Picked up a '90 C4 w/51K miles
#48
Rennlist Member
Thread Starter
Originally Posted by Lorenzoh
how hard is this? I remember it being a PITA on my 993...
Rob can chime in as he did all the heavy lifting. Removing all the engine tins makes #6 upper cylinder much more accessible. Was total 8 hrs..
Bosch now has a spark plug source out of Russia. I got 10 plugs from Germany and 2 from Russia. Kept the Russian plugs accessible for easy replacement should a problem arises..
Last edited by chsu74; 08-03-2019 at 11:13 PM.
#50
Race Car
It's an easy job on a car that has been apart. On a car that has sat for 30 years, sometimes bolts get stubborn. One of the bolts to the side tins snapped off...
The job, generally speaking, is easy but just a lot of time as so much has to be removed to snake the wires around, we really should have done a proper diy since i have some special tools that i use to get to some of the fiddly bits to make it easier. And there is some disassembly of the wire set to make snaking the passenger side wires easier...but all in all, not something i would ever pay a shop to do...way too many hours so the job ends up costing too much to farm out.
Fwiw, the first time i did this it was a two day project. Today moving slow and with all the chit chat, lunch, pondering and careful reassembly it was a day.
Also, another reason to do it yourself is that you know it was done right. And that any can of worms you open up or issues you find can be taken care of while in there.
One thing that's good to mention is a trick i showed Chao during reassembly- brand new coil plugs are a bitch to snap onto the coils. They are usually so tight in the hole that no matter how hard you try to press down, they don't actually get fully seated. The coils are in a place where you just don't get the leverage-
So, what you do, is you take an old coil that's out of the car, snap the new coil plug onto the old coil, you'll see it seats way farther down than the coils in the car. And they snap in with a very strong snap. Once you have done that with the new coil plug outside the car, they will snap in and fully seat more easily in the coils in the car, and you won't have the common (way too common when shops do the job) problem of having coils the work via a not so good connection, which causes gremlins that are impossible to track down until you realize your new coils and wires are the issue.
The job, generally speaking, is easy but just a lot of time as so much has to be removed to snake the wires around, we really should have done a proper diy since i have some special tools that i use to get to some of the fiddly bits to make it easier. And there is some disassembly of the wire set to make snaking the passenger side wires easier...but all in all, not something i would ever pay a shop to do...way too many hours so the job ends up costing too much to farm out.
Fwiw, the first time i did this it was a two day project. Today moving slow and with all the chit chat, lunch, pondering and careful reassembly it was a day.
Also, another reason to do it yourself is that you know it was done right. And that any can of worms you open up or issues you find can be taken care of while in there.
One thing that's good to mention is a trick i showed Chao during reassembly- brand new coil plugs are a bitch to snap onto the coils. They are usually so tight in the hole that no matter how hard you try to press down, they don't actually get fully seated. The coils are in a place where you just don't get the leverage-
So, what you do, is you take an old coil that's out of the car, snap the new coil plug onto the old coil, you'll see it seats way farther down than the coils in the car. And they snap in with a very strong snap. Once you have done that with the new coil plug outside the car, they will snap in and fully seat more easily in the coils in the car, and you won't have the common (way too common when shops do the job) problem of having coils the work via a not so good connection, which causes gremlins that are impossible to track down until you realize your new coils and wires are the issue.
#51
Rennlist Member
Thread Starter
Another day at DBFD garage continuing to sort the car out.
Cleaned ISV, vacuum hoses and parts. Replaced newer 964 coils waiting for my 993 coils to arrive.
Cleaned ISV, vacuum hoses and parts. Replaced newer 964 coils waiting for my 993 coils to arrive.
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cobalt (09-22-2020)
#53
Race Car
Hold on...don't forget the pressure washing of the rear wheel wells and underside of the car...
AFM removal and refurb...
Accelerator pedal adjustment
Intake cleaning (i have video will mega white smoke to prove)
And then half-fixing the sunroof- waiting on that part. I need to grab you that part number...
AFM removal and refurb...
Accelerator pedal adjustment
Intake cleaning (i have video will mega white smoke to prove)
And then half-fixing the sunroof- waiting on that part. I need to grab you that part number...
#54
Three Wheelin'
Nice work! I would caution the Home/China Depot hose clamps. They will corrode faster than you can imagine possible. Stainless Norma clamps, with copper grease squished in, have never let me down.
Reminds me, I should do my wires sooner than later. 110k, rev-limiter-banging, miles on my originals. Amazingly it doesn’t skip a beat, even in the rain.
Reminds me, I should do my wires sooner than later. 110k, rev-limiter-banging, miles on my originals. Amazingly it doesn’t skip a beat, even in the rain.
#55
Rennlist Member
Thread Starter
^ yes. Good call on hose clamps. The HD hose clamps are for short term fix as replacing oil lines are also on the list of things to do. I use breeze hose clamps for my 3TT intercoolers and am wondering if they are good for this application in terms of even pressure applied vs traditional hose clamp design.
Overall, I am not satisfied with US clamps with SAE and flat screwdriver bolt design. Just nit picking that keeps me up at night lol.
Overall, I am not satisfied with US clamps with SAE and flat screwdriver bolt design. Just nit picking that keeps me up at night lol.
#57
Burning Brakes
#58
Rennlist Member
Thread Starter
Originally Posted by Infinite1
Yikes! Sounds like time for a LWFW and Steve Wong chip? I put that in mine during my recent rebuild and love it!
I knew my time was limited owning probably one of the last Freudenberg flywheels in a 964 but was not expecting it to come apart this quick..
#59
Rennlist Member
Wow didn't realize this was your thread and car. Congrats.. Sorry I couldn't get you the info by yesterday. If you want to go factory Luk dual mass with sachs clutch kit with less than 1000 miles on it in perfect condition the offer still stands, let me know I can save you considerable money over new.
#60
Rennlist Member
Thread Starter
Originally Posted by cobalt
Wow didn't realize this was your thread and car. Congrats.. Sorry I couldn't get you the info by yesterday. If you want to go factory Luk dual mass with sachs clutch kit with less than 1000 miles on it in perfect condition the offer still stands, let me know I can save you considerable money over new.