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 )

25 Pages V « < 18 19 20 21 22 > »   
 Reply to this topicStart new topic
> Cairo's Six - 3.6 in and running great!
ClayPerrine
post Jul 28 2024, 09:57 AM
Post #381


Life's been good to me so far.....
***************

Group: Admin
Posts: 15,949
Joined: 11-September 03
From: Hurst, TX.
Member No.: 1,143
Region Association: NineFourteenerVille
QUOTE(Cairo94507 @ Jul 28 2024, 07:24 AM) *

@rick 918-S I don't think it is low fuel pressure. When we first turned the key to power the systems, I had maybe 2 gallons of gas in the tank. We could hear the fuel pump pumping and it quickly was pouring gas back into the tank via the return line- sounded like a garden hose pouring water. But still, it is a good idea to throw a fuel pressure gauge in line to see... you never know. (IMG:style_emoticons/default/beerchug.gif)

@frankieshooz Thanks a bunch, let's hope it comes out as nice and we had planned. Once you get your car back from PMB we have to meet up at one of the gatherings. I would love to see your car. (IMG:style_emoticons/default/beerchug.gif)

@ClayPerrine - Those injectors look nice and would not break the bank either. I see they are presently out of stock. I have saved that page and will check to see when they are available. Even if we service mine, new injectors might be nice. (IMG:style_emoticons/default/beerchug.gif)


That's not the only place you can get them. Search around for the best price and availability.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Cairo94507
post Jul 29 2024, 05:49 PM
Post #382


Michael
**********

Group: Members
Posts: 10,126
Joined: 1-November 08
From: Auburn, CA
Member No.: 9,712
Region Association: Northern California
I just ordered the vacuum canister for the resonance flap. I did not have one....what the heck? My understanding is that comes into play at higher RPM's. (IMG:style_emoticons/default/confused24.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Steve
post Jul 29 2024, 08:21 PM
Post #383


914 Guru
*****

Group: Members
Posts: 5,764
Joined: 14-June 03
From: Orange County, CA
Member No.: 822
Region Association: Southern California
QUOTE(Cairo94507 @ Jul 29 2024, 04:49 PM) *

I just ordered the vacuum canister for the resonance flap. I did not have one....what the heck? My understanding is that comes into play at higher RPM's. (IMG:style_emoticons/default/confused24.gif)

I left mine connected, but SMC and Paragon list it as part of the air injection. https://www.paragon-products.com/Vacuum-Res....110.140.03.htm So I am curious if it’s needed.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ClayPerrine
post Jul 30 2024, 05:42 AM
Post #384


Life's been good to me so far.....
***************

Group: Admin
Posts: 15,949
Joined: 11-September 03
From: Hurst, TX.
Member No.: 1,143
Region Association: NineFourteenerVille
QUOTE(Cairo94507 @ Jul 29 2024, 06:49 PM) *

I just ordered the vacuum canister for the resonance flap. I did not have one....what the heck? My understanding is that comes into play at higher RPM's. (IMG:style_emoticons/default/confused24.gif)


There is a check valve and a vacuum canister in the line to the resonance flap. It is needed to keep the resonance flap open at full throttle. The manifold vacuum goes to zero at full throttle, and the resonance flap would close when it is needed the most. The canister provides enough vacuum reserve to keep it open. The check valve keeps it from dumping to the intake plenum that is at zero vacuum.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Cairo94507
post Jul 30 2024, 07:11 AM
Post #385


Michael
**********

Group: Members
Posts: 10,126
Joined: 1-November 08
From: Auburn, CA
Member No.: 9,712
Region Association: Northern California
Ohhhh... now I have to find a check valve. (IMG:style_emoticons/default/beerchug.gif)

Greg was able to take the injectors to the shop to get them serviced. I can't wait to get back out there so we can install them and see if that helped. (IMG:style_emoticons/default/confused24.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
technicalninja
post Jul 30 2024, 08:35 AM
Post #386


Advanced Member
****

Group: Members
Posts: 2,087
Joined: 31-January 23
From: Granbury Texas
Member No.: 27,135
Region Association: Southwest Region
Look to the AC world if Porsche is excessive on price.

