Checking timing |
Post Reply |
Author | |
Riley
Grand Poobah Joined: January-19-2004 Location: Portland, ME Status: Offline Points: 7948 |
Post Options
Thanks(0)
Posted: December-04-2006 at 11:20am |
Do any of you check your timing ever? I've always tuned my boats, but as I don't have a timing light, I've never checked the timing. They always run good after a new cap, rotor, points and condenser. If the timing is set right, does it get out of whack?
|
|
Jim_In_Houston
Platinum Member Joined: September-06-2004 Location: United States Status: Offline Points: 1120 |
Post Options
Thanks(0)
|
Yeh, the timing can change a little over time.... no pun intended. I think it is from timing chain strech and wear. (How do you spell strech?)
|
|
Happy owner of a '66 and a '68 Mustang
|
|
eric lavine
Grand Poobah Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
Post Options
Thanks(0)
|
add a T jim, stretch
|
|
"the things you own will start to own you"
|
|
Waterdog
Grand Poobah Joined: April-27-2006 Location: United States Status: Offline Points: 2020 |
Post Options
Thanks(0)
|
When you change the points and condenser,you change the timing. Even if the new parts are put back prefect,the old parts are worn. Set the dwell first then the timing. You need a tach-dwell meter and a timing light. Go electronic & all you need is a timing light.
|
|
Riley
Grand Poobah Joined: January-19-2004 Location: Portland, ME Status: Offline Points: 7948 |
Post Options
Thanks(0)
|
The tack and dwell will tell me how good I got it with the feeler guage? It's a PCM 240 with a presolite distributor. There's not a spot to put that GM tool in to adjust while the engine's running like on the old GM engines.
|
|
Waterdog
Grand Poobah Joined: April-27-2006 Location: United States Status: Offline Points: 2020 |
Post Options
Thanks(0)
|
Riley
Dwell = degrees ( of a circle ) that the points are closed. Use the feeler gauge to set the points in the "ball park".Not sure but it it looks like it should be 24*-30* degrees "ish" depending on the year. The tach - dwell meter I have is an old craftsman I bought at a yard sale for $10 - 30 years ago - it still does the job! As the points wear, that changes. Change the parts ,start the engine & check the dwell - shut the engine off - use the feeler gauge with a "tight" or "loose" drag on the feeler gauge to tune the dwell. Get the dwell tweeked ,it should only the a couple of ajustments ,then set the timing. Dwell has a direct affect on timimg ,but; timing has no affect on dwell. If you can change the tune-up parts YOU CAN do it ! |
|
Post Reply | |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |