So I was driving my 55 today since it's my daily i come to a stop and I hear this crazy scratch noise. it stops as I start moving again so I shrugged it off. as the day progresses and I run a few errands it slowly gets louder and more constant. Car isn't heating up more than normal is idling fine runnin like normal so i'm lost. I call my buddy who's an old school rodder and have him take a listen. He tells me to remove the belt between the crank and the fan and see if it still does it cause the noise is coming form around the water pump. I remove the belt and the noise is still there. We come to the conclusion that it has to be something in the timing chain area. Now this motor has maybe 7000 miles on it. If there are any other possibilities i'm not thinkin of can someone maybe make some suggestions. I mean if it's bolt backing out under the timing chain cover that's fine i'll replace it but i don't want to spend money needlessly.
This could be several things, we need some more info....Could be your cam walking forward and s****ing on the timing cover, could be your brake drums....like a adjuster fell out, spring broke, or throwout bearing.... Does it only do it while the motors running? Does it only do it while the cars in motion, moving down the road? Can you clutch it, does the noise change? If its in the timing cover....you need to pull it off and check it out BEFORE it costs you alot of money to repair! A thrust plate bolt backing out can break your gears and chain set and bend the piss outta your valves or WORSE!
Are you sure it isn't a wheel bearing????? If you lightly rev the motor, the s****ing sound should increase with motor rpm. Try clutching it, it that makes it go away, your throwout bearing is probably the cause. Take your alternator belt off....could be your bearings there. Or your power steering pump going out. We need more info!!!!!
definitely not a wheel. happens with the car standing still at idle in my driveway it's not an exhaust leak as I originally thought. It's definitely coming from around the waterpump/timing chain area. my plan at this point is to pull the timing chain cover tomorrow after work and see what's up. if have to I will put a double roller in this weekend which won't upset me too bad and I guess it's an excuse to put my comp 280h in but really I don't wanna replace it and find out I'm fixing the wrong thing. chasing gremlins is a pain in my *** lately.
before ripping it apart to look, can you borrow a stethascope? or be real careful and use a super long screwdriver to hold against the timing cover to listen with the handle with your ear.
If it's coming from the front check the water pump before you pull the front cover maybe it's just a bad bearing in the pump
no power steering still strong arm. disconnected the belt from the water pump and the noise is still there. I uploaded a video to youtube and i'm waiting on it to finish now so I can post a link. since it's cold it's not a constant noise but as soon as It warms up its pretty steady.
here we go this is with is cold you can hear the loud tick when i rev it. I tried the screwdriver at the valve covers to make sure it wasn't a valve tick and it was silent. I am gonna warm it up and record again. I don't wanna push it ot much till I know what it is. <object width="640" height="385"><param name="movie" value="http://www.youtube.com/v/gUmr64llvEo?fs=1&hl=en_US"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/gUmr64llvEo?fs=1&hl=en_US" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></embed></object>
Gee it would be nice if we knew what ENGINE !! If you are running a mechanical fuel pump they have be known to make noise. V-8s mostly have FP on or near the front cover.
So sorry in all the frustration I forgot to mention it all. Chevy 350 mechanical pump 30 over hei non power steering stock cam
Video sounds like a tinny s****ing noise? Put the screwdriver on the cover. I had a sbc stock never apart. When I did pull it apart for a rebuild, it had one cam bolt backed out and s****ing a groove in the cover, but i never heard it while driving it.
warmed up its MUCH louder and more constant. I'm gonna borrow a steth tomorrow hopefully it wont be too bad.
Make sure it's not a loose starter rubbing the flywheel. I know it's at the back but they have fooled experts before.
you know it's close enough to where the noise is that that very well could be it too. I will check that as well.
I forgot to mention, with the water pump pulley disconnected the noise isn't quite as loud but is most definitely coming form below the pump and once the car is warm the noise is constant without giving it throttle. whole cold i have to give it throttle to hear it.
You can use a wooden dowel as a "stethescope". Just hold it on the suspect noise area, put the other end to your ear and listen. Just make sure to keep the dowel out of the belts, etc. Bob
Slide under and check or remove the torque converter cover. They bend and rub the ring gear, make an awful tinny racket that can travel through the crankshaft and sound like it's coming from up front. If you remove the cover and that's not it, check the ring gear for cracks and backed-out bolts.
Yes, the torgue converter bolts will some times back out. Had that happen to a frinds 68 Camaro and like said above make sure the flex plate isn't cracked.
Get in there with a mirror and flashlight and you should see something right away. The inspection pan may have shavings in it, look at that first when you drop it down. Bob
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