| socks in tank [message #284365] |
Sun, 09 August 2015 06:06  |
budworks521
Messages: 137
Registered: October 2013
Location: Grand Rapids MI 1974 Pain...
Karma: 4
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Senior Member |
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How hard or long does it take to check the socks in the fuel tank? If those socks get plugged with debris I imagine my engine would be starving for gas and would make it stall out huh?
1974 Painted Desert
455 upper half rebuild
constant project inexperienced mechanic
Grand Rapids Mi
Always trying to learn
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| Re: socks in tank [message #284367 is a reply to message #284365] |
Sun, 09 August 2015 06:35  |
Rick Williams
Messages: 256
Registered: July 2004
Karma: 0
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Lawrence
If you do not know the status of your fuel tanks and fuel lines, then you should drop the tanks and inspect them. At that time, you can check the socks and at a minimum replace the fuel lines. Some owners have cut holes in the floor(there are diagrams available)to allow access to the top of the tanks. But you should really drop the tanks and change the fuel lines. It is not a particularly hard job but is made easier if the coach is lifted or over a pit. More than likely if your engine is starving for fuel, it would be a filter and not the socks. But again, if you do not know the status of the tanks and fuel lines, you really need to drop the tanks. I'm sure others will chime in with tips on dropping the tanks.
Rick
Rick Williams
Bliss, Michigan
1978 Eleganza II
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| Re: socks in tank [message #284369 is a reply to message #284367] |
Sun, 09 August 2015 06:45 |
Joe Weir
Messages: 769
Registered: February 2013
Location: Columbia, SC
Karma: 7
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Second the tank thing. Cracked hoses can suck in air.
As Rick mentioned, It is a relatively simple job if you have a pit or can invest in a set of 2x8 homemade rear tire ramps, and of course the harbor freight $8 straps.
76 Birchaven - "Wicked Mistress" - New engine, trans, alum radiator, brakes, Sully airbags, fuel lines, seats, adult beverage center... those Coachmen guys were really thinking about us second hand owners by including that beverage center...
Columbia, SC.
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| Re: socks in tank [message #284371 is a reply to message #284365] |
Sun, 09 August 2015 07:40 |
budworks521
Messages: 137
Registered: October 2013
Location: Grand Rapids MI 1974 Pain...
Karma: 4
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Cinnabar replaced all the fuel lines in 2006. Yes 9 years is a long time but my inspection of the lines proved still good. My filters are new have one in line and one in carb. Carb has been overhauled numerous times as well.
1974 Painted Desert
455 upper half rebuild
constant project inexperienced mechanic
Grand Rapids Mi
Always trying to learn
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| Re: socks in tank [message #284401 is a reply to message #284365] |
Sun, 09 August 2015 13:02 |
budworks521
Messages: 137
Registered: October 2013
Location: Grand Rapids MI 1974 Pain...
Karma: 4
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Senior Member |
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Yes, matter of fact the entire fuel system was overhauled. at 129k and now I have 135k 6k miles in 9 years and i might have put on 1k in 3 years since all I do is try to fix things wrong with the coach.
1974 Painted Desert
455 upper half rebuild
constant project inexperienced mechanic
Grand Rapids Mi
Always trying to learn
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| Re: [GMCnet] socks in tank [message #284434 is a reply to message #284401] |
Sun, 09 August 2015 19:54 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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It is not miles when it comes to hose degradation but years and I would bet that your hoses are a R6 and earlier rated hose. I would suggest that they are hard and maybe brittle. You need today at a minimum a SAE 30 R7 low pressure or SAE 30 R9 high pressure hose, I personally use the R9 hose on everything. Both these hoses are barrier hoses rated for ethanol service in gas 10%. There is also a SAE 30 R14 that can be use on E-85 and other ethanol blends.
http://images.oreillyauto.com/parts/img/documents/gat/gatesbarricade4page.pdf
JR Wright
GMC Great Laker MHC
GMC Eastern States
GMCGL Tech Editor
GMCMHI
78 GMC Buskirk 30’ Stretch
1975 GMC Avion (Under Reconstruction)
Michigan
> On Aug 9, 2015, at 2:02 PM, Lawrence Harrison wrote:
>
> Yes, matter of fact the entire fuel system was overhauled. at 129k and now I have 135k 6k miles in 9 years and i might have put on 1k in 3 years
> since all I do is try to fix things wrong with the coach.
> --
> 1974 Painted Desert
> 455 upper half rebuild
> constant project inexperienced mechanic
> Grand Rapids Mi
> Always trying to learn
>
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: socks in tank [message #284439 is a reply to message #284365] |
Sun, 09 August 2015 20:57 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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budworks521 wrote on Sun, 09 August 2015 04:06How hard or long does it take to check the socks in the fuel tank? If those socks get plugged with debris I imagine my engine would be starving for gas and would make it stall out huh?
You can blow the socks out (or off) with compressed air. I'm not sure how effective this will be if the socks are really corroded. Make sure your gas cap has been removed, and crawl under the left side (after supporting the coach safely) Disconnect the hoses from the selector valve, one at a time, and blow compressed air through the line into the tank. As mentioned above, this may blow the sock off or blow a hole in it, so make sure you have an in line filter in the line somewhere downstream.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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