My 79 Questions Thread, I'll Add Pics As I Go - Rennlist - Porsche Discussion Forums

Go Back  Rennlist - Porsche Discussion Forums > Water Cooled Technical Discussion Areas > 928 Forum
Reload this Page >

My 79 Questions Thread, I'll Add Pics As I Go

Notices
928 Forum
Sponsored by:
Sponsored by: 928 Specialists

My 79 Questions Thread, I'll Add Pics As I Go

Reply

Old 05-12-2018, 09:15 AM
  #1  
DeWolf
Addict
Rennlist Member
Thread Starter
 
Join Date: Oct 2004
Location: Australia
Posts: 1,247
Default My 79 Questions Thread, I'll Add Pics As I Go

Hi Guys,

I'll keep my questions for this car in this thread and hopefully it may help some others in the future.

Question here is: Can early 4.7 heads be used on a 4.5 and if they can are there any performance / reliability gains? And Is there a tutorial some where on head removal? And can it be done in the car? I've searched and can't really find to much.

I'm going to need to lean on a fair bit on you guys that are familiar with the early cars. I've learnt a lot from my semi-resto on the S3 and it goes without saying I'd have been screwed if it wasn't for some of you gents with vast banks of knowledge. So, thank you very much. I've already discovered that between the two cars I own there are some quite large differences.

I've already removed the front and rear spoilers so now she is a proper OB.

Cheers
Scott

Last edited by DeWolf; 05-12-2018 at 10:04 AM.
DeWolf is offline  
Reply With Quote
Old 05-12-2018, 10:08 AM
  #2  
DeWolf
Addict
Rennlist Member
Thread Starter
 
Join Date: Oct 2004
Location: Australia
Posts: 1,247
Default

Damage to repair after S4 wing removal and front S spoiler removal.
Which brings me to another question. This clearly had an S spoiler on it at some point. What do I need to replace the window trim to get it back to OB style?


DeWolf is offline  
Reply With Quote
Old 05-12-2018, 10:17 AM
  #3  
DeWolf
Addict
Rennlist Member
Thread Starter
 
Join Date: Oct 2004
Location: Australia
Posts: 1,247
Default

Not sure what they've done here but clearly not factory. Can someone post a pic of the early car switches so i can work out what I need. Thanks.

DeWolf is offline  
Reply With Quote
Old 05-12-2018, 01:32 PM
  #4  
potdog
Addict
Rennlist Member
 
Join Date: Sep 2011
Location: NOTTINGHAMSHIRE U/K
Posts: 299
Default

This is my early 1978
potdog is offline  
Reply With Quote
Old 05-13-2018, 09:22 AM
  #5  
DeWolf
Addict
Rennlist Member
Thread Starter
 
Join Date: Oct 2004
Location: Australia
Posts: 1,247
Default

Another question. Is the rear 1/4 window trim the same for the early cars as an S4?
DeWolf is offline  
Reply With Quote
Old 05-13-2018, 07:53 PM
  #6  
AirtekHVAC
Addict
Rennlist Member
 
AirtekHVAC's Avatar
 
Join Date: Mar 2012
Location: China Grove, NC
Posts: 2,683
Default

Here is my 79 Euro



AirtekHVAC is offline  
Reply With Quote
Old 05-13-2018, 09:35 PM
  #7  
Hymodyne
Addict
Rennlist Member
 
Hymodyne's Avatar
 
Join Date: Nov 2016
Location: Salisbury, MD
Posts: 213
Default

I had spares in the back seat of my '79 when I bought it. I'll take pictures if you are interested tomorrow.

