Author Topic: Fuel pump  (Read 471 times)

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Offline Tim Hensley

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Fuel pump
« on: May 10 2019, 01:18:58 AM »
do I buy another Racetronix or TT pump?
Arizona GN109 forged rotating assembly
DLS 210-210
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Extreme Auto stage II trans and converter

Offline TexasT

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Re: Fuel pump
« Reply #1 on: May 10 2019, 08:35:42 AM »
Something happen to the one you have?

I see the other thread. I'd look over the wiring real good. That through the sender bulkhead connector has a pretty small pair of contacts and doesn't take much corrosion to not convey the power.

I have a duetch werks pump but any should work.
« Last Edit: May 10 2019, 08:41:22 AM by TexasT »
Rich

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Offline daveismissing

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Re: Fuel pump
« Reply #2 on: May 10 2019, 11:16:14 AM »
How old was your Racetronix?  So far not heard anything bad about the DeatschWerks, I put them in both cars. I would like to know the real origins of the TT pumps. You can probably still get that Quantum hangar TexasT and I bought if you need one.

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Offline TexasT

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Re: Fuel pump
« Reply #3 on: May 10 2019, 05:37:39 PM »
If you are going to replace that too id spring for the racetronix bulkhead wiring harness. I think it was about $50 but well worth not having that stock one be a problem. I just used a couple hose clamps to hold the pump on the hanger.
Rich

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Offline Tim Hensley

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Re: Fuel pump
« Reply #4 on: May 10 2019, 07:39:18 PM »
Itís got the bulkhead harness Iíll get it apart tomorrow and get to the bottom of it. Got a old255 Walbro itís 5 years old but it  never quite
Arizona GN109 forged rotating assembly
DLS 210-210
Champion irons
Extreme Auto stage II trans and converter

Offline Tim Hensley

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Re: Fuel pump
« Reply #5 on: May 14 2019, 06:26:23 PM »
All of the harness was good pump is open
Can figure out why the pump is open and not shorted out
New pump on the way
Arizona GN109 forged rotating assembly
DLS 210-210
Champion irons
Extreme Auto stage II trans and converter

Offline wmsonta

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Re: Fuel pump
« Reply #6 on: June 15 2019, 10:28:09 AM »
I will guess, I am going to have to change my fuel pump again. I changed the oem pump for a Walbro years ago. The Walbro lasted 15+ yrs and about 40 miles. I added a hot wire kit because I was unable to get a full 12 volts at the pump.
For the first time, the car does not idle well when it was started. It shows 34# of pressure, line off. It is not misfiring. It does not want to take throttle like it should.
I would listen to anything/everything. I am not wanting to alter the fuel sending unit if I don't have to.
This car is stock and will probably be sold. That said, I will want this fixed right.

Offline earlbrown

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Re: Fuel pump
« Reply #7 on: June 15 2019, 02:37:31 PM »
You need to verify you don't have a split hose (or a leaky pulsator) in the tank before you assume it has to be the pump.


...or a clogged filter.
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Offline Steve Wood

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Re: Fuel pump
« Reply #8 on: June 15 2019, 02:50:17 PM »
years ago, many of the aftermarket pump kits did not come with the correct type of hose that was built to be submerged.  Instead, they used conventional hose which begins to dissolve when submerged in gasoline.  Buick vendors are not all rocket scientists...
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Offline wmsonta

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Re: Fuel pump
« Reply #9 on: June 15 2019, 03:45:08 PM »
I changed the filter which brought the idle rpm up to normal.From memory, I did away with the pulsator.I will take it apart tomorrow and have a look.

This will make 4 fuel pumps, I have changed in 6-7 months. They evidently do not set well. Evidently, the valving goes as the motors all ran.

Thanks for the replies. I am considering a DW 200, as long as it will install w/o modification.

Offline earlbrown

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Re: Fuel pump
« Reply #10 on: June 15 2019, 10:41:07 PM »
30R10  is the ONLY fuel hose that will work.



And make sure the necked down titty is cut off of the fuel pump hanger so you don't lose flow and generate too much head pressure.
'87 GN - 4.2L SFI Turbocharged innercooled V6 - Chrome valve covers - supra pump - 14" K&N - 52mm throttlebody - rocker shaft supports -  1/2 intake spacer - TB coolant bypass - 3" ATR exhaust tip - Alum intake pipe - NOS timing cover - chip - relocated charcoal canister - CR42's - stock

Offline wmsonta

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Re: Fuel pump
« Reply #11 on: June 15 2019, 10:52:34 PM »
thank you Earl, you have supplied the name I was looking for-

Offline earlbrown

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Re: Fuel pump
« Reply #12 on: June 16 2019, 02:16:38 AM »
Make sure you're sitting down when you see what that stuff costs.
'87 GN - 4.2L SFI Turbocharged innercooled V6 - Chrome valve covers - supra pump - 14" K&N - 52mm throttlebody - rocker shaft supports -  1/2 intake spacer - TB coolant bypass - 3" ATR exhaust tip - Alum intake pipe - NOS timing cover - chip - relocated charcoal canister - CR42's - stock

Offline Tim Hensley

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Re: Fuel pump
« Reply #13 on: June 16 2019, 02:21:10 AM »
Ractronix pump fixed my problem.car went 11.5 two weeks ago ,with TT default tuneup
Arizona GN109 forged rotating assembly
DLS 210-210
Champion irons
Extreme Auto stage II trans and converter

Offline wmsonta

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Re: Fuel pump
« Reply #14 on: June 16 2019, 12:22:11 PM »
car went 11.5 two weeks ago ,
That is stout for a Regal size car. Mine is about 500' in a quarter slower than that.
This (your) thread was inactive for a month, I hope you don't mind.