The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 11-23-2019, 11:23 PM   #1
farmall
Registered User
 
farmall's Avatar
 
Join Date: Jun 2011
Location: Central OR
Posts: 733
Charcoal Canister Delete Questions

My 81 K30 454 had no canister in it when I bought it. Holley, Edelbrock, Headers, and an in and out mechanical pump all ready on it. I did not pay any attention to the smog delete until today while bleeding the Hydroboost after installing a new steering gear box.

I have gasoline draining out the drivers side front axle tube at the yoke. So I followed the front diff breather hose up to the front cross member and over to the drivers side, to what I believe is the hard line from the tank to the former charcoal canister.

It got dark and cold so I came in to do some research.There are 2 hard lines next to the steering box that have a rubber hose connecting them in a loop. I need to figure out what they are for. I have always had problems with the pass side tank overflowing even though I never use it. My hose routing must be really messed up.

The questions are... What do you all do with the breather line from the tank to the former canister? Cap it or let it vent somewhere? Why in the world would my diff be filling from a wrongly connected vent line with fuel flowing in it. One would think the vent line would be connected high up in the system to not be in contact with liquid. As I said my routing must be really messed up.

Thanks for any help and I hope you got a good laugh out of this.
__________________
1955 GMC 250 8 Flatbed
1971 C30 157" 350 4spd 10' Flatbed
81 GMC K30 CnC 9' Flatbed 454 T400
89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958
71 LT1 Convertible, 72 Coupe
69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2
farmall is offline   Reply With Quote
 

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:33 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com