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Rattling behind timing belt

 
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Old 01-27-2013, 02:02 PM
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Rattling behind timing belt

I assumed this was an exhaust shield touching something because that's what it sounds like around 3200 RPMs; a very hoarse, rattling sound. It's probably one of the bearings in the pulleys behind? I had hoped not to have to do a timing belt right away but I guess I have no choice. Anyone have any thoughts on exactly what it is?
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Old 01-27-2013, 04:21 PM
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Re: Rattling behind timing belt

Got an auto stethoscope and a pal to work the throttle? Can you be a bit more descriptive? Could it be the cover?

I have a low rpm rattle that I'll dig into soon.
Dig this, it rattles at 500 rpm (warm idle), but no higher. I turn on the fan on low, idle goes to 700, rattle goes away. Nice.. until whatever it is keeps rattling at higher revs. So I'm going to stethoscope my engine bay. While under the hood you barely hear it but climb in the cab and oh man is it awful.
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welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
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Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
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Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

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Old 01-27-2013, 04:52 PM
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Re: Rattling behind timing belt

I found out mine is the Catalytic Converter. Putting up with it for now until I get it fixed next month.
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Old 01-27-2013, 05:43 PM
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Re: Rattling behind timing belt

Details 97.. what did it sound like and when?
It's driving me crazy!!!! Arrrrrgh.
I just got it to idle right but it rattles. The idle bump or the rattle? Hmm
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Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead
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Old 01-28-2013, 12:37 AM
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Re: Rattling behind timing belt

Could be exhaust, but I had a similar problem. Come to find out, when I went to do my timing belt someone never removed the locking screw for the tensioner and it was missing springs. It was bad
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Old 01-28-2013, 12:06 PM
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Re: Rattling behind timing belt

Mike, it sounds like you have some gremlins to chase down too. I do not have a stethoscope but I am pretty sure it's behind the timing cover. It's a metal/metal sound too.

tracer, that's kinda scary to find out. The rattle is inaudible below or above that 3200RPM mark. I'm not anxious to order all the timing belt parts as the belts look to be in good shape from initial inspection. But, I guess better safe then sorry.
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Old 01-28-2013, 01:51 PM
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Re: Rattling behind timing belt

Sears sells them.
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Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead
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Old 01-28-2013, 03:32 PM
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Re: Rattling behind timing belt

10-4. I went ahead and ordered all the timing belt/water pump stuff anyway because I'm paranoid. >.<
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Old 01-28-2013, 05:33 PM
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Re: Rattling behind timing belt

A VERY long screwdriver could be an acceptable replacement for a stethoscope. Put one end to your ear, and touch the other end to where you think the sound is coming from.


If you don't know when the last time the t-belt was done....
Better safe than sorry.
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Old 01-28-2013, 06:45 PM
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Re: Rattling behind timing belt

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Originally Posted by twokexlv6coupe View Post
A VERY long screwdriver could be an acceptable replacement for a stethoscope. Put one end to your ear, and touch the other end to where you think the sound is coming from.



If you don't know when the last time the t-belt was done....
Better safe than sorry.
Dratz, I coulda saved $200 bux in the sears tool section. I can never get outta there for less. I wonder if pipe would work...

Great point, better safe than sorry. Is it a 28mm bolt he has to break loose?

Gabe, got breaker bar, good 6 pt socket and pipe for leverage? Amazon has a pulley grabber that'll hold the balancer still while you yank on the bolt.
In case you forgot, soak the bolt overnight with penetrant, like wd40.
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Quote:
Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead

Last edited by bykfixer; 01-28-2013 at 06:52 PM.
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Old 01-28-2013, 06:54 PM
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Re: Rattling behind timing belt

Quote:
Originally Posted by bykfixer View Post
Dratz, I coulda saved $200 bux in the sears tool section. I can never get outta there for less. I wonder if pipe would work...

Great point, better safe than sorry. Is it a 28mm bolt he has to break loose?

Gabe, got breaker bar, good 6 pt socket and pipe for leverage? Amazon has a pulley grabber that'll hold the balancer still while you yank on the bolt.
In case you forgot, soak the bolt overnight with penetrant, like wd40.

19mm


But.... we're men. We LOOK for excuses to buy new tools
Isn't the amount of tools one has perfectly proportional to how manly you are??...
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But you need that scoop on the hood. Is it true that they're big enough to fit your lunch box and all your camera gear in it?
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Old 01-28-2013, 09:04 PM
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Re: Rattling behind timing belt

Lmao!!
Well my 5'2" 115# mechanic is a helluva a man then!!! He has an orthoscopic movie camera to see what's in the top drawers of his giant toolbox, (that's how he found my knock sensor).. and one of those electric manlifts to get the tools from up there.

He's been buying tools since... well I think Nixon was president.

