Engine noise with video. Rod knock? lifter?

[OMZIG123]

I previously posted a mesage titled rod knock??? and mentioned I would post a video.

Here is the video from this morning.
http://www.youtube.com/watch?v=8DyMu0M1wrA
The noise sounds a little deeper then the recording but you can tell it is definitely from the left side and appears to come come within the valve train. Someone told me it was a rod knock but i disagree. From my understanding a rod knock doesnt go away at higher rpms and sounds much worse than this.

I havent removed the valve cover yet but curious as to the lifter/rocker arrangement. are they adjustable solid lifters or hyd lifters? Any other obvious thing I can look at to help the gurus further assist me in diagnosing the problem.

Thanks
Mike aka omzig

 

[forcefed 95]

it def, sounds like lifters tickin away. You can get a stethoscope and listen around the head and listen around the bottom end to be 100% sure. but 2g lifters are known to be noisy cause they get plugged up with sludge and shit. which gettin a set of revised lifters would be an easy fix.

 

[EagleTalonTim]

Sounds like a lifter. Rod knocks sounds alot louder. Pull your VC and check for and visible collapsed lifters. What is your oil pressure at idle?

 

[OMZIG123]

The oil pressure sits right below the lower line at idle and raises as rpms raise.
I dont have a seperate pressure gauge to get a true reading.

<img src ="http://members.cox.net/omzig/oilpress.jpg">

 

[EagleTalonTim]

That looks good. Get you a set of revised lifters and enjoy a quite engine

 

[OMZIG123]

I checked the local auto parts joints and they dont stock lifter for this car. plus they want like $20 each. I believe slowboy sells a set for like $150?

Any other sources I can use to get the lifters?

And by revised lifters are they modified or just a new design from the original?

Thanks for the info and advise!

Mike

 

[chicagoavenger]

Ebay http://cgi.ebay.com/ebaymotors/LASH...003QQitemZ130130237937QQrdZ1QQsspagenameZWDVW I hear good things about this guy on dsmtalk and his lifters.

85 shipped http://cgi.ebay.com/ebaymotors/Talo...011QQitemZ320133504891QQrdZ1QQsspagenameZWDVW

 

[forcefed 95]

Yes they are 3g revised lifters. They have bigger holes to prevent from being clogged real easy and preventing from oil to paass by and take up the slack(clearence) between the rocker, cam lobes etc. , which is why you get your tick tick tick... They are def. worth investing in set.

 

[EagleTalonTim]

Ok guys.....I have finally uploaded a video to youtube to let you hear this sound that this ####ing car is making.

Here is the link : http://www.youtube.com/watch?v=ncHEGO6O3t8

As for the oil being overfull again... I changed the oil yesterday evening, drove it 14 miles and checked it this morning. It was 1/2 quart overfull. There is NO water in the oil. When I drained the other oil that had 41 miles on it, it smelled like gas. I added SeaFoam to the new oil when I changed it yesterday and checked the oil level 3 or 4 times before I drove it. What is going on with this motor??? Where is the gas coming from that fast? Compression test was decent : 150, 155, 155, 150. What is that noise. It sounds like some REALLY bad lifters on #1 cylinder. I have tried using a really long screwdriver with my ear on the handle and could not pinpoint where the sound is coming from.

 

[jking29]

Actually to me it sounds like an exhaust leak. I would run a little sea foam through it and see if you pick up smoke from somewhere.

 

[numlock666]

Definitly not rod knock. HAHA had it twice so I know the sound too well.

 

[93_tsi_fwd]

I dont know where the oil comes from but that knocking sound is comming from your timing belt tensioner bearing. I have it in my 93 also but i just ignore it.

does it only knock around 1700 to 2200 rpm?

 

[EagleTalonTim]

That is what i figured. it has a tap from idle all the way up to 2000/2200 RPM's then it suddenly goes away after that. When it gets back down below 2000/2200 RPM's it comes back. Before I go tearing into it, I want to know where the gas in the oil could be coming from.

 

[IQuikSilvaI]

it def, sounds like lifters tickin away. You can get a stethoscope and listen around the head and listen around the bottom end to be 100% sure. but 2g lifters are known to be noisy cause they get plugged up with sludge and shit. which gettin a set of revised lifters would be an easy fix.

yep it is my car sounds just like that

 

[forcefed4]

I don't like the sound of that noise... couldn't tell you what it is off the top of my head, but it doesn't sound good. I'm sure someone has had that same sound and will chime in here though.

