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Heads up on Alternator replacements.

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Alternator re-builds missing lock nuts on case bolts.

My LLW Alternator that I replaced just had a semi-failure.
One of the Case screws that hold the body together had a strippage from the re-builder the lower one you could hardly see.
One of the Case screws backed out due to strippage and started to hit the Alternator fan.
A 4.5mm Nut wasn't replaced on the screw on the back, so I added 3 more to prevent this from happening to the remaining bolts as I had one on the case for ground.

So if you get a replacement alternator, be sure that you use 4.5 mm nuts and lock washers to the back of the case bolts to prevent this from happening to you.

missing nuts.


What do Divorces, Great Coffee, and Car Electrics all have in common?

They all start with GOOD Grounds.

Where are my DIY Links?

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is this on your own vehicle mate

Do not know a lot but willing to help if possible

1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF

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nicci21paul said

is this on your own vehicle mate

Yes the Alternator was on my own car, and the photo is of one on my other cabby.  The above photo was on a thread that I did on how I take my alternator/waterpump/a/c compressor off my car.. It wasn't that the main power cable didn't have a nut.. I was showing the case bolt that didn't have a nut on the back side….

What do Divorces, Great Coffee, and Car Electrics all have in common?

They all start with GOOD Grounds.

Where are my DIY Links?

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Heads up on Alternator replacements.

Just checked and I don't have any nuts on mine

Sent from my SM-G955U1 using Tapatalk

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One secures a rubber P clip, the other one is for the wiring.  I think 13mm nut normally has a plastic cap (or it does on my Mk2 Golf) but don't know if it applies to the Mk1s.
Also having done a Nissan Micra alternator recently check if it has the black plastic  cap end that all the securing screws are in it. This one was missing two screws.

Last edit: by Vic

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