Vacuum Line pics...Rerouting Help needed
11-30-2008, 01:15 AM
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Car: 92RS 25th Anniv./88 IROC Z28 Vert
Engine: 305 TBI w/Tpi Air / 305 TPI
Transmission: 700r4/700r4
Axle/Gears: Posi
Vacuum Line pics...Rerouting Help needed
I am trying to redo my vacuum lines. Here are some pics of my engine. '84 305in an '86.
Please look at each pic and give me any info you can.
A lot of the lines have screws at the ends as plugs. Carb had to be rebuilt after engine install so vacs are a mess.
Thanks for the help
Please look at each pic and give me any info you can.
A lot of the lines have screws at the ends as plugs. Carb had to be rebuilt after engine install so vacs are a mess.
Thanks for the help
11-30-2008, 02:27 PM
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Car: 2003 SILVERADO /86 IROC/85 S10
Engine: 305 TPI
Transmission: 700R4
Re: Vacuum Line pics...Rerouting Help needed
THE CENTER ONE (T) SHOULD BE FOR YOUR PCV VALVE.
11-30-2008, 06:52 PM
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Car: 92RS 25th Anniv./88 IROC Z28 Vert
Engine: 305 TBI w/Tpi Air / 305 TPI
Transmission: 700r4/700r4
Axle/Gears: Posi
Re: Vacuum Line pics...Rerouting Help needed
All of the diagrams I have show the PCV running into L into that T fitting and they also show that T runs straight to the canister control valve (which I can't find. I think I have the L line to the PCV correct. Here is the diagram I am working with....
11-30-2008, 07:21 PM
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Car: 1984 RPO "Y84" Recaro T/A
Engine: HO 305ci L69
Transmission: T-5
Axle/Gears: WS6, J65, GT4: 3:73, G80: posi
Re: Vacuum Line pics...Rerouting Help needed
That canister is pretty easy to find. Take a trip to your local junkyard & look under the hood of any 80's Chevy V8 powered car, all the bits you are missing are in there... try to find an '86, '87, or '88 Monte, Caprice, El Camino, Grand Prix, Camaro, or Firebird. These later car's pieces will work properly with your version of the CCC computer system. The system changed a little each year, so make sure the diagram you use is from 1986.
11-30-2008, 08:06 PM
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Re: Vacuum Line pics...Rerouting Help needed
canister = orb of power.... that thread was awesome XD
12-01-2008, 11:17 AM
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Car: 92RS 25th Anniv./88 IROC Z28 Vert
Engine: 305 TBI w/Tpi Air / 305 TPI
Transmission: 700r4/700r4
Axle/Gears: Posi
Re: Vacuum Line pics...Rerouting Help needed
That canister is pretty easy to find. Take a trip to your local junkyard & look under the hood of any 80's Chevy V8 powered car, all the bits you are missing are in there... try to find an '86, '87, or '88 Monte, Caprice, El Camino, Grand Prix, Camaro, or Firebird. These later car's pieces will work properly with your version of the CCC computer system. The system changed a little each year, so make sure the diagram you use is from 1986.
Anyone else with help on the pics. In particular in pic 2 the "what plugs into here" part?
12-01-2008, 01:06 PM
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
That's a pretty thorough mess.
The check valve in the line going to the PCV valve - that's supposed to be in the vapor canister system. Get it out of the PCV line.
Your Pic 2 items: Carb goes to the vapor canister control valve (which isn't even there), the lower ones in the pic are the EFE TVS in the diagram that has been posted for you. The EFE is the "heat riser" valve between the passenger side exhaust manifold and exhaust pipe.
The check valve in the line going to the PCV valve - that's supposed to be in the vapor canister system. Get it out of the PCV line.
Your Pic 2 items: Carb goes to the vapor canister control valve (which isn't even there), the lower ones in the pic are the EFE TVS in the diagram that has been posted for you. The EFE is the "heat riser" valve between the passenger side exhaust manifold and exhaust pipe.
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