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AP90
Nürburgring


Joined: 25 Sep 2004
Posts: 377
Location: Cornwall UK


PostPosted: Tue Jul 23, 2019 3:12 pm    Post subject: Reply with quote

Where is the engine to chassis earth strap on these old buses?
 
  
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Endoman
Barcelona


Joined: 11 Apr 2011
Posts: 1395
Location: Bolton U.K.


PostPosted: Tue Jul 23, 2019 5:41 pm    Post subject: Reply with quote

R/h, other side of chassis rail from oil tank fairly high up and like most things hard to get at.
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Porsche 944 S2 Coupe Guards Red
Porsche 993 Coupe 9m RS Replica
 
  
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AP90
Nürburgring


Joined: 25 Sep 2004
Posts: 377
Location: Cornwall UK


PostPosted: Tue Jul 23, 2019 6:07 pm    Post subject: Reply with quote

Endoman wrote:
R/h, other side of chassis rail from oil tank fairly high up and like most things hard to get at.


Great thank you
 
  
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stuttgartmetal
Indianapolis


Joined: 23 Feb 2009
Posts: 2425
Location: Caterham. Surrey


PostPosted: Tue Jul 23, 2019 9:41 pm    Post subject: Reply with quote

Get it rebuilt.
Don’t fall for the 996 replacement
There’s a few reasons why they’re not so good.
Rebuild will be far better
Get the back of the car up on decent stands and take your time.
If you need a special short spanner or socket then buy it.
It won’t be impossible
 
  
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AP90
Nürburgring


Joined: 25 Sep 2004
Posts: 377
Location: Cornwall UK


PostPosted: Tue Jul 23, 2019 9:49 pm    Post subject: Reply with quote

stuttgartmetal wrote:
Get it rebuilt.
Don’t fall for the 996 replacement
There’s a few reasons why they’re not so good.
Rebuild will be far better
Get the back of the car up on decent stands and take your time.
If you need a special short spanner or socket then buy it.
It won’t be impossible


I have to say, that I was going to forego the core charge and keep and renovate the old motor to fit at a later date, especially since they are 1300.00 to buy!!

Like your attitude but I lack the courage or inclination these days Embarassed
 
  
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Luddite
Nürburgring


Joined: 18 Dec 2018
Posts: 438
Location: Scotland


PostPosted: Wed Jul 24, 2019 10:08 am    Post subject: Reply with quote

I have never worked on a Porsche newer than an SC, though in terms of cost when there are thought to be starter issues the earth strap seems about the cheapest place to start... of course a Porsche strap will cost a lot more than a car parts shop universal type, but then if you need to keep things "original" it`s only money... (-:

I appreciate that the earth strap may be difficult to get to and may have nothing to do with whatever issue is prevalent... However it should be possible to provide an alternative earth for test purposes in the hope of proving if the earth strap is at fault..?

Of course if you used a light bit of wire to bridge from a good bare metal point on the chassis to the engine, chances are it might burn like a fuse wire such are the possible currents involved. However using one out of a pair of cheap jump leads as can be bought from an auto shop, will do the trick.. Just be sure you have good bare metal connections on BOTH ends cleaning up a bolt head for clean connection purposes might do the trick.

If after the test things seem to have improved, then it may just be that either the strap of a connection either end is dirty/corroded or the strap it`s self may have in time begin to fail, after all it may be quite a few years old..? When cleaning the connection point to bare metal on the chassis side it is normal for both the threads of the bolt as well as the interface of bolt to washers to strap all to be part of the electrical connection process, and oft times corrosion can creep in to these all important areas. A quick clean of of the components points of contact with each other can do the trick. if paint is cleaned off the chassis to bare metal to ensure good contact, perhaps best to paint/grease over the whole area of the connection once it has been proven to be a good connection, the idea being to slow down the chance of corrosion creeping back in... Question
 
  
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ballcock
Sepang


Joined: 21 Jul 2008
Posts: 2969
Location: Dublin

1996 Porsche 993 Carrera 2

PostPosted: Wed Jul 24, 2019 12:35 pm    Post subject: Reply with quote

stuttgartmetal wrote:
Get it rebuilt.
Don’t fall for the 996 replacement
There’s a few reasons why they’re not so good.
Rebuild will be far better
Get the back of the car up on decent stands and take your time.
If you need a special short spanner or socket then buy it.
It won’t be impossible


bye Hey ho Stutsie! Hope you’re keeping well.
I contemplated paying for a rebuild but it’s the same price as buying a core exchange from ECP without the pain of the car laying up waiting for the refurb.

