Help with Gas Filler Neck - The 1947 - Present Chevrolet & GMC Truck Message Board Network

blink32 · 12-23-2003, 11:29 PM

Been reading the site for a while and now I've got a worthy question.

I've started to replace the aged and cracked rubber gas filler necks. I got new necks, struggled with getting the stock neck off the passenger side tank and now I'm stuck (this is on a 76 dual tanked K10 by the way)

My problem, I can't get the new neck on. Its a 1 3/8" rubber hose with a 90 deg elbow, and I checked the stock one I removed and it was also a 1 3/8". But the Metal gas filler lead that it connects to is about 1 1/2" or so. But there's an additional hump or lip that makes it like 1 5/8" or something. I've tried everything I can think of, heat the hose with a heat gun and try to jam it over, lube the neck and hose with grease, freeze the neck and boil the hose. But its just not working. The best I've managed to accomplish is to get the tube wrapped over the initial start of the metal pipe before the lip. But I can never get it past that. Is there some other trick or tool that I can use to stretch this hose or am I just not trying hard enough with the current methods? I really need to fix these. Thanks for any help.

bigblock73 · 12-24-2003, 01:16 AM

Did you try white lithium grease? I had a similar problem when I installed a Borla exhaust kit on a vehicle...couldn't get the dam rubber mounts to slide over the steel hangers on the exhaust. Sprayed the metal and they slid right in.

BTW - welcome to the board.

**old Rusty C10** · 12-24-2003, 01:31 AM

boiling has always worked for me maybe try to stretch em a little with a tailpipe expander?

blink32 · 12-24-2003, 08:58 AM

I did try lithium grease. Its just wayyy too tight. Slightly over-engineered in my opinion but hey, GM made sure it would never come off. And thanks for the welcome.

I'll definitely try the tail pipe expander, maybe boil it, stretch it and let it cool and see if it will hold some of the stretch then re-boil it and see if I can get it on there. What a pain this is turning out to be but thanks for your help.

Nvbowtie · 12-25-2003, 07:56 AM

The one I got from chevy duty had different sizes at each end.

I think you may have the wrong hose.

I think there were 2 or 3 different styles for 73-78 era

blink32 · 12-25-2003, 10:41 AM

Quote:

Originally posted by Nvbowtie
The one I got from chevy duty had different sizes at each end.

What is Chevy Duty? If I can find that out I'll contact them and see if they have a different hose for me.

Nvbowtie · 12-26-2003, 01:21 AM

Quote:

Originally posted by blink32
What is Chevy Duty? If I can find that out I'll contact them and see if they have a different hose for me.

http://www.chevyduty.com

blink32 · 12-29-2003, 09:16 AM

Thanks, I'll check with them

12-23-2003, 11:29 PM	#1
blink32 Registered User Join Date: Dec 2003 Location: OTR Posts: 338	Help with Gas Filler Neck Been reading the site for a while and now I've got a worthy question. I've started to replace the aged and cracked rubber gas filler necks. I got new necks, struggled with getting the stock neck off the passenger side tank and now I'm stuck (this is on a 76 dual tanked K10 by the way) My problem, I can't get the new neck on. Its a 1 3/8" rubber hose with a 90 deg elbow, and I checked the stock one I removed and it was also a 1 3/8". But the Metal gas filler lead that it connects to is about 1 1/2" or so. But there's an additional hump or lip that makes it like 1 5/8" or something. I've tried everything I can think of, heat the hose with a heat gun and try to jam it over, lube the neck and hose with grease, freeze the neck and boil the hose. But its just not working. The best I've managed to accomplish is to get the tube wrapped over the initial start of the metal pipe before the lip. But I can never get it past that. Is there some other trick or tool that I can use to stretch this hose or am I just not trying hard enough with the current methods? I really need to fix these. Thanks for any help.

12-24-2003, 01:16 AM	#2
bigblock73 yeller Join Date: Oct 2001 Location: Twin Cities Posts: 13,824	Did you try white lithium grease? I had a similar problem when I installed a Borla exhaust kit on a vehicle...couldn't get the dam rubber mounts to slide over the steel hangers on the exhaust. Sprayed the metal and they slid right in. BTW - welcome to the board. __________________ Jeff 73-87.com 73-87.com Facebook page 73-87 cab corner 6x9 speaker brackets for sale 67-72 cab corner speaker brackets for sale 47-54 cab corner speaker brackets for sale

12-24-2003, 01:31 AM	#3
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,313	boiling has always worked for me maybe try to stretch em a little with a tailpipe expander? __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

12-25-2003, 07:56 AM	#5
Nvbowtie Registered User Join Date: Jul 2001 Location: Laughlin, Nv. USA Posts: 700	The one I got from chevy duty had different sizes at each end. I think you may have the wrong hose. I think there were 2 or 3 different styles for 73-78 era __________________ www.unlimited2u.com/chevy Bill 1980 Chevy C-10 Silverado 1988 Chevy Blazer Tahoe

12-24-2003, 08:58 AM	#4
blink32 Registered User Join Date: Dec 2003 Location: OTR Posts: 338	I did try lithium grease. Its just wayyy too tight. Slightly over-engineered in my opinion but hey, GM made sure it would never come off. And thanks for the welcome. I'll definitely try the tail pipe expander, maybe boil it, stretch it and let it cool and see if it will hold some of the stretch then re-boil it and see if I can get it on there. What a pain this is turning out to be but thanks for your help.

12-29-2003, 09:16 AM	#8
blink32 Registered User Join Date: Dec 2003 Location: OTR Posts: 338	Thanks, I'll check with them



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