Diag my engine noise
- Thread starter 86Nick
- Start date
chopped39
Well-Known Member
- Joined
- Aug 30, 2004
What kind of oil filter are you using?
- Joined
- Apr 4, 2002
Well,
What does it sound like? eg: tick tick, pop pop, grind grind, help help.
Need clues to play the game.
However, even without clues, I'm going to submit my early guess and say blown out felpro exhaust manifold gasket.
Now, go check it with a stethascope and see if I won.
NEXT...
Dr. Mike B.
What does it sound like? eg: tick tick, pop pop, grind grind, help help.
Need clues to play the game.
However, even without clues, I'm going to submit my early guess and say blown out felpro exhaust manifold gasket.
Now, go check it with a stethascope and see if I won.
NEXT...
Dr. Mike B.
delco
What does it sound like? eg: tick tick, pop pop, grind grind, help help.
Need clues to play the game.
However, even without clues, I'm going to submit my early guess and say blown out felpro exhaust manifold gasket.
Now, go check it with a stethascope and see if I won.
NEXT...
Dr. Mike B.
sent you a link to video
- Joined
- Apr 4, 2002
Got the link.
This should be fairly simple to diagnose. You need to find out where the noise is comeing from. Is it the left side, or right. Then narrow it down from there. A stethascope is the best way. You can also hold a screwdriver against different parts and "feel" the noise. I'd start with up and down both valve covers. From just listening to the vidio, it kinda sounds like valve train. Like maybe a broken rocker arm, wiped lobe, or a lifter not pumping up. "If" the noise is from under a valve cover, take it off and see if all the rocker arms are going up and down the same. A broken rocker arm should be obvious. Let's start with this before I get too far ahead of myself.
What kind of lifters do you have?
Let us know.
Mike B.
This should be fairly simple to diagnose. You need to find out where the noise is comeing from. Is it the left side, or right. Then narrow it down from there. A stethascope is the best way. You can also hold a screwdriver against different parts and "feel" the noise. I'd start with up and down both valve covers. From just listening to the vidio, it kinda sounds like valve train. Like maybe a broken rocker arm, wiped lobe, or a lifter not pumping up. "If" the noise is from under a valve cover, take it off and see if all the rocker arms are going up and down the same. A broken rocker arm should be obvious. Let's start with this before I get too far ahead of myself.
What kind of lifters do you have?
Let us know.
Mike B.
turbo nasty
Turbo Dojo / MNTR
- Joined
- Jul 19, 2001
- Joined
- Apr 4, 2002
Flat tappet or roller?
Evans Ward
Love those LC2/ Y56 cars!
- Joined
- May 24, 2001
Can you (or someone else) post the link up as an attachment to this thread?
- Joined
- Apr 4, 2002
Can you (or someone else) post the link up as an attachment to this thread?
Here you go. Click on this.
Mike B.
Lifter Noise
I agree with the above, definetly sounds like lifter noise which could be caused by many things, bent push rod, hydraulic lifter not pumping up......etc. Find the side thats tapping pull the valve cover and go from there!
This should be fairly simple to diagnose. You need to find out where the noise is comeing from. Is it the left side, or right. Then narrow it down from there. A stethascope is the best way. You can also hold a screwdriver against different parts and "feel" the noise. I'd start with up and down both valve covers. From just listening to the vidio, it kinda sounds like valve train. Like maybe a broken rocker arm, wiped lobe, or a lifter not pumping up. "If" the noise is from under a valve cover, take it off and see if all the rocker arms are going up and down the same. A broken rocker arm should be obvious. Let's start with this before I get too far ahead of myself.
What kind of lifters do you have?
Let us know.
Mike B.
I agree with the above, definetly sounds like lifter noise which could be caused by many things, bent push rod, hydraulic lifter not pumping up......etc. Find the side thats tapping pull the valve cover and go from there!
turbo nasty
Turbo Dojo / MNTR
- Joined
- Jul 19, 2001
Rocker shafts broke?
Just a Six??
OK! Who Farted??
- Joined
- Jul 4, 2003
Tale a 2ft peice of brake line or fuel line, clamp a couple feet of vac hose on it, stick it in your ear & start looking for the Exact Spot the noise is loudest. Works every time!
no roller lifter
- Joined
- Apr 4, 2002
Well!
Anything yet?
If you've got a magnetic oil drain plug, take it out and quickly stick your other finger over the hole (preferably not scalding hot). If your drain plug looks clean, quickly stick it back in. This is good news. If your drain plug is covered in metal and looks like a Chia Pet, you most likely wiped a lobe. At this point you might as well let the oil drain out of the motor, because it needs to come apart. This would be, not so good news.
Still, I'd start with a stethascope. They're ten bucks at most auto parts places.
Let us know.
Mike Barnard
Anything yet?
If you've got a magnetic oil drain plug, take it out and quickly stick your other finger over the hole (preferably not scalding hot). If your drain plug looks clean, quickly stick it back in. This is good news.
If your drain plug is covered in metal and looks like a Chia Pet, you most likely wiped a lobe. At this point you might as well let the oil drain out of the motor, because it needs to come apart. This would be, not so good news. Still, I'd start with a stethascope. They're ten bucks at most auto parts places.
Let us know.
Mike Barnard
