Author Topic: under hood wires need help bad!!!  (Read 14929 times)

Offline rich weyand

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Re: under hood wires need help bad!!!
« Reply #15 on: June 17, 2013, 01:09:09 AM »
"Thanks  Which wires are the oil pressure water temp and carb solenoid ?????"

These are: http://i816.photobucket.com/albums/zz90/fordkilaz/108.jpg

And they are shown on the middle right side of this diagram: http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/81-87_V8_engine.jpg


 Ok I will and whick one the booster one or the upper one by the heater box???


I have no idea what you are asking here.  In your picture you are holding a bunch of wires you say have been cut.  The colors match the circuit diagram for the functions I noted.  Looks like someone pulled an engine, and disconnected it electrically with a side cutters.

So what's the question?
Rich

"Working Girl": 1978 K-10 RCSB 350/TH350/NP203 +2/+3 Tuff Country lift

Offline Captkaos

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Re: under hood wires need help bad!!!
« Reply #16 on: June 17, 2013, 10:23:20 AM »
Ditto!  I don't know what you are asking.  We can't see in relation to pic exactly where you are talking about without guessing.

Offline fordkilaz

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Re: under hood wires need help bad!!!
« Reply #17 on: June 17, 2013, 06:20:20 PM »
Ok sorry I was asking about which one you guys wanted more pics of.

Offline fordkilaz

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Re: under hood wires need help bad!!!
« Reply #18 on: June 17, 2013, 07:57:33 PM »
 Here are some more pics  http://s816.photobucket.com/user/fordkilaz/library/?sort=3&page=1  The first pic with the vacume line and the third one is what Im trying to find out what they are.

Offline rich weyand

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Re: under hood wires need help bad!!!
« Reply #19 on: June 17, 2013, 08:05:04 PM »
I already told you what they are....
Rich

"Working Girl": 1978 K-10 RCSB 350/TH350/NP203 +2/+3 Tuff Country lift

Offline fordkilaz

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Re: under hood wires need help bad!!!
« Reply #20 on: June 18, 2013, 12:29:09 AM »
I already told you what they are....
????? I did find the oil and water and solenoid wires and marked them and the red wires that go to the blocl on the fire wall its the 2 vacume things like I have been asking. What are they??? http://i816.photobucket.com/albums/zz90/fordkilaz/002.jpg    http://i816.photobucket.com/albums/zz90/fordkilaz/107.jpg

Offline rich weyand

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Re: under hood wires need help bad!!!
« Reply #21 on: June 18, 2013, 02:17:13 AM »
Sorry, I thought you were asking about the third picture of the new stuff, which is the cut wires.

OK, I found some info on this other stuff.  Has to do with Electronic Spark Control (ESC) as well as the lock-up torque converter.  Here's the thread:
http://67-72chevytrucks.com/vboard/showthread.php?t=279479

And that four-wire connector is part of the same ESC system, that plugs into the distributor.

Here's the thread on how to lose the ESC:
http://www.73-87.com/7387garage/drivetrain/escrepl.htm

Given that you are going with a new engine and all, you can lose the ESC stuff.  You may need the vacuum switch to lock up the torque converter depending on what tranny and torque converter you are using.
Rich

"Working Girl": 1978 K-10 RCSB 350/TH350/NP203 +2/+3 Tuff Country lift

Offline fordkilaz

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Re: under hood wires need help bad!!!
« Reply #22 on: June 18, 2013, 06:04:48 PM »
 Hey I just want to say THANKS!!!!!   That's what I was looking for its all ecs and converter lock up shoot. Here is what Im trying to do. I'm putting in a th 350 with a blown 421 sbc. I wan't to use all the factory gauges and not the after market ones. I am tring to go for that stock look inside the cab.  I am also gonna put the ac back on this truck and now Im tring to find the ac wires and some how tie them into the ele fans Im gonna use. I would like to have one fan come on when I turn the ac on.  I think just tie into the clutch wire with a relay to the fan???? 

