jm8881
02-03-2008, 08:57 PM
Today it was a bit warm, 38*, and I had the itch to do something productive. :)
I pulled the c code intake off and installed a hummer intake. Not a J code intake but a hummer one, it was a lot shorter than the c code intake but I had an air cleaner spacer from an old 6.2 van to make up the difference. I still had to hammer on the air cleaner a smidge in the front to clear the ip. I also had to drill and install an outlet for the other cdr hose to hook up too. All went pretty smoothly.
While I had the intake out I decided to turn up the ip. Man was that a chore to find the allen head adjuster. :mad: I was going to just use the starter to bump the motor over until I could get to the adjuster but I decided to try turning the motor by hand. Much to my surprise, the motor was not too hard to turn just by grabbing the crank pully and twisting :eek:. Shouldn't a motor with 22:1 compression be harder to turn? I don't think it has a bad head gasket, I've got no leaks, no oil in the coolant, no coolant in the oil, and no bubbles in the coolant or oil. I do have some blow by that puffs out of the oil fill cap when you remove it but nothing the cdr can't easily handle.
While I had the intake off and I had the cover back on the injector pump I decided to start up the truck to check for leaks from the cover on the ip. I started up the truck, rather easily, and it ran fine. But I did see white puffs of exhaust coming from the drivers side egr hole in the head. But very little from the passenger side. What causes the white smoke and why only from the drivers side? Is it from the valve in the manifold on the drivers side? Also, this white smoke clears up within a minute of idling.
After I got it all back together, I was eager to see if there was any black smoke from turning the ip up. It never blew out any black smoke before I adjusted the pump. I pulled it out of the garage and in park I gave it some good healthy revs, which sounded way deaper than before and I have cherry bombs on it :D, and it didn't blow much of any black smoke out until the higher rpms, is that about right? You don't want too much black smoke I don't think.
Also, when I put the allen wrench into the adjuster it was pointing at about 1 o'clock. I turned it clockwise (tightened) to about 2:30. Too much? Too conservative? Correct way to turn it?
I also bumped the timing up a little. The two lines used to be perfectly alligned and I twisted the pump towards the drivers side until the line on the pump and the line on the cover were barely still touching each other. Should I do more? The motor has 133k miles, I think. It runs fine without any weird noises, I read about the metal clanking noise you can get if you go too far and I don't really want to chance ruining a $500+ part.
As far as power increase, I noticed some but I doubt anyone who has ridden in my truck will notice it, they are more likely to notice the sound difference. It feels more powerfull but I don't know. I did only drive it 2 miles since doing all this, I think I'll need to report back in a day or so when I've driven it on the highway and over some hills.
cliffs:
1. I put on a hummer intake.
2. I turned up the ip from about 1 o'clock to 2:30. Is that too much or too little?
3. I get white smoke from the drivers head out of the egr hole, what's this from?
4. When you rev the motor you don't get black smoke until high rpms, is this preferable?
5. How much timing advance is too much? I moved mine about a mm. Should I go higher? The engine has 133k miles, I think.
I pulled the c code intake off and installed a hummer intake. Not a J code intake but a hummer one, it was a lot shorter than the c code intake but I had an air cleaner spacer from an old 6.2 van to make up the difference. I still had to hammer on the air cleaner a smidge in the front to clear the ip. I also had to drill and install an outlet for the other cdr hose to hook up too. All went pretty smoothly.
While I had the intake out I decided to turn up the ip. Man was that a chore to find the allen head adjuster. :mad: I was going to just use the starter to bump the motor over until I could get to the adjuster but I decided to try turning the motor by hand. Much to my surprise, the motor was not too hard to turn just by grabbing the crank pully and twisting :eek:. Shouldn't a motor with 22:1 compression be harder to turn? I don't think it has a bad head gasket, I've got no leaks, no oil in the coolant, no coolant in the oil, and no bubbles in the coolant or oil. I do have some blow by that puffs out of the oil fill cap when you remove it but nothing the cdr can't easily handle.
While I had the intake off and I had the cover back on the injector pump I decided to start up the truck to check for leaks from the cover on the ip. I started up the truck, rather easily, and it ran fine. But I did see white puffs of exhaust coming from the drivers side egr hole in the head. But very little from the passenger side. What causes the white smoke and why only from the drivers side? Is it from the valve in the manifold on the drivers side? Also, this white smoke clears up within a minute of idling.
After I got it all back together, I was eager to see if there was any black smoke from turning the ip up. It never blew out any black smoke before I adjusted the pump. I pulled it out of the garage and in park I gave it some good healthy revs, which sounded way deaper than before and I have cherry bombs on it :D, and it didn't blow much of any black smoke out until the higher rpms, is that about right? You don't want too much black smoke I don't think.
Also, when I put the allen wrench into the adjuster it was pointing at about 1 o'clock. I turned it clockwise (tightened) to about 2:30. Too much? Too conservative? Correct way to turn it?
I also bumped the timing up a little. The two lines used to be perfectly alligned and I twisted the pump towards the drivers side until the line on the pump and the line on the cover were barely still touching each other. Should I do more? The motor has 133k miles, I think. It runs fine without any weird noises, I read about the metal clanking noise you can get if you go too far and I don't really want to chance ruining a $500+ part.
As far as power increase, I noticed some but I doubt anyone who has ridden in my truck will notice it, they are more likely to notice the sound difference. It feels more powerfull but I don't know. I did only drive it 2 miles since doing all this, I think I'll need to report back in a day or so when I've driven it on the highway and over some hills.
cliffs:
1. I put on a hummer intake.
2. I turned up the ip from about 1 o'clock to 2:30. Is that too much or too little?
3. I get white smoke from the drivers head out of the egr hole, what's this from?
4. When you rev the motor you don't get black smoke until high rpms, is this preferable?
5. How much timing advance is too much? I moved mine about a mm. Should I go higher? The engine has 133k miles, I think.