This is only the second time my 993 has let me down in 12 years, and the last time it was also a dicky starter motor so that can’t be bad!
I won’t even BEGIN to admit how many times my 996 has been on the naughty step in the last year. Embarassed
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'96 Iris C2 vario manual coupe, Koni FZD's/M033's RSR's and HID's.
‘98 Ocean blue 996 C2 Tip pressed into daily service.

Ex '83 W460 LWB G Wagen updated with OM602 engine and 6 speed 'box
Ex. '99 996 C2 manual coupe.
 
  
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adrian993
Monza


Joined: 01 Jul 2014
Posts: 170



PostPosted: Thu Jul 25, 2019 2:45 am    Post subject: Reply with quote

stuttgartmetal wrote:
Get it rebuilt.
Don’t fall for the 996 replacement
There’s a few reasons why they’re not so good.
Rebuild will be far better
Get the back of the car up on decent stands and take your time.
If you need a special short spanner or socket then buy it.
It won’t be impossible


any reason why the 996 replacement is not preferred?
 
  
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decgraham
Barcelona


Joined: 17 Sep 2008
Posts: 1360
Location: Spain


PostPosted: Thu Jul 25, 2019 6:41 am    Post subject: Reply with quote

I have had a starter motor problem a couple of times, all electrics working fine except no start. I put the battery on charge for an hour and hey presto it fires up without a problem. I tend not to use my car that much when the temperature goes above 30C here as I don´t want to cook the leathe. I do have a solar charger connected to the cigarette lighter but a boost from the battery charger seems to sort the problem. I have also found over the years that a battery only seems to last for a couple of years with the amount of use my car gets.

My starter is the original but it was serviced about 10 years ago. I have now got 108706 Kms on the clock or about 67500 Miles.

ATB Smile
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1995 993 C2 Cab TipS in Guards Red
 
  
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ch3tman
Hockenheim


Joined: 08 Dec 2012
Posts: 736
Location: South Bucks

1995 Porsche 911

PostPosted: Thu Jul 25, 2019 3:41 pm    Post subject: Reply with quote

adrian993 wrote:
stuttgartmetal wrote:
Get it rebuilt.
Don’t fall for the 996 replacement
There’s a few reasons why they’re not so good.
Rebuild will be far better
Get the back of the car up on decent stands and take your time.
If you need a special short spanner or socket then buy it.
It won’t be impossible

any reason why the 996 replacement is not preferred?

I'd like to know this, too, please... (what are the few reasons?)
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wilsonny
Monza


Joined: 01 Dec 2012
Posts: 192
Location: Cumbria


PostPosted: Thu Jul 25, 2019 8:46 pm    Post subject: Reply with quote

ch3tman wrote:
adrian993 wrote:
stuttgartmetal wrote:
Get it rebuilt.
Don’t fall for the 996 replacement
There’s a few reasons why they’re not so good.
Rebuild will be far better
Get the back of the car up on decent stands and take your time.
If you need a special short spanner or socket then buy it.
It won’t be impossible

any reason why the 996 replacement is not preferred?

I'd like to know this, too, please... (what are the few reasons?)


me too.. seems better to me on mine... old one stashed of course cos
_________________
1996 C2 manual
 
  
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ch3tman
Hockenheim


Joined: 08 Dec 2012
Posts: 736
Location: South Bucks

1995 Porsche 911

PostPosted: Mon Aug 05, 2019 11:10 am    Post subject: Reply with quote

wilsonny wrote:
ch3tman wrote:
adrian993 wrote:
stuttgartmetal wrote:
Get it rebuilt.
Don’t fall for the 996 replacement
There’s a few reasons why they’re not so good.
Rebuild will be far better
Get the back of the car up on decent stands and take your time.
If you need a special short spanner or socket then buy it.
It won’t be impossible

any reason why the 996 replacement is not preferred?

I'd like to know this, too, please... (what are the few reasons?)


me too.. seems better to me on mine... old one stashed of course cos

*paging stuttgartmetal* or anyone else who can elaborate Smile
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wilsonny
Monza


Joined: 01 Dec 2012
Posts: 192
Location: Cumbria


PostPosted: Mon Aug 05, 2019 2:08 pm    Post subject: Reply with quote

having actually fitted one, and having had both off the car to compare, I can't see a reason to not see this mundane electrical device like you would a more modern battery and replace with a slightly revised model. they are both made by bosch of course, but understand if perfect originality is your thing then it might not be the way to go.... but then don't be upgrading those old bulbs etc... Smile
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1996 C2 manual
 
  
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