 Car won't start; turns over very slowly. |
|
|
|
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. |
|
|
  |
| Reber |
 May 5 2013, 11:49 AM
Post
#1
|
|
Newbie  Group: Members Posts: 7 Joined: 9-April 13 From: Washington, DC Member No.: 15,748 Region Association: MidAtlantic Region  |
Hi. I have a '75 that hasn't been run in over a year. When I try to (jump) start it, it turns over only very slowly - once every second or two, and won't start. I haven't had to deal with this situation before, so I'm a bit at sea. Could anyone suggest how I might proceed to trouble-shoot this?
Thanks in advance. |
   |
 
|
| Dr Evil |
May 5 2013, 12:12 PM
Post
#2
|
|
Send me your transmission! Group: Members Posts: 22,999 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region 
|
How is your battery?
|
|
|
|
| Reber |
May 5 2013, 01:55 PM
Post
#3
|
|
Newbie Group: Members Posts: 7 Joined: 9-April 13 From: Washington, DC Member No.: 15,748 Region Association: MidAtlantic Region |
QUOTE(Dr Evil @ May 5 2013, 02:12 PM)  How is your battery? It's drained (but not very old) -- but I reckoned the battery's state wouldn't be an issue while I was jump-starting it. |
|
|
|
| Dr Evil |
May 5 2013, 02:26 PM
Post
#4
|
|
Send me your transmission! Group: Members Posts: 22,999 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region
|
It can be. Are you crossing the terminals on the starter to see if it turns faster? If so, then your start circuit is draining too many volts and you need a remote start relay (hot start). If it still turns slow, with a charged battery, then the starter is toast.
|
|
|
|
| dangrouche |
May 5 2013, 02:26 PM
Post
#5
|
|
dangrouche Group: Members Posts: 550 Joined: 1-May 04 From: San Francisco Bay Area Member No.: 2,012 Region Association: None |
QUOTE(Reber @ May 5 2013, 12:55 PM) QUOTE(Dr Evil @ May 5 2013, 02:12 PM) How is your battery? It's drained (but not very old) -- but I reckoned the battery's state wouldn't be an issue while I was jump-starting it. you would be surprised how much a fully charged battery makes; do you have load tester to see the health of the battery, I did the same thing on a 944 that couldnt be started with a charged battery, plus the jumper cables of a running car. make sure the battery charged! |
|
|
|
| Dr Evil |
May 5 2013, 02:44 PM
Post
#6
|
|
Send me your transmission! Group: Members Posts: 22,999 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region
|
Also, I am completely ignoring that the engine has no oil, or other more egregious internal engine issues may be the cause. Start simple and move from there.
|
|
|
|
| TheCabinetmaker |
May 5 2013, 03:49 PM
Post
#7
|
|
I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Seriously? A dead battery won't start the car with a jump?
A dead battery is just sucking the juice from the jumper. You must let the jumper car run for a while so the dead battery will build enough charge to turn the engine. Btw, these cars have alternators, not generators. So does the newer car your jumping it with. An alternator will not charge a completly dead battery. |
 |
|
| TheCabinetmaker |
May 5 2013, 03:56 PM
Post
#8
|
|
I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Also, if you leave a lead acid battery on the concrete floor for a year, it will suck the life from it.
|
|
|
|
| Joe Bob |
May 5 2013, 04:09 PM
Post
#9
|
|
Retired admin, banned a few times Group: Members Posts: 17,427 Joined: 24-December 02 From: Boulder CO Member No.: 5 Region Association: None |
Just because you have a good battery as an assist, the dead battery can be a drag.....ressitance is futile.
Put a meter on the battery in the car. It needs a minimum of 12.5v. Use an external charger. Charge it......if it still turns slowly check the volts at the starter. You may have cracked cables and corrosion creating a drop. BTW, alternators are NOT designed to charge a battery, they maintain a battery. Expecting the alt to bring a battery up to full charge is a lesson on how to repalce the alternator. BTDT have the tee shirt to prove it.... |
|
|
|
| TheCabinetmaker |
May 5 2013, 04:22 PM
Post
#10
|
|
I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
QUOTE(Joe Bob @ May 5 2013, 05:09 PM) Just because you have a good battery as an assist, the dead battery can be a drag.....ressitance is futile. Put a meter on the battery in the car. It needs a minimum of 12.5v. Use an external charger. Charge it......if it still turns slowly check the volts at the starter. You may have cracked cables and corrosion creating a drop. BTW, alternators are NOT designed to charge a battery, they maintain a battery. Expecting the alt to bring a battery up to full charge is a lesson on how to repalce the alternator. BTDT have the tee shirt to prove it.... Mike joe bob z? |
|
|
|
| Reber |
May 6 2013, 10:25 AM
Post
#11
|
|
Newbie Group: Members Posts: 7 Joined: 9-April 13 From: Washington, DC Member No.: 15,748 Region Association: MidAtlantic Region |
Thanks for the suggestions and for correcting my misunderstanding of what was going on there. I'll put an external charger on it and take it from there.
|
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 17th May 2024 - 12:29 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.