Marcos Maniacs

Hi Jeff,
Ah, the fun of owning an exotic car! Under the category of "when you 
hear hoof beats, don't think Zebras!" To operate properly the 
wiper motor and wiper switch must have a good ground.Check that you 
have a really GOOD ground for the wiper motor.(don't assume that if 
the ground wire is in place that it is good... clean all the contact 
points and if necessary,put a temporary jumper to the negative wire
at the battery until you are positive you have a good ground)  One of
the wires from the wiper SWITCH should go to ground and it should be
black in color. (all the ground wires should be Black) (On my car it 
is located between a yellow with a light green stripe and a red with a 
light green stripe on the wiper switch) Be sure that this has a proper 
ground as well. 
Usually the ground wires go to a "commoning connector" and then one of 
the wires eventually goes to ground.  A lack of use, sitting in a 
humid climate etc. will make all of the connections "flakey". And a  
lack of a proper ground will result in the symptoms you describe 
for your wiper motor ie. sluggish, lack of torque etc.  Won't do 
any thing for the degree of swipe, of course.
Have fun,
Mike Denman
1966 Marcos 1800
Chassis # 4079.--- In MarcosManiacs@y..., "Jeff Caraway" 
<DovenWolf@c...> wrote:
> Hi Paul,
> Thanks for the suggestion, but I have oiled and lubed everything I 
can
> think of.
> Not only did I grease the motor gears before I put it in, but I 
greased
> and WD40-ed the heck out of the wiper linkage to no avail.
>  
> Jeff Caraway
> #8052 1984 V6 GT
>  
>  
> -----Original Message-----
> From: pauldransfield@i... [mailto:pauldransfield@i...] 
> Sent: Monday, October 22, 2001 4:50 PM
> To: MarcosManiacs@y...
> Subject: RE: [MarcosManiacs] More Wiper motor/ gearing 
questions.....
> Please help!!!!
>  
> Jeff,
>  
> I had a similar problem with the wipers on another vehicle which was
> cause by a lack of lubricant on the shafts to which the wipers 
attach.
> If the wipers haven't been used for quite some time, they may simply
> need oiling.
>  
> Regards,
> Paul Dransfield
> -----Original Message-----
> From: Jeff Caraway [mailto:DovenWolf@c...]
> Sent: Monday, October 22, 2001 4:26 PM
> To: MarcosManiacs@y...
> Subject: [MarcosManiacs] More Wiper motor/ gearing questions..... 
Please
> help!!!!
> Hi All,
> I finally got my replacement wiper motor in this weekend, but am not
> sure that it is quite right.
> It moves fairly slow and almost grinds to a halt on a dry 
windshield,
> and the "high" speed is even worse and can barely move.
> It acts OK with the wiper arms off or on a wet windshield, but I 
still
> wonder if it is right.
> I used a replacement motor that was sent to me. It looked the same, 
but
> the origin of the motor is unknown. The only real difference I did
> notice is that the main gear in the original has 120 degrees
stamped 
on
> it and the replacement had 105 degrees. At first I though this was a
> position marker for the gears, however the more I think about it, I 
am
> lead to believe that the number indicates the arc that the wipers 
will
> follow.
> Now, if this is the case, would the 120degree gears have more
torque 
and
> cover more of the windshield than the 105?
> Or, could it actually be a weaker motor even though that part looked
> exactly the same?
> I am leaning towards changing the gears because I wouldn't think 
that
> they (Lucas) would radically change a 14W motor for each 
application.
>  
> Can anyone add their opinion/ knowledge/ experience?
>  
> I'd really like some second opinions before I go ripping the whole 
lot
> back out to change the gears.
>  
> Thanks,
> Jeff Caraway
> #8052 1984 V6 GT
>  
>  
> 
> 
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