 hard to start, Turning 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. |
|
|
| North Coast Jim |
 Sep 15 2016, 10:52 AM
Post
#1
|
|
Member  Group: Members Posts: 323 Joined: 11-December 15 From: Northern Ohio Member No.: 19,450 Region Association: MidAtlantic Region 
 |
New build just finished. Engine runs and a few items remain to be sorted out such as carb jetting and final timing. Issue is the starter turns over S-L-O-W-L-Y. I'm using the original relay board and jumpered across per a previous posting for ground location, see attachment. Bought and installed the Tangerine Racing carb conversion fuel pump with SS lines and installed it under the steering rack. Ran 12V wiring thru tunnel where the old return line was. I also bought a rebuilt Bosch starter and alternator from Pelican and a new alternator harness for Jeff Bowlsby which included the wiring for the starter. New Hot lead to the starter as well. New battery, a red top Optima. Any guidance on a fix is appreciated. Ignition switch ???? How to fix ??
 Attached File(s) 
Relay_bd_pin_locations.pdf ( 68.78k )
Number of downloads: 30 |
   |
 
|
  |
Replies(1 - 14)
| 914Sixer |
Sep 15 2016, 10:58 AM
Post
#2
|
|
914 Guru Group: Members Posts: 8,897 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
|
Transmission ground strap in place and clean? Battery ground strap clean? Bolt area cleaned off for good contact in both locations?
|
|
|
|
| Rand |
Sep 15 2016, 11:16 AM
Post
#3
|
|
Cross Member Group: Members Posts: 7,409 Joined: 8-February 05 From: OR Member No.: 3,573 Region Association: None |
Cranks, but just slowly... Does it do the same with jumper cables from a running car? I wouldn't think ignition switch because when they fail it typically won't crank at all.
|
|
|
|
| rhodyguy |
Sep 15 2016, 02:46 PM
Post
#4
|
|
Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,084 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
So slowly the engine won't start? Did you check the voltage on your new optima? Did you clean up the bat terminal clamps and the chassis grounds?
|
|
|
|
| Dave_Darling |
Sep 15 2016, 05:18 PM
Post
#5
|
|
914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
|
Does the engine turn over by hand?
--DD |
|
|
|
| Toast |
Sep 15 2016, 05:23 PM
Post
#6
|
|
Not bad for carrying sway bars. Group: Members Posts: 3,377 Joined: 20-January 04 From: Las Vegas Member No.: 1,580 Region Association: Southwest Region |
.
|
|
|
|
| Toast |
Sep 15 2016, 05:23 PM
Post
#7
|
|
Not bad for carrying sway bars. Group: Members Posts: 3,377 Joined: 20-January 04 From: Las Vegas Member No.: 1,580 Region Association: Southwest Region |
Check starter amp and grounds. What oil are you using and what is the weather temp where you are?
|
|
|
|
| injunmort |
Sep 15 2016, 06:12 PM
Post
#8
|
|
Senior Member Group: Members Posts: 1,024 Joined: 12-April 10 From: sugarloaf ny Member No.: 11,604 Region Association: North East States |
unless he filled the crankcase with grease, the oil has no effect on this condition, check the grounds and connection, make sure you have 12volts out of battery and 12volts at starter
|
|
|
|
| Mike Bellis |
Sep 15 2016, 06:27 PM
Post
#9
|
|
Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None 
|
How old is the battery cable to the starter?
|
|
|
|
| injunmort |
Sep 15 2016, 07:33 PM
Post
#10
|
|
Senior Member Group: Members Posts: 1,024 Joined: 12-April 10 From: sugarloaf ny Member No.: 11,604 Region Association: North East States |
op states new^
|
|
|
|
| North Coast Jim |
Sep 16 2016, 07:01 AM
Post
#11
|
|
Member Group: Members Posts: 323 Joined: 11-December 15 From: Northern Ohio Member No.: 19,450 Region Association: MidAtlantic Region
|
QUOTE(North Coast Jim @ Sep 15 2016, 12:52 PM)  New build just finished. Engine runs and a few items remain to be sorted out such as carb jetting and final timing. Issue is the starter turns over S-L-O-W-L-Y. I'm using the original relay board and jumpered across per a previous posting for ground location, see attachment. Bought and installed the Tangerine Racing carb conversion fuel pump with SS lines and installed it under the steering rack. Ran 12V wiring thru tunnel where the old return line was. I also bought a rebuilt Bosch starter and alternator from Pelican and a new alternator harness for Jeff Bowlsby which included the wiring for the starter. New Hot lead to the starter as well. New battery, a red top Optima. Any guidance on a fix is appreciated. Ignition switch ???? How to fix ?? Engine starts and runs, very well I must add. Battery is new Optima red top. Cable to starter is also new. Ground strap to the transmission is installed. Didn't think that any grounds would/could be at issue as all are new except for the battery ground cable. I will take apart the 2 ground connections and ensure they are clean and have good contact. By the way I'm using Brad Penn break in oil and the crankcase is not overfilled. Temp yesterday was an excellent 80 degrees and sunny. Great day for a 914 drive of 20 miles. First one in over 24 years for this car. Thanks all for the help. Still investigating |
|
|
|
| Movin6 |
Sep 16 2016, 09:00 AM
Post
#12
|
|
Member Group: Members Posts: 76 Joined: 27-July 09 From: New England Member No.: 10,615 Region Association: North East States |
I'd be curious about voltage at the starter as you are starting it. One item not mentioned is the solenoid relay. Usually they fail completely, but bad or dirty contacts could be an issue.
