 Help on tightening the alternator belt!, What's the trick? There must be a trick! |
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| mobymutt |
 May 25 2018, 04:36 PM
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#1
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Senior Member  Group: Members Posts: 550 Joined: 16-December 13 From: Kingston, Ontario, Canada Member No.: 16,770 Region Association: Canada  |
On-going alternator belt issue...
Put my old belt back on (shorter than my new belt that kept falling off, hmmm), but I am still having a massively hard time tensioning it! I can't really yank on the pulley very hard, and certainly can't tighten the screws while doing that. I don't see a jack screw anywhere. So what's the trick? |
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| Cairo94507 |
May 25 2018, 05:07 PM
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#2
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Michael Group: Members Posts: 9,758 Joined: 1-November 08 From: Auburn, CA Member No.: 9,712 Region Association: Northern California 
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I could be wrong, but I think it is shims on the pulley. (IMG:style_emoticons/default/beerchug.gif)
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| rhodyguy |
May 25 2018, 05:20 PM
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#3
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,080 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
It's possible the bottom bracket or the arm the alt slides along are broken at the attachments points. I had a chirp when the engine was running and the alt belt would go loose immediately. Iirc it was the bottom bracket.
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| Cairo94507 |
May 25 2018, 05:26 PM
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#4
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Michael Group: Members Posts: 9,758 Joined: 1-November 08 From: Auburn, CA Member No.: 9,712 Region Association: Northern California
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OOOPPPS, 4 cylinder car. Sorry.
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| mobymutt |
May 25 2018, 06:06 PM
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#5
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Senior Member Group: Members Posts: 550 Joined: 16-December 13 From: Kingston, Ontario, Canada Member No.: 16,770 Region Association: Canada |
QUOTE(rhodyguy @ May 25 2018, 07:20 PM)  It's possible the bottom bracket or the arm the alt slides along are broken at the attachments points. I had a chirp when the engine was running and the alt belt would go loose immediately. Iirc it was the bottom bracket. I think those are ok, I just can't figure out how to pull the belt tight. |
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| Mark Henry |
May 25 2018, 08:32 PM
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#6
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Did you also loosen the pivot bolt?
I've had to get under the car and pry the alt back and forth a few times to loosen it enough to slide easy. Don't loosen the adjuster bolt too much, it's a bitch to get back in. |
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| iankarr |
May 25 2018, 10:10 PM
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#7
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The wrencher formerly known as Cuddy_K Group: Members Posts: 2,473 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region
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As Mark said, first make sure the pivot bolt is loose enough to allow the alt to easily move. Then remove the plastic oval cover facing you, stick a long screwdriver or socket exctension in the hole and lever it against the alt while you tighten the adjuster.
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| mobymutt |
May 27 2018, 08:34 AM
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#8
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Senior Member Group: Members Posts: 550 Joined: 16-December 13 From: Kingston, Ontario, Canada Member No.: 16,770 Region Association: Canada |
QUOTE(cuddy_k @ May 26 2018, 12:10 AM) As Mark said, first make sure the pivot bolt is loose enough to allow the alt to easily move. Then remove the plastic oval cover facing you, stick a long screwdriver or socket exctension in the hole and lever it against the alt while you tighten the adjuster. To be clear, I am levering against the slot in the tin? Seems a bit iffy, but I'll give it a go! |
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| Dave_Darling |
May 27 2018, 05:52 PM
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#9
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914 Idiot Group: Members Posts: 14,985 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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Do not lever against the engine tin unless you want to bend it.
There are two plastic covers over two slots in the engine tin; one on front and one on the side. The front one covers up the pinch bolt. The side one lets you push down on the outer ear of the alternator where the pinch bolt threads in. So that's what you do, use a screwdriver or a socket extension or something to push the outer end down while tightening the pinch bolt through the other slot. --DD |
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| mobymutt |
May 27 2018, 06:18 PM
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#10
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Senior Member Group: Members Posts: 550 Joined: 16-December 13 From: Kingston, Ontario, Canada Member No.: 16,770 Region Association: Canada |
QUOTE(Dave_Darling @ May 27 2018, 07:52 PM) Do not lever against the engine tin unless you want to bend it. There are two plastic covers over two slots in the engine tin; one on front and one on the side. The front one covers up the pinch bolt. The side one lets you push down on the outer ear of the alternator where the pinch bolt threads in. So that's what you do, use a screwdriver or a socket extension or something to push the outer end down while tightening the pinch bolt through the other slot. --DD Ah, thanks! |
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