Don't Forget To Replace Your Fuel Filter(s) - The 1947 - Present Chevrolet & GMC Truck Message Board Network

clapage6 · 10-09-2013, 02:59 PM

So I actually replaced this whenI got my 83 CC drw a few months back but decided to break into it cause bored.... Truck actually ran fine just slightly low fuel pressure...wonder why.

To p/o's knowledge this fuel filter has not been replaced since roughly 2005.

shkj2004 · 10-09-2013, 03:54 PM

Thanx man.

cory d · 10-09-2013, 05:57 PM

almost enough cinnamon to make an apple pie

INSIDIOUS '86 · 10-09-2013, 07:27 PM

Quote:

Originally Posted by cory d

almost enough cinnamon to make an apple pie

I hear its a great way to spice up your engines hp

superwade57 · 10-09-2013, 08:44 PM

Looks like ground corn lol...darn ethanol lol

Billy81 · 10-09-2013, 08:52 PM

Quote:

Originally Posted by superwade57

Looks like ground corn lol...darn ethanol lol

I was thinking the same thing, Corn bread anyone?

bigwheel15 · 10-10-2013, 02:04 AM

Looks like that thing weighed a pound and a half.

Gotenntitans · 10-10-2013, 07:38 AM

Actually bought a new one yesterday for my '87 GMC. GTT

motornut · 10-10-2013, 09:37 AM

surprised it started lol

Remon. · 10-10-2013, 09:43 AM

Wow

I'm going to check mine soon. Thanks for posting

clapage6 · 10-10-2013, 11:41 AM

hahaha love the comments.... Yeah after seeing this I pulled the carb apart when I bought it also... Still only surprise is how well she ran like this.....

INSIDIOUS '86 · 10-10-2013, 01:18 PM

You gas station use dirt as an octane booster? I can only imagine how the engine feels with this stuff beating on the rings

Rich84 · 10-10-2013, 01:24 PM

Maybe a dumb question...But WTF is that stuff?? Is that what happens when ethynol absorbs water?

INSIDIOUS '86 · 10-10-2013, 01:28 PM

Quote:

Originally Posted by Rich84

Maybe a dumb question...But WTF is that stuff?? Is that what happens when ethynol absorbs water?

And starts rusting the tank some. I'm sure it's fine rust. May be from the gas stations fill tanks too

clapage6 · 10-10-2013, 01:50 PM

Quote:

Originally Posted by INSIDIOUS '86

And starts rusting the tank some. I'm sure it's fine rust. May be from the gas stations fill tanks too

Surprisingly enough I dropped both tanks and both were clean as a whistle, the sending units were the one's rusted out... The truck is originally a 6.2 diesel so idk if the tanks were coated inside or what but not an ounce of rust that I could see inside either tank.

I'm sure most of that crud is very old gas and fine rust most of which came from the sending units I'd have to assume. The truck hadn't been driven in years so any fuel left in there would have just dried up into fine sediment

Skunksmash · 10-10-2013, 11:45 PM

So what is that stuff exactly? I'd like to know exactly what its called.

donut · 10-11-2013, 04:27 AM

Rust?

clapage6 · 10-11-2013, 11:43 AM

Most of it is OLD dried up fuel. I'm no chemist so I can't say if it's something specific in our fuels that is breaking down or getting left after evaporation or what have you, but I have left a small amount of fuel in an old spun aluminum buggy tank out back for YEARS..... and the result was the same type of sediment left in the bottom of that tank.

Most of that is the aftermath of leaving small amounts of gas in the tanks and letting it sit long enough to dry up and the more orange color is probably from some rust in my sending units as both were pretty rusty inside and out.

10-09-2013, 02:59 PM	#1
clapage6 Registered User Join Date: Aug 2013 Location: San Diego Posts: 111	Don't Forget To Replace Your Fuel Filter(s) So I actually replaced this whenI got my 83 CC drw a few months back but decided to break into it cause bored.... Truck actually ran fine just slightly low fuel pressure...wonder why. To p/o's knowledge this fuel filter has not been replaced since roughly 2005.

10-09-2013, 03:54 PM	#2
shkj2004 Registered User Join Date: Jan 2013 Location: unknown Posts: 117	Re: Don't Forget To Replace Your Fuel Filter(s) Thanx man.

