Recent Posts

1

General Auto Tech / Re: New to me Truck 2005 GMC Sierra

« Last post by Steve Wood on April 22 2024, 01:26:40 PM »

The world never ceases to amaze me.  Takes all kinds, I guess

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General Auto Tech / Re: New to me Truck 2005 GMC Sierra

« Last post by nocooler on April 22 2024, 10:23:52 AM »

Buying the truck was an adventure. I put a battery in it and it lit right off, we let it run for 30 seconds and moved it out into the driveway to look at it better. I kept smelling fuel but thought it was just running rich, as it's sat for a while. About a minute into it idling my brother told me to kill it. Nylon fuel line not routed properly, spraying fuel onto the drivers exhaust manifold. 
Needless to say we stood back and informed the owner that he might want to get fire extinguisher.
It turned out to be an non issue but he had paid a shop $300 to fix this fuel line and it could have cost him his garage/house/truck/life
Quick negotiation and we loaded it up.
I have repaired the fuel line so I can run the truck and test stuff before I disassemble.
This video shows the nice repair job: https://youtu.be/_ryb_pqMqTc

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General Auto Tech / Re: New to me Truck 2005 GMC Sierra

« Last post by nocooler on April 22 2024, 10:11:05 AM »

Lots has happened around here.
Yesterday I sold the 04 Silverado 1500 Reg Cab short box - got what I paid for it 2 years ago.
Picked up another 05 GMC sierra 1500 crew cab short box - cheap. Drove it on the trailer. Frame is cracked. It's an SLT with leather, and is pretty damn clean. Going to horde some parts, sell some, and scrap the rest.

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General Buick Tech / Re: Fuel tank and pump, electrolysis on tank? New pump?

« Last post by Scoobum on April 21 2024, 12:21:33 PM »

255 with 80's took me well into 6's in the 1/8th with race gas. The 340 might need a larger return line. Some get away without it. Guys on the other board are saying some of the E85 they get is lower. It's a crapshoot. If you're gonna run E85 I'm fairly certain you need bigger lines...and possibly a 450 pump. Cruz and other vendors sell the larger lines. Racetronix is here in Canada in Scarborough. Expect the shipping to be a little slower getting to you.

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General Buick Tech / Re: Fuel tank and pump, electrolysis on tank? New pump?

« Last post by Steve Wood on April 18 2024, 07:58:39 PM »

Takes about twice the size of pump than the usual 10% ethanol.  E 85 is very corrosive as well.

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General Buick Tech / Re: Fuel tank and pump, electrolysis on tank? New pump?

« Last post by slojim on April 18 2024, 04:36:59 PM »

Thanks.  That place is on the north end, a pretty long haul for me, and considering I can get a new tank for $200 give or take, not the choice I'm making today.  I called around me, no one seems to be interested in cleaning.  That is ok, I'm excited to try hydrolysis and all I'm trying to do is get it started before I make bigger decisions. 
Yep, I've got a pump from full throttle and from racetronix pulled up.  I note the racetronix ones say they are e85 friendly, while the tpi/walbro ones do not.  Seems likely they would be, but they call it out on their bigger models

I'll take some pictures.  Finding tsp took 3 stops

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General Buick Tech / Re: Fuel tank and pump, electrolysis on tank? New pump?

« Last post by Steve Wood on April 18 2024, 03:39:47 PM »

https://fullthrottlespeed.com/collections/fuel-pumps-and-accessories/products/1986-87-turbo-buick-v6-3-8l-hp-255lph-fuel-pump-installation-kit

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General Buick Tech / Re: Fuel tank and pump, electrolysis on tank? New pump?

« Last post by Steve Wood on April 18 2024, 09:18:01 AM »

There are some companies that specialize in cleaning out fuel tanks.  I believe they use something to line them with after getting them clean to prevent the rust from reappearing.  I know there is one near Houston.

I am with Ed, nothing special required with the pump.  I would check with Cotton or Mike Licht.

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General Buick Tech / Re: Fuel tank and pump, electrolysis on tank? New pump?

« Last post by ULYCYC on April 18 2024, 06:39:37 AM »

Electrolysis works ok for very mild surface rust. But after if not treated it will rust even more and faster.
Used to use a product called Kreem coat on motorcycle tanks. Its a 3 part system that lines the tank and works great. Not sure how cost effective it is on a 18 gal tank since it's costs about $40 to treat a 5gal tank.  New Buick tanks are around  $125.
The Walbro pumps you mentioned are all about the same rating. Only difference it the inlet how the sock sets up. All are good for around 500hp. Not sure what the new flavors are these days since Walbro are old school but work great.

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General Buick Tech / Fuel tank and pump, electrolysis on tank? New pump?

« Last post by slojim on April 17 2024, 09:56:23 PM »

Haven't started the gn in too long.  I tried this week, but I didn't get any fuel.  My tank has a little rust inside, not too bad.  It's the original tank with the plastic baffle.  I'm thinking of trying electrolysis inside the tank while I have it out.  Anybody ever try that?
I need a new fuel pump.  The old one was a walbro gss242, 190lph.  They seem to be obsolete, I can upsize to a gss340gen3 or a racetronix 255lph.  I have an fpr and a hot wire kit long installed. I've never touched the return line and I didn't think the 255lph size needs that.  The sender is ok and I don't plan to replace anything extra until I know the car starts.  Am I missing anything?