Trustyrusty

Can anyone tell me what the timing chain slap sounds like? My valves are adjusted properly, but it seems as if I'm still getting some valve noise, not really a sharp tick, but kinda a "slap", not really though, it seems pretty normal, but the valves are loud on startup for 2-3 seconds, and it ticks like this under heavy acceleration at about 2-3K RPM seems to go away after engine warms up a bit, or maybe its just me, what I'm asking is how loud is the timing chain slap? I just did a headgasket..

Plumbrbob

if the chain is slapping you should be able to see the wear on the inside of the timing chain cover.

iamsuperbleeder

I mistaked mine for valve noise

I'll see if I can get a vid of mine, but I don't know how well the noise cn be heard with the camera

[YOUTUBE]http://www.youtube.com/watch?v=mOU54oQBGQM[/YOUTUBE]

DeathCougar

iTrader: (23)

Slap yourself in the face. Over and over.

Thats about what it sounds like.

Take off the valve cover, and you will see the drivers side timing guide broken or missing. Its pretty obvious when the guides are bad.

Trustyrusty

Like its not very loud though, and it doesnt do it any other time but around those RPM's, and when I did the headgasket the guides were still there, I'm about to install a 5.29 front differential so I'm going to replace the oil pan gasket while I'm under there, I figured I mise well and I'll see if theres anything in the pan.

DeathCougar

iTrader: (23)

Thats a good idea. And a perfect time to reseal the pan. Clean it good, and use a quality FIPG (factory works the best)

874runnersr5

Yeah x2 on FIPG.

Make sure you clean out the chunks of plastic from your pan!

sotb3

hey--don't want to worry or send you down the wrong path, but--
did you consider wrist pin knock? or lower?--
just a thought as that is not uncommon for the v6 with a bit of wear and tear--
have you changed oil recently and changed brand or additive?
good luck--

Trustyrusty

Changed oil about two weeks ago, running 10-W40 Napa Brand High Milage oil and a Motorcraft oversize filter.. Works great.. Never had this problem before, not wrist pin slap, its definatly top end.

Plumbrbob

hey man my motor was making a ticking sound and i sweared it was coming from the top end #3 or #4 I ignored it for a while then it got louder I still swore up and down it was lash ou tof adjustment. Then it got so loud LOL I had to change my mind to rod knock cause the motor was toast.

but really if your lash is good no timing chain guide material verified no wear on the timing chain cover, whats left but bottom end?

Trustyrusty

thanks, I may pull my valve cover tonite...

Slowstrike

Im pretty sure hes reffering to his 22re as v6s have belts not chains.

abecedarian

When the chain guides on my 91 went, it sounded like a fairly fast (faster than a loose valve at idle) repetitive metallic rapping or clicking (almost like the old playing card in the bicycle spokes sound) that lasted a second or so every now and then- came and went during constant rpm's and if we blipped the throttle, it rattled while the rpm's came back down to idle.

Flash319

That tick you hear at startup is the timing chain. Oil pressure is what gives it tension so it takes a second. If you are hearing that sound at different RPMs then your tensioner is fried. It sounds like a valve tick but it is not. Pushrod valve tick is what is sounds like not OHV valve tick which can be mistaken for injector noise. OHV do not make a loud tick even when they are way out of adjustment.

abecedarian

loosen any one of the intake valves on a 22re to 0.015" and tell me what it sounds like.

874runnersr5

some people refer to it when the front of your engine sounds like a can of spoons.... hha

Flash319

It doesn't sound like a timing chain tick. I guess I am not explaining right.
A push rod rocker tick sounds like a timing chain tick on a 22re. Kind of echos through the whole engine. But a rocker tick on a 22re sounds more like a loud injector tick since it is rhythmic and the sounds is easy to pinpoint.
Maybe this is just my perception.

abecedarian

a pushrod 'tick' and a loose valve on a 22re sound quite similar- I've got a 72 firebird to compare with (yes it's hydraulic followers, but still has pushrods and if they're not adjusted down properly it's a very distinct 'tap, tap, tap, tap' in time with engine rpm).
The difference between the timing chain and a valve tick, which is similar to a small exhaust leak at one port as well, is the 'frequency' of the tick. valves, pushrods even, make one usually well-defined 'tick' every other engine revolution, since they are both manifestations of the same thing- slack in the valve train (though some pushrods can make more odd noises when they become coked up and oil no longer can travel through it).

What I was trying to get at in my description of the timing chain noise could be considered a 'fluttering' or 'rattling' type of noise, higher-pitched, metal-on-metal contact, but not as sharply defined as a loose valve, nor as rhythmic- more tapslaptapslaptapslap, than tap, tap, tap, tap, tap (correlating to engine rpms).
Get my meaning?

86carbPU

I didn't read all the posts but have you checked to see if the chain is rubbing agains the guide mounting bolts? Usually the timing will rub against the timing chain cover when the guide breaks or wears too much. I switched the timing chain set with metal guides on mine & for some reason the chain slaps against the guide mounting bolts now. Go figure.

DupermanDave

Could it be gas escaping via the PCV valve? I notice that when you shake the PCV, the valve makes a metallic ticking noise.