Crewcab update...
#1111
Registered User
Thread Starter
Yesterday I made a plate to slip into the ashtray for my manual on/off switch for the fans. I did not want to rely wholly on the coolant temperature switch.
Here is a link to that thread....
1stGen.org ? View topic - Putting Rocker switches in your ashtray....
here is a pic of it installed in the truck...
And a week or so ago I installed the coolant temperature switch below the T-stat housing...since I have a NV4500 I did not need that location for the engine coolant lines to the water/oil cooler for the tranny.
The switch is on and 200* and off at 185*, and is a ground to the block as it's switch. It was 3/8" NPT, and I had to get an adapter to fir the block since it is 1/2" NPT.
Here is a link to that thread....
1stGen.org ? View topic - Putting Rocker switches in your ashtray....
here is a pic of it installed in the truck...
And a week or so ago I installed the coolant temperature switch below the T-stat housing...since I have a NV4500 I did not need that location for the engine coolant lines to the water/oil cooler for the tranny.
The switch is on and 200* and off at 185*, and is a ground to the block as it's switch. It was 3/8" NPT, and I had to get an adapter to fir the block since it is 1/2" NPT.
#1112
Registered User
Thread Starter
Made up a plate to mount the 85 Amp constant duty solenoid, and 30amp circuit breaker behind the battery using a couple existing holes in the fender.
Then pull the fan and shroud and get the new electric fans in place. But first I had to find a couple small bolts, and drill a couple holes in the fan frame. Then a slight bit of round file work to make the bolt sit nice and flush.
Then pull the fan and shroud and get the new electric fans in place. But first I had to find a couple small bolts, and drill a couple holes in the fan frame. Then a slight bit of round file work to make the bolt sit nice and flush.
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twostep (03-15-2016)
#1113
Registered User
Thread Starter
Then it was wiring time. Not that I don't like wiring, but it's a tedious job to do it right. I mechanically crimp each connector, then solder it, then add dielectric grease, then shrink tube. And then there is my large size to deal with...big body and hands, and long arms does not equate to easy working conditions under the dash.
So a couple hours of wiring and it was all done. I Ran the wire from the Temp switch up along the upper rad hose...fiber tape, and then a zip tie to hold the tape....see how this stands up to the heat and vibrations?
Wired the fans individually into a 4 gang wiring block I had...so each has it's own power and ground, and can be unplugged easily.
And you can see all the room I have between the fans and the front of the motor..
There is about a 1/4" gap between the fan frame and the rad, I'm going to see how it cools with that gap left open, but thinking it might pull air from around the frame a bit more then I'd like.....but we will see. But I had planned on running some foam weather stripping from the hardware store to make a tighter seal, and allow the fans to pull air "only" through the rad.
So that's about it...will report back on any MPG I gain, or cooling issues I find....good or bad.
So a couple hours of wiring and it was all done. I Ran the wire from the Temp switch up along the upper rad hose...fiber tape, and then a zip tie to hold the tape....see how this stands up to the heat and vibrations?
Wired the fans individually into a 4 gang wiring block I had...so each has it's own power and ground, and can be unplugged easily.
And you can see all the room I have between the fans and the front of the motor..
There is about a 1/4" gap between the fan frame and the rad, I'm going to see how it cools with that gap left open, but thinking it might pull air from around the frame a bit more then I'd like.....but we will see. But I had planned on running some foam weather stripping from the hardware store to make a tighter seal, and allow the fans to pull air "only" through the rad.
So that's about it...will report back on any MPG I gain, or cooling issues I find....good or bad.
#1114
Registered User
It appears that your 12v source wire is running from the battery post through the 30 breaker to the 85 amp solenoid. Is that correct? why the amperage mismatch and why such a big solenoid?
#1115
Registered User
Trashing, I have seen trucks where people pull clutch fans for the winter around here and replaced with nothing till the clutch fan goes back in at springtime.
I just install a large piece of cardboard in-between the Rad. and the intercooler in my 2nd gens that I run in the winter.
I could see a MPG improvement from removing the clutch fan.
Nice job.
I just install a large piece of cardboard in-between the Rad. and the intercooler in my 2nd gens that I run in the winter.
I could see a MPG improvement from removing the clutch fan.
Nice job.
#1116
Registered User
Thread Starter
Trashing, I have seen trucks where people pull clutch fans for the winter around here and replaced with nothing till the clutch fan goes back in at springtime.
I just install a large piece of cardboard in-between the Rad. and the intercooler in my 2nd gens that I run in the winter.
I could see a MPG improvement from removing the clutch fan.
Nice job.
I just install a large piece of cardboard in-between the Rad. and the intercooler in my 2nd gens that I run in the winter.
I could see a MPG improvement from removing the clutch fan.
Nice job.
#1117
Registered User
Thread Starter
So you will reinstall your mechanical fan for the summer?
That is the plan....
It appears that your 12v source wire is running from the battery post through the 30 breaker to the 85 amp solenoid. Is that correct? why the amperage mismatch and why such a big solenoid?
Found a couple wiring diagrams on-line, and for some reason they used the big 85 amp CD solenoid. Yes it's over kill, since the 30amp circuit breaker will trip long before the solenoid will be harmed. But if I ever decided to upgrade to fans that say pulled 30+ amps each...then I would still be set.
That is the plan....
It appears that your 12v source wire is running from the battery post through the 30 breaker to the 85 amp solenoid. Is that correct? why the amperage mismatch and why such a big solenoid?
Found a couple wiring diagrams on-line, and for some reason they used the big 85 amp CD solenoid. Yes it's over kill, since the 30amp circuit breaker will trip long before the solenoid will be harmed. But if I ever decided to upgrade to fans that say pulled 30+ amps each...then I would still be set.
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twostep (03-16-2016)
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thrashingcows (03-15-2016)
#1119
Registered User
#1120
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Join Date: Dec 2010
Location: Land of the Toxic Avenger
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Trashing, I have seen trucks where people pull clutch fans for the winter around here and replaced with nothing till the clutch fan goes back in at springtime.
I just install a large piece of cardboard in-between the Rad. and the intercooler in my 2nd gens that I run in the winter.
I could see a MPG improvement from removing the clutch fan.
Nice job.
I just install a large piece of cardboard in-between the Rad. and the intercooler in my 2nd gens that I run in the winter.
I could see a MPG improvement from removing the clutch fan.
Nice job.
Trashing......
Tee hee hee.......
Hey TC
Is your battery from March of 2012 ? And still working ?
You got a goodie.......
#1121
Registered User
Thread Starter
Yeah Oliver and his "trashing" designation...term of endearment I guess....
Yup that one is from the 4wd donor truck and is from 2012....and my other one is from 2010...and still going! I swap them about every 6 months or so to keep them fresh.
#1122
Registered User
Yeah I just figured a guy with Thrashing[cows] for your name, and the fact that you like to listen to good old heavy "trashing" metal music….I just figured Thrashing was a good fit for you. I can use TC, or anything else though if you prefer.
I just realized it got auto corrected to Trashing…Sorry Brain.
#1123
Registered User
Thread Starter
Yeah I just figured a guy with Thrashing[cows] for your name, and the fact that you like to listen to good old heavy "trashing" metal music….I just figured Thrashing was a good fit for you. I can use TC, or anything else though if you prefer.
I just realized it got auto corrected to Trashing…Sorry Brain.
I just realized it got auto corrected to Trashing…Sorry Brain.
#1124
Registered User
Sometimes I am an idiot.
Maybe I should practice typing...tHrashing, tHrashing, tHrashing.
Maybe I should practice typing...tHrashing, tHrashing, tHrashing.
#1125
Registered User