Mattdog2020sc

So broke my belt the other day at work so after couple days waiting on parts I replaced it fml.... Anyway now I have a superloud raddle on the side of motor sounds like timing chain..... Does anyone stock the balance and timing chain kit? I see crate engine depot has the separate kits is that it?.... And anyone in the Missouri area wanna make some cash fixing mine Lol.... Gm wants 950 give or take with parts...

Slowbalt2000

iTrader: (1)

Post a video of the sound. If the belt broke you may have a bad bearing in one of the pullies.

Mattdog2020sc

Ok with Photobucket?

jdbaugh1

iTrader: (1)

Youtube works pretty good. Do you have a google or gmail account?

Also as Slowbalt said it could be a pulley bearing. I have had a pulley bearing go out and when it started making noise I really though it was the timing chain too. I even popped off my valve cover to make sure the tensioner was working correctly. Eventually the grinding noise stopped and this was the end result.

Mattdog2020sc

Yea I have google and YouTube so ill put vid up n attach link. At first that's what I was thinking was my tensioner or idler on way out so I replaced the tensioner pulley just in case. .

Mattdog2020sc

https://youtu.be/rGjIfsUMERc
lmk what you guys think.

jdbaugh1

iTrader: (1)

Could be your idler pulley just like mine. I ended up having a modify the idler pulley assembly so that I could replace the exploded pulley with a standard pulley for the tensioner. I dug and dug an dug for information on a replacement idler pulley but could not find one anywhere. If it is your pulley like it was on mine it should be exploding any time now. Does the sound sort of change at startup and then after it runs a while?

Mattdog2020sc

Not really its pretty consistent

Henry3959

If you don't have an automotive stethoscope, remove the belt and spin each item, including the alternator.

Mattdog2020sc

Ok I will I have off next 2 days ill pull belt and spin eveything.
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Henry3959

I wouldn't run it anymore....

Mattdog2020sc

So.... Im pretty sure its the pulley. Took better look qtoday and Im pretty sure the bearing is on its way out. Not the front tensioner but the one above the crank anyone have a part number?

jdbaugh1

iTrader: (1)

The one above the crank is the idler pulley. Like I said earlier this pulley is very difficult to find by itself. When I went through this everyone thought the idler pulley and tensioner pulley were the same. I still never found the part number. Worst case you can machine your idler bracket to accept the same pulley as on the tensioner assembly.

Edit: Here is the thread I created when my pulley went out

Slowbalt2000

iTrader: (1)

Im glad i saved you the trouble of replacing timing parts.

Mattdog2020sc

So replaced the belt and pulley fixed some noise pulled belt back off accessories and it's my harmonic balancer chattering and wobbling slightly. Car has been sitting for a while and just got time today. So I ordered it from O'Reillys. Any advice 3 jaw or???

Mattdog2020sc

Anyone else have a harmonic balancer wobble?

user 72239

iTrader: (4)

mine was making a horrible noise.

its just a bolt that holds it on. I believe its a 22mm. its torque to yield, so get a new one.

Mattdog2020sc

Bought the balancer today fixing tomorrow.... I'm just worried I had a similar issue in one of my Taurus SHO' and it was crank cancer. .... had to weld new material around keyway and replace key and crank pulley. .... thanks...