10-09-2013, 05:57 PM	#3
cory d Registered User Join Date: Dec 2011 Location: Arlington WA Posts: 1,728	Re: Don't Forget To Replace Your Fuel Filter(s) almost enough cinnamon to make an apple pie __________________ GMC C15 355 SM465 3.73 80 C10 cruiser build thread 79 short stepside crew cab. big and ugly. build thread

10-09-2013, 08:44 PM	#5
superwade57 Registered User Join Date: Jul 2010 Location: Janesville, WI Posts: 664	Re: Don't Forget To Replace Your Fuel Filter(s) Looks like ground corn lol...darn ethanol lol

10-10-2013, 02:04 AM	#7
bigwheel15 Registered User Join Date: Feb 2010 Location: Fort Worth, TX Posts: 727	Re: Don't Forget To Replace Your Fuel Filter(s) Looks like that thing weighed a pound and a half.

10-10-2013, 07:38 AM	#8
Gotenntitans Registered User Join Date: Aug 2013 Location: Camden, Arkansas Posts: 978	Re: Don't Forget To Replace Your Fuel Filter(s) Actually bought a new one yesterday for my '87 GMC. GTT __________________ GoTennTitans 1987 GMC Sierra 1990 GMC Sierra (stolen) 2003 Chevy Silverado

10-10-2013, 09:37 AM	#9
motornut 78K & 79C Jimmys Join Date: Nov 2009 Location: Ottawa Ont CANADA Posts: 7,901	Re: Don't Forget To Replace Your Fuel Filter(s) surprised it started lol __________________ John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350

10-10-2013, 09:43 AM	#10
Remon. Registered User Join Date: Mar 2013 Location: Netherlands Posts: 116	Re: Don't Forget To Replace Your Fuel Filter(s) Wow I'm going to check mine soon. Thanks for posting

10-10-2013, 11:41 AM	#11
clapage6 Registered User Join Date: Aug 2013 Location: San Diego Posts: 111	Re: Don't Forget To Replace Your Fuel Filter(s) hahaha love the comments.... Yeah after seeing this I pulled the carb apart when I bought it also... Still only surprise is how well she ran like this.....

10-10-2013, 01:18 PM	#12
INSIDIOUS '86 Registered User Join Date: Jul 2009 Location: washington Posts: 4,178	Re: Don't Forget To Replace Your Fuel Filter(s) You gas station use dirt as an octane booster? I can only imagine how the engine feels with this stuff beating on the rings __________________ 377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac 3''spintech prostreet mufflers xpipe 1 3/4 headers build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217 Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511

10-10-2013, 01:24 PM	#13
Rich84 Registered User Join Date: Mar 2012 Location: Woodbury, Ct. Posts: 1,680	Re: Don't Forget To Replace Your Fuel Filter(s) Maybe a dumb question...But WTF is that stuff?? Is that what happens when ethynol absorbs water?

10-10-2013, 11:45 PM	#16
Skunksmash Registered User Join Date: Sep 2012 Location: TX Posts: 1,014	Re: Don't Forget To Replace Your Fuel Filter(s) So what is that stuff exactly? I'd like to know exactly what its called.

10-11-2013, 04:27 AM	#17
donut Registered User Join Date: Aug 2009 Location: S.C. Posts: 1,593	Re: Don't Forget To Replace Your Fuel Filter(s) Rust? __________________ '86 C-30 dually, 454/tbh400 '73 K-20 350/350/205 (sold ) I'm kinda like duct tape- no real purpose, but handy to have around.

10-11-2013, 11:43 AM	#18
clapage6 Registered User Join Date: Aug 2013 Location: San Diego Posts: 111	Re: Don't Forget To Replace Your Fuel Filter(s) Most of it is OLD dried up fuel. I'm no chemist so I can't say if it's something specific in our fuels that is breaking down or getting left after evaporation or what have you, but I have left a small amount of fuel in an old spun aluminum buggy tank out back for YEARS..... and the result was the same type of sediment left in the bottom of that tank. Most of that is the aftermath of leaving small amounts of gas in the tanks and letting it sit long enough to dry up and the more orange color is probably from some rust in my sending units as both were pretty rusty inside and out.



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