $203.63 as listed by SparkPlugs.com]...
I'm still "dead in the water" (actually driveway) w/ my defective Walbro and am anxiously awaiting a viable replacement--which I feel (hope) "this Denso" will be...
Thanks,,, Monte
give me a call when you get a chance------336-229-5554
- Joined
- May 28, 2001
Along the "misc info" line:
Was talking to my EFI parts supplier, about o'rings.
[I need some for the newer model Siemens in the LS engines.]
Seems there is some question as to why Siemens has gone to elastomer rings. He suggested that the newer fuels w/ alky in it, may be the reason for the switch.[Also, for the Flexfuel engines].
I'm wondering if the alky is killing the pumps? [I see alot more stations w/ the 10% ethanol stickers on the pumps.]
NE1 w/ input?
Was talking to my EFI parts supplier, about o'rings.
[I need some for the newer model Siemens in the LS engines.]
Seems there is some question
I'm wondering if the alky is killing the pumps? [I see alot more stations w/ the 10% ethanol stickers on the pumps.]
NE1 w/ input?
BlackoutDrunk
Spring Loaded Idiot
- Joined
- Jul 30, 2007
In Chicago we've had 10% ethanol since the early 90's I believe, and my old walbro is just starting to go. My old pump is about 6-7 years old so I don't think the 10% ethanol is the killer.
No one is claiming the 3270 to be a "super pump". In this thread, it states that:
http://www.turbobuick.com/forums/general-turbo-buick-tech/261340-fuel-pump.html
Seems fairly clear to me.
http://www.turbobuick.com/forums/general-turbo-buick-tech/261340-fuel-pump.html
Seems fairly clear to me.
Either something has gone bad in the manufacture of these over the years or your sample of one was a weak contender.
I have a flow graph from Airtex dated 4/4/92 (the scan is too big to attach). It is the 3270 at 13.5 volts. The results they got from their samples averaged from the production line is quite different. It's not very readable so here are the numbers:
psi -- gph
0 60
12 55
32 50
46 45
55 40
61 35
65 30
70 25
72 20
76 15
81 5
85 0
Seems about enough for 420 hp (assuming 100% duty cycle).
Mike Licht
I was here first
- Joined
- May 23, 2001
You do not have to worry about that, I have lots of time invested in this. I have some peliminary info from them but cannot share it yet. We are working out a few more details now but Walbro has assured me that everyone will be taken care of. As soon as I get the go ahead I will post up the details.
Thanks for you patience
Mike
Under Pressure
New Member
- Joined
- Feb 8, 2004
sounds good Mike...
TurboMonte 2
Car Nut
- Joined
- Mar 21, 2006
pump
Got that older walbro in there last night and got on it today, Runs ok but have some knock which I never had with the walbro that went bad so gonna try to fine tune tomorrow! Its kinda weird but I think its cuz now the fuel preasure is to high! When I got that crappy pump from advance auto, I had to adjust the regulator and now with this pump its like at 42 line on and 47 line off! My millivolts were always like 770-790 no at full throttle its like 828! I read somewhere on here before that too much fuel will also give knock! We will see tomorrow!
Got that older walbro in there last night and got on it today, Runs ok but have some knock which I never had with the walbro that went bad so gonna try to fine tune tomorrow! Its kinda weird but I think its cuz now the fuel preasure is to high! When I got that crappy pump from advance auto, I had to adjust the regulator and now with this pump its like at 42 line on and 47 line off! My millivolts were always like 770-790 no at full throttle its like 828! I read somewhere on here before that too much fuel will also give knock! We will see tomorrow!
