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Old 06-07-2014, 01:22 PM   #1
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Belt jack?

I saw on this forum, I think, a item called a belt jack, designed to adjust & hold belt tension when replacing or adjusting belts but can't find one. There was a referral to he company that made this product. Numerous queries on google yield no results. Anyone know where to get one?
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Old 06-07-2014, 02:16 PM   #2
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Try searching for "Pulley Spreader" I believe that is what you are looking for
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Old 06-07-2014, 03:08 PM   #3
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In a pinch you can make one out of a couple of chunks of wood and a hardware store turnbuckle.
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Old 06-07-2014, 03:17 PM   #4
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In a pinch you can make one out of a couple of chunks of wood and a hardware store turnbuckle.
I made one from a turnbuckle. No chunks of wood though.
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Old 06-07-2014, 04:22 PM   #5
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Are you trying to adjust the belt tension via your alternator?
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Old 06-08-2014, 07:51 AM   #6
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Are you trying to adjust the belt tension via your alternator?
I believe the tool he's looking for goes between two pulleys and you screw it apart to move the pulleys apart and increase the belt tension.

Before I made mine I searched the Internet and couldn't find one. I still cant.
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Old 06-08-2014, 08:29 AM   #7
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Larry, I like that - will do some measuring.

Rwidman, picture please.
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Old 06-08-2014, 09:14 AM   #8
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Larry, I like that - will do some measuring.

Rwidman, picture please.
Thanks. Here's the other alternator. I had to cut one of the jaws down to clear the water pump.
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Old 06-08-2014, 09:39 AM   #9
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Rwidman, picture please.
This started life as a turnbuckle from the hardware store. I took the ends (eyes) out and flattened them in a vise with a hammer so they would stay in the pulley groves. Measure between your pulleys to figure out what size turnbuckle to get.

Put it between the pulleys and turn the center to expand the tool and move the pulleys apart.
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Old 06-08-2014, 10:06 AM   #10
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Here is a place listing them for sale
Belting Accessories | MSCDirect.com
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Old 06-08-2014, 10:10 AM   #11
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Here is a place listing them for sale
Belting Accessories | MSCDirect.com
You are a better snoop than I am!

Yep, that is the tool. You have to read the reviews to find the working range.
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Old 06-08-2014, 10:26 AM   #12
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Larry and Ron,

Great ideas!! Thanks for the pics.
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Old 06-08-2014, 10:30 AM   #13
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I've always used one of these 18-24" long.
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Old 06-08-2014, 01:39 PM   #14
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I've always used one of these 18-24" long.
Yes I was about to post the same. Or as Spy wrote "In a pinch you can make one out of a couple of chunks of wood and a hardware store turnbuckle."

I've never heard of a belt jack. Great idea though. Something in me says it's kinda like Aqua Drives, synthetic oil, brand name engines, twin engines, high tech anchors and many other things. I like it all except syn oil in NA engines.

But the thing I like about this is that it's something anybody can do to make things better. Good idea.
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Old 06-08-2014, 03:14 PM   #15
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Quote:
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I've always used one of these 18-24" long.


The problem with that is, you often don't have room to use it on a boat.
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Old 06-08-2014, 04:52 PM   #16
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Thanks all, for the assistance. If I can't put one together, I can contact mscdirect.
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Old 06-08-2014, 08:57 PM   #17
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Turnbuckle alternator adjusters - great idea.

I've had one of the tools since about 1980. Dozen or more engines and I don't use it.

The adjustable mounting arm.......where can I get one for a Sabre 80? That is surely the way to tackle that task, unless I'm missing something. Any down side?
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Old 06-09-2014, 08:06 AM   #18
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Balmar UBB Universal Adjustment Arm with Belt Buddy Tensioner
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Old 06-09-2014, 08:46 AM   #19
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I like it!
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Old 06-09-2014, 11:25 AM   #20
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Here is a place listing them for sale
Belting Accessories | MSCDirect.com
Had one for years. Works great in tight spots. Gave it to a friend when I sold my last inboard boat. Thanks for the reminder to pick one up.
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