James
Hymodyne is offline  
Reply With Quote
Old 05-14-2018, 01:15 AM
  #8  
DeWolf
Addict
Rennlist Member
Thread Starter
 
Join Date: Oct 2004
Location: Australia
Posts: 1,247
Default

Thanks James. It would appear there is no real difference to the later cars except for the trim piece when there's no sunroof or rear wiper. My rear wiper switch is on the pod. Not sure why they screwed mine up in that fashion.
DeWolf is offline  
Reply With Quote
Old 05-14-2018, 06:27 AM
  #9  
Guy
Addict
Rennlist Member

 
Guy's Avatar
 
Join Date: Aug 2002
Location: Bucks County, PA
Posts: 1,501
Default

Originally Posted by DeWolf View Post
Another question. Is the rear 1/4 window trim the same for the early cars as an S4?
No. The early cars differ slightly at the point towards the rear of the car. The trim differs. Not sure if the glass actually differs. It's more sharp on an early car. I think the change took place after 80.
Guy is offline  
Reply With Quote
Old 05-14-2018, 06:34 AM
  #10  
Kiwi'79
Addict
Rennlist Member
 
Kiwi'79's Avatar
 
Join Date: Mar 2016
Location: Mosgiel, Otago NZ
Posts: 551
Default


G’day Scott,

I look forward to your progress here, full pics would be great when you get it sorted, I also have a spoiler to remove from mine.

Both my ‘79 RHD euros have the same original power window switches, faded I know, but I like this patina!





Kiwi'79 is offline  
Reply With Quote
Old 05-14-2018, 08:02 AM
  #11  
DeWolf
Addict
Rennlist Member
Thread Starter
 
Join Date: Oct 2004
Location: Australia
Posts: 1,247
Default

Hi Kiwi,
Thanks mate. That's exactly what i needed to see. The bozo's that the car before have clearly turned the metal mount upside down and then fitted those stupid switches. I going to need to find that little centre trim piece from somewhere. Kiwi, can I ask for a pic of your rear quarter window and the trim nearest the lower rear bottom corner please.
It's going to be slow progress. I have an S3 eating up my $$$ and time at the moment, and I just lent my son a chunk of $$$ for a house so I need to work more!!

Hi Guy ( my oldest lads name),
Thanks for that. I will probably need to find an S4 local to me and check it out I reckon. If it's not a drastic change I'll probably use the S4 trim if it works. Anything has to be better than what's there now.

Thanks guys. Really appreciate your time. I have a Rock Auto discount code if anybody can use it. They say give it to friends and family who work on cars, what better than my 928 family! The code is 8318558174597573 and you put it in the 'how did you hear about us' box. Valid until July 8, 2018
DeWolf is offline  
Reply With Quote
Old 05-15-2018, 05:27 AM
  #12  
Kiwi'79
Addict
Rennlist Member
 
Kiwi'79's Avatar
 
Join Date: Mar 2016
Location: Mosgiel, Otago NZ
Posts: 551
Default






G’day mate, is this what you are after?

(You can see the “joiner-clip”, for want of the correct term, is slightly misplaced on my silver car, slides easily back into place though), hope this helps.
Kiwi'79 is offline  
Reply With Quote
Old 05-15-2018, 05:49 AM
  #13  
DeWolf
Addict
Rennlist Member
Thread Starter
 
Join Date: Oct 2004
Location: Australia
Posts: 1,247
Default

Perfect. Thank you for that.
DeWolf is offline  
Reply With Quote
Old 05-15-2018, 05:57 AM
  #14  
Kiwi'79
Addict
Rennlist Member
 
Kiwi'79's Avatar
 
Join Date: Mar 2016
Location: Mosgiel, Otago NZ
Posts: 551
Default

You are most welcome.
Kiwi'79 is offline  
Reply With Quote
Old 05-15-2018, 03:56 PM
  #15  
Guy
Addict
Rennlist Member

 
Guy's Avatar
 
Join Date: Aug 2002
Location: Bucks County, PA
Posts: 1,501
Default

Scott

Regarding your 4.7 head question. Later L jet heads differ from CIS heads in the air injection circuit. Late heads have the rear bungs plumbed to the intake side. Early heads are plumbed to the exhaust. The air pump pumped fresh air into the exhaust stream thru the heads, in later cars it's the cold injection circuit. You can use them but need to make provisions for the differences.
Guy is offline  
Reply With Quote

Thread Tools
Search this Thread

Contact Us Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: