Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

10 Pages V « < 5 6 7 8 9 > »   
 Reply to this topicStart new topic
> Doug's A/C System, R&D/Build Thread
friethmiller
post Jul 31 2021, 09:21 PM
Post #121


Member
**

Group: Members
Posts: 463
Joined: 10-February 19
From: Austin, TX
Member No.: 22,863
Region Association: Southwest Region
Here's the final mock-up of the A/C compressor before installing the engine. Two things I learned here. 1) Tacking the legs to the mount with the compressor installed and lined up worked very well and saved a bunch of time; 2) the oil filler tube is going to be in the way of the compressor and something will need to be modified. I know Doug extended his filler tube to accommodate the compressor. I'm going to see I can get a flat allen head bolt to provide enough clearance for the oil filler cap to screw on. The last pic shows how I tried, and failed, to get enough space from grinding down the offending compressor bolt.

Attached Image Attached Image Attached Image
User is online!Profile CardPM
Go to the top of the page
+Quote Post
djway
post Jul 31 2021, 10:37 PM
Post #122


Senior Member
***

Group: Members
Posts: 787
Joined: 16-October 15
From: Riverside
Member No.: 19,266
Region Association: Southern California
If you shorten the filler would it clear?
I used epoxy or JB weld.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
76-914
post Jul 31 2021, 11:00 PM
Post #123


Repeat Offender & Resident Subaru Antagonist
**********

Group: Members
Posts: 13,492
Joined: 23-January 09
From: Temecula, CA
Member No.: 9,964
Region Association: Southern California
Does that bolt screw into a nut welded in place or a tapped opening on the bracket? If so maybe use an elevator bolt and nut one diameter smaller to pass through? (IMG:style_emoticons/default/beerchug.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
914sgofast2
post Aug 1 2021, 08:09 AM
Post #124


Senior Member
***

Group: Members
Posts: 613
Joined: 10-May 13
From: El Dorado Hills, CA
Member No.: 15,855
Region Association: None
How are you going to set and check ignition timing with the ac compressor mounted right over the timing port?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
friethmiller
post Aug 1 2021, 10:47 AM
Post #125


Member
**

Group: Members
Posts: 463
Joined: 10-February 19
From: Austin, TX
Member No.: 22,863
Region Association: Southwest Region
QUOTE(914sgofast2 @ Aug 1 2021, 09:09 AM) *

How are you going to set and check ignition timing with the ac compressor mounted right over the timing port?

As mentioned before by Doug, the timing can be set/checked with the hole at the back of the case against the fly wheel. I did that by rotating the engine to the timing mark and then painting that spot on the flywheel. You can also remove the compressor from the mount with just 4 bolts.

Attached Image
User is online!Profile CardPM
Go to the top of the page
+Quote Post
friethmiller
post Aug 1 2021, 11:09 AM
Post #126


Member
**

Group: Members
Posts: 463
Joined: 10-February 19
From: Austin, TX
Member No.: 22,863
Region Association: Southwest Region
QUOTE(djway @ Jul 31 2021, 11:37 PM) *

If you shorten the filler would it clear?
I used epoxy or JB weld.

Perhaps. Could also get a inch bigger belt so the compressor would be above the cap. Going to wait and see how much room I have in the engine bay once the engine is installed.
User is online!Profile CardPM
Go to the top of the page
+Quote Post
friethmiller
post Aug 1 2021, 11:15 AM
Post #127


Member
**

Group: Members
Posts: 463
Joined: 10-February 19
From: Austin, TX
Member No.: 22,863
Region Association: Southwest Region
QUOTE(76-914 @ Aug 1 2021, 12:00 AM) *

Does that bolt screw into a nut welded in place or a tapped opening on the bracket? If so maybe use an elevator bolt and nut one diameter smaller to pass through? (IMG:style_emoticons/default/beerchug.gif)