Most of the dash systems from 20 years back had vacuum controls.

The check valves and vacuum canisters are sources of problems.

Need MORE volume in the canister?

VW water pumpers had what looked like a bunch of frog's eggs clipped to the hood.

Those are the best canisters of all...
User is online!Profile CardPM
Go to the top of the page
+Quote Post
technicalninja
post Jul 30 2024, 08:36 AM
Post #387


Advanced Member
****

Group: Members
Posts: 2,087
Joined: 31-January 23
From: Granbury Texas
Member No.: 27,135
Region Association: Southwest Region
I've got a couple of brand new MOPAR valves.

I'd ship one for free if it would help...
User is online!Profile CardPM
Go to the top of the page
+Quote Post
Steve
post Jul 30 2024, 10:37 AM
Post #388


914 Guru
*****

Group: Members
Posts: 5,764
Joined: 14-June 03
From: Orange County, CA
Member No.: 822
Region Association: Southern California
QUOTE(Cairo94507 @ Jul 30 2024, 06:11 AM) *

Ohhhh... now I have to find a check valve. (IMG:style_emoticons/default/beerchug.gif)

Greg was able to take the injectors to the shop to get them serviced. I can't wait to get back out there so we can install them and see if that helped. (IMG:style_emoticons/default/confused24.gif)

(IMG:style_emoticons/default/thisthreadisworthlesswithoutpics.gif)
Curious what valve you are referring to? This one? https://www.pelicanparts.com/More_Info/9556...amp;SVSVSI=0643
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
eric9144
post Jul 30 2024, 01:57 PM
Post #389


Advanced Member
****

Group: Members
Posts: 2,755
Joined: 30-March 11
From: San Diego, CA
Member No.: 12,876
Region Association: Southern California
(IMG:style_emoticons/default/piratenanner.gif) so close (IMG:style_emoticons/default/driving.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Cairo94507
post Jul 30 2024, 03:13 PM
Post #390


Michael
**********

Group: Members
Posts: 10,126
Joined: 1-November 08
From: Auburn, CA
Member No.: 9,712
Region Association: Northern California
OK, the injector shop said the injectors were fine. So the hunt continues for why it is running rich and rough at low RPM. (IMG:style_emoticons/default/beerchug.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
roundtwo
post Jul 30 2024, 10:23 PM
Post #391


Member
**

Group: Members
Posts: 311
Joined: 9-February 20
From: Petaluma, CA
Member No.: 23,905
Region Association: Central California
Great project and progress Michael. I’ve been watching from the sidelines and learning along from you and the pit crew (IMG:style_emoticons/default/clap56.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ClayPerrine
post Jul 31 2024, 05:11 AM
Post #392


Life's been good to me so far.....
***************

Group: Admin
Posts: 15,949
Joined: 11-September 03
From: Hurst, TX.
Member No.: 1,143
Region Association: NineFourteenerVille
QUOTE(Cairo94507 @ Jul 30 2024, 04:13 PM) *

OK, the injector shop said the injectors were fine. So the hunt continues for why it is running rich and rough at low RPM. (IMG:style_emoticons/default/beerchug.gif)


Did you replace the O-rings under the intakes? Vacuum leaks will cause rough running.

Also, check to make sure the distributor is installed correctly. The injection is sequential, and if the distributor is installed wrong, it will run rough.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Cairo94507
post Jul 31 2024, 06:08 AM
Post #393


Michael
**********

Group: Members
Posts: 10,126
Joined: 1-November 08
From: Auburn, CA
Member No.: 9,712
Region Association: Northern California
@roundtwo - Thanks- I appreciate that. I look forward to seeing your car again.

@ClayPerrine - We did not replace the O-rings under the intake. We believe the distributor dropped right in the way it came out.... I will talk to Greg about that.

