Home » Public Forums » GMCnet » [GMCnet] Getting road ready - Replacing the old rubber
| [GMCnet] Getting road ready - Replacing the old rubber [message #338508] |
Thu, 08 November 2018 11:41  |
william weyrowski
Messages: 8
Registered: October 2018
Karma: 0
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Junior Member |
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Looking to replace some old rubber in my 2 month old baby.
First, I am going through the gas lines and replacing everything. I found
some severe soft spots so I figured that should be the very next thing on
my list. I have ordered a couple of rolls of 1/4 and 3/8 hose so in the
next week or so I will start laying things out. My plan is to add an
electric pump in line, consisting of running the lines from the tanks, to
in line filters, then to the fuel selector switch and then to an electric
pump, then to the front.
As for the fuel tank sending unit, is there an actual need to replace this,
or will a little clean up and new filter sack suffice. My understanding is
that no one ever gets a true reading anyways, so its not a big concern of
mine.
Next, I would like to replace all of the rubber bushings in the front.
Does anybody have part numbers for these..or is there a convenient kit that
someone has put together to help tackle the entire front end?
Any advice is greatly welcomed.
--
William D. Weyrowski
Midland, MI and Surfside, FL
73 - 26' Sequoia
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| Re: [GMCnet] Getting road ready - Replacing the old rubber [message #338509 is a reply to message #338508] |
Thu, 08 November 2018 11:55  |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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William,
Do you know approximatly how many feet of the 3 size hoses to get.
Call me and I'll give you the info, along with the front end.
I'l save you time.
On Thu, Nov 8, 2018 at 9:42 AM william weyrowski
wrote:
> Looking to replace some old rubber in my 2 month old baby.
>
> First, I am going through the gas lines and replacing everything. I found
> some severe soft spots so I figured that should be the very next thing on
> my list. I have ordered a couple of rolls of 1/4 and 3/8 hose so in the
> next week or so I will start laying things out. My plan is to add an
> electric pump in line, consisting of running the lines from the tanks, to
> in line filters, then to the fuel selector switch and then to an electric
> pump, then to the front.
>
> As for the fuel tank sending unit, is there an actual need to replace this,
> or will a little clean up and new filter sack suffice. My understanding is
> that no one ever gets a true reading anyways, so its not a big concern of
> mine.
>
> Next, I would like to replace all of the rubber bushings in the front.
> Does anybody have part numbers for these..or is there a convenient kit that
> someone has put together to help tackle the entire front end?
>
> Any advice is greatly welcomed.
>
> --
> William D. Weyrowski
> Midland, MI and Surfside, FL
> 73 - 26' Sequoia
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Getting road ready - Replacing the old rubber [message #338510 is a reply to message #338508] |
Thu, 08 November 2018 12:05 |
Bierman
Messages: 46
Registered: May 2017
Location: SW Florida
Karma: 0
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Member |
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Contact Alex Ferrara, one of the Gurus of the front end, he has done 100's at different rally...I've found Rick auto to be the cheapest for Toronado parts. PM me and I can give you the part numbers from rock auto on all the front end bushings.
Member, GMCI, Sunshine Statesman and Dixielanders
26' 1978 Eleganza II, new(rebuilt by Sirum) 403, Lenzi hubs and knuckles, front end by Ferrara
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| Re: [GMCnet] Getting road ready - Replacing the old rubber [message #338523 is a reply to message #338508] |
Thu, 08 November 2018 16:20 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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William,
You're wise to replace those old rubber lines. Personally, I'd replace as
much of them as possible with metal lines. Just as important: Unless the
tank selector valve is new, I'd replace it with TWO electric pumps, one for
each tank. That gives you tank, filter, and pump redundancy while
eliminating that potentially troublesome valve (they can stick in one
position or, worse, between positions, admitting air). The cost vs
replacing the valve should be insignificant.
JWID,
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI & EBL,
Manny Brakes & 1-Ton, Troy-Bilt APU, etc., etc., etc.
www.gmcwipersetc.com
On Thu, Nov 8, 2018 at 12:42 PM william weyrowski
wrote:
> Looking to replace some old rubber in my 2 month old baby.
>
> First, I am going through the gas lines and replacing everything. I found
> some severe soft spots so I figured that should be the very next thing on
> my list. I have ordered a couple of rolls of 1/4 and 3/8 hose so in the
> next week or so I will start laying things out. My plan is to add an
> electric pump in line, consisting of running the lines from the tanks, to
> in line filters, then to the fuel selector switch and then to an electric
> pump, then to the front.
>
> As for the fuel tank sending unit, is there an actual need to replace this,
> or will a little clean up and new filter sack suffice. My understanding is
> that no one ever gets a true reading anyways, so its not a big concern of
> mine.
