fan clutch solenoid mess

[spencer proffitt]

Guys, I had a reverse light problem on a m 1078 that led to a fan clutch solenoid question under another post, so I started a new post just for this. My fan clutch is free, I discovered this by applying air directly to the fan clutch fitting on the upper shroud, all is good. Began to trace down solenoid, it gone, lines plugged at cab floor, I want to scream. no brackets or any thing. I hate laziness of some people. Any reason I could not use any commercial solenoid since I am starting over. is it 12 or 24 I gotta dig into the shematic, I know roughly where the plug is. Im sure the temp switch will need to be checked out. Thanks for your help

 

[spankybear]

I would have to do some research but this may work

Amazon.com

this maybe a better choice. It's smaller and only a 3 way to keep thing simple
to keep it small I 'd think I would try this one.

Amazon.com

 

[spankybear]

Just asking here... I know the fan freewheels with air applied. Dose the solenoid have to be on to apply air? Also you need to have the valve vent to allow the fan to come on. Is the fittings for the valve 1/4" or 3/8" I know the tubing it 1/4" That valve above should allow from all of the above.

 

[NDT]

Guys this has been covered don’t reinvent the wheel, search in FMTV forum “fan solenoid”, the replacement is Parker 8204-0459-45. 24 volt.

 

[Ronmar]

what NDT said. Solenoid is on to apply air and freewheel fan. Temp switch removes power when it hits 205F. Solenoid de-energizes and vents fan side to engage fan. You should hear this venting from under the passenger dash every time you turn off the truck...

 

[spankybear]

Guys this has been covered don’t reinvent the wheel, search in FMTV forum “fan solenoid”, the replacement is Parker 8204-0459-45. 24 volt.

but the wheel is too round

 

[spencer proffitt]

Got it, thanks gentleman!