GoldDogTrucking Posted November 30, 2022 Share Posted November 30, 2022 2011 CHU613 MP8 1. Fan clutch failed so I bought the kit masters air conversion kit, is there a way to get that installed and the computer told to switch over to air without going to Mack because mine is deleted and they say the new update will do away with the delete tunes? 2. All of my emissions is still on the truck and plugged in but the truck is deleted, can I unplug and remove everything to run a straight pipe or what has everyone else done? Quote Link to comment Share on other sites More sharing options...
fjh Posted November 30, 2022 Share Posted November 30, 2022 1 hour ago, GoldDogTrucking said: 2011 CHU613 MP8 1. Fan clutch failed so I bought the kit masters air conversion kit, is there a way to get that installed and the computer told to switch over to air without going to Mack because mine is deleted and they say the new update will do away with the delete tunes? 2. All of my emissions is still on the truck and plugged in but the truck is deleted, can I unplug and remove everything to run a straight pipe or what has everyone else done? Most guys punch holes in the cat! if yours is deleted it has likely been done already! 1 Quote Link to comment Share on other sites More sharing options...
Onyx610 Posted November 30, 2022 Share Posted November 30, 2022 Yup FJH is correct. Guys drill a 4 inch hole through the filters and push a pipe through them. Looks like it’s all intact but it’s a straight through maze for the exhaust. Quote Link to comment Share on other sites More sharing options...
Mackpro Posted November 30, 2022 Share Posted November 30, 2022 (edited) I saw lots of delete related fan clutch issues and hear of even more today from friends at dealerships. The huge Borg Warner Cool Logic fan clutch was a disaster and Mack kept using it till 2013-14 . Then the smaller Behr fan came out in a kit with fan blade and all needed parts included. Bad news is to make it work correctly the engine ECM needed to be reprogrammed from the dealership. The dealership contacts Mack and they make the change in the programing for that specific truck and the dealership programs the ECM with the complete program. Sadly you can’t pick and choose what you want going back in to the ECM. It’s all or nothing. Same goes for changing to a air fan clutch. Now I’m hearing that several guys who already changed to the new fan clutchs and got the correct program installed by the dealership then later got theirs deleted and now the fan clutch won’t engage because the file the delete guy put in has the old Borg Warner fan clutch programing mixed in with it. It was quite a mess for a lot of guys. Most all of these delete guys know nothing of the actual files going into the trucks . They go buy a bootleg version of Tech Tool and have some out of country 3rd party people remote in using Team Viewer and shoot the software into the truck . I have not seen it affect trucks that already had air fan clutches on them though. However never really saw very many Mack Mp truck with air fans. Mostly Fleet trucks like UPS and Kenan seemed to always use Horton air fans. Air fan on Volvos are super common. Edited November 30, 2022 by Mackpro 1 1 1 Quote Link to comment Share on other sites More sharing options...
Freightrain Posted November 30, 2022 Share Posted November 30, 2022 Just my .02 You want to swap from electric clutch to air? Why not use an air solenoid? Use computer signal to actuate the solenoid to turn on/off air to the new clutch? Or is there a lot more to it? Seems like it would work. Not so much if you were swapping the other way. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment Share on other sites More sharing options...
GoldDogTrucking Posted December 1, 2022 Author Share Posted December 1, 2022 Mackpro, that’s exactly what I’m running into. Freightrain, Mackpro too, the air conversion kit came with a solenoid that would accept an existing plug on the truck. I’m wondering why I couldn’t just put the fan on a clutch or could it be possible to find someone that can go into the computer and switch it over to air from electric? Quote Link to comment Share on other sites More sharing options...
Popular Post Onyx610 Posted December 1, 2022 Popular Post Share Posted December 1, 2022 20 minutes ago, GoldDogTrucking said: Mackpro, that’s exactly what I’m running into. Freightrain, Mackpro too, the air conversion kit came with a solenoid that would accept an existing plug on the truck. I’m wondering why I couldn’t just put the fan on a clutch or could it be possible to find someone that can go into the computer and switch it over to air from electric? The problem is that who knows what kind of software was programmed into your truck with god only knows what parameters. It’s Russian roulette with these deletes. 2 1 Quote Link to comment Share on other sites More sharing options...