>
> Next, I would like to replace all of the rubber bushings in the front.
> Does anybody have part numbers for these..or is there a convenient kit that
> someone has put together to help tackle the entire front end?
>
> Any advice is greatly welcomed.
>
> --
> William D. Weyrowski
> Midland, MI and Surfside, FL
> 73 - 26' Sequoia
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
_______________________________________________
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Getting road ready - Replacing the old rubber [message #338529 is a reply to message #338523] |
Thu, 08 November 2018 18:14 |
powwerjon
Messages: 849
Registered: March 2013
Karma: -2
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Senior Member |
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William,
Make sure that you use an SAE 30R9 fuel hose in all rubber fuel line replacement. IF you use an SAE 30R7 hose you will be replacing it again in 5 years or less. It will get hard and brittle with todays ethanol laced fuels. The R9 hose is a barrier type hose with a inner liner that is pretty much impervious to Ethanol laced fuels.
I use Gates Barricade hose and it is available in 1/4”, 5/16”, 3/8” and 1/2”.
https://www.oreillyauto.com/detail/b/barricade-3759/belts-hoses-16454/hoses-25069/crankcase-breather-hose-14015/df8b1723839a/gates-barricade-5-16-inch -hose/27314/4349938?q=27314&pos=0
https://www.oreillyauto.com/detail/b/barricade-3759/belts-hoses-16454/hoses-25069/bulk-hose-16664/bulk-hose---fuel-hose-18164/0a74c36f4425/gates-barri cade-3-8-inch-hose/27315/4349939?q=27315&pos=0
https://www.oreillyauto.com/detail/b/barricade-3759/belts-hoses-16454/hoses-25069/bulk-hose-16664/bulk-hose---fuel-hose-18164/0a74c36f4425/gates-barri cade-1-2-inch-hose/27316/4349940?q=27316&pos=0
I get mine from Oreilly’s because they stock it. The newer manufactured hoses have a black color liner. The Goodyear hoses originally came with a blue colored liner. Just be sure to ask for the SAE 30R9 hose.
Gates also does make a SAE R10 Submersible hose as well and it is very expensive as you only really need it to replace any hose that you might have inside the fuel tank if you have in tank pumps.
https://www.oreillyauto.com/detail/b/gates-3728/belts-hoses-16454/hoses-25069/bulk-hose-16664/bulk-hose---fuel-hose-18164/0a74c36f4425/gates-3-8-inch- hose/27097/4330538?q=27097&pos=0
My first choice would be the Gates hose and the Goodyear SAE 30R9 hose would also be a good. The SAE 30R9 hose is rated for fuel injection and higher pressure, but it is NOT the pressure that I am using this hose for but rather the durability of the hose.
Get a roll of 3/8” hose, 10’ of 1/4” and 20’ of 5/16” hose.
Be sure to replace all your hose clamps with SS clamps, go new throw the old stuff away. I get mine from Lowes in the plumbing dept.
https://www.lowes.com/pd/AMERICAN-VALVE-1-4-in-to-5-8-in-Dia-Stainless-steel-Adjustable-clamp/1000341875
The price listed is for a bag of 10 and they are all SS construction, a lot of the auto parts store clamps are NOT all SS and they cost much more.
I replaced all my lines on top of the tanks with metal lines, I used steel brake lines. I use the barrier hose to connect the lines to the tanks and also replace rubber fuel line down the frame rails with 3/8 brake lines and put those on the outside of the frame rails.
http://www.gmcmhphotos.com/photos/g6928-fuel-tank-system-rebuild.html
Again this are my SUGGESTIONS, you can do what you want!
Regards,
JR Wright
GMC Great Laker MHC
GMC Eastern States Charter Member
GMCGL Tech Editor
GMCMI
78 GMC Buskirk 30’ Stretch
1975 GMC Avion (Under Reconstruction)
Michigan
> On Nov 8, 2018, at 5:20 PM, Ken Henderson wrote:
>
> William,
>
> You're wise to replace those old rubber lines. Personally, I'd replace as
> much of them as possible with metal lines. Just as important: Unless the
> tank selector valve is new, I'd replace it with TWO electric pumps, one for
> each tank. That gives you tank, filter, and pump redundancy while
> eliminating that potentially troublesome valve (they can stick in one
> position or, worse, between positions, admitting air). The cost vs
> replacing the valve should be insignificant.
>
> JWID,
>
> Ken H.
> Americus, GA
> '76 X-Birchaven w/Cad500/Howell EFI & EBL,
> Manny Brakes & 1-Ton, Troy-Bilt APU, etc., etc., etc.
> www.gmcwipersetc.com
>
>
> On Thu, Nov 8, 2018 at 12:42 PM william weyrowski
> wrote:
>
>> Looking to replace some old rubber in my 2 month old baby.
