checking out an 86 mk3 tomorrow

cre · 01-03-2010, 07:30 AM

When you torqued down the bolt did they move smoothly all the wayuntil you stopped or did they stutter or skip? It's important.

The CPS is easy. Here's how I do it broken down into tiny steps:

Remove cap so rotor is visible.
Line up circle indicator with notch on the other end.
(I don't do this, but you might as well) Use a magic marker to place a mark on the rotor and on the CPS/Dizzy housing so you can relocate/verify 0? easily if you need to.
Now, insert the shaft in the hole...
Giggle like a girl. (optional)
Before seating the CPS/Dizzy, rotate the whole assembly so the CPS/Dizzy retainer bolt's hole is in the CENTER of the eccentric opening.
Now, as long as the rotor is still at 0?, insert!

NOTE: Due to the cam and rotor's helical gears the rotor will rotate a little bit as it turns. If it doesn't line up very close to 0? when inserted try backing it out and rotating the rotor just a hair clockwise or counterclockwise to correct for the rotation. Mine's not dead on, but it's only off by 1/16" or so... With the dizzy lined up to the center of the eccentric bolt hole my timing is pretty much at 0?. You don't have to do it this way, but it makes things easier sometimes and you can then confidently mark the CPS/Dizzy housing to reflect where 10? is.

01-03-2010, 07:30 AM	#16
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	When you torqued down the bolt did they move smoothly all the wayuntil you stopped or did they stutter or skip? It's important. The CPS is easy. Here's how I do it broken down into tiny steps: Remove cap so rotor is visible. Line up circle indicator with notch on the other end. (I don't do this, but you might as well) Use a magic marker to place a mark on the rotor and on the CPS/Dizzy housing so you can relocate/verify 0? easily if you need to. Now, insert the shaft in the hole... Giggle like a girl. (optional) Before seating the CPS/Dizzy, rotate the whole assembly so the CPS/Dizzy retainer bolt's hole is in the CENTER of the eccentric opening. Now, as long as the rotor is still at 0?, insert! NOTE: Due to the cam and rotor's helical gears the rotor will rotate a little bit as it turns. If it doesn't line up very close to 0? when inserted try backing it out and rotating the rotor just a hair clockwise or counterclockwise to correct for the rotation. Mine's not dead on, but it's only off by 1/16" or so... With the dizzy lined up to the center of the eccentric bolt hole my timing is pretty much at 0?. You don't have to do it this way, but it makes things easier sometimes and you can then confidently mark the CPS/Dizzy housing to reflect where 10? is. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Lower Ball Joints - Checking here first	Grandavi	MKIII Supra	3	09-20-2008 04:04 AM
Picking up my 89 tomorrow	8uwav6	Show n Tell	2	03-31-2008 08:08 PM
Checking Thermostat	scruffboy	Non-Generation Specific Questions	6	03-09-2006 05:49 PM
Supra Noob checking in from Florida	PalmCoastMk3	Non-Generation Specific Questions	1	12-23-2005 05:08 PM
Supra Newb Just checking in	Razor	Non-Generation Specific Questions	1	12-21-2005 04:15 AM