Wrknrvr Posted January 26, 2019 Report Share Posted January 26, 2019 . I just wonder if a manual controlled clutch fan is a good idea. As a quiet jake brake for when it is needed. Or for when it is needed to control temperature. Before the engine clutch fan operates and you start a incline that you really think it would help. I think I may have two more gas valves in my parts collection. Add a gauge and a switch with a lght to tell if all the air is exhausted. Sorta bored. Sitting in the desert with time to think.,,,, . Vern Link to comment Share on other sites More sharing options...
Scrap Posted January 26, 2019 Report Share Posted January 26, 2019 You'll risk cracking an AC condenser and possible charge air cooler on the times that you do forget or are late in remembering. Best to electrically wire a fan override switch to the ECU and set parameters to enable it. Let it do the remembering and you do the want-to's. It also has to act fast enough or it'll smoke the clutch. Fan clutch warranty used to be dependent on the solenoid used, but I'm not sure if that is still an issue or not. Link to comment Share on other sites More sharing options...
geodog Posted January 26, 2019 Report Share Posted January 26, 2019 Roger Jones and I put a manual switch on my trucks fan at Crossville one year. I use it as an aux. engine brake. I have a VED 12 in a VNL 610. ShortyO Link to comment Share on other sites More sharing options...
Parrformance Posted January 26, 2019 Report Share Posted January 26, 2019 You can purchase a thermostat switch and set it to come on if you forget. And still wire in an on/off switch to override the t-stat. 2006 Volvo VNL 780, " Arvey" Volvo D12, 465hp, 1650 ft/lbs tq., ultrashift 2003 Jeep Wrangler Rubicon 2010 Forest River Coachman Freedom Express 280RLS Jackalopee Link to comment Share on other sites More sharing options...
jenandjon Posted January 27, 2019 Report Share Posted January 27, 2019 The only time I ever turn my fan on Manual is at the end of the day during cool down. The old trucks all had manual fans. You had to turn them on when you were idling so the A/C would work. Farmer, Trucker, Equipment operator, Mechanic Quando omni flunkus moritati-When all else fails, play dead I'm a man, but I can change, if I have to, I guess. Link to comment Share on other sites More sharing options...
Scrap Posted January 27, 2019 Report Share Posted January 27, 2019 Ya AC head needs to go into it. Charge air temp needs to go into it too. EGR valve command position or mass flow if EGR equipped. Truck air pressure too. They all go into the fan brain, but just the first two on a pre 03. I suppose a guy could double check this with the original air line. But I think a double check may be too slow and smoke the lining. Probably needs to be a double check and a syncro valve? But I'm telling ya, just wire it in like God intended. Dunno Volvo but on mine the wires should already be in the dash. Fan switch is still standard position, but with 12 rib kevlar serpentine belts and 2spd fans in the last few years it isn't as important as it once was. Probably more than half option to delete the switch. I use it when doing a parked regen, when pumping/sucking with the water truck, when going up a draw when I'm slower than my tailwind, when scratching to the top of a field road, on my way in before coming in to load on the go (shut it off one min early so it is guaranteed off when crossing the azz end of a combine), when tailgating with the dump (if I remember...it saves me the little hiccup lump in the middle), and at the low RPM point between the first shift at the base of a long grade. Bottom of the grade one I really only do that with v-belt trucks, the rest I just let them do their thing unless they start to cycle. Link to comment Share on other sites More sharing options...
Star Dreamer Posted January 29, 2019 Report Share Posted January 29, 2019 Our Freightliner has a switch on the dash to turn on the fan manually. I use it to engage the fan before I start climbing a large Hill or if I am in stop an go traffic. I know it will come on automatically if I forget. I have left it on accidently but never had any issues just excessive noise. Dave 2005 Freightliner Century S/T, Singled, Air ride ET Jr. hitch 2019 46'+ Dune Sport Man Cave custom 5th wheel toy hauler Owner of the 1978 Custom Van "Star Dreamer" which might be seen at a local car show near you! Check out http://www.hhrvresource.com/ for much more info on HDT's. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.