>>
>> First, I am going through the gas lines and replacing everything. I found
>> some severe soft spots so I figured that should be the very next thing on
>> my list. I have ordered a couple of rolls of 1/4 and 3/8 hose so in the
>> next week or so I will start laying things out. My plan is to add an
>> electric pump in line, consisting of running the lines from the tanks, to
>> in line filters, then to the fuel selector switch and then to an electric
>> pump, then to the front.
>>
>> As for the fuel tank sending unit, is there an actual need to replace this,
>> or will a little clean up and new filter sack suffice. My understanding is
>> that no one ever gets a true reading anyways, so its not a big concern of
>> mine.
>>
>> Next, I would like to replace all of the rubber bushings in the front.
>> Does anybody have part numbers for these..or is there a convenient kit that
>> someone has put together to help tackle the entire front end?
>>
>> Any advice is greatly welcomed.
>>
>> --
>> William D. Weyrowski
>> Midland, MI and Surfside, FL
>> 73 - 26' Sequoia
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Unsubscribe or Change List Options:
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| Re: [GMCnet] Getting road ready - Replacing the old rubber [message #338558 is a reply to message #338531] |
Fri, 09 November 2018 09:13 |
powwerjon
Messages: 849
Registered: March 2013
Karma: -2
|
Senior Member |
|
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William,
Matt is correct that the SAE J30-R14 hose is the one that you could use for a low pressure carburetor system and I did not point that out. I used the R9 hose because I do have a high pressure MPFI unit on the coach and I only needed a small piece for the high pressure portion. I bought it because I got a really, really good deal on the hose (same price as the R14 hose) and they did not have any of the R14 hose instore and I needed it that day and I also regularly get a good discount too. Both hoses have the similar construction only the pressure rating is different. The R14 is less expensive than the R9 hose. Also please note that the hose part numbers in first email are for the R14 hoses and I am sorry that I did not point that out too. If you actually need to use the higher pressure R9 hose then the part numbers are as follows. The 3/8” hose is probably the only one that would be necessary to use for a higher pressure system. All other sizes would most likely be low or atmospheric pressures and you could use the R14 hose. Again a warning here, “NO RUBBER HOSE ON TOP OF THE ENGINE!”
1/4” part# 27339
5/16” part# 27340
3/8” part# 27341
Regards,
J.R. Wright
GMC Great Laker MHC
GMCGL Tech Editor
GMC Eastern States Charter Member
GMCMI
78 GMC Buskirk 30’ Stretch
75 GMC Avion (Under Reconstruction)
Michigan
> On Nov 8, 2018, at 8:28 PM, Matt Colie wrote:
>
> William,
>
> While John is correct, SAE J30-R9 is for fuel injection pressures. It is rated 100psi working and 500 burst.
> SAE J30-R14 is the one for carburetor. It is rated for 25psi working pressure and 125 burst.
>
> Matt
> --
> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
> Electronically Controlled Quiet Engine Cooling Fan
> OE Rear Drum Brakes with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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| Re: [GMCnet] Getting road ready - Replacing the old rubber [message #338560 is a reply to message #338508] |
Fri, 09 November 2018 09:45 |
william weyrowski
Messages: 8
Registered: October 2018
Karma: 0
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Junior Member |
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Thanks Ken. I have thought about the two e-pump system and may eventually
go that route. For now, I already have the valve and will see how it
goes.
Thanks John. Great info and thanks for the links. When I was up there last
weekend, I tried Oreilly but they only had a total of 6ft of the Gates
left...so I have ordered a roll of 3/8 and 1/4. In doing a quick search on
mine, it looked like it was all 3/8 and not 5/16. I haven't actually taken
it off yet, so I could be wrong...not that I will be able to read the old
stuff anyways. Are those brake lines 3/8?
Will
Message: 9
Date: Thu, 8 Nov 2018 19:14:07 -0500
From: John Wright
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Getting road ready - Replacing the old rubber
Message-ID:
Content-Type: text/plain; charset=utf-8
William,
Make sure that you use an SAE 30R9 fuel hose in all rubber fuel line
replacement. IF you use an SAE 30R7 hose you will be replacing it again in
5 years or less. It will get hard and brittle with todays ethanol laced
fuels. The R9 hose is a barrier type hose with a inner liner that is
pretty much impervious to Ethanol laced fuels.
I use Gates Barricade hose and it is available in 1/4?, 5/16?, 3/8? and
1/2?.
