Re: [MBZ] '84 300D GPR

2014-12-06 Thread OK Don via Mercedes
Sounds like an intermittent poor ground connection to me - I ended up
adding a second ground strap between the block and the chassis in the W115
and that ended all the starting issues for me.



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OK Don

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Re: [MBZ] '84 300D GPR

2014-12-06 Thread Meade Dillon via Mercedes
Maybe you have a battery with a cell which is going bad?  Have FLAPS load
test the battery to rule that out.

Max Dillon,
Charleston SC
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Re: [MBZ] '84 300D GPR

2014-12-06 Thread Jaime Kopchinski via Mercedes
I think the problem is that you sanded the contacts.  Its like ignition
points, if you sand off the surface coating then the likelyhood that they
corrode and fail again are much higher.

Jaime


On Fri, Dec 5, 2014 at 5:01 PM, G. M. Brown via Mercedes <
mercedes@okiebenz.com> wrote:

> I had a buzzing problem upon starting attempt with the GPR in my '84 300D
> back in March, took it apart resoldered the PCB, lightly sanded the contact
> points, and cleaned the external pin connections and it's been OK till the
> other day when all I would get was a click when attempting to start and it
> sounded like the battery was dead.  I checked the battery voltage and it's
> fine, so I took the GPR apart again, cleaned things up, lightly sanded the
> contact points, and DeOxit'd the contact points and external pins and the
> car started fine for one day, but it was back to the click and sounding
> like the battery is dead.  I remembered someone indicating back in March
> that moisture can get into the GPR box, but I sealed the edges w/ RTV the
> other day.  I'll dig into it again tomorrow to see if I can find what the
> problem is.
> Any suggestions?  TIA.
>
> G. M. Brown
> Brevard, NC
>
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>



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[MBZ] '84 300D GPR

2014-12-05 Thread G. M. Brown via Mercedes
I had a buzzing problem upon starting attempt with the GPR in my '84 300D back 
in March, took it apart resoldered the PCB, lightly sanded the contact points, 
and cleaned the external pin connections and it's been OK till the other day 
when all I would get was a click when attempting to start and it sounded like 
the battery was dead.  I checked the battery voltage and it's fine, so I took 
the GPR apart again, cleaned things up, lightly sanded the contact points, and 
DeOxit'd the contact points and external pins and the car started fine for one 
day, but it was back to the click and sounding like the battery is dead.  I 
remembered someone indicating back in March that moisture can get into the GPR 
box, but I sealed the edges w/ RTV the other day.  I'll dig into it again 
tomorrow to see if I can find what the problem is.
Any suggestions?  TIA.

G. M. Brown
Brevard, NC
  
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