My tool box has a 'my buddy' logo.
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Quote:
Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead

Last edited by bykfixer; 01-28-2013 at 09:06 PM.
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Old 01-28-2013, 10:21 PM
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Re: Rattling behind timing belt

I love an excuse to buy new tools! While I was attempting to change the cat the other day, naturally, there was ONE nut that was rounded off and welded to the flange. I tried and tried and fought with that thing but to no avail. It was a perfect excuse to go buy a dremel tool and make short work of that nut :D

Mike, oh boy do I know about that pulley bolt. That was a past excuse to buy a new tool. I got "EARTHQUAKE" 3/4" drive for that thing. 6xxlbs of reverse torque should take care of it ;)
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Old 01-28-2013, 10:35 PM
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Re: Rattling behind timing belt

Oh yea the screwdriver trick is a good one! I used it but it didn't reveal any conclusive evidence. :/
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Old 01-29-2013, 02:16 AM
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Re: Rattling behind timing belt

Ive used a drum stick, it worked for me....
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Old 01-29-2013, 07:42 PM
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Re: Rattling behind timing belt

Quote:
Originally Posted by G_FORCE View Post
I love an excuse to buy new tools! While I was attempting to change the cat the other day, naturally, there was ONE nut that was rounded off and welded to the flange. I tried and tried and fought with that thing but to no avail. It was a perfect excuse to go buy a dremel tool and make short work of that nut :D

Mike, oh boy do I know about that pulley bolt. That was a past excuse to buy a new tool. I got "EARTHQUAKE" 3/4" drive for that thing. 6xxlbs of reverse torque should take care of it ;)
Bolts/nuts on the cat are by FARRRRRRRRRRRRRRRR the worst rusted bolts on any car, hands-down.



And be prepared to look for any and all excuses to use that dremel. It literally is the most versatile tool ever.
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Quote:
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But you need that scoop on the hood. Is it true that they're big enough to fit your lunch box and all your camera gear in it?
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Old 02-01-2013, 09:37 PM
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Re: Rattling behind timing belt

Dremels :-).....



I gave my wife a dremel 3000 for Christmas with a 3' extension that you hold like a pencil. She draws on glass etc with it.
But I'm getting the 4000 with a bucket load of dremel tools someday because she won't let me near the 3k.. sigh...
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Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead
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Old 02-02-2013, 05:47 PM
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Re: Rattling behind timing belt

That's a nice gift you got here there, Mike. I agree that you must have the more powerful version. It's just the nature of things :D

After starting my timing belt job tear down I think I found the rattle I was hearing. The top right valve cover stud (closest to the back cam gear) was completely unseated. It was held from bouncing around in the valvetrain by the nut of course but I think that was the rattle. It is in the appropriate place and seems reasonable.

Since I'm halfway into the tear down and I already have the parts, I'm going to go ahead and just finish the job for peace of mind. I picked up a manual tensioner kit too so I'm happy to get rid of that auto tensioner.

I'm debating on whether or not to pull the oil pump off while I'm here. I'm not excited to try and break loose any more exhaust bolts and the car did have good oil pressure, just that stupid oil light is still on. I think I'm being paranoid. I think I'll chaulk it up to a short in the sensor/light because if it truly had low oil pressure all this time, there are going to be bad sounds soon no matter what I do now lol.
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Old 02-04-2013, 08:48 AM
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Re: Rattling behind timing belt

While you are half way there, soak them bolts, take a deep breath and dive on in. Sounds like you've your homework, but like you said better safe than sorry.

I figured out my rattle(s). 500rpm is the cat converter. 6-700 rpm is the hood. Ugh.
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Originally Posted by ogsmakdade View Post
welcome to site Carl
...is a golden car fax kinda like a golden ticket? Sure hope willy wonka didn't put any snozberries in your motor.
Quote:
Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
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Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

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Old 02-04-2013, 12:11 PM
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Re: Rattling behind timing belt

While my initial suspicion about the cause of the noise being the valve cover stud may or not have been fact, I did find that the small timing belt tensioner pulley was on it's why out. Just spinning it by hand I could feel the grittiness of a worn bearing and hear the scraping as well.

In any case, the job is done. The car is all buttoned back together and sounds smoother with no 3k RPM rattle. :D

Mike, I'm glad you diagnosed the rattles. Is it a heat shield or is it the ceramic material inside the cat? As for the hood, what's up with that?
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Old 02-04-2013, 12:36 PM
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Re: Rattling behind timing belt

The heat shield.
Don't know what's up with the hood but it's slightly out of aligment so I gotta move it anyway.
I was putting the car away when it just happened to rattle at a time when I just happened to be looking at the hood near the driver side mount. It rattled, I changed idle speed, it stopped, let idle speed go cack to normal and the hood was visibly vibrating. Maybe a loose screw. We'll see.

Glad you found that tensioner now.
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Originally Posted by elspectro29 View Post
Only seen the first one, 15 years ago in theaters. Plan on keeping it that way. Get off my lawn.
Quote:
Originally Posted by Lindso View Post
I remember my first thread, asking what a noise was when I got going 110mph.
Pretty much got flamed for driving like a jackass and was told to slow down. And I'll be damned, slowing down fixed it.

God's Not Dead
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