Wiper Help

B

Brian Crombie

Guest
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<font face="Arial" size="2">Greetings All,</font>
<font face="Arial" size="2">One of the last fixes on my Amphicar is the wipers. I've spoke withMr. Waveand John B. the last few days and they both gave me good advice but I still can not get them to park properly. They operate fine but they park in a vertical position. I took the motor apart down to the two gears and John, your right, the old grease was more like wax. Removed all of that, cleaned up the contacts that make wipers park, parts cleaned the gears and installed new white lith grease. Put her back together and was hoping that sometimes when you give something a good cleaning it works. Not this time. </font>
<font face="Arial" size="2"> I see how the park is activated by the triangle like metal plate on the main gearthat strikes the rod that opens the contacts but it appears there is no adjustment. I rotated the J fitting on the linkage that attaches to the motor shaft 180 degrees but got the same results. Hopefully this is a simple fix. Any ideas as to what else it could be?</font>
<font face="Arial" size="2">Very nice news letter Amphipoda! Pretty cool little paper insert too!</font>
<font face="Arial" size="2"></font>
<font face="Arial" size="2">Brian</font>
 
J

John Friese

Guest
Hello Brian,

Did you switch the polarity of your Amphicar? If so, the motor will
run backwards which seems to run the wipers okay but they sometimes
won't park correctly. They won't be vertical but they won't be down at
the bottom either. This is because the shut off is offset a bit from
the bottom position to allow the motor to coast a bit so it ends up at
the bottom. To fix that problem, you reverse the wires on the motor
brushes. This will reverse the motor and it should fix the problem.

If the wipers actually end up at the top of their stroke, I suspect you
only think you reversed that J arm but you actually didn't.

John Friese

67 White
67 Red





--- In amphicar-lovers@yahoogroups.com, Brian Crombie <baddogg@d...>
wrote:
> Greetings All,
> One of the last fixes on my Amphicar is the wipers. I've spoke with
Mr. Wave and John B. the last few days and they both gave me good
advice but I still can not get them to park properly. They operate
fine but they park in a vertical position. I took the motor apart down
to the two gears and John, your right, the old grease was more like
wax. Removed all of that, cleaned up the contacts that make wipers
park, parts cleaned the gears and installed new white lith grease. Put
her back together and was hoping that sometimes when you give something
a good cleaning it works. Not this time.
> I see how the park is activated by the triangle like metal plate on
the main gear that strikes the rod that opens the contacts but it
appears there is no adjustment. I rotated the J fitting on the linkage
that attaches to the motor shaft 180 degrees but got the same results.
Hopefully this is a simple fix. Any ideas as to what else it could be?
> Very nice news letter Amphipoda! Pretty cool little paper insert too!
>
> Brian
 
B

Brian Crombie

Guest
Re: Re: Wiper Help

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<font face="Arial" size="2">John,</font>
<font face="Arial" size="2">The previous owner switched to negative ground. When I bought the car, the wipers did not work. I suspect he did not reverse the wires. He did however install an after market gas gauge. Judging by the hack wire repairsthat has been done on this car, that's probably the answer. JB, you mentioned the wires too didn't you? I suppose I could briefly put it back to positive ground andcycle the wipers to confirm this. We'll give her a go in the am.</font>
<font face="Arial" size="2">Thanks guy's!</font>
<font face="Arial" size="2"></font>
<font face="Arial" size="2">Brian</font>
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J

John Friese

Guest
Hello Brian,


I'm not sure why but some wiper motors aren't bothered by reversing the
ground and don't require anything be done, but most of the time you
have the parking problem that you had. Perhaps it's some variation in
the motor unit from one batch to another.

It sounds like you have other problems too. What's this about
an "after market gas gauge"? I've never heard of such a bad sounding
idea. I have converted many Amphicar gas gauges to negative ground and
I calibrate them at the same time. I've done directly for owners and
Hugh also has me do them for his Gordon Imports customers.

John Friese

67 White
67 Red



--- In amphicar-lovers@yahoogroups.com, Brian Crombie <baddogg@d...>
wrote:
> John,
> The previous owner switched to negative ground. When I bought the
car, the wipers did not work. I suspect he did not reverse the wires.
He did however install an after market gas gauge. Judging by the hack
wire repairs that has been done on this car, that's probably the
answer. JB, you mentioned the wires too didn't you? I suppose I could
briefly put it back to positive ground and cycle the wipers to confirm
this. We'll give her a go in the am.
> Thanks guy's!
>
> Brian
 
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