copey007

One of my plans for next year is to have my shark completely re-wired, new loom, the lot. I may even have a re-furbished pod and dash installed while I am at it.

I am going to get a ball park figure off my local shop, has anyone ever had this done? I have the costs for the pod and dash, just not labor..

Before and after photo's would be good too

Regards

Mark

Jim bailey - 928 International

Quickly adding up the cost for MOST of the wiring I get over $10,000 just for the new wires from Porsche ! Labor would also be quite high as well . Removing and installing the dash is usually about 8 hours just for that alone.

Alan

why do you propose doing this...?

It is a huge amount of work and not easy to get right...

Alan

Cheburator

Depends on what you will be using the car for. I am planning to rewire my races completely next winter because I believe I can save another 30kg and make the harness less complex and more reliable. A racecar does not need a system to tell me whether my rear lights are on or off etc. I plan to keep the engine wiring harness...

copey007

The car has quite a few electrical 'issues'. Now I know this is common, however I was just throwing the notion out there really. The feedback thus far is a reality check. I guess what I really need is someone to comb through the electrical issues and pick them off, one by one... even the heaters on the blink!

Jim bailey - 928 International

I only know of one S-4 which had a MAJOR interior fire that actually drove away from a repair shop after having most of the wiring replaced with good used wires from 928 International. That was nearly 20 years ago when the burn car was nearly NEW . And although the car ran few of the "extras" like air conditioning , windows etc were functional ! The customer simply ran out of money...drove away with no windshield !

Jim bailey - 928 International

Yes that is true " what I really need is someone to comb through the electrical issues and pick them off, one by one... even the heaters on the blink! " And the best person to do that is probably YOU . Get a copy of Wally's electrical system tune up annual check and dig in . Otherwise you will be spending $100 per hour for someone to check fuses , relays , clean wire ground points etc. If you are not getting any heat from the heater odds are the heater valve is wired shut because it defaults to let hot water circulate ALL the time so in summer some people wire them in the off position.

Sean79 5spd

Wires are not ussually the problem, it is the connectors and ground points. Of course on older cars the wires in the engine compartment have been damaged by years of heat. I did replace this harness. The rest of the car just needs a carefull exam of connectors and cleaning if necessary.

Sean

JP Rodkey

I second that. It does take the right mindset and reasonable ability, but you don't have to be a wizard, either. If you can decipher the schematics (they can look more intimidating than they really are) you're more than halfway there, IMO.

When I got into the working world with a large company, one of my assignments was to assist a test engineer who was wringing out a rather large electrical control system. There were 12 interconnected cabinets (each 72" X 36" X 90" high) full of electronic switching used to automate a beer bottling line. There were 250 pages of Size D drawings for the schematics. Every circuit on every page had to be traced and verified in the real world and functionally tested. After getting to know the engineer a bit, and feeling absolutely and overwhelmingly lost in the process, I asked him, "How on earth do you figure this out, and how do you know what to do?" His answer made quite an impact and I always (apparently) remembered it. He replied, "Well......I fugure if a man can design it, I ought to be able to figure out how it works."

I can't say his wisdom is 100% true (certainly not for me), but it's been advice that motivated me when I needed it.

Edit to add: Here's some motivation......https://rennlist.com/forums/928-forum/305146-79-fuseboard-follies.html

copey007

Thanks chaps, I will get my overalls on and get busy..

Mark

largecar379

Mmm......can we say that you're a new shark owner? or at least, new to the quirks of Shark-dom....?

---Russ

copey007

Erms, yes and yes... lol

Mrmerlin

since your having elex problems why not start with some known problem spots.
First always DISCONNECT the BATTERY when working on the elex system, that said clean all of the elex connections starting with the battery.
Next get under the passenger side dash and look up see if you can find water drip trails coming from the bottom of the blower box ,if you see any then it is a safe bet that your blower box is leaking water onto your CE(central electrics panel)
This can be further verified by getting a fuse chart from www.928gt.com and pulling every fuse one at a time and looking for corrosion on the fuse blades. Also this job would entail that you remove every relay one at a time, looking for corrosion and also verifying that the correct part number relay has been installed into the correct position.
You should also consider getting a complete set of new fuses and replacing them . If you find any relays that have corrosion on the blades then i would recommend that you open the relay and check out the innards as a fouled up contact can cause lots of other problems.
The other place to look for bad elex is at the hot post under the hood at the front of the right shock tower, there should be a cover for this connection, remove the 11mm bolt that holds the wires and also disconnect the 14 pin black connector, clean these wires and pins with a pink eraser and refit your hot post cover.
If the blower box is leaking then the CE panel must be dropped down and the blower box retaining bolts removed, as well as under the hood the top of the blower box must have the blower removed (2 bolts) and disconnect the blue hose for the vacuum pot that controls the in/out air supply. once the box is out get some 3M black strip caulk and fill in the sealing groove and refit the bottom blower box .
This should keep you busy for a day or so..........

copey007

That is fantastic advice, many thanks!

Mark

BC

Everyone poo-poos the idea of redoing an entire system. But the reality is the amount of time spent chasing the tail of the dragon on this will far outweigh the time needed to rip it all out and install an 18 channel universal loom.

The engine loom is separate.