Just because the magnet didn't pick it up doesn't mean that it's not metallic. It just means that it's non ferrous.
Another Fram failure
- Thread starter benjamming
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I 2nd the fuel pump, mechanical or electric, they dont tend to like to run with no fuel going through them, looks like a shot diaphragm. Chevy 400 small block, man, those engines dont tend to be a long lasting small block with the short rods (bad rod to stroke ratio, they wore out the cylinder bores quicker then any other sb chevy) and goofy steam head cooling. They dried up here in ohio junkyards about 15 years ago, nice engine altough.
I can't tell what it is. Its very hard. Could be from a broken open sock filter in the tank on the pickup. Hard to tell. Just erks me that the Fram filter let so much of it by. I installed the small inlet filter along with a new inline filter.
The 400 that we built is a real killer. .030 over, Comp 286 roller cam, roller rockers, World Product heads, 9.6 compression, all balanced. Edelbrock intake, re-worked Qjet and headers. Runs good being as how its in a 4000 pound 4X4! LOL Would be much better in a Nova or Vega.
The 400 that we built is a real killer. .030 over, Comp 286 roller cam, roller rockers, World Product heads, 9.6 compression, all balanced. Edelbrock intake, re-worked Qjet and headers. Runs good being as how its in a 4000 pound 4X4! LOL Would be much better in a Nova or Vega.
My sons truck was giving him fits with the carb running over so we decided to check the carb and fuel pump. Its a very strong 400 Chevy with a Qjet carb. There is a Fram inline gas filter about 2" before the carb inlet. When we got the carb off and the top removed, I could not believe the crap that was sitting in the float bowl, and later on what was in the filter.
I rebuilt the carb about a year ago and installed the Fram filter too.
This first picture is what I flushed out of the float bowl of the carb and managed to capture in my hand when I poured out the mess. Remember, this is the stuff that made it THROUGH the Fram filter! Its not metal, checked with a magnet. Its almost like small slivers of plastic? Looks like metal shaving off a brake lathe, but not metal.
These next 2 pics are of the Fram filter. All this unknown stuff is what was on the INLET side of the filter. Really curious what it is, where it came from and why it made it through the filter and caused us such grief!
Mark
I rebuilt the carb about a year ago and installed the Fram filter too.
This first picture is what I flushed out of the float bowl of the carb and managed to capture in my hand when I poured out the mess. Remember, this is the stuff that made it THROUGH the Fram filter! Its not metal, checked with a magnet. Its almost like small slivers of plastic? Looks like metal shaving off a brake lathe, but not metal.
These next 2 pics are of the Fram filter. All this unknown stuff is what was on the INLET side of the filter. Really curious what it is, where it came from and why it made it through the filter and caused us such grief!
Mark
You could send the filter and what you've found to Fram for anlysis. They night be able to determine what it is. They probably won;'t warranty the filter as the stuff you found is not part of their manufacturing process. But at least with their lab you should be able to find out what it is.
Is it rubber or carbon like?
Or did someone dump some stuff in your sons fuel tank as a prank?
Is it rubber or carbon like?
Or did someone dump some stuff in your sons fuel tank as a prank?
looks like there is something plastic coming apart or degrading in the fuel system.Fuel pump is my guess.
Riflemen10x
Riflemen10x
As soon as I saw "Quadrajet" I thought of the little fuel filter in the fuel inlet on the carb. Those things would clog and then the relief spring behind them would open up and let all kinds of junk in the fuel bowl.
Never have seen an inline filter like the one in the original post let that much junk through. That is scary.
Never have seen an inline filter like the one in the original post let that much junk through. That is scary.
I dunno. There is no canister on the truck, its a '76. Just a fuel inlet and brake booster line. Oh well, guess we'll keep our eyes on the filter and may have to drop the tanks and clean them out if it happens again.
Still not happy on the amount of junk that went through the filter though. Hmmmm.
Mark
Still not happy on the amount of junk that went through the filter though. Hmmmm.
Mark
This was my first thought too.
You can siphon a few gallons of gas out of the tank to see if there is much debris/water in the tank before you go to the trouble of removing it. If the gas there looks ok then the pump itself is more likely contributing the debris itself. You can also install a plastic see-thru filter between the tank and the pump to see if any debris is getting to that point. That truck has a mechanical pump under the hood rather than in the tank.
As far as the debris being on the outlet/clean side of the filter...welcome to the "I found a defective filter" club. If you look close enough you'll probably find a rip in the paper, or a gap somewhere of where the filter element was sealed from the outlet/clean side, that allowed those crumbles/slivers to go around that element.
I'd be checking the rubber fuel lines for any old ones that may be crumbling inside.
A magnifying glass can be pretty handy here..
As far as the debris being on the outlet/clean side of the filter...welcome to the "I found a defective filter" club. If you look close enough you'll probably find a rip in the paper, or a gap somewhere of where the filter element was sealed from the outlet/clean side, that allowed those crumbles/slivers to go around that element.
I'd be checking the rubber fuel lines for any old ones that may be crumbling inside.
A magnifying glass can be pretty handy here..
tried to edit but tooo late!
"That truck has a mechanical pump under the hood rather than in the tank."
Not being a smart$%%&& here, just meant to say that it is relatively easy to check fuel quality before and after the pump in this situation...
old rubber hoses are always suspect as well
Looking forward to hearing the source..
"That truck has a mechanical pump under the hood rather than in the tank."
Not being a smart$%%&& here, just meant to say that it is relatively easy to check fuel quality before and after the pump in this situation...
old rubber hoses are always suspect as well
Looking forward to hearing the source..
Collapsed carbon canister??.. I had that happen on an 83 Shelby Charger once and that looks exactly like what was in my filter and carb.
I would be most suspecious of the fuel supply. You paid for it when you bought fuel somewhere. That's what fuel filters are for.
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