divices that are in the heads?
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Joined: Jun 2010
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From: Hamilton, NJ
Car: 1986 Pontiac Firebird
Engine: 357ci 400hp 4BBL
Transmission: 700r4
divices that are in the heads?
I had a set of 601 heads done at a machinist. when i got then back I noticed that there were plugs in the that uses a square tool to come out. I then looked on my engine and found that there is some sort of sending unit on one head and the other is some type of devide that has a wire coming out of it. Are these deviced smog related ( can I just not use them ) or do I need to use them. If I need them then what tool do I need to use to ge the plugs out.
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Joined: Mar 2009
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From: Indiana
Car: 91 Camaro
Engine: 355 Carb
Transmission: 5 speed
Axle/Gears: 342 Posi
Re: divices that are in the heads?
You will probably need the sensors if you're using the same computer.Sometimes the plug squares are the same size as a ratchet,("3/8").If yours are not,measure the squares and get some key stock from the hardware store.Use an adjustable wrench to remove them.
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: divices that are in the heads?
Sounds like 1 is the oil pressure sending unit.
Last edited by Stephen; Dec 11, 2010 at 04:04 PM. Reason: read wrong
Thread Starter
Member
Joined: Jun 2010
Posts: 159
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From: Hamilton, NJ
Car: 1986 Pontiac Firebird
Engine: 357ci 400hp 4BBL
Transmission: 700r4
Re: divices that are in the heads?
yeah one is definately some sort of sending unit and the other is like a sensor. Are they nessecary or can I just leave then out.
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: divices that are in the heads?
There's no pressurized oil in the head. The driver side head has the temperature gauge sender or warning light switch, and the passenger side has the fan switch.
Depending on how well sealed the plugs are in there, you maybe be able to use a ratchet, maybe with a filed-down extension, or you can go to a tool store and get a square-recessed pipe plug extractor.
Depending on how well sealed the plugs are in there, you maybe be able to use a ratchet, maybe with a filed-down extension, or you can go to a tool store and get a square-recessed pipe plug extractor.
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