ok, so watch this video.

im pretty sure its my pulley tensoner. it has 1 hole showing.

the performance seems to be fine, its just loud as all hell.

suggestions?

 

I'm no expert (no Holiday Inn Expresses here) but that doesn't seem to be a pulley issue but rather a valve lifter/rocker issue. Tapping, especially loud tapping like yours, up on the top of the motor seems to be too far away from the tensioner. Sorry to say, but I think you've got bigger problems than a simple SC belt.

Cheers!!

 

damn!

the performance of the car doesnt seem to be an issue.

is there a way to verify what you suggest?

 

Wait a couple of hours whilst the monkeys digest your information. They'll come back with several viable suggestions. My recommendation would be to drive the car as little as possible until you've got this figured out. Valve lifters/rockers which are misaligned could lead to damage to the pistons, cam, etc. If this was happening to Maggie, I'd have her on a lift truck to the dealership, spare no expense. Heroic Measures!!

Cheers!!

 

yeah except i dont have the cash to bring it to a shop.

i havnt driven it since thursday. its cutting into my work time. i cant go to work without the car, etc.

 

Pull the belt off and run it for a few sec. Make sure the pulley does not hit the crank pulley first

 

...and that does what? what am i looking for?

...and dont i have to lift up the engine to accomplish this?

 

With the belt off and you dont have noise you could then could rule out the engine/ valves so on. If you have noise then you rule out the SC, AC, pulley tensioner, alt.

You don't need to lift the motor to take the belt off but a belt tool of some sort to release the pulley tensioner. May find more info if you do a search on a belt change thread. Good luck

 

how can i run the engine with no belts? that doesnt make sence to me.

 

Iam just talking a few sec. of run time. Just to see if you have the noise or not

 

 

Thats not supercharger or tensioner noise; its almost certainly valve train or, less likely to me, a loose piston wrist pin.

 

Chibi - this would be, for you, a good diagnostic sequence, though a bit scary. Taking the belt off would isolate the problems by virtue of the fact that the belt seperates the two potential areas identified: tensioner or valve train. Running the engine for only a few seconds (< 30 seconds) without the belt on won't do any damages. Without the belt on, the alternator, supercharger and water pump will not spin and will help you identify the problem. Just crank the engine over and as soon as you hear the loud knocking, kill the engine. If you have the engine going and there's no loud knocking, again kill the engine. Then you should know the spot to focus on. However, getting the belt off and back on is almost impossible without a tensioner tool. Almost but not impossible. There's no need to lift the engine for this, just remove the right wheel shroud.

Having said all of that, I agree with Blazer, especially now after your statement of adding oil makes the noise quieter. Truly classic top engine mechanical symptoms which only get more expensive over time. Sorry. If it is a bad valve lifter, the potential is that the valve could punch a hole into the top of the piston or bend the valve or other scary (expensive) damage. On this page, scroll down for a picture of a piston face that has been broken and another that was scratched, from a bad valve train. If it's a bad piston wrist pin, however unlikely, this would be even more expensive as that could damage the cylinder walls, the piston connecting rod or, worse yet, cause damage to other pistons and their assemblies. Sorry for the bad news and I do wish you luck in the repairs.

Cheers!!

 

UPDATE:

i had the surgical team here and took 3/4 of my engine out in about an hour.

valve train: nothing appears to be wrong
supercharger: nothing
piston heads: nothing...

so basically im gonna see who's got a lower end for sale and vs that against a rebuild on the block as its probably a crankshaft issue.

strange during all of this i never had one idiot light come on.


here are pictures.




my fuel injectors are really nasty










so if anyone has any nice ideas...we're all ears...or a lower block.

 

Hmm.... i think I know this sound very very clearly.

Must be the chain-tensioner ! Sometimes it goes bad and then the chain does not get the right tension and start to vibrate against the guidings of the chains. This makes some noise then like you mini.

But right now, it is to late to test. Just replacing it which would be maybe 40$ of parts and then starting again would be the best solution, but your head is off and all the other things.

 

There is no chain in that motor . . .

 

So, you say the timing is controlled by a belt ?..... Look at the photos, on the right side of the engine you see the chain lying over the camshaft sprocket.

 

Disregard my post; I misread yours; sorry.

 

did you even check the other pulleys first? Mine was making the same noise and it was just the a/c clutch came apart.

 

Man, you tore that engine apart before ruling out other stuff? Crazy.

 

engine removed.

solution found.

bearing on #2 pistol MIA

parts of bearing #2 found in unknown location(s)

solution. machine shop for re-milling and assembly

pictures to follow






missing bearing



this might be the new look for me for a while...

 

Just wondering, was it only the noise that made you look for this? Do you drive your car particularly hard? I haven't been on these boards long, but I do not recall too many rod bearing failures!

 

Chibi, Would you mind giving us a little info, I promise not to say anything nasty, just gathering data.

How many miles on the engine?

What oil brand and wt do you use?

How often did you change the oil?

Was it burning oil?

Were you adding oil between changes?

If so, how much and when?

Have you ever run it dry on oil?

Have you ever noticed the oil light come oil?

thanks

YD

 

Is there no one else curious about the engine history when a failure like this happens? I'm hoping that Chibi, the OP, will respond with some good info soon.

YD

 

^ I am...I'm just waiting for the response. Like I said, a rod bearing failure isn't exactly commonplace