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Fuel tank mounting bolts [message #217352]

Thu, 08 August 2013 09:24

Sean

Messages: 189
Registered: March 2012

Karma: 0

Senior Member

So, I was looking at my fuel setup yesterday, glanced aft, and noticed my tank mounting bolts. I'm pretty sure the shop that cleaned my tanks last year is trying to kill me:

http://www.gmcmhphotos.com/photos/member-galleries/p50283-img-20130807-131654.html

Does anyone know where I can get the correct mounting bolts?

--
Sean
1973 260 Painted Desert
Luna County, NM

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Re: Fuel tank mounting bolts [message #217353 is a reply to message #217352]

Thu, 08 August 2013 09:27

WD0AFQ

Messages: 7111
Registered: November 2004
Location: Dexter, Mo.

Karma: 207

Senior Member

You are kidding me!! I hope they are not as long as they look. Wound never get out of my driveway. Take one out, measure , and head to town looking for 2.
Dan

3 In Stainless Exhaust Headers One Ton All Discs/Reaction Arm 355 FD/Quad Bag/Alum Radiator Manny Tran/New eng. Holley EFI/10 Tire Air Monitoring System Solarized Coach/Upgraded Windows Satelite TV/On Demand Hot Water/3Way Refer

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Re: [GMCnet] Fuel tank mounting bolts [message #217358 is a reply to message #217352]

Thu, 08 August 2013 10:17

powerjon

Messages: 2446
Registered: January 2004

Karma: 5

Senior Member

YIKES, the tank strap is not even tight! As Dan said, take a measurement and go to your favorite hardware or Big Box store and get 2 bolts 4 flat washers and 2 lock washers and 2 nuts. What does the other tank look like? You can measure those bolts if there shorter, if not double what you need.

JR Wright
78 Buskirk Stretch
75 Avion
Michigan

On Aug 8, 2013, at 10:24 AM, Sean <wsfulmer@gmail.com> wrote:

>
>
> So, I was looking at my fuel setup yesterday, glanced aft, and noticed my tank mounting bolts. I'm pretty sure the shop that cleaned my tanks last year is trying to kill me:
>
> http://www.gmcmhphotos.com/photos/member-galleries/p50283-img-20130807-131654.html
>
> Does anyone know where I can get the correct mounting bolts?
> --
> --
> Sean
> 1973 260 Painted Desert
> Luna County, NM
> Gallery: http://goo.gl/Gfcpd
> GMCMH Search Engine: http://goo.gl/xd8PK
> _______________________________________________
> GMCnet mailing list
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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: Fuel tank mounting bolts [message #217363 is a reply to message #217352]

Thu, 08 August 2013 10:53

wally

Messages: 643
Registered: August 2004
Location: Omaha Nebraska

Karma: 5

Senior Member

Sean wrote on Thu, 08 August 2013 09:24

Those look to be the right bolts but they are not hooked in the cross member holes. Parts manual page 12-2 shows these J-bolts as part number 48 in the illustration. I just had these out and back in with the tanks. I had help getting them back in. What we did was hook the j-bolts in first while loose in the tank straps, position the straps above the cross member flange then tilt the front of the tanks up until we could get the front bolts in. I don't know if the j-bolts will go in the strap holes and the cross member holes with out taking the front mounting bolts out so the tank will move for clearance. Good news is you don't need to buy any bolts just reinstall yours in the correct place.
HTH

Wally Anderson
Omaha NE
75 Glenbrook

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Re: Fuel tank mounting bolts [message #217365 is a reply to message #217363]

Thu, 08 August 2013 10:58

WD0AFQ

Messages: 7111
Registered: November 2004
Location: Dexter, Mo.

Karma: 207

Senior Member

wally wrote on Thu, 08 August 2013 10:53

Sean wrote on Thu, 08 August 2013 09:24

Yep, what Wally said. I bet they knew but did not want to drop tank again to fix. I would not use this place to drop my tanks, I don't think.
Dan

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Re: [GMCnet] Fuel tank mounting bolts [message #217366 is a reply to message #217358]

Thu, 08 August 2013 11:03

sgltrac

Messages: 2797
Registered: April 2011

Karma: 1

Senior Member

Get-er-done! Wow, thats bad.

Those straps look different than the ones on my 77. The 77 has J hook threaded studs which hook high into the X member then pass through the straps. It almost looks like correct length bolts are not enough. ANYTHING will be better than what they left you with. Gather some grade 5 fasteners with nyloc nuts.

Sully 77 Royale basket case. Future motorhome land speed record holder(bucket list) Seattle, Wa.

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Re: Fuel tank mounting bolts [message #217431 is a reply to message #217352]

Thu, 08 August 2013 17:28

Matt Colie

Messages: 8547
Registered: March 2007
Location: S.E. Michigan

Karma: 7

Senior Member

Sean wrote on Thu, 08 August 2013 10:24

Sean,

As Wally said, it looks like you have the correct bolts.

They should be 3/8 J-hooks about 6 inches long. If they have been damaged, they are not difficult to make. All you need is some rod stock, a die, a BFH and a vise. I had to replace at least one of mine. They don't need a lot of hook.

I was also able to replace them with the tank hanging on the frame as yours is. You need to pick the tank up enough so you can roll the strap sideways to feed the hook in then push the hook up and into the hole in the crossmember.

There also should be washers between the nut and the tank strap.

Matt

Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

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Re: Fuel tank mounting bolts [message #217599 is a reply to message #217352]

Fri, 09 August 2013 20:08

wally

Messages: 643
Registered: August 2004
Location: Omaha Nebraska

Karma: 5

Senior Member

Sean wrote on Thu, 08 August 2013 09:24

Posted a pic of the jbolt.
http://www.gmcmhphotos.com/photos/power-level-valve-fitting/p50342-fuel-tank-j-bolt.html

Wally Anderson
Omaha NE
75 Glenbrook

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Re: Fuel tank mounting bolts [message #217662 is a reply to message #217599]

Sat, 10 August 2013 13:07

Carl S.

Messages: 4186
Registered: January 2009
Location: Tucson, AZ.

Karma: 13

Senior Member

Here's a pic with the tanks out and the bolts hanging in their mounting holes:

http://www.gmcmhphotos.com/photos/gas-tank-fuel-line-project-6-10/p34765-gas-tank-clean-up-fuel-line-replacement.html

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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