The offending bolt is a compressor bolt (back housing). I believe it’s an M8 with a fine 1.0 pitch. It might be hard(er) to find in a flat/low profile replacement. I’ll check with Belmetric and see what they have.
User is online!Profile CardPM
Go to the top of the page
+Quote Post
Warren914
post Aug 1 2021, 01:22 PM
Post #128


Member
**

Group: Members
Posts: 93
Joined: 26-February 21
From: Nova Scotia
Member No.: 25,265
Region Association: Canada
Why are you mounting the compressor on top of the engine? SD7H13 and similar will mount to the side closer to the battery. I've seen photos and it looks good. Gilmore Enterprises sells the mounts!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
friethmiller
post Aug 1 2021, 09:01 PM
Post #129


Member
**

Group: Members
Posts: 463
Joined: 10-February 19
From: Austin, TX
Member No.: 22,863
Region Association: Southwest Region
QUOTE(Warren914 @ Aug 1 2021, 02:22 PM) *

Why are you mounting the compressor on top of the engine? SD7H13 and similar will mount to the side closer to the battery. I've seen photos and it looks good. Gilmore Enterprises sells the mounts!

Because I don’t want to cut into the side of my engine bay and tin to side mount the compressor. I just spent way too much time repairing/replacing all the metal in the engine bay. It’s a better location for me. You can certainly go that route if you want.
User is online!Profile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post Aug 2 2021, 04:37 AM
Post #130


I am Tangerine Racing
*****

Group: Members
Posts: 7,910
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None
QUOTE(friethmiller @ Aug 1 2021, 11:01 PM) *

QUOTE(Warren914 @ Aug 1 2021, 02:22 PM) *

Why are you mounting the compressor on top of the engine? SD7H13 and similar will mount to the side closer to the battery. I've seen photos and it looks good. Gilmore Enterprises sells the mounts!

Because I don’t want to cut into the side of my engine bay and tin to side mount the compressor. I just spent way too much time repairing/replacing all the metal in the engine bay. It’s a better location for me. You can certainly go that route if you want.

An AC compressor in the stock location interferes with the HE on my header, so your choice to move it was perfect.
I did some development on a top mounted AC compressor but abandoned the project. This looks good.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
friethmiller
post Aug 2 2021, 07:19 AM
Post #131


Member
**

Group: Members
Posts: 463
Joined: 10-February 19
From: Austin, TX
Member No.: 22,863
Region Association: Southwest Region
Wow! Glad I went this route. Thanks, Chris. All credit goes to Doug (dlee6204) who started this thread. The pulley standoff was based on his design and he went out of his way to assist me in modifying the compressor mount for my Sanden 508 compressor.
User is online!Profile CardPM
Go to the top of the page
+Quote Post
friethmiller
post Aug 4 2021, 08:43 AM
Post #132


Member
**

Group: Members
Posts: 463
Joined: 10-February 19
From: Austin, TX
Member No.: 22,863
Region Association: Southwest Region
Ok, I have had a few questions about the A/C mount and how I assembled everything. Since the dimensions b/w the mount ears on the Sanden 508 is approximately 82mm (pic 1), the two side pieces between the U-shaped brackets were cut to 80mm (pic 2). These two pieces slot into the U-shaped brackets to give an overall width of 80mm (pic 3). Note, before welding these four pieces together, alignment should be checked against the blower assembly. Make sure the U-shaped bracket at the back has the relief to go over the timing hole plug (pic 4). For mounting the legs, I tacked the smallest one on first and then with the compressor on the mount on the engine, I tacked the other legs on. Keep in mind, having the compressor belt or a string mounted over the pulleys is very helpful for alignment. Removing the mount, I then finished welding the legs on the workbench. I did one more final fitment just to verify everything before priming and painting the mount.

