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Username Post: bad gas        (Topic#332934)
0utlaw 
Very Senior Member
Posts: 2789
0utlaw
Loc: US East Coast
Reg: 09-10-02
02-20-16 05:42 PM - Post#2610267    
    In response to J REID

On my old truck, I run 2 filters inline...one before the electric pump and one before the carb.




 

0utlaw 
Very Senior Member
Posts: 2789
0utlaw
Loc: US East Coast
Reg: 09-10-02
02-20-16 05:48 PM - Post#2610272    
    In response to Mike_Coyle

I suggest carefully filling your float bowl with fresh gas and see how it runs.




 
J REID 
Member
Posts: 693
J REID
Loc: SW Minnesota
Reg: 04-09-04
02-21-16 07:09 AM - Post#2610347    
    In response to 0utlaw

That's how I did it on my 40 only because of the problems I was having with 57.
I expect that it will run ok when I am done, main reason for rebuild was gas "disappearing" after sitting a few days. I am expecting that it will still disappear. Have a good day all

57 210 4dr, 57 2dr ht project, 67 Chevelle SS project, 40 Chev coup project


 
4dr 57 
Valued Contributor
Posts: 4523
4dr 57
Loc: Texas Hill Country
Reg: 11-10-04
02-21-16 08:05 AM - Post#2610359    
    In response to J REID

Another often overlooked soure of contaminates are the underground tanks, Yes there are inline filters on the pumps but when the fuel is dumped into the tanks doesn't it seem likely that the finer sediments would get roiled up in process?
Thursday is the stations fillup day at our local grocery store gas stop so I try to get there earlier in the week, or wait a few days until the junk has settled.
Also, having preused catalogs looking at fuel filters 10 microns is about as small as they make the filters. Many, many filters are only 40 microns. Quite a few are even bigger at 100 microns! The GM metal canister filter I mentioned earlier is a 5 micron filter. Check it out for yourself. Oh, they come with either a 5/16" or 3/8" hose bib on the ends. regards.

Stan

It's all good. mostly




Edited by 4dr 57 on 02-21-16 08:08 AM. Reason for edit: added info

 
J REID 
Member
Posts: 693
J REID
Loc: SW Minnesota
Reg: 04-09-04
02-21-16 12:00 PM - Post#2610406    
    In response to 4dr 57

Thanks Stan, really learning a lot about this subject now. Never really looked at microns before because never had problems. Not positive that is the cause of my problems now either. Where did you get this GM filter & is that the actual description? Thanks again

57 210 4dr, 57 2dr ht project, 67 Chevelle SS project, 40 Chev coup project


 
4dr 57 
Valued Contributor
Posts: 4523
4dr 57
Loc: Texas Hill Country
Reg: 11-10-04
02-21-16 06:41 PM - Post#2610514    
    In response to J REID

http://www.summitracing.com/parts/sum-g1512/overv i...

at the bottom of the page is the filtering info.

The local parts store has them too in 3/8' & 5/16"
Not sure if they are 5 micron or not, but lawnmowers need a good filter....

Stan

It's all good. mostly




 
J REID 
Member
Posts: 693
J REID
Loc: SW Minnesota
Reg: 04-09-04
02-22-16 01:08 PM - Post#2610705    
    In response to 4dr 57

Thanks Stan, have yet to check down town. Haven't seen anything under 40 yet in Danchuk

57 210 4dr, 57 2dr ht project, 67 Chevelle SS project, 40 Chev coup project


 
2blu52 
"17th Year" Silver Supporting Member
Posts: 18482
2blu52
Age: 85
Loc: Montana
Reg: 03-12-02
02-22-16 04:25 PM - Post#2610750    
    In response to Mike_Coyle

  • Mike_Coyle Said:
Thanks Rick,
I think the problem has been coming on slowly. Car restored in 2012. Has only 150 miles since restored. Won 1st. place in trailer restored class in 2012 at Smokey Mountain Classic Chevy Show.


Phase seperation is most likely the problem. In 2013 I used my car quite a bit up to the 1st of june, heart attack shut me down till August, car ran fined and was parked with Stabil in the tank. 2014 car ran pretty good but heart attack #2 shut me down again. March 2015 put some fresh gasoline in the tank and did the St Paddy day parade. Car was not running real good then, about Mid april it ran terrible. Worked with it and finally drained all the gasoline out of it. At the same time took the carb in for cleaning, refilled with fresh gas, did not think about the carb as the cleaning job was done by a well known shop. Car wouldnot run at all when i put the carb on, I had a spare and placed it on the car and it ran well. Carb guy really messed up. Short story it should have been okay with the fresh gas. Spent a lot of time on the car under the assumption that it was not the carb. Google fuel phase seperation to find out what was going on. This is not my normal hunting ground but the title of the post caught my eye.

