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!
HOW do I advance timing?
Posted 26 January 2004 - 02:47 PM
Posted 26 January 2004 - 02:58 PM
Get a timing light, connect the power leads to the battery and the sensor lead to #1 spark plug wire. Start engine, allow it to warm up. Depending on what engine you have, the timing marks are either at the front pulley, or on the flywheel. loosen the two bolts that hold the distributor down (I'm assuming EA82 at this point) and turn it SLOWLY while pointing the timing light at the marks. You can put it wherever you want, but I recommend putting it wherever the sticker under the hood says to put it.
Posted 26 January 2004 - 03:31 PM
Whomever owned this car before me didn't take care of it. I put in the first new set of plugs the thing ever had, so even if I wasn't intent on advancing my timing for more performance, I'd want to check it anyway, lol.
Posted 26 January 2004 - 04:25 PM
Don't forget to connect the "diagnostic connectors" to the ECU first. If you have a service manual, it'll tell you what to do -- also somethin' about disconnecting the throttle body air sensor (I'm at work now and goin' from memory).
The diagnostic connectors are either under the dash (driver's side, where the ECU is), or under the hood near the wiper motor. Don't know about an 86 XT, but mine are the green connectors under the hood.
I'm sure most of us have forgotten to disconnect 'em after timing, too No ill effects, as far as I could tell, but I believe it eliminates spark advance so the ECU doesn't compensate for moving the timing.
Edit: Rallyruss is right, no "air valve" involved in adjusting timing. I hate giving out bad information.... even when I 'caveat' it with a disclaimer of bad memory Adjusted the timing last month, and I remembered something in my Chilton's. Just checked again, it was an instruction about "disconnecting vacuum advance hose" for carb models. Doesn't apply here.
Posted 26 January 2004 - 04:48 PM
Posted 27 January 2004 - 04:24 PM
you do need to connect the green connectors.
if you have an XT they should be in the trunk.
a genral rule of thumb is not to go more than 2 deg. beyond the specs. some have tried more with some sucess I assume. you wont find me risking my motor over a little power though.
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users