Coffee can
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Freshman User
Joined: Feb 2007
Posts: 32
Likes: 0
Coffee can
Hey guys i've got a question. What exactly does the coffee can on the driver side inner fender do. I think it is to help w/ vaccum.
The reason I'm asking is that I am rebuilding the motor. While it is out I hope to clean up the engine bay a little and possibly get rid of the can. I just don't want to mess anything important up.
Any help would be appreciated.
The reason I'm asking is that I am rebuilding the motor. While it is out I hope to clean up the engine bay a little and possibly get rid of the can. I just don't want to mess anything important up.
Any help would be appreciated.
Laughing Gas
Joined: Jan 2003
Posts: 1,019
Likes: 2
From: Georgetown, Ky
My 75 didnt have one but my 73 did.. I'm thinking that the models with things like Air Conditioning ... required the use of the canister, since those HVAC systems were vac. controlled.
Could be used in Disc brake setups as well... 73 has disc, 75 has Drums all around..
Its my logic working again..wrong or right who knows?
Could be used in Disc brake setups as well... 73 has disc, 75 has Drums all around..
Its my logic working again..wrong or right who knows?
New User
Joined: Jan 2008
Posts: 0
Likes: 24
The so-called "coffee can" which is actually a "juice can" is to have an extra amount of available vacuum when a demand on it is required.
ie: A/C vacuum control system, Brake Booster,Cruise control.
If the specific systems only ran on engine vacuum there would be problems with them.
Ford also put a round cannister about 4" in diameter on vehicles...you will see them on cars.
ie: A/C vacuum control system, Brake Booster,Cruise control.
If the specific systems only ran on engine vacuum there would be problems with them.
Ford also put a round cannister about 4" in diameter on vehicles...you will see them on cars.
Postmaster
Joined: Sep 2004
Posts: 3,166
Likes: 2
From: wi
that can makes a good overflow for the radiater allso i moved it up next to the rad on drivers side and drilled a hole in the top and put the overflow line in it
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Senior User
Joined: Mar 2007
Posts: 458
Likes: 1
My 78 has a coffee can on the passenger side up front right next to the battery. The truck never had a/c or cruise control, I might route the overflow tube to it but my overflow tube goes the other way.........
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New User
Joined: Jan 2008
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Likes: 24
Yes they came on NON AC NON-Cruise control either.
It is just EXtra vacuum supply and is better than not having it.
If one wished to get rid of it from open view. it can be mounted between the inner render and wheel well plastic liner up front.
It is just EXtra vacuum supply and is better than not having it.
If one wished to get rid of it from open view. it can be mounted between the inner render and wheel well plastic liner up front.
Senior User
Joined: Apr 2007
Posts: 167
Likes: 0
From: Topeka, Kansas
Most powerbrake boosters have a vacuum check valve to store vacuum. when you accelerate (mash the pedal) you lose manifold vacuum momentarly. Mainly the vac resivior keeps all of the ventilation partitions or forced air diverters from changing positions while accelerating.So if you decide to keep it, DO NOt let the vac advance tubing get plumbed into the canister vacuum.
Lead Driver
Joined: Apr 2007
Posts: 5,958
Likes: 105
From: Houston
The coffee canister is used for the climate control system. When you accelerate its there so when vacuum drops down your vacuum control motors that uses vacuum to open and closes the heat/ac/hot/cold/vent/blend doors in the penlum will stay in the setting it is and not close under acceleration. Also they werent for cruise control. Cruise control had its own system atleast mine has its own built in vacuum resivor.
Hotshot
Joined: Dec 2003
Posts: 18,423
Likes: 9
From: iowa
If you want to have it look cleaner, Dennis mentioned the round ones used on cars and later pickups these are easy to find and can easily be mounted in place of the "coffee can" or you can buy aftermarket nice polished or brushed alum vac canisters from places like Jegs.
Elder User
Joined: Nov 2005
Posts: 597
Likes: 0
From: San Antonio, TX
Originally Posted by ihateminimumwage
My truck didn't have one when I got it.
As far as I've read, it helps with vacuum boost to the brakes, to give them more power at low RPM.
As far as I've read, it helps with vacuum boost to the brakes, to give them more power at low RPM.
From what I've been told it also helps with the breaks if your engine dies while you're on the road.