Uh oh... catastrophic failure. Either the balance shaft broke or the trans did.
Dibs on first bid when it goes up on ebay. Sorry to hear, people tell me I have the absolute worst luck with cars- but it looks like you may have me beat. This thing is cursed.
Justinbart
SEP 04, 06:55 PM
quote
Originally posted by BV MotorSports:
Uh oh... catastrophic failure. Either the balance shaft broke or the trans did.
My buddy Rob and I swapped out the yellow LS6 springs and retainers. I installed blue LS6 springs and ZZP titanium retainers. We also installed the short ZZP valve seals. After that, the valvetrain noise was reduced but still there. It sounds just like a sticky lifter. So I figured a quick drive around the block would 1) burn off all the oil & water from the swap and 2) free up the lifter. Well, the smoke kinda comes and goes. Not sure about that one. The car pulls well, but the lifter tick didnt go away. I went to make a U-turn at the church and head back to the house. I have to say, it felt FANTASTIC to be driving the ol' girl. As I slowed down and downshifted to 2nd I heard a grinding/scraping kind of noise. It sounded like the parking brake cable was dragging. So I headed to the house. Under power it seemed OK but the gear changes werent as smooth. Then BAMMMMMMMM all hell broke loose. There is a nasty metal on metal clanking sound. Its NOT rod knock. I made a vid, I'll post it in a bit. I drained the oil through a coffee filter, it looked perfect. Here is the funny thing, if you just bring it off idle the noise pretty much goes away. it sounds like a bag of hammers in a drier @ idle. Rob thinks something let loose in the trans or clutch. Remember, the engine runs perfectly. If you have ever broke an axle, that is pretty much the sound its making. So out comes the F23 this weekend. If its broken (or the clutch) I am seriously considering putting the 4T65HD I have setting in the shed in it.
Like mentioned above, I just have no luck with this car. It IS cursed. I asked Jeff if he would buy me a set of lifters but he pretty much washed his hands of the engine. Whatever, its only $90 for a set of LS7 lifters from ZZP. So I got to pull the intake again. Remember its siliconed together so it has to come off as one piece. You know, because gaskets are so overrated. That mother*%^&^& might as well be welded, I aint getting the UIM away from the LIM.
LOL it wont be on ebay, it owes me way too much money to ever sell it. I even thought about throwing the LQ1 from Garths car in it but, now is not the time to make any drastic decisions. I just need to cool off and think about it.
One last thing. I got to say thanks to Scott aka DH for all the support with this car. You are A OK in my book. Not the jackass troll I assumed you were all these years. In all seriousness, if you want help with all things L67, Scott is your man.
[This message has been edited by BV MotorSports (edited 09-04-2013).]
joshua riedl
SEP 04, 08:11 PM
I tried the upgraded lifters in my 3900 and they caused a lifter tick. They seem to require strong oil pressure to pump up and with the oil squirters and oil cooler the pressure wasn't there. I swapped stock lifters back in and no more problems. Unless someone with strong 3800 experience recommends them I would save the money.
BV MotorSports
SEP 04, 08:18 PM
I run the ZZP oil spring mod and have 90psi @ idle cold and 40 fully warm. The GM LS7 lifters seem a good option and are a direct replacement per ZZP.
Dude, that sucks. I bet something in the trans let loose. Every manual transmission I have grenaded has sounded like that.
Justinbart
SEP 04, 09:22 PM
The "LS7" lifters are the same part number as 3800 replacement lifters. We've never had any problems running stock stuff up here. Does the noise change when you push the clutch in? I wonder if you broke your timing chain tensioner.
The "LS7" lifters are the same part number as 3800 replacement lifters. We've never had any problems running stock stuff up here. Does the noise change when you push the clutch in? I wonder if you broke your timing chain tensioner.
Noise is constant. In gear, out of gear, clutch in/out. However, bring it up off idle and it goes from sounding like the thing is about to explode to normal. Riddle me that!
[This message has been edited by BV MotorSports (edited 09-04-2013).]
Formula
SEP 04, 09:32 PM
Try taking the water pump belt off to rule out any accesories.
BV MotorSports
SEP 04, 09:39 PM
Give it a minute, the vid will be up
Tell me that doesnt sound like its the throwout bearing/pressure plate is jacked.
[This message has been edited by BV MotorSports (edited 09-04-2013).]
In all seriousness, if you want help with all things L67, Scott is your man.