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Crank pulley question
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rayroc
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PostPosted: Wed Sep 15, 2021 6:01 pm    Post subject: Crank pulley question Reply with quote

The crank pulley I have appears stock however there aren't any grooves/ridges it's smooth. We thought to replace the seal sand seal we're guessing but can't find them seperately. Have to buy a new pulley and bolt on seal together?
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Zundfolge1432 Premium Member
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PostPosted: Wed Sep 15, 2021 6:08 pm    Post subject: Re: Crank pulley question Reply with quote

Friend of mine used to turn down stock pulley for use with sand seal.
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rayroc
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PostPosted: Wed Sep 15, 2021 6:35 pm    Post subject: Re: Crank pulley question Reply with quote

Maybe someone did that to mine gonna look for a part number
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ashman40
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PostPosted: Wed Sep 15, 2021 9:02 pm    Post subject: Re: Crank pulley question Reply with quote

Post a pic of your pulley.

It helps to know where you should be looking. Remove the large bolt holding the pulley to the crank shaft. Note where the woodruff key way is on the ID of the pulley where it mounts to the crank. When the woodruff key slot is at 9-o'clock (as seen from the rear of the car) the TDC mark should line up with the case split.

I wonder if you have an old degree pulley? These were aluminum with "stick on" degree marking ring. Over the years the sticker wears off and you are left with a pulley with no markings.
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AshMan40
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'67 Beetle #1 {project car that never made it to the road Sad }
'75 Beetle 1200LS (RHD Japan model) {junked due to frame rot}
'67 Beetle #2 {2019 project car - Wish me luck!}
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rayroc
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PostPosted: Thu Sep 16, 2021 10:24 pm    Post subject: Re: Crank pulley question Reply with quote

Well it is the stock pulley stamped vw with "D" stamped as well.
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rayroc
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PostPosted: Thu Sep 16, 2021 10:25 pm    Post subject: Re: Crank pulley question Reply with quote

Well it is the stock pulley stamped vw with "D" stamped as well.
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Zundfolge1432 Premium Member
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PostPosted: Fri Sep 17, 2021 7:43 am    Post subject: Re: Crank pulley question Reply with quote

Yes you have a stock pulley that’s been turned down for sand seal. If it is leaking I’d install a new seal and a different pulley because that pulley looks rusted where the belt rides, maybe just lighting or camera angle.yes you can buy pulley and seal by themselves or together. The cheap way out if you have access to a bead blast machine would be clean that old pulley and be sure to tape off that area where the seal contacts the pulley. Do pay attention to where belt rides on pulley or you’ll be eating up belts.

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Here’s the old Santana pulley from the 70s notice it has the stock type grooves that screw the oil back into the engine. The downfall here is whatever sand or shit blowing around also gets screwed into the engine, not really a problem if you drive on the street.
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Front view of Santana pulley notice key way at 9 o’clock
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Here’s what groove should look like smooth and clean for max belt life
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Front view a pulley like yours but I’m running the 36hp pulley bolt for no other reason than I like the way it looks with a dimple.
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74 Thing
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PostPosted: Fri Sep 17, 2021 8:51 am    Post subject: Re: Crank pulley question Reply with quote

What does the snout measure on that pulley?

You will need some sort of seal puller to get your existing seal out of the case. Is the one in there metal on the outside?
https://www.thesamba.com/vw/forum/viewtopic.php?t=604252&highlight=lisle

There are seal part numbers listed here:
https://www.thesamba.com/vw/forum/viewtopic.php?t=...p;start=20
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