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ISSUE: Bad Front Shocks on the Early 928 (OB). Sagging or Bouncing or uneven ride.

FIX: Replace them with some Adjustable (like your rear shocks) Bilstein Shocks. I also did all my Springs at the same time, I got a set of Eibachs from 928 Intl. You MUST install the "Adjustable" Shocks on the front with these springs since they are drastically shorter. You will also need to buy S4 Perches to use these Eibach Springs. I have to be honest, this is one of the hardest jobs you'll have to do. The early models are very hard unless you can remove the lower arm, which is practically impossible to remove since the 2 bolts holding it are on the inside of the engine compartment. I have a very long breaker bar but not much room since the engine is so close to the sides of the engine compartment. I never was able to remove the lower arm. I ended up using a Spring Compressor (Harbor Freight) and a Crow Bar to compress it even more on top where the 3 bolts are.

If you can remove the lower arm, then this will make it a whole lot easier.

PICS: Here are a bunch of pics I took during the installation. So much for the pretty powdercoating on the new Eibach Springs from 928 Intl.

















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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior

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Old 03-29-2012, 01:27 PM
  Pelican Parts Technical Article Directory    Reply With Quote #61 (permalink)
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ISSUE: CV Joint Boots Ripped. Yup, more than likely if you never serviced them, they are ripped and letting dirt mix with the bearings. This is Bad.

FIX: I purchased a CV Rebuild Kit, each kit will do one side, so you will need two. This is a very very messy job. You'll need to get your car up on Jack Stands and remove all the allen bolts that hold the CV in place. Clean all the part very well, I used brake cleaner. When reinstalling the bearings, you need to make sure the CV acts like a CV, if you have it backwards, you will know right away. So make sure you verify it rolls around freely. Pack it up with the included grease. Upon re-install to your car, your going to use the included paper gasket. This will test your patience as your working with uneven surfaces plus a whole lotta grease "plus" the damn CV is rolling all over the place. Rest assured, you can do it.

PICS: I took a mega amount of pics so you can see the process. Keep in mind, this is on my early 928 and it had allen bolts on both ends of the CV. The later models will have one side allen and the other wheel side a large nut.



















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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior

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Last edited by MPDano; 03-29-2012 at 01:52 PM..
Old 03-29-2012, 01:48 PM
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More Pics of the CV Job:



















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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior

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Old 03-29-2012, 01:50 PM
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Last set of CV Pics:













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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior

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Old 03-29-2012, 01:51 PM
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ISSUE: Got an OB (Old Body) but no Rear Wing?

FIX: Here is my install of the S4 Wing I got off eBay.

I did some dry mounts and found that the hatch has a curve so there really is only 1 perfect spot for it. It also centers the bolts perfectly and follows the curvature of the hatch lines. I measured 7-1/2 inches from the lower corner of hatch. The measured center to center of the bolts. I used a center punch to start the drill hole and drilled away.

Also, you can see that the underside will need to be opened in a large hole fashion since the hatch isn't molded correctly for an S4 Wing install. I will make a custom cover later to cover the holes since this will let in water because of it's location.

I bought some Stainless Steel Bolts, Washers and Nuts at my local Home Depot, so I know these bad boys will never rust up. I will also put some RTV Silicone on the mounting area but this is just a dry mount before I get the car painted.

I have since this write-up found a better way to mount the wing with some allen head bolts, it will be better since you won't need to make such a large hole on the bottom side of the Rear Hatch.

PICS:



















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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior

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Old 03-29-2012, 02:02 PM
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More pics of the Wing install:

















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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
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Old 03-29-2012, 02:03 PM
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Old 03-29-2012, 02:05 PM
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Last of the Wing install Pics:











Here she is today:



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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior

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Old 03-29-2012, 02:07 PM
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ISSUE: I Dunno what my Oil Temp is? And I like to know what's happening with my 928 Innards.

FIX: I found a Sandwich Plate which fits between your Engine and Oil Filter. You do need to modify it a little by grinding down some aluminum on the sandwich plate since the stock hollow bolt that holds the sandwich plate is too short. If you have a Dremel which you "NEED." It's easy parcheesy. Once you get it mounted up and the Oil Filter installed, just run your wire from the sensor to your Cockpit Gauge.

PICS:



















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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior

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Old 03-29-2012, 02:18 PM
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ISSUE: Got A/F Ratio Problems? A/F is Air/Fuel by the way.

FIX: Here's an awesome Wideband O2 Sensor Kit by Innovate, which you will then be able to monitor your ratios all day long. Not sure what the myth about the Wideband O2 Sensor burning up if you keep it in all the time is horses#@$t. I've had my Wideband in my Euro for almost 3 years now and it even survived being set too lean for 2-1/2 of those years. I had to replace my Exhaust Tailpipe Tip because it burned it up because the exhaust was always so hot. Imagine what the O2 endured being all the way upstream.

Anyways, I ended up mounting the unit on the underside of the car and zip tying it, it has never fallen off after all these years and the unit is sealed, then run your cables to the inside Cockpit and then to your Gauge. What's cool is that you can always see your mixture from idle and while your at WOT.

PICS:

















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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior
1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior

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Last edited by MPDano; 03-29-2012 at 02:35 PM..
Old 03-29-2012, 02:32 PM
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More Pics of the Wideband O2 install:







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Old 03-29-2012, 02:33 PM
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ISSUE: Got Air Conditioning? Probably not, most are not working and a lot of them still have R12 in them.

FIX: I've come to the conclusion that there are certain things we or I can do, then there are things we need to let the Pros handle. It is not out of our reach to replace parts and seals, but I feel the proper evacuation, charging and leak detection should be left to the Pros (AC Businesses).

You'll see what happens when you either add too much Refrigerant or Oil in one of my pics below. Wasn't pretty when an AC Compressor Clutch locks up while your driving.

Anyways, you'll see that I replaced all the connecting seals (I just asked 928 Intl to give me all the seals I will need), and there really isn't very many. Remember, in the USA, R12 is illegal to obtain so we are stuck with R134 which works just fine. I also replaced the Drier. Neil donated a perfectly working Compressor to my cause and it cleaned up very nicely. At this point, I took it to the AC Business near me and had them do the Evacuation and Recharge. They did find that my Expansion Valve was faulty. This is very hard to replace on our cars and they actually had to cut mine off. This is that part in my pics that has droplets on. This is exactly what you want to see if your AC is working properly. It's been holding now for 3 years.

PICS:



















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Last edited by MPDano; 03-29-2012 at 02:56 PM..
Old 03-29-2012, 02:52 PM
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More pics of the AC Issue:




















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Old 03-29-2012, 02:54 PM
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ISSUE: Odometer not working?

FIX: There is a small gear that disintegrates over time. Kinda like an old rubber-band does. Terrible material used for this gear when all the other gears seem to be fine.

Buy Gear here:

Odometer Gears - Porsche - 928 77-95

$25 as of April 2012



PICS:









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Old 04-09-2012, 12:48 PM
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Old 04-09-2012, 12:50 PM
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1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior

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Old 04-09-2012, 12:51 PM
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1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior

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Old 04-09-2012, 12:52 PM
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Old 04-09-2012, 12:54 PM
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1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior

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Old 04-09-2012, 12:55 PM
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1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior

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Old 04-09-2012, 12:57 PM
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