<
https://www.oreillyauto.com/detail/b/barricade-3759/belts-hoses-16454/hoses-25069/bulk-hose-16664/bulk-hose---fuel-hose-18164/0a74c36f4425/gates-barri cade-1-4-inch-hose/27313/4349937?q=27313&pos=0
>
https://www.oreillyauto.com/detail/b/barricade-3759/belts-hoses-16454/hoses-25069/crankcase-breather-hose-14015/df8b1723839a/gates-barricade-5-16-inch -hose/27314/4349938?q=27314&pos=0
https://www.oreillyauto.com/detail/b/barricade-3759/belts-hoses-16454/hoses-25069/bulk-hose-16664/bulk-hose---fuel-hose-18164/0a74c36f4425/gates-barri cade-3-8-inch-hose/27315/4349939?q=27315&pos=0
https://www.oreillyauto.com/detail/b/barricade-3759/belts-hoses-16454/hoses-25069/bulk-hose-16664/bulk-hose---fuel-hose-18164/0a74c36f4425/gates-barri cade-1-2-inch-hose/27316/4349940?q=27316&pos=0
I get mine from Oreilly?s because they stock it. The newer manufactured
hoses have a black color liner. The Goodyear hoses originally came with a
blue colored liner. Just be sure to ask for the SAE 30R9 hose.
Gates also does make a SAE R10 Submersible hose as well and it is very
expensive as you only really need it to replace any hose that you might
have inside the fuel tank if you have in tank pumps.
https://www.oreillyauto.com/detail/b/gates-3728/belts-hoses-16454/hoses-25069/bulk-hose-16664/bulk-hose---fuel-hose-18164/0a74c36f4425/gates-3-8-inch- hose/27097/4330538?q=27097&pos=0
My first choice would be the Gates hose and the Goodyear SAE 30R9 hose
would also be a good. The SAE 30R9 hose is rated for fuel injection and
higher pressure, but it is NOT the pressure that I am using this hose for
but rather the durability of the hose.
Get a roll of 3/8? hose, 10? of 1/4? and 20? of 5/16? hose.
Be sure to replace all your hose clamps with SS clamps, go new throw the
old stuff away. I get mine from Lowes in the plumbing dept.
https://www.lowes.com/pd/AMERICAN-VALVE-1-4-in-to-5-8-in-Dia-Stainless-steel-Adjustable-clamp/1000341875
The price listed is for a bag of 10 and they are all SS construction, a lot
of the auto parts store clamps are NOT all SS and they cost much more.
I replaced all my lines on top of the tanks with metal lines, I used steel
brake lines. I use the barrier hose to connect the lines to the tanks and
also replace rubber fuel line down the frame rails with 3/8 brake lines and
put those on the outside of the frame rails.
http://www.gmcmhphotos.com/photos/g6928-fuel-tank-system-rebuild.html
Again this are my SUGGESTIONS, you can do what you want!
Regards,
JR Wright
GMC Great Laker MHC
GMC Eastern States Charter Member
GMCGL Tech Editor
GMCMI
78 GMC Buskirk 30? Stretch
1975 GMC Avion (Under Reconstruction)
Michigan
> On Nov 8, 2018, at 5:20 PM, Ken Henderson wrote:
>
> William,
>
> You're wise to replace those old rubber lines. Personally, I'd replace as
> much of them as possible with metal lines. Just as important: Unless the
> tank selector valve is new, I'd replace it with TWO electric pumps, one
for
> each tank. That gives you tank, filter, and pump redundancy while
> eliminating that potentially troublesome valve (they can stick in one
> position or, worse, between positions, admitting air). The cost vs
> replacing the valve should be insignificant.
>
> JWID,
>
> Ken H.
> Americus, GA
> '76 X-Birchaven w/Cad500/Howell EFI & EBL,
> Manny Brakes & 1-Ton, Troy-Bilt APU, etc., etc., etc.
> www.gmcwipersetc.com
>
>
[color=blue]> On Thu, Nov 8, 2018 at 12:42 PM william weyrowski
> wrote:
>
>> Looking to replace some old rubber in my 2 month old baby.
>>
>> First, I am going through the gas lines and replacing everything. I
found
>> some severe soft spots so I figured that should be the very next thing on
>> my list. I have ordered a couple of rolls of 1/4 and 3/8 hose so in the
>> next week or so I will start laying things out. My plan is to add an
>> electric pump in line, consisting of running the lines from the tanks, to
>> in line filters, then to the fuel selector switch and then to an electric
>> pump, then to the front.
>>
>> As for the fuel tank sending unit, is there an actual need to replace
this,
>> or will a little clean up and new filter sack suffice. My understanding
is
>> that no one ever gets a true reading anyways, so its not a big concern of
>> mine.
>>
>> Next, I would like to replace all of the rubber bushings in the front.
>> Does anybody have part numbers for these..or is there a convenient kit
that
>> someone has put together to help tackle the entire front end?
>>
>> Any advice is greatly welcomed.
>>
>> --
>> William D. Weyrowski
>> Midland, MI and Surfside, FL
>> 73 - 26' Sequoia
_______________________________________________
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