"PEACE IS THAT GLORIUS MOMENT IN HISTORY WHEN EVERY ONE STANDS AROUND RELOADING"

THOMAS JEFFERSON


 
LtFrankDrebin 
Super Senior Member
Posts: 5226
LtFrankDrebin
Loc: Coopersburg, PA
Reg: 01-25-01
02-23-16 06:47 AM - Post#2610880    
    In response to J REID

I'm not positive on how fuel gets into the pump well. I don't think the pump comes up to the slot; I think fuel comes in on top of the pump. There seems to be enough play between the seal and the solid part of the pump to let fuel pass through on the upstroke.

'56 210 Townsman wagon 6cyl/3spd OD | '58 Impala Sierra Gold 348


 
J REID 
Member
Posts: 693
J REID
Loc: SW Minnesota
Reg: 04-09-04
02-23-16 08:33 AM - Post#2610893    
    In response to LtFrankDrebin

Well, it doesn't get in thru the slot - I just measured -- magic

57 210 4dr, 57 2dr ht project, 67 Chevelle SS project, 40 Chev coup project


 
LtFrankDrebin 
Super Senior Member
Posts: 5226
LtFrankDrebin
Loc: Coopersburg, PA
Reg: 01-25-01
02-24-16 06:48 AM - Post#2611140    
    In response to J REID

Check your float level and/or verify that your carb doesn't have the drilled intake passage in the casting.

'56 210 Townsman wagon 6cyl/3spd OD | '58 Impala Sierra Gold 348


 
J REID 
Member
Posts: 693
J REID
Loc: SW Minnesota
Reg: 04-09-04
02-24-16 09:52 AM - Post#2611175    
    In response to LtFrankDrebin

Had to readjust the float level with the new needle. Tried the old pump & wouldn't work. New pump did so maybe that was part of my original problem. Kind of disappointed in parts nowdays as it was only about 4 years old. It does get gas & it does work so I'm not going to loose any sleep over it. I have a 10 micron filter ordered for the glass bowl & when it comes just have to make sure it seals properly to keep the "stuff" out. Have a good one

57 210 4dr, 57 2dr ht project, 67 Chevelle SS project, 40 Chev coup project


 
vtwinpilot 
Forum Newbie
Posts: 50

Reg: 11-12-09
11-21-17 12:18 PM - Post#2715211    
    In response to Mike_Coyle

I just threw out this question in other forum's. I had a Shovelhead I have owned for 30 years...never tasted ethanol. One summer it did not run much as it was due for tire's. I found the tank full of rusty film and the carb gummed up. Guy I know just restored a 69 classic while the motor was being rebuilt he replaced the tank and fuel lines, motor was ready 2 years later, no ethanol added. Tank was full of the same filth. I have an Impala with a new tank put in same time frame, no issue yet, but I am concerned about additive's or issue's with the Non-ethanol fuel. Most know how bad the corn syrup is, and I have never seen issue's like this with the straight gas. I was not sure if it was just my area or not. Or oxy additives like Milwaukee used to screw up fuel systems. I found a Brigg's and Stratton add for a fuel additive advertising something about removing "dissolved metals in non-ethanol gas" may not be exact wording but close. So when I threw out the question of other folk's having issues I am hearing about it showing up in Canada and the lower 48. Waxy rust type film. Maybe it is phase separation or it could be some new crap added or quality drop in the fuel many of us use because we do not fall for the corn syrup scam. Other than a few station's with old tanks over the years (which we knew to avoid) I have never seen such problems. Guy with the 69 thought he should have used some coating on the new tank. I do not see why a person should have to worry about that unless it's going to sit for years. I had a caprice in storage that I only fired up twice a year for 5 years, when I got it out it cruised away without a sputter.




 
Gene_Schneider 
Ultra Senior Member
Posts: 12139
Gene_Schneider
Loc: Wisconsin..USA
Reg: 09-27-02
11-22-17 02:20 PM - Post#2715356    
    In response to vtwinpilot

I live in the Milwaukee Wisconsin area and have used 10% ethanol gas for the last 25 years and have never had a problem.

ChevGene 1934 Master sedan 1939 Master DeLuxe Town Sedan 1950 Styline DeLuxe Power Glide 1957 Nomad 283 PG 1963 Corvair Convertible


 
vtwinpilot 
Forum Newbie
Posts: 50

Reg: 11-12-09
11-26-17 11:08 AM - Post#2715790    
    In response to Gene_Schneider

I should have put this on the main forum. My mistake. The milwaukee issue I mentioned was the MTBE additive that messed up fuel system's some years back. Not a big deal for dialing a carb in to run alky as long as it's stable. I will never use it if I have the choice, do not like it's inefficiency or it's degrading of seal's.



Edited by vtwinpilot on 11-26-17 11:12 AM. Reason for edit: No reason given.

 

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