A/C Clutch Wheel Alignment Issue

Reply Subscribe

Thread Tools

Search this Thread

Oct 4, 2017 | 11:01 AM

1974xlt

Thread Starter

Junior User

Joined: Jul 2013

Posts: 90

Likes: 0

A/C Clutch Wheel Alignment Issue

The original factory A/C compressor on my '74 F250 with a 460 had seized up. But the replacement compressor's clutch wheel turned out to be about half an inch too forward of the rest of the pulleys. I ordered a dealer installed clutch wheel and it was half and inch too short of alignment of the pulleys. Finally I ordered a clutch wheel with an inertia ring like the original had but was back to too forward. Does anyone have a solution to this problem? I'm out of ideas.

Oct 4, 2017 | 12:51 PM

willowbilly3

Post Fiend

Joined: Jun 2003

Posts: 8,209

Likes: 12

From: Black Hills of SD

It seems somewhere back in the cobwebs that you only press them on until the pulleys line up.

Oct 4, 2017 | 09:34 PM

1974xlt

Thread Starter

Junior User

Joined: Jul 2013

Posts: 90

Likes: 0

Thanks for your reply, but the compressor shaft is coned shaped with a wood rift key. The clutch wheel just seats on it, it doesn't press on.

Oct 4, 2017 | 09:52 PM

orangeford

Laughing Gas

Joined: Aug 2000

Posts: 1,007

Likes: 65

From: Eastern, Idaho

Had the same problem with my 460 swap. Get a clutch for a 460 for a 75 and earlier without the inertia ring and factory ac . Seems they didn't have them on truck applications until the 77-79 maybe. There are at least 3 variations of belt sheave depth on these things on a ford alone in the 73-79 era.

Oct 4, 2017 | 10:09 PM

1974xlt

Thread Starter

Junior User

Joined: Jul 2013

Posts: 90

Likes: 0

Thanks for the reply, but I started with a replacement factory '74 non inertia wheel and that was too forward of the pulleys. Should I try older?

Oct 5, 2017 | 06:09 AM

Ozzie H.

Laughing Gas

Joined: Nov 2013

Posts: 1,207

Likes: 60

From: S.E. Louisiana;so far USA

I had a similar problem when I searched for one for my '76 F-250, 460, factory air. The one I need may be the Four Seasons 47811 (new) or 48811 (reman.) It looks like:

And has
Part Specifications

Belt Type:V-Belt
Belt Width "IN":0.500
Can Size:w/ Coil
Coil Voltage:12 Volt
Coil?:w/ Coil
Color:Gold
Connector Type:Butt Connector
Description:Clutch Assemblies - New
Groove:1 Groove
Lead Wire:Lead Wires
Material:Steel
Meets or Exceeds OEM Specs?:Yes
New or Remanufactured:Clutch Assemblies - New
Style:206, 209, 210, HG850, HG1000
Type:York & Tecumseh
Clutch Dia. "IN" Primary:6.000
Mount Distance "IN":2.625

Pay attention to the "mount distance". It is the offset of the pulley groove.

I never found out if it was the right clutch. I reused the old one. But it sure looks like the one that's on there.