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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

motor pulleys

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Old Apr 8, 2008 | 11:34 PM
  #1  
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motor pulleys

Ok, I have my motor in, just doing some finishing touches and getting a list of things I need from NAPA tomorrow. I'm picking up a carter carb this weekend, and then I will start figuring out the vacuum lines. In the process of putting on the power steering pump, it came to my attention the pulleys are set up different on the 73ish 390 than what the 68 360 has. As I see it, I have two options. Put spacers behind the bolts on the power steering bracket, or pull the pulleys off of the 360.

Here are the questions:
What's the best option?
I know they are the same block, but are the pulleys interchangeable?
Was there a different mounting bracket around 73 that would fix my problem

One more question. It appears the starter on the 360 i pulled out had a spacer on it. I'm not really sure, I found it on the ground and that's what it looks like. Is there a spacer that goes on the starter. Thanks for all your help.
 
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Old Apr 9, 2008 | 04:16 AM
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Bill will know for sure, but I think you are dealing with a car and a truck bracket. From my prospective it shouldn't matter. The blocks are the same, and some brackets require different spacers. You just have to make it work out.


John
 
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Old Apr 9, 2008 | 08:43 AM
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I don't know the origin of the 360 that was in the turck, but i do know the 390 came out of a truck. The bracket I'm using is from the 360.
 
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Old Apr 9, 2008 | 11:21 AM
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The 360 is a truck only engine, and while you found the 390 in a truck it could have been transplanted. All trucks use the same bracket AFAIK.

You can use either, it shouldn't matter.


Starter on a FE shouldn't need a shim.



John
 
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Old Apr 9, 2008 | 11:56 AM
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so what's my best course of action? Put in spacers or remove the pulleys off of the 360 and intsall them on the 390. The bracket fits correctly, the pulleys are different. On the 360 the pulleys are up next to each other. On the 390 there is about a 1" space inbetween them.

If i have to remove the pulleys, whats the best way with out having an impact wrench. I remember it being a pain in the six side.
 
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Old Apr 9, 2008 | 01:36 PM
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Originally Posted by reifwj
so what's my best course of action? Put in spacers or remove the pulleys off of the 360 and intsall them on the 390. The bracket fits correctly, the pulleys are different.

On the 360 the pulleys are up next to each other. On the 390 there is about a 1" space in between them.
Next to each other? Where, on the crank? That ain't right, because F100/350 360/390 crank pulleys from 1968/76 are the same ones, as is the harmonic balancer.

Cars with 390 engines used many of the same crank pulleys the trucks used. However, 1965/67 is different. Different pulleys, different harmonic balancer than 1968's and later.

ALL the Ford pulleys have ID numbers on them, take a look-see and post what you find. Mebbe you don't really have 360 or 390 pulleys.

How many sheeves (pulley grooves) does the crank pulley have? 1, 2, or 3?

1968/76: You realize of course, that you need to run at least one idler pulley on the engine to get the belts to line up correctly. This was true on both cars & trucks with FE engines.
 
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Old Apr 9, 2008 | 07:16 PM
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pardon the ignorance. What is an idler pulley. Both the 360 and 390 have two groves. I can not find the number on the front of either pulley. the 360 has two groves on one pulley, and the 390 has the spaced ulleys
 
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Old Apr 9, 2008 | 07:27 PM
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Originally Posted by reifwj
pardon the ignorance. What is an idler pulley. Both the 360 and 390 have two groves. I can not find the number on the front of either pulley. the 360 has two groves on one pulley, and the 390 has the spaced ulleys
A small pulley on a short bracket. On some engines, two are required, on others, only one is required.

You need to use the crank pulley with enough sheeves to cover the amount of belts your going to be using.The belt that runs around the w/p pulley goes aroung the pulley that's part of the harmonic balancer.

Pictures say a 1000 words.

I have a suggestion:

Mil1ion has several color pics of his mid 1970's FE equipped Ford truck engine.

Those pics show the belt arrangement and the idler pulleys, you should contact him and ask him to post the pics.
 
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Old Apr 9, 2008 | 07:50 PM
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I have pictures, but i can't figure out how to load them here. do you have an email?
 
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Old Apr 9, 2008 | 07:59 PM
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Originally Posted by reifwj
I have pictures, but i can't figure out how to load them here. do you have an email?
Sending them to me won't help, I don't have anything to compare them with.

You need to contact Dennis (Mil1ion-he's online now - 73/79 forum) and have him post the pics he has.

They show the whole tamale, all the pulleys, including the idler pulley(s) on a FE engine.

Other members that frequent this forum will prolly have the correct yr truck, with pics...the setup is basically the same from 1968/76.

HOWEVER, some 73/76's will be different, because some of those trucks have smog pumps.
 
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Old Apr 9, 2008 | 08:00 PM
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Thanks, i sent him a message.
 
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Old Apr 9, 2008 | 08:17 PM
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here is the 360 pulley
Image of 360 pulley - Photobucket - Video and Image Hosting

here is the 390
Image of 390 pulley - Photobucket - Video and Image Hosting

notice the space in the 390 picture
 
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Old Apr 10, 2008 | 05:24 AM
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I am confused, what zackly is the question?

Belts are usually on adjustable brackets. They need to be in alignment as to not have excessive wear. Load them up, tighten them up and drive on.


John
 
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Old Apr 10, 2008 | 05:40 AM
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Originally Posted by reifwj
It may have come from a 360 or 390 engine, but there's no specific 360/390 pulley, all the FE pulleys are interchangeable, and some were used on other sized engines, as well.

C8AZ-6A312-C .. Double Sheeve Pulley-360/390 ~ Use with P/S = marked: C8AE-6312-C / 8 21/32" large diameter pulley / 6" small pulley diameter / inner pulley uses 3/8" belt, outer pulley uses 5/16" (P/S) belt.

Application: 360/390: 1968/76 F100/350 / 390: 1968/71 Galaxie/LTD/Fairlane/Torino & GT/Mustang & GT / 428/C6: 1968 Galaxie/LTD & Police Cruiser.

D3TZ-6A312-C .. Double Sheeve Pulley-360/390 ~ 6 3/4" diameter / Marked: C8AE-6312-E / Application 360/390: 1973/76 F100/350 / Use without P/S or A/C.

Because there are literally dozens of FE pulleys used from 1958 thru 1976, all are marked.

If not marked, they're prolly not FoMoCo pulleys.
 
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Old Apr 12, 2008 | 09:36 PM
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Bill,
I'm not sure that I understand about the idler pulleys on FE engines. I have a bone stock 69 F250, with a 360, that has one belt on crank/water pump/alternator pulleys and one belt from crank to power steering pump and no idler. My brother has an all original 66 Galaxie 352 with no idler and I had a 67 Country Squire wagon/390 a while back also with no idler. All three of these vehicles use the belts listed at the parts stores and they fit with no idler. Am I missing something here??
Gene
 
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