Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 914 & 914-6 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Potter's Avatar
 
Join Date: Sep 2002
Location: Dayton, OH
Posts: 299
Send a message via AIM to Potter
Angry GROUND point locations?

I'm pulling my hair out. Super slow turn on the starter....hot, cold, does not matter. Plug in to wall outlet (via converter) and it starts right up. Without this juice from the outlet, the starter will groan a couple of turns and then it is as if the battery is dead.......but the lights, etc still work fine.

New starter. New Battery. Cleaned ground from starter to tranny. Cleaned ground from battery to body. New connections at battery. Cleaned all visible elec connections. Read the tech articles and followed advice.

NOTHING is making a snit of difference in the problem. I've been waiting for Alan Funt to jump out with a camera crew....but I'm having my doubt on that too.

Where are any grounding points that I should check? I have done the obvious stuff. I'm going bonkers.
__________________
'73 914 2.0
"Seriously Honey, the part was really really cheap...........honestly"
Old 04-05-2003, 05:49 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered User
 
chrisreale's Avatar
 
Join Date: Aug 2001
Location: San Francisco Ca
Posts: 697
FI ground points are underneath the phlenum, on three spade connectors. Might be an ignition switch issue...
__________________
1973 914 2.0 PCA Member GGRwww.pelicanparts.com/gallery/chrisreale/
www.914club.com
Old 04-05-2003, 06:21 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered User
 
Join Date: Oct 2002
Location: Colgate, WI
Posts: 275
Garage
There is another ground to body connection behind the relay board (remove the relay board cover to see it attached to the inner left 1/4 panel)

Also check the grounds in the headlight buckets.

I agree with chrisreale on a possible ignition switch problem. Is that connection solid? (Big yellow wire to spade connector at starter)
Don
__________________
Don Kiepert
'73 Big Bore
'02 GTI 1.8T
Race a Porsche - There's more to life than left turns!
Old 04-05-2003, 06:34 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Administrator
 
Dave at Pelican Parts's Avatar
 
Join Date: Dec 1969
Location: Silly-Con Valley
Posts: 14,087
Garage
Send a message via AIM to Dave at Pelican Parts Send a message via Yahoo to Dave at Pelican Parts
Starter circuit:

Power from battery (+) terminal directly through large wire to stud on starter. Ground path is through starter case to tranny case to ground strap to chassis to battery ground strap to battery (-) post.

Check and clean all of those connections. Yes, that means removing the starter to clean it. You might also consider running a large ground wire from a starter mounting bolt to the battery ground, but I regard that as an ugly patch, mostly for testing.

In general, problems with the ignition switch and solenoid and such result in no cranking at all (just a click or nothing). So I would tend to suspect the other parts of the circuit that I mentioned above.

--DD
__________________
Pelican Parts 914 Tech Support

A few pics of my car: http://www.pelicanparts.com/gallery/Dave_Darling
Old 04-05-2003, 09:09 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered User
 
Join Date: Feb 2002
Location: Tacoma WA
Posts: 1,379
if the trans to body strap is the old oem, braided copper, some times just cleaning it may not be enough. pehaps a NEW strap is in order, relatively cheap and easy. eliminate that potential prob for another 30 yrs, and if the problem persists you know for sure it's something else.

kevin
__________________
here? not so much i think. high five!!!
Old 04-06-2003, 10:26 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Registered User
 
Potter's Avatar
 
Join Date: Sep 2002
Location: Dayton, OH
Posts: 299
Send a message via AIM to Potter
Yea, I thought of that too Kevin.......I put on a new one and then even added ANOTHER one for good measure. I also replace the wires from battery to starter.

I'm going to check the grounds in the headlights and behind the relay board........I'd check the FI point grounds under the PHLENUM if I had even the foggiest idea what a phlenum was.......I thought that was a female reproductive organ or something.........

I'll try the DD ugly wire patch too.

