 SOT: Subie conversion difficult to turn over, What am I missing? |
|
|
|
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. |
|
|
  |
| 914helo |
 Feb 5 2008, 12:36 PM
Post
#1
|
|
Member  Group: Members Posts: 235 Joined: 29-September 04 From: Southern Utah Member No.: 2,859 Region Association: None  |
After being long delayed I'm back at work on my Suburu conversion. It's a 3.3 out of a SVX. I've put on a Kennedy adapter and clutch to use my 901 tranny. I've hooked up most of the wiring but it is slow to turn over. I have a good battery, new high-torque starter, and have verified good voltage at the starter. The engine is high compression (10:1), but thought the new starter should turn it over easier that this. It turns over, just slow and seems difficult.
I've got it on a bench next to the car with the tranny/clutch installed. Is there something obvious I'm missing? (IMG:style_emoticons/default/confused24.gif) I've done plenty of stupid stuff before. I'll post this over on the Subaru forum as well, but there's so much good car knowledge on this board I just wanted to ask here as well. Thanks |
   |
 
|
| SirAndy |
Feb 5 2008, 12:50 PM
Post
#2
|
|
Resident German Group: Admin Posts: 41,638 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(914helo @ Feb 5 2008, 10:36 AM)  I've got it on a bench next to the car with the tranny/clutch installed. how are you routing the ground? the starter get's it's ground through the tranny case. did you hooked it up with the tranny ground strap? if so, make sure all contacts are clean and the strap is in good condition ... (IMG:style_emoticons/default/bye1.gif) Andy |
|
|
|
| VaccaRabite |
Feb 5 2008, 01:20 PM
Post
#3
|
|
En Garde! Group: Admin Posts: 13,444 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
it sounds exactly like a gounding issue to me. make sure that your ground is secure and that you actually have a good circut.
Zach |
 |
|
| 914helo |
Feb 5 2008, 02:08 PM
Post
#4
|
|
Member Group: Members Posts: 235 Joined: 29-September 04 From: Southern Utah Member No.: 2,859 Region Association: None |
I do have it grounded. Since it's right next to my car (where the battery is) I have an old jumper cable connection going from my new tranny ground strap to the bolt under the rear trunk floor. Should I add another ground somewhere else?
|
|
|
|
| davep |
Feb 5 2008, 02:25 PM
Post
#5
|
|
914 Historian Group: Benefactors Posts: 5,143 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada  |
Try a solidly bolted cable from the battery ground post to a suitable bolt on the transmission. Booster cable clamps are not a good connection. I bet if you were to put a digital voltmeter between the starter case and the negative battery post (while cranking) you would see a big voltage difference on this ground circuit. That means huge losses in the ground circuit.
|
|
|
|
| TeenerTim |
Feb 5 2008, 02:25 PM
Post
#6
|
|
Senior Member Group: Members Posts: 597 Joined: 22-October 07 From: Norfolk,VA Member No.: 8,253 Region Association: MidAtlantic Region |
QUOTE(914helo @ Feb 5 2008, 03:08 PM) I do have it grounded. Since it's right next to my car (where the battery is) I have an old jumper cable connection going from my new tranny ground strap to the bolt under the rear trunk floor. Should I add another ground somewhere else? Yes, directly to the negative terminal. Not to a ground on the car. |
|
|
|
| 914helo |
Feb 5 2008, 02:58 PM
Post
#7
|
|
Member Group: Members Posts: 235 Joined: 29-September 04 From: Southern Utah Member No.: 2,859 Region Association: None |
Thanks for the tips. I will try another and better ground this afternoon.
|
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 16th May 2024 - 06:33 AM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.