Tube running to carb
06-06-2009, 05:02 PM
#1
Member
Thread Starter
iTrader: (2)
Join Date: Oct 2002
Location: Toms River, NJ
Posts: 195
Likes: 0
Received 0 Likes
on
0 Posts
Car: '89 Camaro Rs/ '87 Z28
Engine: 305 c.i. TBI/ 305 c.i. 4bbl
Transmission: 700r4/T5
Axle/Gears: 3.73 posi/ 3.73 posi
Tube running to carb
I recently bought an 87 z28 305 T5 Carbed. What is the tube that runs from under the air cleaner to the passenger side fender? After the car is turned off sometimes it will blow air through it up to the carb. Whats the purpose of this? Emission related garbage like all the other garbage under the hood? 
I hate all the clutter haha.
I hate all the clutter haha. 
06-07-2009, 12:47 AM
#2
Moderator
iTrader: (14)
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 43,169
Likes: 0
Received 35 Likes
on
34 Posts
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
It's to help prevent boiling of the fuel in the carb bowl when the engine is shut off hot. With the high under-hood temperatures of our cars, it's a pretty good thing to have.
06-29-2009, 10:50 PM
#4
Member
Thread Starter
iTrader: (2)
Join Date: Oct 2002
Location: Toms River, NJ
Posts: 195
Likes: 0
Received 0 Likes
on
0 Posts
Car: '89 Camaro Rs/ '87 Z28
Engine: 305 c.i. TBI/ 305 c.i. 4bbl
Transmission: 700r4/T5
Axle/Gears: 3.73 posi/ 3.73 posi
Re: Tube running to carb
One last question about it. Occasionally it will seem to run forever unless I turn the IGN to acc and then to off a couple times. that will eventually shut it off. Does it usually run for a long time. Im just worried if it would drain the battery
06-30-2009, 03:25 PM
#5
Moderator
iTrader: (14)
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 43,169
Likes: 0
Received 35 Likes
on
34 Posts
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
It runs until the coolant temperature gets below the switch preset point. On mine, the switch is in the heater hose coming off the water pump. Since coolant isn't circulating except by cooling effect (cooler water more dense, goes down, etc.), it can take awhile for the temp to drop, especially if you shut it off hot (the radiator fan doesn't come on until 238 degrees F).
FWIW, mine never ran the battery down.
FWIW, mine never ran the battery down.
07-02-2009, 05:08 PM
#6
Member
Thread Starter
iTrader: (2)
Join Date: Oct 2002
Location: Toms River, NJ
Posts: 195
Likes: 0
Received 0 Likes
on
0 Posts
Car: '89 Camaro Rs/ '87 Z28
Engine: 305 c.i. TBI/ 305 c.i. 4bbl
Transmission: 700r4/T5
Axle/Gears: 3.73 posi/ 3.73 posi
Re: Tube running to carb
ok thanks for the info! Gives me a little peace of mind haha
Trending Topics
07-02-2009, 05:54 PM
#8
Re: Tube running to carb
https://www.thirdgen.org/forums/hist...lower-kit.html
Yea the above thread has a picture of the blower unit you are talking about. It's pretty cool.
Yea the above thread has a picture of the blower unit you are talking about. It's pretty cool.
Thread
Thread Starter
Forum
Replies
Last Post
theshackle
Tech / General Engine
4
03-05-2017 06:37 PM
86IROC112
Engine/Drivetrain/Suspension Parts for Sale
4
08-17-2015 02:00 PM
Street Lethal
Engine/Drivetrain/Suspension Parts for Sale
3
08-13-2015 08:28 PM
