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[GMCnet] Trying to fix a GM fresh water tank at the sending unit. [message #343746]

Tue, 28 May 2019 11:36

BobDunahugh

Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA

Karma: 11

Senior Member

I'm helping a guy with his GMC that has the GM interior. The tank in the 73 that I just sold is identical. And it's been repaired by a PO. Both have crack lines coming out from the screws. So what's been a good repair method? Bob Dunahugh 78 Royale.
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Re: [GMCnet] Trying to fix a GM fresh water tank at the sending unit. [message #343747 is a reply to message #343746]

Tue, 28 May 2019 11:50

sgltrac

Messages: 2797
Registered: April 2011

Karma: 1

Senior Member

If the material is fatigued to cracking at the penetration I would
carefully drill new holes for new senders and patch the old holes with a
material compatible with the tank material.

Sully
Bellevue wa.

On Tue, May 28, 2019 at 9:37 AM Bob Dunahugh via Gmclist <
gmclist@list.gmcnet.org> wrote:

> I'm helping a guy with his GMC that has the GM interior. The tank in the
> 73 that I just sold is identical. And it's been repaired by a PO. Both have
> crack lines coming out from the screws. So what's been a good repair
> method? Bob Dunahugh 78 Royale.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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Sully 77 Royale basket case. Future motorhome land speed record holder(bucket list) Seattle, Wa.

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Re: [GMCnet] Trying to fix a GM fresh water tank at the sending unit. [message #343792 is a reply to message #343746]

Wed, 29 May 2019 13:01

Michael Leipold

Messages: 318
Registered: April 2011
Location: Greensboro NC

Karma: 2

Senior Member

My 73 had similar cracks, along with a few others, I repaired it about 7 years ago.
It held up until last year and I have not pulled it to see if there are new cracks or if the repaired ones need to be fixed again.

I bought a new tank over the winter but have not found the motivation to remove the permanent bed and install it.
I did not buy the GMC specific tank, but one that was about the same dimensions.

Since I do not boondock, I wish I had gone with a smaller tank, so I could have more room for storage.

I believe I used "Flex-Tex: Flex-Set Underwater Epoxy"

1973 GMC 26' Glacier - Unknown Mileage - Has a new switch pitch transmission with Powerdrive Smile

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Re: [GMCnet] Trying to fix a GM fresh water tank at the sending unit. [message #343793 is a reply to message #343792]

Wed, 29 May 2019 13:50

timthenomad

Messages: 63
Registered: June 2015
Location: Austin, TX

Karma: 5

Member

I used a hot glue gun on the Coachman clear plastic tank. Held up great.

--tim

Tim Taylor
~~Austin TX~~
Philadelphia PA
76 Birchaven (SB)
76 Triumph TR6

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