In the meantime, park on a hill! ;-) QUOTE(North Coast Jim @ Sep 16 2016, 09:01 AM) QUOTE(North Coast Jim @ Sep 15 2016, 12:52 PM) New build just finished. Engine runs and a few items remain to be sorted out such as carb jetting and final timing. Issue is the starter turns over S-L-O-W-L-Y. I'm using the original relay board and jumpered across per a previous posting for ground location, see attachment. Bought and installed the Tangerine Racing carb conversion fuel pump with SS lines and installed it under the steering rack. Ran 12V wiring thru tunnel where the old return line was. I also bought a rebuilt Bosch starter and alternator from Pelican and a new alternator harness for Jeff Bowlsby which included the wiring for the starter. New Hot lead to the starter as well. New battery, a red top Optima. Any guidance on a fix is appreciated. Ignition switch ???? How to fix ?? Engine starts and runs, very well I must add. Battery is new Optima red top. Cable to starter is also new. Ground strap to the transmission is installed. Didn't think that any grounds would/could be at issue as all are new except for the battery ground cable. I will take apart the 2 ground connections and ensure they are clean and have good contact. By the way I'm using Brad Penn break in oil and the crankcase is not overfilled. Temp yesterday was an excellent 80 degrees and sunny. Great day for a 914 drive of 20 miles. First one in over 24 years for this car. Thanks all for the help. Still investigating |
|
|
|
| porschetub |
Sep 16 2016, 01:29 PM
Post
#13
|
|
Advanced Member Group: Members Posts: 4,703 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
You mentioned you are using ''running in'' oil,has the motor been reconditioned ?,if so it may just be tight.
Get your multimeter and attach the probes to the battery then get someone to crank it over and see what voltage drop you have,you could also do the same @ the starter. IMO its not safe to assume it isn't the ignition switch,they don't always fail straight off,mine caused several different faults before finally packing it in,burnt/worn contacts in the start position of the switch could be robbing power from the battery surely. Good luck. |
|
|
|
| Jon H. |
Sep 17 2016, 05:05 AM
Post
#14
|
|
Member Group: Members Posts: 237 Joined: 1-July 11 From: Ottawa, Canada Member No.: 13,264 Region Association: Canada |
It could also be the starter. I've had other cars that had the same issue and a new starter was the fix.
Regards' Jon h. |
|
|
|
| North Coast Jim |
Sep 17 2016, 12:25 PM
Post
#15
|
|
Member Group: Members Posts: 323 Joined: 11-December 15 From: Northern Ohio Member No.: 19,450 Region Association: MidAtlantic Region
|
QUOTE(North Coast Jim @ Sep 15 2016, 12:52 PM) New build just finished. Engine runs and a few items remain to be sorted out such as carb jetting and final timing. Issue is the starter turns over S-L-O-W-L-Y. I'm using the original relay board and jumpered across per a previous posting for ground location, see attachment. Bought and installed the Tangerine Racing carb conversion fuel pump with SS lines and installed it under the steering rack. Ran 12V wiring thru tunnel where the old return line was. I also bought a rebuilt Bosch starter and alternator from Pelican and a new alternator harness for Jeff Bowlsby which included the wiring for the starter. New Hot lead to the starter as well. New battery, a red top Optima. Any guidance on a fix is appreciated. Ignition switch ???? How to fix ?? Disconnected the grounds and cleaned them thoroughly. Had to remove some paint as the body was a complete respray. Added a star type lock washer with many points of contacts. Cranks now as it should. Thanks all. |
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 2nd June 2024 - 05:23 AM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.