You're just not having any luck right now, are you?

 

[IQuikSilvaI]

well it doesnt sound like any internal engine noise (like rod knock) it is definately something on that timing belt side. you might try taking off the timing belt cover and see if you see anything obvious that would be making that noise...

 

[forcefed 95]

yeah thats crazy sounding, but the gas thats a stumper being as you have good compression across the board, casue usally gas enters your oil by leaking past the rings when they dont seal all the way.

 

[kenamond]

I just upgraded my lash adjusters (lifters) this past weekend. I got my set for $122+S&H.

Below is a picture I put together for a tech article that shows what pieces-parts are involved.

You must be logged in to view this image or video.

And here's another that shows the lifter extended and compressed. When you have lifter tick, it doesn't extend to take up the slop space, and the rocker clacks on the valve stem, cam lobe, and lash adjuster (lifter).

You must be logged in to view this image or video.

The hole in the tip of the adjuster is the same between stock and revised models, but the inlet hole in the side is larger in the revised design.

 

[IQuikSilvaI]

great informative pics!!

 

[OMZIG123]

Well I just got done taking the valve cover off and some other things. None of the lifters/lash adjusters seemed to be off the cam and valve. All seem tight when I rotated the engine around. I guess that doesnt necessarily prove anything since i was rotating it slowly compared to the engine running. On the left side two of the lifter i held together to reference and one seems like it wasnt extended out as far possibly .050 inch. I didnt look at the rest and measure nor compare since i plan to replace them all anyway.

I read somewhere (maybe vfaqs) about orienting the oil hole 180 degrees from the oil hole in the head. Is that right?

I also see extremepsi sells the 16 set for $120. So I am either going to use them or the ebay ones someone listed above.

Thanks for the info

 

[kenamond]

Well I just got done taking the valve cover off and some other things. None of the lifters/lash adjusters seemed to be off the cam and valve. All seem tight when I rotated the engine around. I guess that doesnt necessarily prove anything since i was rotating it slowly compared to the engine running. On the left side two of the lifter i held together to reference and one seems like it wasnt extended out as far possibly .050 inch. I didnt look at the rest and measure nor compare since i plan to replace them all anyway.

I read somewhere (maybe vfaqs) about orienting the oil hole 180 degrees from the oil hole in the head. Is that right?

I also see extremepsi sells the 16 set for $120. So I am either going to use them or the ebay ones someone listed above.

Thanks for the info

The lash adjusters rotate normally, so orienting the holes isn't necessary.

I don't think you'll "see" anything if you have clogged lash adjusters. All I can think is that you might have some play in the rocker for the valves that are closed, but maybe not.

 

[roadrunner2176]

Have you put in larger injectors at any time. You compression would be normal, but the extra gas coming from the injectors could be washing down your cylinder walls. Theres also the unlikely hood that one of your injectors has cracked and is just pumping fuel into the intake.

 

[perley03]

I bet that sound you are getting is a broken piston skirt. Happened 2 months ago on my Jeep Wrangler. Had the same sound as yours, went away in the higher rpm's, and lots of gas in the oil. I drove it so long that it slapped the cylinder wall enough to cause it to crack (found out this when I tore the engine down for full inspection).
The only way to tell if this is the case would be to tear off the oil pan and bring each piston to the end of their stroke and check each one. Better bet would be to tear the engine down, but just checking each one with the pan off would be the easiest and cheapest route.
There's not much more I can tell you, you will just have to tear into it and find out. Shouldn't take much more than a couple of hours to see.
Here is a pic from my cell phone when we tore the pan off.

 

[tqmx1]

Man the turbo is loose (only two bolts holding it on) That will cause one He## of a exhaust leak letting air in above the O2 sensor making the system think the engine is running lean throwing in more fuel to compansate and warshing down the cylinders.

Replace all the gaskets and bolts on the exhaust and turbo and try it again.

 

[EagleTalonTim]

well, after fully inspecting everything today, I found a pretty good crack on the exhaust side of the turbo around the middle clamp. I bet that is what is causing the car to run rich. Is there any cheap way to fix that? I was thinking of braising it together or putting some JB weld on it. probably a stupid idea though. I just cannot afford a turbo right now As for the noise....still not sure yet. I have to work on the car outside in the grass and it was really hot today. Being lazy again