Thanks
Alternator securing bolt
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Alternator securing bolt
Hello there, it's not quite electrical but not sure where else to put it! I was trying to tighten the aux belt the other day, but couldn't get the bolt that attaches to the slide bracket to tighten up very well. On inspection the square part of the head isn't particularly square any more, the corners have rounded off - does anyone know where I can get a replacement from and what I should be asking for?
Thanks
Thanks
1984 T25 1.9 DG
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itchyfeet
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Re: Alternator securing bolt
Bolts are not square headed they are hexagonal 
it's a standard M8 bolt, is it the one that tightens into the thread in the alternator? If so it can be a bit longer with no trouble.
it's a standard M8 bolt, is it the one that tightens into the thread in the alternator? If so it can be a bit longer with no trouble.
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Oldiebut goodie
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Re: Alternator securing bolt
Square headed alternator bolts sit in a recess to stop them turning - they are undone solely by the nut on the other end.(yes, you can get square headed bolts)This is the type of bolt that is used http://www.ebay.co.uk/itm/BSF-SQUARE-HE ... 2a343ce0bc
1.6D 2019 VW T-Cross
200hp VW T6
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5̶0̶8̶d̶ ̶M̶e̶r̶c̶
200hp VW T6
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Sir Brixalot
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Re: Alternator securing bolt
Should the other long bolt have a nut on it. On mine the bolt was pushed through only.
Honorary "Dave"
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Oldiebut goodie
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Re: Alternator securing bolt
It depends upon the alternator - some just screw into a thread in the alternator, some go all the way through and have a nut. It is just a pivot bolt and has to allow the alternator movement to adjust the tension. It doesn't hold the alternator in its tension position, that is the function of the (square headed) bolt which clamps the alternator against the slotted arm.
1.6D 2019 VW T-Cross
200hp VW T6
1̶Y̶ ̶1̶9̶8̶7̶ ̶H̶i̶-̶t̶o̶p̶ ̶C̶a̶r̶a̶v̶e̶l̶l̶e̶
5̶0̶8̶d̶ ̶M̶e̶r̶c̶
200hp VW T6
1̶Y̶ ̶1̶9̶8̶7̶ ̶H̶i̶-̶t̶o̶p̶ ̶C̶a̶r̶a̶v̶e̶l̶l̶e̶
5̶0̶8̶d̶ ̶M̶e̶r̶c̶
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itchyfeet
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Re: Alternator securing bolt
Something learned, just never seen a square headed bolt on a T25 alternator
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itchyfeet
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Re: Alternator securing bolt
Yeh long hinge bolt has a nut on it.flyinghitop wrote:Should the other long bolt have a nut on it. On mine the bolt was pushed through only.
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bigherb
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Re: Alternator securing bolt
You can get them from Heritage VW classic parts 059 903 285 £1.21
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Sir Brixalot
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Re: Alternator securing bolt
Cheers guys. Sitting on top of the engine was a larger nut and washer, probably put aside by someone in the past meaning to get a smaller one then forgotten. Got bigger things to worry about now as my engine has started making a horribly familiar noise that has proved terminal in the past. NOT YET ANOTHER ENGINE FAILURE! 
Honorary "Dave"