4by4yoter

Hey guys im searching rockauto for a timing kit. My 22r is at 225k and has a slight rattling at certain rpms coming from the top end. Im going to do the chain, head gasket, cam, and rockers. My question is has anyone used the ITM or DNJ timing chain kit and how do you like it? Thanks

wyoming9

iTrader: (1)

The only engine parts I ever used in a 22 R series came from Engine Builder if I lived closer I would just have them do my engine work and be done.

4by4yoter

Upon further inspection the noise is definitely not coming from the timing chain. Its coming the far side of the head, near the cab, its a rattlng/tapping noise that only occurs between certain rpms I would say between 2k-3500 rpms. I don't believe it to be a valve issue im not smoking or using any fluids. Could it just be worn rockers and cam? It almost sounds like the rocker arm is tapping the valve cover but Ive messed with with VC tightness to no avail. I know if I replace the rockers and cam I will have to do a HG (so fun). What do you think?

4by4yoter

the sounds seems to become more pronounced once the engine has reached operating temperature. Im thinking about just getting a new head and being done with it.

superex87

It's probly a worn rocker shaft. That's the shaft the rocker arm rides on. These are known to wear especially if you have weak oil pressure. Take off the valve cover and slide the rocker arm to the side and see how worn the shafts are.

4by4yoter

Do you think I could get away with changing the rockers without changing the head gasket

wyoming9

iTrader: (1)

Only if your luck is much better then mine.

Once the head bolts are out who knows if the gasket will still seal after torquing the head again.

Thing is it might be fine for a few days then let go at the worst time.

an1176

I think I would first check my valves just in case. Pretty easy and it can't hurt. Good luck

4by4yoter

I've already adjusted the valves. Its made this noise since i bought it and ive put over 5k miles on it doesnt smoke or use any fluids ill be taking a look at the rocker shaft today

4by4yoter

Also after adjusting the valves I know how an afterfire from the exhaust and it only happens at random upon deceleration

an1176

If you're having backfire at deceleration there is a little deal (can't remember what's it called) that's supposed to not fully let the accelerator close as soon as you let off to keep from backfiring. It'll allow it to slowly close. There are specs on how to set it. I'll look for it and get back with you. That may be your problem.

4by4yoter

Now have* and alright thanks i believe it may be the accelerator pump? Idk. Im not sure if it's correlated to adjusting my valves because thats when it started doing it

an1176

Dashpod. http://www.4crawler.com/4x4/CheapTricks/TPS/index.shtml#Dashpot

an1176

But I don't that'll cause your rattling. Is it rattling at deceleration?

4by4yoter

Im carbureted so i dont have that dashpot. The rattling happens around 3k you cant hear it at idle

an1176

Forgot it's carborated.... When was the last time it had a carb kit? That might cause the backfire I doubt the rattling.