Alternator brackets

Technical Question and Answer - On topic to 71-74 Plymouth B-bodies only.

Moderator: Site Administrators

Post Reply
BillS
Satellite Coupe (RL)
Posts: 13
Joined: Sat Aug 26, 2006 3:59 pm
My Cars: 74 Road Runner

Alternator brackets

Post by BillS » Fri Aug 01, 2008 10:15 pm

I'm in the process of putting a '72 440 HP in my '74. Does anynoe have a tech print or drawing of how the alternator brackets are setup? All my stuff was in boxes. A second question: how/where does the vapor separator mount near the fuel pump?

landon1
GTX (RS)
Posts: 1394
Joined: Tue Dec 27, 2005 10:22 pm
My Cars: 1971 Plymouth Satellite Sebring
Location: Colfax, IA

Post by landon1 » Fri Aug 01, 2008 10:44 pm

maybe you can get something out of this - if nobody else posts, i can get some better pics tomorrow - basically, though, the curved piece goes on the bottom, the i guess "T"shaped piece is on top, then there is an approx 2.5" spacer taht goes between it and the bolt hole in the head...pretty simple - the power steering brackets had me and my pops stumped for about a half hour, though :lol:

Image

72Rdrnner
GTX (RS)
Posts: 277
Joined: Thu Oct 26, 2006 6:42 am
Location: Bossier City, Louisiana

Re: Alternator brackets

Post by 72Rdrnner » Sun Aug 10, 2008 9:53 pm

BillS wrote:I'm in the process of putting a '72 440 HP in my '74. Does anynoe have a tech print or drawing of how the alternator brackets are setup? All my stuff was in boxes. A second question: how/where does the vapor separator mount near the fuel pump?
Here's a couple of pictures of the brackets on a '72 440 with a/c and power steering. If memory serves me right the idler pulley is only used on engines with a/c as without it the waterpump is driven by the same belt the alternator uses and it's a single belt. I replaced the stock "V Twin" compressor with a Sanden rotary unit but the belts/brackets are the same.

Image

Image


The vapor separator mounts on the front bolt of the fuel pump. I don't have a pix of that handy, but will try and remember to get one tomorrow and post it here.
Image

Righteous One Owner '72 Roadrunner

SureGrip
GTX (RS)
Posts: 143
Joined: Sat Mar 20, 2004 11:04 pm
My Cars: 71 SSP....lots of parts
Location: Central Md.

Re: Alternator brackets

Post by SureGrip » Sat Jun 11, 2011 8:09 pm

Sorry this is such a late bump, but it's odd to see that layout.

I have a '71 with 440 (it's a '75 block and a mix of parts) but it has A/C and PS on it and there is one belt that goes around the crank, A/C pulley, and alternator, there is another belt that runs around the waterpump, crank and PS pulley.

I was told that if you don't have A/C, you need to mount the PS pump up higher on the block to take the place of the A/C compressor.

:?
One day - 1971 Road Runner clone

72Rdrnner
GTX (RS)
Posts: 277
Joined: Thu Oct 26, 2006 6:42 am
Location: Bossier City, Louisiana

Re: Alternator brackets

Post by 72Rdrnner » Mon Jun 13, 2011 9:09 am

SureGrip wrote:Sorry this is such a late bump, but it's odd to see that layout.

I have a '71 with 440 (it's a '75 block and a mix of parts) but it has A/C and PS on it and there is one belt that goes around the crank, A/C pulley, and alternator, there is another belt that runs around the waterpump, crank and PS pulley.

I was told that if you don't have A/C, you need to mount the PS pump up higher on the block to take the place of the A/C compressor.

:?
Hmmm....that is an odd one. How many pulleys do you have on your crankshaft? My engine has 4, which is the way it came. (I know, I bought the car new). The outermost (to the front) pulley almost looks like it has been added as the other three pulley groves are in a single large pulley. It might be that your engine (or crank, or crank pulley) may not have been on an original 440 with a/c and p/s. Another thought, there is a 440 and a high performance 400. There is a pad on the front left top of the block that will have "HP" on it for the high performance engines. Just a thought but that might be the difference, although I don't know that for sure.
Image

Righteous One Owner '72 Roadrunner

SureGrip
GTX (RS)
Posts: 143
Joined: Sat Mar 20, 2004 11:04 pm
My Cars: 71 SSP....lots of parts
Location: Central Md.

Re: Alternator brackets

Post by SureGrip » Tue Jun 14, 2011 12:14 am

Yeah, this motor is a mutt of all sorts of parts from all different years, but they routed the belts as I mentioned. it's a 1975 440 block, standard, non-HP.

I do have the 4-groove crank pulley, the forward-most 2 of them have no belts, the AC/alternator is running off groove 3, PS belt is running off groove 4 (rear-most groove).

I have a monstorous 100amp alternator mounted at the same height as the AC pulley.

I have the feeling that, after counting all the different alternator/PS pump/AC compressor/Water pump combos out over the years, there are as many different combos as there are stars in the sky. :lol:
One day - 1971 Road Runner clone

72Rdrnner
GTX (RS)
Posts: 277
Joined: Thu Oct 26, 2006 6:42 am
Location: Bossier City, Louisiana

Re: Alternator brackets

Post by 72Rdrnner » Tue Jun 14, 2011 6:49 am

I think being a '75 might make a difference too. There might have been a air pump on it. I don't remember when that came to being as mine had minimal "emissions" stuff. As you can see on mine the rear two belts drive the a/c and alternator. With the p/s next forward and the water pump (with idler pulley) on the front one.

Just another star in the galaxy!
Image

Righteous One Owner '72 Roadrunner

Post Reply