Freightrain Posted December 1, 2022 Share Posted December 1, 2022 15 hours ago, GoldDogTrucking said: Mackpro, that’s exactly what I’m running into. Freightrain, Mackpro too, the air conversion kit came with a solenoid that would accept an existing plug on the truck. I’m wondering why I couldn’t just put the fan on a clutch or could it be possible to find someone that can go into the computer and switch it over to air from electric? If you use the existing signal from the computer, why would it care if it knows if it is electric or air? As long as it comes on when it is supposed to. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment Share on other sites More sharing options...
fjh Posted December 1, 2022 Share Posted December 1, 2022 13 minutes ago, Freightrain said: If you use the existing signal from the computer, why would it care if it knows if it is electric or air? As long as it comes on when it is supposed to. Because it has to go down the right Wire! Magic fan and air fan are two different animals! one runs on mil volts one runs on 12 volts! Air fan has 12v solenoid! 2 Quote Link to comment Share on other sites More sharing options...
Freightrain Posted December 1, 2022 Share Posted December 1, 2022 Use signal wire to turn on small relay to control the air solenoid. That removes the need for big current control from the computer signal. Look squirrel...... I have a set of train crossing lights that activate when my garage door opens/closes. I have the new style opener that spins the cable shaft to raise door(no more arm on the center of the door). It is a 12v motor because it has its own battery back up. It won't run the 12v bulbs in the train signal without throwing an over current warning. So, I put a small 12v relay on the motor wires that now close the points on a 12v transformer that runs the lights. Works perfect. 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment Share on other sites More sharing options...
GoldDogTrucking Posted December 2, 2022 Author Share Posted December 2, 2022 Where would I get the signal from to tell it to turn on? Quote Link to comment Share on other sites More sharing options...
Freightrain Posted December 2, 2022 Share Posted December 2, 2022 Where is the wire to the electric fan clutch? Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment Share on other sites More sharing options...
GoldDogTrucking Posted December 3, 2022 Author Share Posted December 3, 2022 I’m pretty sure there’s an entire harness plugged into it. I’m thinking there may be a way to wire it off a thermal switch but I have a call into Kit Masters to see if they offer a solution. I know the older trucks that didn’t have any computers had a way to turn the fan on and off. Surely there’s a way. Quote Link to comment Share on other sites More sharing options...
Freightrain Posted December 3, 2022 Share Posted December 3, 2022 I would think a shutterstat would work an air clutch fan? Just like for shutters back in the day. You could put a bypass air line to the dash to manually turn it on. Seems simple enough. 2 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment Share on other sites More sharing options...
mechohaulic Posted December 3, 2022 Share Posted December 3, 2022 a shutterstat will work providing it opens at right temp for fan to kick on . before the computers took over ,a simple easy to install fan control was just an on/off switch in cab going to an electric over air solenoid having #4 air (1/4 plastic) line to fan hub. today's world much more technical. can't just take any power source . air valve in cab totally eliminates the computer ; bit more work to mount an air switch neatly in cab and run line to fan. not knowing for sure if the fan changing from on to off will kick signal to computer of engine problem ?? 1 Quote Link to comment Share on other sites More sharing options...
GoldDogTrucking Posted December 3, 2022 Author Share Posted December 3, 2022 Thank you all for the ideas, I sure will be glad when this one is figured out. Quote Link to comment Share on other sites More sharing options...
Freightrain Posted December 3, 2022 Share Posted December 3, 2022 6 hours ago, mechohaulic said: a shutterstat will work providing it opens at right temp for fan to kick on . before the computers took over ,a simple easy to install fan control was just an on/off switch in cab going to an electric over air solenoid having #4 air (1/4 plastic) line to fan hub. today's world much more technical. can't just take any power source . air valve in cab totally eliminates the computer ; bit more work to mount an air switch neatly in cab and run line to fan. not knowing for sure if the fan changing from on to off will kick signal to computer of engine problem ?? How about doubling it up. Use shutterstat for normal operations then have another air line with solenoid and switch on dash to operate? Or use a TP flip valve for using air only? I'm sure in the right catalog you could find a small/simple air on/off valve. 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment Share on other sites More sharing options...
GoldDogTrucking Posted December 4, 2022 Author Share Posted December 4, 2022 I like the Shutterstat and an additional switch on the dash idea. I’m going to try that, I’m hoping the computer likes that idea too. Quote Link to comment Share on other sites More sharing options...
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