924Board.org

[BionicBalls]

In the next few weeks I will finally have the time to upgrade the heater system in the 924 to the 944 blower. In the process I was thinking of converting my wiper assembly to the 944 unit as well, but the early assemblies seem to be in short supply so instead I'm gonna service mine.

The problem I'm having is 2 fold:

1) the wipers are slow as shit even on full blast. I'm hoping greasing the transmission will help this.

2) my passenger side wiper keeps coming loose from the stud. I've tried replacing the bolt with one with a nylon lock ring, adding a lock washer, using lock tight, and taping and dying the treads to clean them up. Nothing seems to keep my passenger wiper fixed to the stud.

Any suggestions for problem 2? Is there some special washer or something that I may be missing?

If not, anybody got a good unit for sale?
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1980 924 NA
1982 931

[ksis]

I ill be curious if you decide to rebuild. I had the same issue with slow wipers.
Eventually I greased all connections with white lithium and the problem went away.
I would however like to see a motor tear own.
_________________
77 924
64 Spitfire
76 TR6
04 Jetta
77 Schwinn Scrambler
Awsome pair of Chucks

http://www.cardomain.com/id/ksiskin

[brealytrent]

The wipers on my 924 are very slow as well. Went through with taking it apart (sorry, no pictures) and It looked brand new inside. you could literally see the thumb prints in the putty they put on the motor to balance it. No ideas as to why it's so slow. NOT buying a new one, ha!
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1977 Porsche 924 - sold
1980 Porsche 931 - sold
1984 Porsche 928 'S2' Euro - sold
2016 Ford Fiesta ST - sold
2009 Porsche Cayman

[fiat22turbo]

Poor electrical connection to the motor.

Increase the amount of power the motor can draw and it will go faster.

Poor internal connections or poor lubrication of the bushings in the motor.

Pull the motor apart, clean it, make sure the brushes and commutator are clean. Clean and lubricate the bushings, make sure the commutator doesn't rub or bind.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

[BionicBalls]

that will help it go faster, but any suggestions for the passenger side arm that doesn't want to stay tightened?
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1980 924 NA
1982 931

[Rasta Monsta]

Loctite?
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Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[BionicBalls]

See OP. Tried it, lock washer, lock nut. Maybe a lock washer above and below the wiper arm?
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1980 924 NA
1982 931

[fiat22turbo]

Aren't they splined onto the shaft?
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

[BionicBalls]

I think so, if that's the case... the splines are gone.
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1980 924 NA
1982 931

[ksis]

There is 2 924 in our local pick n pull, I can see if the stud is there and pull it for you. I think the stud is the same for the early VW's. I will chack that also.
_________________
77 924
64 Spitfire
76 TR6
04 Jetta
77 Schwinn Scrambler
Awsome pair of Chucks

http://www.cardomain.com/id/ksiskin

[BionicBalls]

That would be awesome, the local junkjard crushed all the 924s and 944 a few months back. I'll let you know if I will need it. I'll be working on it after Christmas.
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1980 924 NA
1982 931

[AppleBit]

Did you ever figure out your wiper speed issues? I am otherwise going to figure out how to get faster wipers, most likely swap to some different motor...

Reference for those who want to see the other post: Porsche 924 wiper motor upgrade
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Classic British Sports Car Restoration v6 + v8 Engine Conversion Swaps

Porsche 924 Wide Body LS1 Corvette 500 Horsepower Engine