I admit that I am intimidated by the ignition switch check. Just seems like something I could REALLY screw up. Does one just replace the switch and hope that was the problem....or is there some means by which I can SEE that it is faulty? I'm supposing that it does not have the little finger push pads on it like Duracell batteries that tell you if it is good or not.
__________________
'73 914 2.0
"Seriously Honey, the part was really really cheap...........honestly"
Old 04-06-2003, 10:53 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
Registered User
 
Join Date: Oct 2002
Location: Colgate, WI
Posts: 275
Garage
"I thought it was a female reproductive organ or something"...

I know it's easy to make that mistake on the Phlenum, but I believe "Volvo" is part of the female reproductive system.

But then again, I've got my own mess to fix! Back to the garage...
__________________
Don Kiepert
'73 Big Bore
'02 GTI 1.8T
Race a Porsche - There's more to life than left turns!
Old 04-06-2003, 12:17 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Administrator
 
Dave at Pelican Parts's Avatar
 
Join Date: Dec 1969
Location: Silly-Con Valley
Posts: 14,087
Garage
Send a message via AIM to Dave at Pelican Parts Send a message via Yahoo to Dave at Pelican Parts
A plenum is a chamber for stuff to flow through. The thing that the throttle body and intake runners attach to is a plenum. It is also called the intake manifold, though that can also encompass the intake runner pipes as well.

The FI grounds are on the crankcase seam, up near the back of the engine. That winds up being under the plenum--mostly.

--DD
__________________
Pelican Parts 914 Tech Support

A few pics of my car: http://www.pelicanparts.com/gallery/Dave_Darling
Old 04-06-2003, 12:22 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)
Registered User
 
Potter's Avatar
 
Join Date: Sep 2002
Location: Dayton, OH
Posts: 299
Send a message via AIM to Potter
Quote:
A plenum is a chamber for stuff to flow through. The thing that the throttle body and intake runners attach to is a plenum. It is also called the intake manifold, though that can also encompass the intake runner pipes as well.
This seems consistant with my original thought.......
__________________
'73 914 2.0
"Seriously Honey, the part was really really cheap...........honestly"
Old 04-06-2003, 02:33 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)
Registered User
 
3D914's Avatar
 
Join Date: May 2001
Location: Benson, AZ
Posts: 817
Garage
Potter,

Just to clarify, the ground connection behind the "plenum" (although it may need cleaning) should not affect your starter performance, as this is the ground for the ECU and FI harness.

Following Dave's suggestions should identify whether the problem is directly with that circuits ground. If not, then the ignition is a likely candidate.

My $0.02
__________________
Gerard
74-914 White - Soon to be a custom 3.2L Six 87-924S 2.5L Artic White - SOLD 74-914 2.0L Ravenna Green - SOLD
Old 04-07-2003, 12:03 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #10 (permalink)
Registered User
 
Join Date: Jul 2001
Location: mahtomedi, mn 55115
Posts: 239
Garage
Actually, I think "Volvo" is greek for "ugly car that always runs" . The wagons, in the hands of teenage sons, can be a somewhat effective form of birth control.
__________________
"Clutchtubedoorhandlesbrokeclockgaugeswipersdontwo rkbatteryboxrustdroppedvalveseatspongybrakesandten footshiftlinkageandIstillloveit!"
Old 04-10-2003, 04:07 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #11 (permalink)
Registered User
 
Join Date: Oct 2002
Location: Colgate, WI
Posts: 275
Garage
gaurds73/2.0,
I may tend to disaggree on the "effective method of birth control" issue. I was a "teenage son" once, and the only "vehicle" that may have made me think twice about not using it as a rolling motel was a squad car!
Don
__________________
Don Kiepert
'73 Big Bore
'02 GTI 1.8T
Race a Porsche - There's more to life than left turns!
Old 04-11-2003, 03:16 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #12 (permalink)
 
Registered User
 
Join Date: Feb 2002
Location: Tacoma WA
Posts: 1,379
potter, is there the sound of an engine running in the garage yet ? how is the new one? you owe me some pictures. did you spring for the camera?

kevin
__________________
here? not so much i think. high five!!!
Old 04-11-2003, 05:19 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #13 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 04:59 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.