A/c idler pully and tensioner question

[DiverDarrell]

What the heck is the part number for this? Specially for the v-belt. I'm at a loss and my only guess would be 9N-3345? It one of the last few parts I'm searching for, and is the protecht required?

 

[Smike740]

Not sure on the part number. I gave up trying to find one and fabbed one myself. I started with an off the shelf AC idler brkt and pulley for a ford purchased from napa for about $20 (Hayden 5950). I made a new arm out of 1" x 1/2" bar and added a spacer to get the correct offset. I have included a picture of the idler I started with.

I completed my install last week and so far it functions great. I have 40 degree air at the vents, but that was with it only being 80 outside. I hope it does as well when its hotter.

 

[mkcoen]

I completed my install last week and so far it functions great. I have 40 degree air at the vents, but that was with it only being 80 outside. I hope it does as well when its hotter.

Nice job on the pulley! I get about 40° at the vent on mine even when it's in the mid 90's out. The problem is there's so much space inside the cab, so much heat coming off of everything (the floor, the windows, the roof, etc) that the A/C just can't keep up with it. I can keep it to the point where it's in the low 80's in the cab so it's borderline comfortable/uncomfortable but it beats the heck out of it being 95°+ in there.

 

[DiverDarrell]

Thanks for the info, I was starting to think a semi custom route was my future. I did find the PS article saying our trucks need 3.75 pounds of r134. My last components are the belt idler, and hoses. As I don't think the red dot protecht is required for operations, just diagnostics. Oh I need belts too haha

 

[Smike740]

Do you remember what issue of PS had the R134 charge amount? I currently have 36oz of R134 in mine but I know I need to add some more based on the AC manifold gauge pressures.

I didn't use the protecht module either. Regarding hoses I bought the fittings and the hose material as well as a crimper online and made my own. I am not sure if this route cost more or less than taking it to a shop but it was easy to do. For the condenser I used a universal 16 x 21 parallel flow condenser with a 16" electric fan for cooling. So far I am happy with the results. Likely based on others experience I need to add insulation to the cab.

 

[DiverDarrell]

The PS Mag for the charge weight is 2015 issue 751 pages 44-45

here is a link to the issue http://psmag.radionerds.com/index.php/751

since I'm already adding sound insulation, I guess it's a good time to add some thermal as well. That giant window doesn't help things.

 

[NDT]

Do an advanced search for "pulley" in the FMTV forum, look for a thread started by me, in it is a post with the parts list.

 

[scottmandu]

I've got the factory tensioners as well as the main pulleys.