Good rubber gas filler seal - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lutronjim · 05-21-2017, 07:52 PM

Friend bought gas filler donut from LMC. Said it cracked in less than 3 months. Also having same trouble with window seals. This was a 70 model.

Does anyone know where to buy good ones?
Thanks

slikside · 05-21-2017, 08:06 PM

When the seal on my gas cap was no longer effective, the cap would wobble around on the filler neck, and leak when the tank was full.

I made a gasket out of bicycle tube rubber, and used that to "tighten up" the fit. I know, sounds cheesy. But it works like a champ...still, and you can't see anything different from the outside. I'd definitely do it again the same way.

EDIT: I just realized your talking about the filler neck to cab gasket...sorry.

I bought mine from GMCPAULS, and it's holding up well...going on 7 months now.

towbar · 05-21-2017, 08:16 PM

I got one from Classic Heartbeat on ebay...its about 6 months old and still looks great. Lifetime guarantee??????....Yes, its more $$ but if it lasts then its worth the extra 10 bucks...not easy to replace without pulling the seat and tank so I was hopeful while I had it apart. Maybe someone else has some experience with this one??

BTW, it seals great, but tight to install even with the tank removed.

**70cst** · 05-21-2017, 08:55 PM

Classic Heartbeat are the ones you want ...

Made in the USA

http://www.classicheartbeat.com/cata...%20Grommet.htm

**special-K** · 05-22-2017, 07:28 AM

Wes at Classic Heartbeat developed these as a better alternative to the known to be junk that was already being offered. He puts out parts to be god enough for his own trucks. He is one of us.

davepl · 05-22-2017, 01:17 PM

This is probably not helpful, but on my 1970, I couldn't find a seal I was happy with. So I turned mine upside down and then cleaned it up with "tire shine" goo.

Turns out all the sun and age damage was on the topside, and the bottom side was like new.

That won't help you if it's torn or missing, but if it's just about cosmetics, worked for me!

lutronjim · 05-23-2017, 07:09 PM

Thanks for comebacks

Z10 · 05-24-2017, 06:30 PM

I'm on my third seal from Heatbeat. It's been on the truck about a year and doing fine. With regard to the wobbly cap, I purchased a cheap second gas cap, removed the rubber seal and added it to my good cap. In other words I'm using to gaskets/seals in one cap. The added thickness did the trick.

05-21-2017, 07:52 PM	#1
lutronjim Registered User Join Date: Dec 2013 Location: Dunwoody,Ga Posts: 443	Good rubber gas filler seal Friend bought gas filler donut from LMC. Said it cracked in less than 3 months. Also having same trouble with window seals. This was a 70 model. Does anyone know where to buy good ones? Thanks

05-21-2017, 08:06 PM	#2
slikside Registered User Join Date: Jun 2010 Location: San Diego Co. Posts: 1,193	Re: Good rubber gas filler seal When the seal on my gas cap was no longer effective, the cap would wobble around on the filler neck, and leak when the tank was full. I made a gasket out of bicycle tube rubber, and used that to "tighten up" the fit. I know, sounds cheesy. But it works like a champ...still, and you can't see anything different from the outside. I'd definitely do it again the same way. EDIT: I just realized your talking about the filler neck to cab gasket...sorry. I bought mine from GMCPAULS, and it's holding up well...going on 7 months now. __________________ 1972 Chevy C-10, SWB, Fleet, 350/350, PS, PB, HEI, mostly stock, Survivor.

05-21-2017, 08:16 PM	#3
towbar Registered User Join Date: Jul 2012 Location: Marshall, NC....heart of the Appalachians.....aka, Gods country!! Posts: 537	Re: Good rubber gas filler seal I got one from Classic Heartbeat on ebay...its about 6 months old and still looks great. Lifetime guarantee??????....Yes, its more $$ but if it lasts then its worth the extra 10 bucks...not easy to replace without pulling the seat and tank so I was hopeful while I had it apart. Maybe someone else has some experience with this one?? BTW, it seals great, but tight to install even with the tank removed.

05-21-2017, 08:55 PM	#4
70cst Senior Member Join Date: Feb 2001 Location: New Madison, Ohio Posts: 21,377	Re: Good rubber gas filler seal Classic Heartbeat are the ones you want ... Made in the USA http://www.classicheartbeat.com/cata...%20Grommet.htm __________________ A husband can be right...or...A husband can be happy. 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder!

05-22-2017, 07:28 AM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Good rubber gas filler seal Wes at Classic Heartbeat developed these as a better alternative to the known to be junk that was already being offered. He puts out parts to be god enough for his own trucks. He is one of us. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

05-22-2017, 01:17 PM	#6
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,334	Re: Good rubber gas filler seal This is probably not helpful, but on my 1970, I couldn't find a seal I was happy with. So I turned mine upside down and then cleaned it up with "tire shine" goo. Turns out all the sun and age damage was on the topside, and the bottom side was like new. That won't help you if it's torn or missing, but if it's just about cosmetics, worked for me! Attached Images __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible

05-23-2017, 07:09 PM	#7
lutronjim Registered User Join Date: Dec 2013 Location: Dunwoody,Ga Posts: 443	Re: Good rubber gas filler seal Thanks for comebacks

05-24-2017, 06:30 PM	#8
Z10 Registered User Join Date: Aug 2012 Location: Midland, TX Posts: 1,267	Re: Good rubber gas filler seal I'm on my third seal from Heatbeat. It's been on the truck about a year and doing fine. With regard to the wobbly cap, I purchased a cheap second gas cap, removed the rubber seal and added it to my good cap. In other words I'm using to gaskets/seals in one cap. The added thickness did the trick. __________________ 1969 RS/SS Z10 Camaro Pace coupe 1972 GMC Short Step buildhttp://67-72chevytrucks.com/vboard/s...=1#post6356218 1979 Mazda RX7 1979 Pontiac Trans Am WS6 & 1979 Pontiac Trans Am 10th Anniversary 1999 Honda Valkyrie 2006 Corvette Z06 2010 BMW 650i



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