Emissions Question

[Joseph Herman]

Hello everyone. My son and I are working on a 1978 K10. Through the course of its like the vapor canisters have had the vacuum nipple damaged and the canisters need to be replaced. It is a duel canister setup. I have tried to search the part numbers to no avail. Part number 17056582 does not give me any viable results. The other part number, 17060868BC, comes back to a Corvette? Any help on tracking down replacements would be great. Thank you.

 

[hoagster]

Maybe this will help. Removed from my 73 k10. If you can't find a replacement PM me your address I'll send this one to you! I no long require smog. Hopefully this is the part you are looking for, if not post a picture!

And Welcome to the forum!

You must be registered for see images attach

You must be registered for see images attach

You must be registered for see images attach

 

[Craig 85]

There's a few of the 17060868 on eBay. From reading the chart below, 17060868, is your primary tank and 17056582 is the aux tank. I used to have a '79 with the same set up. I don't recall which tank is primary. Maybe someone else can chime in.

The second link shows replacements for 17056582.

https://www.ebay.com/itm/1970-1980-...720804&hash=item3da3c4d446:g:egQAAOSwn3deySxE

https://www.yoyopart.com/oem/14086387/gm-17056582.html

You must be registered for see images attach

 

[hoagster]

Your local parts store should have them also, below is from rockauto for $68, so you could probably get it from summit racing tomorrow for the same or lower price.

You must be registered for see images attach

 

[austinado16]

In a pinch, you can also purchase either brass or plastic "barbed" nipples from your local hardware store (not a big box store like home deep hole), and then drill out where your broken fitting was located, to a size that will fit your new fitting. Epoxy it in there with 2 part plastic epoxy, and 10min later, you're good to go.

Welcome to the forums.

 

[Joseph Herman]

Thanks guys. Great information!

 

[75gmck25]

Was it all still connected when you got the truck? Reason I ask is that the purge system varied from year to year. My ‘75 has a dedicated port on the Quadrajet, and no other purge valve, but in some years there were external valves, or a valve built into the canister. You want it to vent periodically to remove vapor, but not vent all the time.

Bruce

 

[Vbb199]

I Have a 87 smog truck.

All the engine equipment has been removed and sold to a gentleman in Colorado.
BUT, the canisters are still there.

If you want them, send a pm, because it's highly likely I'll lose track of this thread and won't ever find it again. Lol

 

[AuroraGirl]

Hello everyone. My son and I are working on a 1978 K10. Through the course of its like the vapor canisters have had the vacuum nipple damaged and the canisters need to be replaced. It is a duel canister setup. I have tried to search the part numbers to no avail. Part number 17056582 does not give me any viable results. The other part number, 17060868BC, comes back to a Corvette? Any help on tracking down replacements would be great. Thank you.

if i still had/if i could find, i likely have one from a 78 k10 somewhere. unfortunately, it likely got tossed because its emissions and my gpa yeeted that stuff outa here.

can any canister work?

 

[pduffyd]

Yeah I just bought one for my 75 C20.
Hope this helps.

You must be registered for see images attach

 

[Dan27]

Hello everyone. My son and I are working on a 1978 K10. Through the course of its like the vapor canisters have had the vacuum nipple damaged and the canisters need to be replaced. It is a duel canister setup. I have tried to search the part numbers to no avail. Part number 17056582 does not give me any viable results. The other part number, 17060868BC, comes back to a Corvette? Any help on tracking down replacements would be great. Thank you.

 

[Dan27]

NOS GM #17056582 Emission Fuel Vapor Canister. eBay item number:325779613867. Aug 18, 2023