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 Alternator belt replacement

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GuzziSteve
BigTime
Matias
Buellbloke
Gouldy1411
lcjohnny
gerrit
Kiwi_Roy
JohnA
eeyore
paulbrice
BrianD
Pete Roper
Dave R
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GuzziSteve
Fra Cristoforo
Fra Cristoforo
GuzziSteve


Posts : 767
Join date : 2016-04-14

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Thu Mar 21, 2024 1:14 pm

I measured the one at work then made my own, works great.

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Matias
Biondino
Biondino
Matias


Posts : 283
Join date : 2021-08-19

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Thu Mar 21, 2024 2:34 pm

Hi Steve,
If you have the plans please share with the tribe Very Happy...
Most of it would be feasible for me....The bit with the small squared hole comes from a socket, right? The hexagonal hole is from a socket slice too, I believe...
The angle between the two sections is important or can you use the device with different angles?

I have also considered using a small dinamometer/scale to pull the current belt and measure the force needed to displace it some mm (10~20mm), and replicate the conditions in the new one...I guess too tight will be worse than too loose....Too tight can kill the alternator shaft bearing, too loose maybe you could hear it slipping...
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Pete Roper
GRiSO Capo
GRiSO Capo
Pete Roper


Posts : 10415
Join date : 2013-05-29
Age : 67

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Thu Mar 21, 2024 5:01 pm

I have the tool in my toolbox and have used it precisely once! Since then I simply do it by feel and how much effort it takes to twist the belt through 90 degrees. If you have any experience tensioning belts it's really a no-brainer.
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Matias
Biondino
Biondino
Matias


Posts : 283
Join date : 2021-08-19

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Fri Mar 22, 2024 12:02 am

Yes Pete, but you have calibrated fingers,😁....
I changed a couple of belts in cars...Maybe I'll try it...
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JohnA
GRiSO Capo
GRiSO Capo
JohnA


Posts : 721
Join date : 2015-01-13
Age : 67

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Fri Mar 22, 2024 6:20 am

Would be great to see a Pete video on this someday. I’ve watched the throttle body one way more than once. Probably hard to get a camera in there…..
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paulbrice
GRiSO Capo
GRiSO Capo
paulbrice


Posts : 1471
Join date : 2015-01-04
Age : 63

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Fri Mar 22, 2024 6:57 am

I'm in the 90 degree twist camp....growing up (mainly Ford escort MK 2/3/4s) that was always the 'rule' .........slacken the alternator bolt - put length of wooden batten down to floor and lever the alternator casing - alter lever until approx 90 degrees twist - tighten alternator bolt.....& I already have too many 'special tools'
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GuzziSteve
Fra Cristoforo
Fra Cristoforo
GuzziSteve


Posts : 767
Join date : 2016-04-14

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Fri Mar 22, 2024 7:15 am

Matias wrote:
Hi Steve,
If you have the plans please share with the tribe Very Happy...
Most of it would be feasible for me....The bit with the small squared hole comes from a socket, right? The hexagonal hole is from a socket slice too, I believe...
The angle between the two sections is important or can you use the device with different angles?

I have also considered using a small dinamometer/scale to pull the current belt and measure the force needed to displace it some mm (10~20mm), and replicate the conditions in the new one...I guess too tight will be worse than too loose....Too tight can kill the alternator shaft bearing, too loose maybe you could hear it slipping...


Yes, when I get down to toolbox, I'll measure centers. Have to change bandage on cheek 1st from Mohs surgery. Had some Basil Cell cancer removed. Size of a quarter. Haven't seen the fix yet. I'll be back.
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Matias
Biondino
Biondino
Matias


Posts : 283
Join date : 2021-08-19

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Fri Mar 22, 2024 11:04 am

GuzziSteve wrote:

Yes, when I get down to toolbox, I'll measure centers. Have to change bandage on cheek 1st from Mohs surgery. Had some Basil Cell cancer removed. Size of a quarter. Haven't seen the fix yet. I'll be back.

Yes Steve, all this can wait....Best wishes of a quick recovery
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Matias
Biondino
Biondino
Matias


Posts : 283
Join date : 2021-08-19

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Fri Mar 22, 2024 11:14 am

paulbrice wrote:
I'm in the 90 degree twist camp....growing up (mainly Ford escort MK 2/3/4s) that was always the 'rule' .........slacken the alternator bolt - put length of wooden batten down to floor and lever the alternator casing - alter lever until approx 90 degrees twist - tighten alternator bolt.....& I already have too many 'special tools'

Paul, I'm not sure I'm getting this right....
The part about levering the alternator up to tension the belt I get it....
The 90º technique means that with the right tension you should be able to rotate the belt (lenght between the pulleys) 90º with your fingers without a major effort (this is at least what I understood from Pete's post).

