AMC86Kid Posted September 7, 2017 Share Posted September 7, 2017 Ok so I'm trying to install the 2.8 clutch fan on my 3.4 in hopes that it will help keep the temperature of my engine lower and after reading everything online i just wanted to make sure you guys agreed with this the clutch fan goes between the Radiator and the engine and the direction of air is suppose to be sucking from the radiator and blowing towards the engine dose that sound right to you guys also i can put up a pic of it once i figure out how to get it on there Link to comment Share on other sites More sharing options...
Jeep Driver Posted September 7, 2017 Share Posted September 7, 2017 Yes, pulling through the radiator toward the engine. Fans come CW or CCW or some refer to them as RR or reverse rotation, depending on whether or not your retained the Vbelt or you are using the later serpentine belt. If you have the serpentine, the 2.8 fan may push, not pull. Link to comment Share on other sites More sharing options...
Green Mesa XJ Posted September 7, 2017 Share Posted September 7, 2017 I'm confused as to what the previous owners did aside from drop a 3.4 in. Wasn't there something about the water pump direction in later gm 2.8-3.1-3.4 bring different and the timing cover and water pump from the 2.8 had to be used? Maybe this is affecting the cooling ? Sent from my iPhone using Tapatalk Pro Link to comment Share on other sites More sharing options...
AMC86Kid Posted September 7, 2017 Author Share Posted September 7, 2017 i dropped in a 3.4 it has just one belt on it unlike the 2.8 i will put up a pic later so you can see how i have it set up I'm pretty sure the timing and the water pump are the original one that came with the 3.4 Link to comment Share on other sites More sharing options...
omega_rugal Posted September 7, 2017 Share Posted September 7, 2017 if it blows the wrong way you can unbolt the fan and turn it around, as long as it doesn`t touch anything... Link to comment Share on other sites More sharing options...
AMC86Kid Posted September 7, 2017 Author Share Posted September 7, 2017 ok so i have a problem the fan has to be connected to the crank shaft (any other pully and it will hit other parts) and the crankshaft spins counter clockwise the blades on my fan when spinning counter clockwise will only push air towards the radiator even if i flip it around i have to drill the rivets out and flip over the individual fan blades then rivit them back on other wise i have to get an electric fan Link to comment Share on other sites More sharing options...
Green Mesa XJ Posted September 7, 2017 Share Posted September 7, 2017 3.4 Camaro is a reverse rotation water pump. Honestly I have got no idea what that means for the cooling system of the jeep. Plenty of people have done the swap some say use the 2.8 timing coven and water pump others don't mention it. Sent from my iPhone using Tapatalk Pro Link to comment Share on other sites More sharing options...
AMC86Kid Posted September 7, 2017 Author Share Posted September 7, 2017 when most people do the engine swap they use the 3 belt system from the 2.8 and connect it to the 3.4 i hate the way the 3 belt system looks so I'm doing it with just one belt to make the system look simple i just have to figure out all the little kinks to it Link to comment Share on other sites More sharing options...
AMC86Kid Posted September 8, 2017 Author Share Posted September 8, 2017 looks like i was wrong even if you flip the blades around it still won't work the arms that hold the blades have to be in the correct direction otherwise it won't work well that sucks looks like I'm gonna have to use an electric fan Link to comment Share on other sites More sharing options...
Green Mesa XJ Posted September 8, 2017 Share Posted September 8, 2017 Do they still sell flexible blade kits? Mine never had the factory clutch and blade, it was a spacer with a fan that flexes as the temperature changes. Electric is probably better, but it's another possibility if they still sell them Sent from my iPhone using Tapatalk Pro Link to comment Share on other sites More sharing options...
omega_rugal Posted September 8, 2017 Share Posted September 8, 2017 2 hours ago, AMC86Kid said: looks like i was wrong even if you flip the blades around it still won't work the arms that hold the blades have to be in the correct direction otherwise it won't work well that sucks looks like I'm gonna have to use an electric fan weird, mine does reverse the flow when turned backwards, i didnpt noticed until i fired it up... Link to comment Share on other sites More sharing options...
AMC86Kid Posted September 8, 2017 Author Share Posted September 8, 2017 it depends on how your fan blades are designed the easiest way is to simply spin the fan the opposite direction but i can't do that so i will simply put in an electric fan i checked on another working vehicle and the blades on the fan were curved the opposite way of mine most likely this fan was made to be spun clockwise and not counter clock wise like i need it i will get an electric fan in there for now then i will see if i can forge this one to something that can work that way i can have two fans one in front of the radiator and one behind I'm pretty sure that all the new fans that they sell are plastic and not steal and aluminum like the 2.8 one Link to comment Share on other sites More sharing options...
carnuck Posted September 9, 2017 Share Posted September 9, 2017 It looks like one blade is reversed on that? The fan clutch won't like spinning the wrong way either. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
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