Offline rich weyand

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Re: under hood wires need help bad!!!
« Reply #23 on: June 18, 2013, 07:34:47 PM »
Tieing into the clutch wire with a relay should work.  You can use a two-circuit relay off the temp sensor to run the two fans, one on each circuit of the relay, then a relay on the A/C clutch wire connected to one of those circuits to bring one fan on with the A/C.  This way the temp sensor can bring on both fans, but they are isolated from each other (not just wired in parallel) so that the A/C clutch connection only brings on one of them.  That is, on one fan, you just have one side of the temp sensor relay, and connected to the other fan you have both the other side of the temp sensor relay plus the A/C clutch relay.  If either one or both of those are on, that fan will run.
Rich

"Working Girl": 1978 K-10 RCSB 350/TH350/NP203 +2/+3 Tuff Country lift

Offline bd

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Re: under hood wires need help bad!!!
« Reply #24 on: June 18, 2013, 09:08:15 PM »
Tieing into the clutch wire with a relay should work.  You can use a two-circuit relay off the temp sensor to run the two fans, one on each circuit of the relay, then a relay on the A/C clutch wire connected to one of those circuits to bring one fan on with the A/C.  This way the temp sensor can bring on both fans, but they are isolated from each other (not just wired in parallel) so that the A/C clutch connection only brings on one of them.  That is, on one fan, you just have one side of the temp sensor relay, and connected to the other fan you have both the other side of the temp sensor relay plus the A/C clutch relay.  If either one or both of those are on, that fan will run.

A very workable plan!

If I may expand the idea, instead of powering the condenser fan directly off the A/C clutch, think about running the control circuit of the 'condenser fan relay' (terminal 85 or 86 - depending on the relay selected) to the "power side" of the low-pressure cycling switch located at the accumulator.  Then route the relay Common (terminal 30) through a fuse to battery positive and connect the N.O. relay terminal (87) to the condenser fan through a N.O. high-pressure switch mounted either directly in the compressor head or the high-side line.  That way the condenser fan will run only when the A/C is switched ON and only when needed to bring the high-side pressure down.  That is to say, the condenser fan will cycle ON only when needed, but also continue to run as long as the A/C is switched ON and the high side remains high for the few moments after the compressor has cycled off.  The greatest advantage in this approach is that the condenser fan won't run unnecessarily during the cooler winter months when you're using the defrost mode.    - Good luck with your project!
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline fordkilaz

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Re: under hood wires need help bad!!!
« Reply #25 on: June 18, 2013, 09:46:07 PM »
 That would work better then my plan I think Ill try that way.  I don't plan on driving it when its winter but I would think just cold out would fog up the windshield.  Ok 1 more ? is the small black vacuume line on the pass side  fire wall isthat the line that feeds the vacuume for the heater ac controls???

Offline Captkaos

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Re: under hood wires need help bad!!!
« Reply #26 on: June 18, 2013, 10:34:13 PM »
I am a little confused.  I listed what those were on my original answer?

Offline fordkilaz

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Re: under hood wires need help bad!!!
« Reply #27 on: June 19, 2013, 03:33:39 PM »
[email][/emailOK sorry.  Its a little black vacuum line that comes right out of the fire wall.  no wires going to it just a line.  OK so here is the ? what feeds the heater and ac controls with vacuum???

Offline bd

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Re: under hood wires need help bad!!!
« Reply #28 on: June 19, 2013, 04:51:06 PM »
OK sorry.  Its a little black vacuum line that comes right out of the fire wall.  no wires going to it just a line.  OK so here is the ? what feeds the heater and ac controls with vacuum???

Vacuum is plumbed from the intake manifold, via a 7/32" hose, to a ~6" round, black plastic reservoir that mounts to the driver side firewall.  The reservoir contains an integral check valve that keeps reservoir vacuum from bleeding off when the engine is accelerated hard or shut down.  The vacuum line from the A/C control plumbs directly into this reservoir.
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline fordkilaz

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Re: under hood wires need help bad!!!
« Reply #29 on: June 19, 2013, 06:18:36 PM »
OK sorry.  Its a little black vacuum line that comes right out of the fire wall.  no wires going to it just a line.  OK so here is the ? what feeds the heater and ac controls with vacuum???

Vacuum is plumbed from the intake manifold, via a 7/32" hose, to a ~6" round, black plastic reservoir that mounts to the driver side firewall.  The reservoir contains an integral check valve that keeps reservoir vacuum from bleeding off when the engine is accelerated hard or shut down.  The vacuum line from the A/C control plumbs directly into this reservoir.

Ok in this pic the black round thing is what your talking about right above the tire..http://s816.photobucket.com/user/fordkilaz/media/001.jpg.html

Then is this pic http://s816.photobucket.com/user/fordkilaz/media/002.jpg.html is what the ball thing goes to its the small black line right above the ground cable in the pic.