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  Topic: Overhaul Porsche 931 S1 engine
MOTANUL

Replies: 4
Views: 2523

PostForum: 931 Tech.   Posted: Thu Nov 19, 2020 2:47 am   Subject: Overhaul Porsche 931 S1 engine
I took the 924 turbo engine compression: 8.2 8.4 8.6 8.2 bar

I did not find how much an ideal compression should be for 924 turbo engine.

At 924 NA I had found 12 bar.

I was unable to unscre ...
  Topic: 1980 Porsche 924 turbo aesthetic restoration mainly
MOTANUL

Replies: 45
Views: 19566

PostForum: 931 Discussion   Posted: Sat Oct 31, 2020 6:48 am   Subject: 1980 Porsche 924 turbo aesthetic restoration mainly
Help me identify the wires on the radio.
I found:
+ 12V black (thick wire) - always on
+ 12V red-black (thin wire) - always on
+ 12V L (works when head lights are on).
brown - grounding

In the ...
  Topic: 1980 Porsche 924 turbo aesthetic restoration mainly
MOTANUL

Replies: 45
Views: 19566

PostForum: 931 Discussion   Posted: Fri Oct 30, 2020 7:26 am   Subject: 1980 Porsche 924 turbo aesthetic restoration mainly
My car has only 2 speakers from the factory. It doesn't have door speakers.

Blaupunkt Heidelberg is now being repaired. If the repair is successful I will be able to choose. (these are components t ...
  Topic: 1980 Porsche 924 turbo aesthetic restoration mainly
MOTANUL

Replies: 45
Views: 19566

PostForum: 931 Discussion   Posted: Thu Oct 29, 2020 10:50 pm   Subject: 1980 Porsche 924 turbo aesthetic restoration mainly
I decided to put a working stereo radio. I want it to be from the 1980s (not necessarily with the Porsche logo). I have 2 options: Blaupunkt Heidelberg and Blaupunkt Paris.
The first one still doesn' ...
  Topic: 1980 Porsche 924 turbo aesthetic restoration mainly
MOTANUL

Replies: 45
Views: 19566

PostForum: 931 Discussion   Posted: Fri Sep 25, 2020 9:05 am   Subject: 1980 Porsche 924 turbo aesthetic restoration mainly
Track day near Bucharest

https://i.ibb.co/fxpmbpq/0294-SSD-9201.jpghttps://i.ibb.co/4Nzp8vt/0541-SSD-1425.jpghttps://i.ibb.co/6bCKcZX/1159-SSD-6466.jpghttps://i.ibb.co/xL7sWX4/IMG-20200913-175618.j ...
  Topic: Cold start rough running
MOTANUL

Replies: 7
Views: 3007

PostForum: 931 Tech.   Posted: Sat Jun 27, 2020 11:44 pm   Subject: Cold start rough running
From what I remember at NA it closes. Closes in about 1 minute. And it stays close as long as the ignition is on (warm engine).

I noticed that the AAV turbo shape is a little different - I did not ...
  Topic: Cold start rough running
MOTANUL

Replies: 7
Views: 3007

PostForum: 931 Tech.   Posted: Thu Jun 25, 2020 7:32 am   Subject: Re: Cold start rough running


Does this sound like a Auxiliary Air Valve problem? I've read that they usually fail stuck open, which sounds like it would be the opposite of what I'm seeing.



In my experience, even if th ...
  Topic: Overhaul Porsche 931 S1 engine
MOTANUL

Replies: 4
Views: 2523

PostForum: 931 Tech.   Posted: Mon Jun 22, 2020 8:50 pm   Subject: Overhaul Porsche 931 S1 engine
1. Total SealŪ Piston Rings Company Sold
This company? http://www.totalseal.com/

2-Piston pin - why? - If it is not necessary, I do not change it.

3-4 Mittelmotor

Pistons - Porsche If I am ...
  Topic: Overhaul Porsche 931 S1 engine
MOTANUL

Replies: 4
Views: 2523

PostForum: 931 Tech.   Posted: Mon Jun 22, 2020 7:34 pm   Subject: Overhaul Porsche 931 S1 engine
I plan to disassemble the engine in the fall to replace the following:
1-Piston rings
2-Piston pin
3-Connecting-rod bearing
4-Crankshaft bearing
-gaskets

If necessary, I will also replace the ...
  Topic: 931 Tech To do list
MOTANUL

Replies: 126
Views: 83528

PostForum: 931 Tech.   Posted: Fri May 29, 2020 2:49 am   Subject: 931 Tech To do list
The steering column rattles pretty badly. I replaced the wheel bearing. Almost no improvement

The bushing on the steering column is no longer available. Maybe I can put a teflon or polyurethan ...
  Topic: 1980 Porsche 924 turbo aesthetic restoration mainly
MOTANUL

Replies: 45
Views: 19566

PostForum: 931 Discussion   Posted: Fri Apr 03, 2020 5:24 am   Subject: 1980 Porsche 924 turbo aesthetic restoration mainly
The hood and the interior is ready.

https://i.ibb.co/ZBFsBwC/IMG-20200402-140830.jpghttps://i.ibb.co/8DzZD9N/IMG-20200402-172918.jpghttps://i.ibb.co/Sm6MXw4/IMG-20200402-173233.jpghttps://i.ibb.co ...
  Topic: Oil in my air box
MOTANUL

Replies: 13
Views: 16099

PostForum: 931 Tech.   Posted: Wed Apr 01, 2020 12:46 am   Subject: Oil in my air box
Why are there 2 pipes? I guess the long pipe is set to stop the oil vapor from getting on the air filter.

I do not understand the role of the short pipe. Maybe some clearer pictures would help me f ...
  Topic: 1980 Porsche 924 turbo aesthetic restoration mainly
MOTANUL

Replies: 45
Views: 19566

PostForum: 931 Discussion   Posted: Sun Mar 29, 2020 4:57 am   Subject: 1980 Porsche 924 turbo aesthetic restoration mainly
Before and after covid.


https://i.ibb.co/VNFQv1r/90849221-2826375917478122-6956290364458139648-o.jpghttps://i.ibb.co/hFHrDNf/91356043-2826375924144788-6243685707286577152-o.jpg
  Topic: Oil in my air box
MOTANUL

Replies: 13
Views: 16099

PostForum: 931 Tech.   Posted: Thu Mar 26, 2020 5:40 pm   Subject: Oil in my air box
I have previously written on the forum that the 924 Turbo US models do not bypass the air filter (the hose in the purulator enters the air filter housing in series 1 and series 2).

Question: Is the ...
  Topic: Clutch pedal no longer disengages clutch
MOTANUL

Replies: 23
Views: 9242

PostForum: 931 Tech.   Posted: Tue Mar 24, 2020 2:13 am   Subject: Clutch pedal no longer disengages clutch
It usually breaks down Clutch operating cylinder or master cylinder.

Many with Porsche 924S or 944 have already changed these spare parts due to failure.
 
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