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L67 Engine Swap and Cam Decisions.



First off let me say thanks to those that have helped me out. I decided to go with a VS cam for my 40th and have been talking to PRJ about my situation and says it will pass no problem. So I will be doing two builds one vs the other XPZ on my GTX that I picked up in November last year.

I finally put the junk yard motor into the Gtp and there is a big exhaust leak from the front crossover will be fixing it tomorrow. But need some help the engine sounds ok no big concerns yet. But the valve train does sound loud and my oil pressure light is on? Could it be that the oil isn't getting up to the pushrods and rockers? Or just the sensor itself?
Is the valve train on a sc engine suppose to be this loud it's been a long time since I last drove one. Thanks in advance I hope the engine will last me long.
Here is a video of the first start up and noise.
http://www.youtube.com/watch?v=EZbBNnL2ZjM&feature=youtube_gdata_player

 
it should stop being loud and ticking after about 30 seconds when it actually gets oil up into the top half of the motor and the lifters are all pumped up. the oil light isnt a good sign.

the 3800 as a whole is a loud, ticking, ****ty sounding motor from the engine bay. yous sounds like all exhaust leak from the video, to me.
 
Bio248 said:
it should stop being loud and ticking after about 30 seconds when it actually gets oil up into the top half of the motor and the lifters are all pumped up. the oil light isnt a good sign.

the 3800 as a whole is a loud, ticking, ****ty sounding motor from the engine bay. yous sounds like all exhaust leak from the video, to me.
Click to expand...

Took off the oil filter and it is bone dry inside it has oil on top but no oil inside of it. What are the chances of the oil pump going out on these. I just would hate to pull out the engine again to replace that :/
 
that's not goot that you ran it that long without oil. theres gotta be something clogged or put together incorrect for it not to be flowing oil.
 
Bio248 said:
that's not goot that you ran it that long without oil. theres gotta be something clogged or put together incorrect for it not to be flowing oil.
Click to expand...
A total of maybe 2m all together that it was ran i know it isnt good but i had to start the car to see if i was getting oil pressure or not. I found out what the issue was ended up being the spring and cap that goes with the oil filter neck when i replaced the gasket i accidentally put it on backwards. Flipped it over started the car and right away the valve train got quieter still ticking in the vid but 20sc after i stopped it it completely went away now to put it all back together and take it for a test drive.

http://www.youtube.com/watch?v=lnZdPusdzOI&feature=youtube_gdata_player
 


i did the same thing with my motor (except it was the oil pump not getting spun, not your exact issue) and that motor lasted three days, a total of about 200 miles max.

cross your fingers.
 
Bio248 said:
i did the same thing with my motor (except it was the oil pump not getting spun, not your exact issue) and that motor lasted three days, a total of about 200 miles max.

cross your fingers.
Click to expand...

Damn 200 miles after you got the issue fixed?
How long did you run it dry?
 
a few minutes, like you did. was reading 0 oil pressure so i was trouble shooting the gauge hoping that was it. however, it literally did have zero oil pressure after i hooked up a manual gauge right to the sensor hole.

so like i said, cross your fingers and pray. i spun a couple bearings really bad and the rest of them were scored. the entire bottom end was junk.
 
Damn I really hope that doesn't happen took me 8 months to finally have time to do this. I'll be changing the transmission fluid gasket and filter haven't changed it in 5yrs out of fear if I do tranny will go out.
 
Ok need more help. For those that can help please do, I am getting tired of trying to figure it out. I have a P0300 code and can't figure it out. No specific cylinder just multiple misfire SES light flashing at times.
So far i have replaced plugs, wires, all 3 coils, ICM, ICM harness, cam sensor, and PCM with a zzp one. Getting tired of chasing this misfire. Lights also flicker with the misfire at times all of them.
 


If the lights are flickering, that sounds like a potential battery connection or ground wire problem.

Sent from my SkyRocket
 
DanGTP said:
If the lights are flickering, that sounds like a potential battery connection or ground wire problem.

Sent from my SkyRocket
Click to expand...
I think it's because of how big the misfire is.
Did a compression test and this is what I got.
1 = 75
2 = 100
3 = 0
4 = 0
5 = 103
6 = 98
I did a leak down test with the piston at top dead center and I get air out of my intake.
 


DanGTP said:
Wow! Might be time to grab a bore scope and look for damage.

Sent from my SkyRocket
Click to expand...

he said his intake valves are leaking, and a bore scope would have a hard time seeing the cause of that.

A better suggestion would be to unbolt the rockers, as for some stupid crazy reason 3800's like to crack valves open when they are supposed to be closed.
 
Good point. I was thinking of looking for broken ring lands and evidence of pieces bouncing around off the top of the piston (pieces that may cause a valve to become bent).
 
darkhorizon said:
he said his intake valves are leaking, and a bore scope would have a hard time seeing the cause of that.

A better suggestion would be to unbolt the rockers, as for some stupid crazy reason 3800's like to crack valves open when they are supposed to be closed.
Click to expand...

Would maybe getting the bolts tighter or looser help? I mean i didnt check for anything when i put the pushrods in and torqued the rockers down. i just dropped them in randomly and torqued the bolts to spec, so idk if that might be the issue here although i was told it didnt matter.
 
DanGTP said:
Good point. I was thinking of looking for broken ring lands and evidence of pieces bouncing around off the top of the piston (pieces that may cause a valve to become bent).
Click to expand...
Highly doubt it took off filter no signs of any shavings as well as all plugs seem ok. To me it seams like a valve is staying open longer then it should causing the misfire like when i did the leak test no exhaust or valve train leak or head gasket just intake which comes down to the intake valve not closing right if im not mistaken. First time doing this.
 
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