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Globespotter
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Joined: February 16, 2012
Posts: 1770
Location: Newmarket, ON
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Wasted youth
Samba Member
Joined: July 06, 2012
Posts: 5134
Location: California's Hot and Smoggy Central Valley
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 Posted: Sat Jan 13, 2018 2:27 pm Post subject: Re: Loose alternator bolt? |
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The bolt that anchors to this nut? (Photo credit: hazetguy)... or the lower bolt that is underneath the engine? Neither should have any movement in my opinion.
Last edited by Wasted youth on Sat Jan 13, 2018 2:30 pm; edited 2 times in total |
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rottenkid
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Joined: June 19, 2015
Posts: 236
Location: Warkworth, ontario
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| Posted: Sat Jan 13, 2018 2:28 pm Post subject: Re: Loose alternator bolt? |
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| It should be tight. I believe I used a carriage bolt when I put mine together. So that hexbolt should be tight. |
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timvw7476
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Joined: June 03, 2013
Posts: 2196
Location: seattle
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| Posted: Sat Jan 13, 2018 2:28 pm Post subject: Re: Loose alternator bolt? |
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Everything is supposed to be tight, as in the slider bolt arrangement
& the carriage bolt, (it's indexed by the alternator tin, nut is near the sump
fill tube) |
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rottenkid
Samba Member
Joined: June 19, 2015
Posts: 236
Location: Warkworth, ontario
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| Posted: Sat Jan 13, 2018 2:29 pm Post subject: Re: Loose alternator bolt? |
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| You are referring to the lower bolt? And not the bolt that adjust the fan belt. |
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Globespotter
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Joined: February 16, 2012
Posts: 1770
Location: Newmarket, ON
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Amskeptic
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Joined: October 18, 2002
Posts: 8568
Location: All Across The Country
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| Posted: Sat Jan 13, 2018 5:24 pm Post subject: Re: Loose alternator bolt? |
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| Globespotter wrote: |
| The bolt accessed in the engine compartment behind the oval plastic cover. |
That bolt should be secure. The nut that holds the bracket to the fan housing above that bolt is also supposed to be secure. The carriage bolt that holds the bottom of the alternator to the fan housing via a stamped metal bracket is supposed to be secure via 13mm nut accessible from underneath. The two 13mm bolts that hold that alternator pivot bracket to the fan housing need to be secure.
I am running into some real issues with these poor engines getting killed by cracks through all of the above, plus the alternator face tin, when they loosen or when people run an obviously imbalanced engine. These parts are drying up. We have to keep them happy.
Colin
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Globespotter
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Location: Newmarket, ON
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Wildthings
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Joined: March 13, 2005
Posts: 50332
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| Posted: Sun Jan 14, 2018 5:50 pm Post subject: Re: Loose alternator bolt? |
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| If the pivot bolt has been loose for long, there is a good chance the holes will have wallowed out by now and the alternator pulley no longer lining up well with the pulley on the crank. |
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Globespotter
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Joined: February 16, 2012
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Location: Newmarket, ON
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SGKent 
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Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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| Posted: Mon Jan 15, 2018 12:42 pm Post subject: Re: Loose alternator bolt? |
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the bottom U-bracket cracks then the shroud wears where it wiggles and destroys the mount point.
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Globespotter
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Joined: February 16, 2012
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Location: Newmarket, ON
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50332
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| Posted: Mon Feb 19, 2018 2:50 pm Post subject: Re: Loose alternator bolt? |
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| The nut and bolt are pretty basic, unless the bolt is too long and has an unthreaded section I can see how it could not tighten sufficiently. Maybe all you would need to do is add a couple of extra washers under the head? |
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lil-jinx
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Joined: August 14, 2013
Posts: 1109
Location: New Brunswick,Canada
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| Posted: Mon Feb 19, 2018 6:01 pm Post subject: Re: Loose alternator bolt? |
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Would it be possible that the adjusting arm that special nut rides in has worn thinner then the portion of the nut that sits in the slot so when you clamp it down tight it just bottoms on the nut and not the arm,allowing it to move.
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timvw7476
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Joined: June 03, 2013
Posts: 2196
Location: seattle
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| Posted: Mon Feb 19, 2018 7:57 pm Post subject: Re: Loose alternator bolt? |
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There are two bolts holding the lower pivot point as well,
if the sliding upper adjustment is left loose/incorrect for long, that lower
mount does get beaten loose from the blower shroud.
Time to check all mounting points, six total. |
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Globespotter
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Location: Newmarket, ON
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lil-jinx
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Globespotter
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Location: Newmarket, ON
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SGodinho
Samba Member
Joined: August 30, 2019
Posts: 25
Location: Longview WA
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| Posted: Sun Nov 17, 2019 7:50 pm Post subject: Re: Loose alternator bolt? |
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| I'm looking for the bolt that is #19 in the diagram. Anyone know what size it is? I can't find it for the life of me. |
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ivwshane
Samba Member
Joined: May 19, 2011
Posts: 1920
Location: Sacramento ca
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| Posted: Sun Nov 17, 2019 10:22 pm Post subject: Re: Loose alternator bolt? |
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| SGodinho wrote: |
| I'm looking for the bolt that is #19 in the diagram. Anyone know what size it is? I can't find it for the life of me. |
021903243a
***edit
It looks like I can’t read:( you are asking about the bolt not the nut.
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Last edited by ivwshane on Mon Nov 18, 2019 5:39 am; edited 1 time in total |
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