Attached Image Attached Image Attached Image Attached Image
User is online!Profile CardPM
Go to the top of the page
+Quote Post
AZBanks
post Aug 4 2021, 04:11 PM
Post #133


Senior Member
***

Group: Members
Posts: 1,057
Joined: 7-December 05
From: New River, AZ
Member No.: 5,245
Region Association: Southwest Region
I used the Gilmore mount and a Sanden sd5h11 compressor and I did not have to cut the engine shelf.
I did have to cut the rubber attached to the shelf and the engine tins.

Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
AZBanks
post Aug 4 2021, 04:14 PM
Post #134


Senior Member
***

Group: Members
Posts: 1,057
Joined: 7-December 05
From: New River, AZ
Member No.: 5,245
Region Association: Southwest Region
I'm not trying to hijack the thread, just wanted everyone to know that you can fit some compressors on the side without cutting up the engine shelf.

Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
friethmiller
post Aug 4 2021, 06:48 PM
Post #135


Member
**

Group: Members
Posts: 463
Joined: 10-February 19
From: Austin, TX
Member No.: 22,863
Region Association: Southwest Region
@AZBanks , very cool! Good to know on the side mount. Your engine/compressor look great. Best of luck getting everything running. I know I still have a lot to do and figure out on mine.
User is online!Profile CardPM
Go to the top of the page
+Quote Post
michelko
post Aug 20 2021, 02:05 AM
Post #136


Senior Member
***

Group: Members
Posts: 867
Joined: 30-November 03
From: Germany, Lambsheim
Member No.: 1,404
Region Association: None
QUOTE(friethmiller @ Jul 31 2021, 07:21 PM) *



Attached Image

Hi that is a very clean setup. Can you number the diameter of the pulleys?
Regards Michael
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
friethmiller
post Aug 23 2021, 09:06 AM
Post #137


Member
**

Group: Members
Posts: 463
Joined: 10-February 19
From: Austin, TX
Member No.: 22,863
Region Association: Southwest Region
QUOTE(michelko @ Aug 20 2021, 03:05 AM) *

QUOTE(friethmiller @ Jul 31 2021, 07:21 PM) *



Hi that is a very clean setup. Can you number the diameter of the pulleys?
Regards Michael


Unfortunately, I cannot easily get to the pulley with the engine in the car now. I'll try and see what I can do this evening. I'm thinking the bottom (crank) pulley is about 4" (approx. 100 mm).
User is online!Profile CardPM
Go to the top of the page
+Quote Post
friethmiller
post Apr 8 2022, 07:55 PM
Post #138


Member
**

Group: Members
Posts: 463
Joined: 10-February 19
From: Austin, TX
Member No.: 22,863
Region Association: Southwest Region
Alright. My 914 is operational! Turning my attention to finally wiring up all my A/C components. Got to get the A/C cooling before the Texas heat set in down here. I've created a very ugly wiring diagram. Anybody see anything incorrect here? I can run the evap from either the #8 or #9 fuse (switched power) or directly from the battery. I ran a separate 10 gauge wire from the battery to the frunk for the condenser fan. Just need to connect all the wires to the components and the relay. Thanks all.

Attached Image
User is online!Profile CardPM
Go to the top of the page
+Quote Post
friethmiller
post Apr 11 2022, 08:15 AM
Post #139


Member
**

Group: Members
Posts: 463
Joined: 10-February 19
From: Austin, TX
Member No.: 22,863
Region Association: Southwest Region
(IMG:style_emoticons/default/icon_bump.gif) Looking for assistance on my wiring before I start hooking everything up. Thanks
User is online!Profile CardPM
Go to the top of the page
+Quote Post
friethmiller
post Apr 11 2022, 12:17 PM
Post #140


Member
**

Group: Members
Posts: 463
Joined: 10-February 19
From: Austin, TX
Member No.: 22,863
Region Association: Southwest Region
(IMG:style_emoticons/default/icon_bump.gif)
User is online!Profile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

10 Pages V « < 5 6 7 8 9 > » 
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 28th April 2024 - 08:33 AM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...