Thank you guys. (IMG:style_emoticons/default/beerchug.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Steve
post Jul 31 2024, 06:30 AM
Post #394


914 Guru
*****

Group: Members
Posts: 5,764
Joined: 14-June 03
From: Orange County, CA
Member No.: 822
Region Association: Southern California
QUOTE(Cairo94507 @ Jul 31 2024, 05:08 AM) *

@roundtwo - Thanks- I appreciate that. I look forward to seeing your car again.

@ClayPerrine - We did not replace the O-rings under the intake. We believe the distributor dropped right in the way it came out.... I will talk to Greg about that.

Thank you guys. (IMG:style_emoticons/default/beerchug.gif)

The pulley should be on TDC (red mark) and both distributors should point to the line. Easy to see with the caps off. Could it also be the ICV? Is it also hunting at idle?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Cairo94507
post Jul 31 2024, 06:36 AM
Post #395


Michael
**********

Group: Members
Posts: 10,126
Joined: 1-November 08
From: Auburn, CA
Member No.: 9,712
Region Association: Northern California
@Steve - Thanks for the info Steve. As we continue to work this issue, we will be checking all that stuff. I appreciate your thoughts on this. (IMG:style_emoticons/default/beerchug.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
technicalninja
post Jul 31 2024, 08:24 PM
Post #396


Advanced Member
****

Group: Members
Posts: 2,087
Joined: 31-January 23
From: Granbury Texas
Member No.: 27,135
Region Association: Southwest Region
Mailed check valve today.

Incoming!
User is online!Profile CardPM
Go to the top of the page
+Quote Post
ClayPerrine
post Jul 31 2024, 08:42 PM
Post #397


Life's been good to me so far.....
***************

Group: Admin
Posts: 15,949
Joined: 11-September 03
From: Hurst, TX.
Member No.: 1,143
Region Association: NineFourteenerVille
I was talking with Betty about this at dinner. And I thought of something else to check.

Make sure both coils are firing. The engine will run on one ignition, but it will do so badly. The pistons are large enough to need both coils to run smooth.

Put a timing light on each coil wire and make sure they are both firing.

Mine wasn't firing on both cylinders initially. I had a bad igniter.

Hope that helps!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mb911
post Aug 1 2024, 04:24 AM
Post #398


914 Guru
*****

Group: Members
Posts: 7,358
Joined: 2-January 09
From: Burlington wi
Member No.: 9,892
Region Association: Upper MidWest
QUOTE(ClayPerrine @ Jul 31 2024, 06:42 PM) *

I was talking with Betty about this at dinner. And I thought of something else to check.

Make sure both coils are firing. The engine will run on one ignition, but it will do so badly. The pistons are large enough to need both coils to run smooth.

Put a timing light on each coil wire and make sure they are both firing.

Mine wasn't firing on both cylinders initially. I had a bad igniter.

Hope that helps!

(IMG:style_emoticons/default/agree.gif)

Had a 964 that had a bad coil and it ran terrible. Unplugged the one coil and it ran better. Bought a new replacement for the bad one and all was good
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Cairo94507
post Aug 1 2024, 06:08 AM
Post #399


Michael
**********

Group: Members
Posts: 10,126
Joined: 1-November 08
From: Auburn, CA
Member No.: 9,712
Region Association: Northern California
@ClayPerrine @MB911 = Excellent tip. I am. headed to Greg's this morning with the list of things to check. We shall see. (IMG:style_emoticons/default/beerchug.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
930cabman
post Aug 1 2024, 10:29 AM
Post #400


Advanced Member
****

Group: Members
Posts: 3,776
Joined: 12-November 20
From: Buffalo
Member No.: 24,877
Region Association: North East States
QUOTE(Cairo94507 @ Aug 1 2024, 06:08 AM) *

@ClayPerrine @MB911 = Excellent tip. I am. headed to Greg's this morning with the list of things to check. We shall see. (IMG:style_emoticons/default/beerchug.gif)


Hopefully "the list" is getting smaller (IMG:style_emoticons/default/aktion035.gif)
User is online!Profile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

25 Pages V « < 18 19 20 21 22 > » 
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: 22nd December 2024 - 11:09 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 ...