Show full size 924Board.org
Discussion Forum of 924.org
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
 Technical FAQ924 FAQ (Technical)   Technical924 Technical Section   Jump to 924.org924.org   Jump to PCA 924 Registry924 Registry

Search found 164 matches
924Board.org Forum Index
Author Message
  Topic: Difference Between a 931 S1 and 931 S2
MOTANUL

Replies: 3
Views: 444

PostForum: 931 Discussion   Posted: Sat Oct 23, 2021 4:00 am   Subject: Difference Between a 931 S1 and 931 S2
To distinguish them visually very easily you have to look at Intake manifold and Turbocharging Pressure pipe.
Porsche / 924 turbo - logo are diferent - see pictures.
1979-1980 S1
1980-1982 S2

S ...
  Topic: 931 Head Installation Thread
MOTANUL

Replies: 45
Views: 4712

PostForum: 931 Tech.   Posted: Tue Oct 12, 2021 6:29 am   Subject: Re: 931 Head Installation Thread

Is stainless preferable to grade 8 steel? Also someone in another thread mentioned copper nuts, is that correct?

Thanks...


I use grade 8 stainless steel for manifold studs and nuts. Genuine ...
  Topic: Changing oil pan while engine is still in car.
MOTANUL

Replies: 23
Views: 9149

PostForum: General Discussions   Posted: Tue Sep 21, 2021 4:02 pm   Subject: Changing oil pan while engine is still in car.
Does anyone know if the 2 pieces of aluminum are needed?
Both of them go out of the profile of the oil pan and prevent me from removing it. (unless I disassemble a pile of parts).

https://i.ibb.co ...
  Topic: Changing oil pan while engine is still in car.
MOTANUL

Replies: 23
Views: 9149

PostForum: General Discussions   Posted: Mon Sep 20, 2021 9:14 pm   Subject: Re: Changing oil pan while engine is still in car.


REMOVAL OF OIL PAN

2. There are 3 bolts that hold the oil pan to the bellhousing, 2 are easy to reach and you will know them when you see them, both are easily accessible from the bottom of the ...
  Topic: Overhaul Porsche 931 S1 engine
MOTANUL

Replies: 49
Views: 33548

PostForum: 931 Tech.   Posted: Sat Jun 12, 2021 3:14 am   Subject: Overhaul Porsche 931 S1 engine
An intake digital pressure gauge was mounted on my engine on the fork leading to check valve. (which I am very happy with and I want to keep it).
At this time check valve is in the glove compartment. ...
  Topic: Overhaul Porsche 931 S1 engine
MOTANUL

Replies: 49
Views: 33548

PostForum: 931 Tech.   Posted: Sat Jun 05, 2021 11:44 pm   Subject: Overhaul Porsche 931 S1 engine
Regarding vacuum lines.

It is not clear to me either from the technical diagram - or from a picture with the 1980 porsche 924 turbo engine:
Where does the Check valve connect to?
On the one hand ...
  Topic: Fuel Accumulator Threads/Fittings
MOTANUL

Replies: 2
Views: 4001

PostForum: 931 Tech.   Posted: Sun May 30, 2021 9:22 am   Subject: Fuel Accumulator Threads/Fittings
As far as I know, they are not all the same. I also met some fuel accumulator with the same diameter and others with a larger diameter and a smaller one.
If they have not been dismantled for a long t ...
  Topic: Arghhh, what is going on?
MOTANUL

Replies: 8
Views: 4407

PostForum: 931 Tech.   Posted: Sun May 30, 2021 9:07 am   Subject: Arghhh, what is going on?
Check the following - K-jetronic:
1. Cold pressure
2. Hot pressure
3. How many minutes the pressure is maintained after stopping the engine.

I would bet on a faulty wur or faulty pressure accumu ...
  Topic: What would cause a 931 fuel pump fuse to fail?
MOTANUL

Replies: 34
Views: 28490

PostForum: 931 Tech.   Posted: Fri May 07, 2021 7:54 am   Subject: What would cause a 931 fuel pump fuse to fail?
I also had the fuse melted and the blackened contact area between the fuse box and the fuse. The best solution was to put a new modern fuse in place. It has a much larger contact surface and no longer ...
  Topic: Overhaul Porsche 931 S1 engine
MOTANUL

Replies: 49
Views: 33548

PostForum: 931 Tech.   Posted: Sun Apr 25, 2021 5:01 pm   Subject: Overhaul Porsche 931 S1 engine
I disassembled the electric motor 4 months ago and I can't remember how the wires were tied. I put the white thread down (its shape indicates that it was taken out of there) the thinnest thread with a ...
  Topic: Overhaul Porsche 931 S1 engine
MOTANUL

Replies: 49
Views: 33548

PostForum: 931 Tech.   Posted: Mon Mar 29, 2021 6:17 pm   Subject: Overhaul Porsche 931 S1 engine
The engine is back! (I hope for good ).

https://i.ibb.co/NVS8102/IMG-20210328-125801.jpg
  Topic: No fuel through injectors
MOTANUL

Replies: 7
Views: 5393

PostForum: 931 Tech.   Posted: Mon Mar 22, 2021 3:10 am   Subject: No fuel through injectors
In most cases it is the electric fuel pump. Even if it is not completely blocked, it can put less pressure than it would be necessary.
Better check the pressure first.

I have 2 old pumps that work ...
  Topic: Overhaul Porsche 931 S1 engine
MOTANUL

Replies: 49
Views: 33548

PostForum: 931 Tech.   Posted: Thu Mar 11, 2021 12:44 am   Subject: Overhaul Porsche 931 S1 engine

A subsequent check of the PET revealed that both turbo oil flange fittings use NO gaskets, simply relying on o-rings.

OK. Thank you - I will do so.
  Topic: Overhaul Porsche 931 S1 engine
MOTANUL

Replies: 49
Views: 33548

PostForum: 931 Tech.   Posted: Thu Mar 11, 2021 12:41 am   Subject: Overhaul Porsche 931 S1 engine
I would not use that gasket; my last turbo rebuild came with it too, but it's not right - just the o-ring.

Before, he only had that o-ring and no oil flowed at this joint. I already ordered that o- ...
  Topic: Overhaul Porsche 931 S1 engine
MOTANUL

Replies: 49
Views: 33548

PostForum: 931 Tech.   Posted: Thu Mar 11, 2021 12:39 am   Subject: Overhaul Porsche 931 S1 engine

I lowered my engine temps and I like it a lot..
I forget what fans do what as oem, but that combination should work..

I will first check how the water temperature is after the engine repair (I r ...
 
Page 1 of 11 Goto page 1, 2, 3 ... 9, 10, 11  Next
All times are GMT + 10 Hours
Jump to:  


Powered by phpBB © 2001, 2005 phpBB Group