- Joined
- Nov 12, 2018
- Messages
- 1,249
- Reaction score
- 510
- Points
- 113
- Location
- Alcoa, TN
- Engine Type
- 2.8 V6
- Transmission
- Automatic
- 2WD / 4WD
- 4WD
So.... a little update for the work completed today.
I set the timing back to ~10 degrees BTDC with the vacuum unplugged from the distributor and the vacuum source plugged.
I checked timing while I gave the throttle a bump and it advanced mechanically as expected.
I then hooked up the vacuum hose back up and it made my idle erratic, I had it hooked up on a vacuum port on the carb that I believe was below carb plates so that should be manifold vacuum correct? I then tried a port on the main Tree on the intake manifold and it made the idle and timing worse.
So for now I have just left it unhooked. It appears my distributor does not like manifold vacuum. I'll have to look for a ported source to hook it too, didn't see an obvious connection to start.
I will say it is running great now and I was able to get the idle set much better as it was running a lot more stable with just the mechanical advance. No more high idle. I found bolt hole on the intake manifold that must have held something at one time, but had nothing in it now, not sure if it went all the way through the manifold to attach to the block or not, but I went ahead and plugged it with a bolt I had lying around.
It sounds great at idle and when in gear now, I'm tempted to just leave it be for a while and drive it. I also tightened the distributor hold down bolt much better this time, wow what a PITA that thing is. I finally found the correct socket extension length combo so I could get on it and snug it up.
Also, still no OD, but I can lock the TC in 3rd and running around 50 mph around town it does great. It will go back to the trans shop at the end of this month to be looked at again when I have some time off.
I set the timing back to ~10 degrees BTDC with the vacuum unplugged from the distributor and the vacuum source plugged.
I checked timing while I gave the throttle a bump and it advanced mechanically as expected.
I then hooked up the vacuum hose back up and it made my idle erratic, I had it hooked up on a vacuum port on the carb that I believe was below carb plates so that should be manifold vacuum correct? I then tried a port on the main Tree on the intake manifold and it made the idle and timing worse.
So for now I have just left it unhooked. It appears my distributor does not like manifold vacuum. I'll have to look for a ported source to hook it too, didn't see an obvious connection to start.
I will say it is running great now and I was able to get the idle set much better as it was running a lot more stable with just the mechanical advance. No more high idle. I found bolt hole on the intake manifold that must have held something at one time, but had nothing in it now, not sure if it went all the way through the manifold to attach to the block or not, but I went ahead and plugged it with a bolt I had lying around.
It sounds great at idle and when in gear now, I'm tempted to just leave it be for a while and drive it. I also tightened the distributor hold down bolt much better this time, wow what a PITA that thing is. I finally found the correct socket extension length combo so I could get on it and snug it up.
Also, still no OD, but I can lock the TC in 3rd and running around 50 mph around town it does great. It will go back to the trans shop at the end of this month to be looked at again when I have some time off.