Pulleys and Brackets

duo_z · May 31, 2011

So I'm trying to figure out what I want to do about pulleys and I have a few questions. My engine came with a 3 groove crank pulley and no belts. What are they all for? As far as I know I have the alt, water, and AC. I figured the alt and water pump both use the same belt. Which leaves another one for the AC, so whats the third for. Next question is I have an alternator bracket that has an idler pulley on it (pic included). What was that for?

Loup-garou · May 31, 2011

That circled part is the A/C belt upper idler pulley (Ford added a second idler, just below the compressor and above the PS pump).

My 65 289 with A/C and power steering has a 3-sheave crankshaft pulley. The sheave closest to the engine is the alternator belt, the middle sheave is for the power steering belt, and the one closest to the radiator is for the wider and deeper AC belt. Non-PS cars may have run double belts around the alternator and water pump, I can't recall.

2+2GT · May 31, 2011

Loup-garou said:
Non-PS cars may have run double belts around the alternator and water pump, I can't recall.

Nope. AC non-PS cars simply didn't use the middle sheave on the crank pulley or the front sheave on the water pump pulley.

duo_z · Jun 2, 2011

So a standard March pulley and bracket kits should work fine then?

Loup-garou · Jun 3, 2011

What accessories did you plan on running - A/C? Power Steering? Or just the bare bones alternator and water pump?

Which March parts are you looking at?

duo_z · Jun 3, 2011

I'm running alt, water pump, and A/C. I was just looking at a stock v-belt set of March pulleys.

Loup-garou · Jun 11, 2011

Which March part numbers are you looking at?

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