They do that to load the engine down.
setting my timing
Drifting
Joined: Mar 2005
Posts: 1,923
Likes: 0
From: GA
Disconnect the EST wire (brown W black stripe) back by the firewall on towards the passenger side. It is a single wire that comes out of a loom, has a single wire connector on it and then goes back in the loom further along.
Block the wheels, set the parking break, start the car (ignore the check eng light), let the idle settle in, put the car in D (if auto) and set the timing to 6* BTDC. Put in park, turn off the car, reconnect the EST wire, either disconnect the neg battery terminal for 30 seconds or remove the the ecm fuse located on a pigtail along the positive cable. Reconnect battery/reinstall fuse. Remove the blocks from the wheels and you are set.
Block the wheels, set the parking break, start the car (ignore the check eng light), let the idle settle in, put the car in D (if auto) and set the timing to 6* BTDC. Put in park, turn off the car, reconnect the EST wire, either disconnect the neg battery terminal for 30 seconds or remove the the ecm fuse located on a pigtail along the positive cable. Reconnect battery/reinstall fuse. Remove the blocks from the wheels and you are set.
Melting Slicks
Joined: Apr 2002
Posts: 2,118
Likes: 0
From: St. Charles, MO Route 66 Corvette Club
Morley: I have set the timing on my 89 by having the trannie in Drive and in Park. It does not seem to matter on the timing result as they are the same. What is the reason for setting the timing in Drive? jUst curious!
SAM
SAM
Pro
Joined: Jun 2004
Posts: 646
Likes: 0
From: Santee Ca
Originally Posted by Sam Lam
Morley: I have set the timing on my 89 by having the trannie in Drive and in Park. It does not seem to matter on the timing result as they are the same. What is the reason for setting the timing in Drive? jUst curious!
SAM
SAM
Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
First time I've ever heard about putting it in D to set the timing-of course this is my first vette with an auto. Bought a spectre timing tab-neat looking thing with a slide indicator you can lock down-I'll probably put some lock tight in the screw holes.Then check the timing in D.
Pro
Joined: Jun 2004
Posts: 646
Likes: 0
From: Santee Ca
Originally Posted by rick lambert
First time I've ever heard about putting it in D to set the timing-of course this is my first vette with an auto. Bought a spectre timing tab-neat looking thing with a slide indicator you can lock down-I'll probably put some lock tight in the screw holes.Then check the timing in D.
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4th Gear
Joined: Feb 2006
Posts: 4
Likes: 0
Having a problem with mine also, it is a 94 model. Just installed the distributor (spline type master spline ) base timing is extremely low. It is a reman dist. and I know I am going to have to pull the water pump off and replace it, but any ideas as to why such low timing ?
