 Splitting Impeller housing, Update: tins and flaps with headers? |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| rfinegan |
 Jul 26 2021, 02:51 PM
Post
#1
|
|
Senior Member  Group: Members Posts: 1,042 Joined: 8-February 13 From: NC Member No.: 15,499 Region Association: MidAtlantic Region 
 |
I have my impeller house apart for cleaning and it appears there were alignment pins for the front and back halves . How many are there? I have 2 pins around the impeller itself. There seems to be holes in the perimeter for pins too? Please review and advise so I can dig up some more as needed
Best Robert Diagram does not show the housing in 2 pieces  |
   |
 
|
  |
Replies
| davep |
Jul 29 2021, 10:28 AM
Post
#2
|
|
914 Historian Group: Benefactors Posts: 5,226 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada  |
The heating system does offer a fair amount of restriction to airflow, so just leaving the ports open would allow more air to escape. It does seem a shame to waste cooling air. Also, if you look at the design, the two scrolls are designed differently. The bottom scroll is much larger (note the position of the pins: for equal scrolls the pins would be opposed across the fan); but the lower scroll feeds both heater ducts, the alternator, and the oil cooler in addition to the cylinders. If the heater ports were blocked off internally as in this diagram, then internal turbulence would be minimized.
Attached thumbnail(s) 
|
|
|
|
Posts in this topic
rfinegan Splitting Impeller housing Jul 26 2021, 02:51 PM
rfinegan I pulled another housing apart and it looks to hav... Jul 26 2021, 03:48 PM bkrantz My fuzzy memory agrees with 2 pins. Jul 26 2021, 07:54 PM rfinegan AWESOME..>That matches what I have too
Thanks ... Jul 27 2021, 04:17 AM rfinegan What are people in the "914 Word" doing ... Jul 27 2021, 04:20 AM
Shivers
What are people in the "914 Word" doing... Jul 27 2021, 08:06 AM Dave_Darling I have heard arguments that the cooling setup was ... Jul 27 2021, 05:27 PM worn
I have my impeller house apart for cleaning and i... Jul 27 2021, 08:28 PM Nogoodwithusernames I've been told that Jake Raby does not block o... Jul 28 2021, 01:55 PM worn
I've been told that Jake Raby does not block ... Jul 28 2021, 05:44 PM Mark Henry
I've been told that Jake Raby does not block... Jul 29 2021, 09:04 AM Dave_Darling ... in my life the laws of physics aren’t just o... Jul 29 2021, 02:10 PM 930cabman I was considering blocking off the small rectangul... Jul 28 2021, 02:59 PM mate914 Looking at the snail shaped fan or fractal. The ai... Jul 29 2021, 08:05 AM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 8th January 2025 - 12:46 AM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.