OK, the brakes work..., ...now I need her to run reliably! |
|
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. |
|
OK, the brakes work..., ...now I need her to run reliably! |
mbrown3039 |
Mar 1 2009, 10:55 PM
Post
#1
|
Newbie Group: Members Posts: 42 Joined: 18-October 08 From: las vegas Member No.: 9,658 Region Association: Southwest Region |
So, I bled the brakes today (by myself -- go Motive Power Bleeder!) and decided it was time to take the blue bomb around the block for a test spin (and first drive since I got her!). I jump started her (still need a new battery, but I don't want to buy one that'll just sit and go bad if the car doesn't run) and let it run for a bit, then went for an unsuccesful test drive around the block. Here's the symptomology:
1. The fuel pump runs constantly. And not a pleasant "hum" or "whirr," but an oscillating, loud "buzz." 2. When the engine was cold, if I gave it gas the engine would stumble. When I released the gas pedal, it would return to a relatively smooth idle. 3. Once it warmed up (idle smoothed out a bit extra), I drove off and discovered that once I hit about 3K rpm, the engine would stumble and lose power. The car stalled halfway around the block (luckily, I chose to go uphill first) and -- with no good battery -- I gave it one good push and coasted home. Aside from a general tune-up, what else is going on here? Also, next to each spark plug there's a tube with a threaded end (but nothing attached to any of the four) and I saw some wisps of smoke coming out of them -- what are they for? Am I missing some engine parts? As always, thanks in advance, Mike |
type47 |
Mar 2 2009, 06:56 AM
Post
#2
|
Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
What year and engine and FI or carbs? My first thought is dwell and timing and working vacuum advance.
|
mbrown3039 |
Mar 2 2009, 09:06 AM
Post
#3
|
Newbie Group: Members Posts: 42 Joined: 18-October 08 From: las vegas Member No.: 9,658 Region Association: Southwest Region |
|
underthetire |
Mar 2 2009, 12:57 PM
Post
#4
|
914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
What year and engine and FI or carbs? My first thought is dwell and timing and working vacuum advance. Oops! Sorry about that -- she's a '76 FI. M Get a battery. Iv'e seen, and had, a lot of issues with bad batteries. If a cell is shorted it can drop your charging system down so things go kinda funny. I even had a 3 month old battery die in my jeep on HWY 5 leaving me stuck at a rest stop in the poring rain. At it was not even a cheap battery! |
Lo-Fi Version | Time is now: 7th June 2024 - 10:54 PM |
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 ... |