Is this right?
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rick pope
GRiSO Capo
GRiSO Capo
rick pope


Posts : 682
Join date : 2019-08-17
Age : 70

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Fri Mar 22, 2024 3:00 pm

The 90 degree twist test is all well and good, providing the distance between the pulleys, and the size/design of the belt are the same, or nearly so. Comparing a GRiSO to a Ford is apples to oranges.

Usually, a belt is tensioned by "x" amount of push in the middle of the belt resulting in a certain measure of deflection. For example, 10# of force nets 1/2" deflection. Of course, that's the Murican numbers......
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Pete Roper
GRiSO Capo
GRiSO Capo
Pete Roper


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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Fri Mar 22, 2024 3:55 pm

The V100 uses a really short, wide belt and it certainly wouldn't pass the 90* test but even so the factory suggestion you use a meter and tension it by harmonic seems a bit like overkill. I know it's how certain Ducati cam belts are supposed to be tensioned but I have to wonder how many are?
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beetle
GRiSO Capo
GRiSO Capo
beetle


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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Fri Mar 22, 2024 4:22 pm


I use harmonic tensioning on gear at work. It works surprisingly well.




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Pete Roper
GRiSO Capo
GRiSO Capo
Pete Roper


Posts : 10415
Join date : 2013-05-29
Age : 67

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Fri Mar 22, 2024 6:09 pm

Oh I'm sure it does. I'm just a bit skeptical about how many shops would have one or use it regularly. Just colour me cynical.... Twisted Evil
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sideshowbob
GRiSO Capo
GRiSO Capo
sideshowbob


Posts : 1099
Join date : 2017-08-06
Age : 69

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Fri Mar 22, 2024 6:20 pm

Last Ducati I did, I used a frequency app on my phone. Worked surprisingly well. But you need the spec.
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GuzziSteve
Fra Cristoforo
Fra Cristoforo
GuzziSteve


Posts : 767
Join date : 2016-04-14

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Fri Mar 22, 2024 7:05 pm

I'm Back, OK the center to center point on tool halves is 80mm

Half #1 is 3/8" adapter to 19mm 6 point socket slice, face side
Half #2 is 19mm nut to 1/2'' socket end, back side
Half #2 is 3/4" solid rod to 24mm socket, face side

AND I have a 1 3/4" slice on my cheek from just under eye to bottom of nostril, most follows crease on side of nose. HOLY SHIT The hole she dug was size of a quarter(US)
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lcjohnny
GRiSO Capo
GRiSO Capo
lcjohnny


Posts : 1447
Join date : 2016-01-25
Age : 68

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Sat Mar 23, 2024 1:11 am

GuzziSteve wrote:
I'm Back,   OK the center to center point on tool halves is 80mm
I have a 1 3/4" slice on my cheek from just under eye to bottom of nostril, most follows crease on side of nose. HOLY SHIT  The hole she dug was size of a quarter(US)

You don't want pussyfoot surgery with basal cell Ca

Best wishes for recovery
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Matias
Biondino
Biondino
Matias


Posts : 283
Join date : 2021-08-19

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Sat Mar 23, 2024 2:29 am

GuzziSteve wrote:
I'm Back,   OK the center to center point on tool halves is 80mm

Half #1 is 3/8" adapter to 19mm 6 point socket slice, face side
Half #2 is 19mm nut to 1/2'' socket end, back side
Half #2 is 3/4" solid rod to 24mm socket, face side

AND I have a 1 3/4" slice on my cheek from just under eye to bottom of nostril, most follows crease on side of nose. HOLY SHIT  The hole she dug was size of a quarter(US)

Thank you very much Steve.

Better safe than sorry.... Esse
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Street
L'Innominato
L'Innominato
Street


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Age : 64

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Sat Mar 23, 2024 8:14 am

Best wishes for a speedy recovery, Steve!

Pete

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GuzziSteve
Fra Cristoforo
Fra Cristoforo
GuzziSteve


Posts : 767
Join date : 2016-04-14

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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1Sat Mar 23, 2024 8:28 am

Thanks Steve, didn't know anything till few weeks ago, just stopped in to renew a script. I wonder how long it was there, last I was at the dermatologist was 2yrs.
Big surprise when I saw the cut, just call me Capone.
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PostSubject: Re: Alternator belt replacement   Alternator belt replacement - Page 2 Icon_minitime1

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» Alternator belt replacement
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