Welcome to Ultimate Subaru Message Board, my lurker friend!
|Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.
We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!
Serving the Subaru Community since May 18th, 1998!
Disty/Coil Signal Wire Gauge?
Posted 08 March 2008 - 05:42 PM
Posted 08 March 2008 - 05:51 PM
You shouldn't have to replace them. Cut them back till you get good copper and put new ring terminals on. I suppose you can replace them if you really want to, but I've never seen a need for that.
Posted 08 March 2008 - 05:55 PM
Posted 08 March 2008 - 09:17 PM
Posted 08 March 2008 - 10:56 PM
Posted 08 March 2008 - 11:04 PM
Well I adjusted my idle speed screw and the problem seems be to solved. I didn't realize that the two disty's would be that different at idle. I am guessing that is because of the steeper advance curve of the 2WD distributor.
The advance curve of the two are identical. That's a wives tale that has been perpetuated for an obscenely long time now. Also there is NO vacuum advance at idle. The vacuum supply is ported and doesn't exist when the throttle is closed. So distributor differences with respect to advance curves cannot affect idle at all. Idle timing is static.
Actually - I've found some evidence that different years/models (feedback vs. non) of the Hitachi have different spring rates for the vacuum advance pot. Right now I don't know the specifics of which models they came from as that's been lost to time and a long stay in my garage, but I have several examples awaiting testing in my shop - I'm going to map their exact advance curve.
Posted 08 March 2008 - 11:38 PM
Posted 08 March 2008 - 11:44 PM
Posted 08 March 2008 - 11:55 PM
I also JUST switched from a Hitachi to the ND on my hatch - while I rebuilt the Hitachi off it - no difference.
In the FSM there is only ONE advance curve for all vacuum advance's used - it has a graph of the curve in relation to RPM. I can scan it if you like.
I have lots of experience with lots of carbs. I've rebuilt, used, off-roaded, and streeted both distributors with both carbs, and can say that I've never found a single difference that could be attributed to the vacuum advance.
Now there might be differences between years - I would need more FSM's to know that for sure. Also some ND distributors with electronic pickup's were used on later 80's EA71's and may have a different curve. As I said I've also found different spring rates on different Hitachi vac cans. The point is that the situation is not as clear cut as "2WD vs. 4WD" - it has a lot to do with year and model as well. It's not clear that all ND's are different from all Hitachi's. The data collection to ascertain the exact differences is taking me years because this stuff is 25 years old.
You can disagree with hard evidence if you like, but a single experience does not indicate a trend. My experiences have been many, and varied, and I have not seen a consistent trend that is useful.
Posted 09 March 2008 - 04:22 AM
Posted 15 March 2008 - 04:46 AM
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users