Thank You...

here is a pic of a swift/geo head..


[IMG]local://upfiles/40785/3B229E97D9C047B5888F96370FA6E1E5.jpg[/IMG]

 

A single cam can still uses the same styles

I hand an old Dodge Omni (ugh) that was single OHC (bucket style)

and a 2.2L charger with the rocker/lash adjuster style.

 

That's the dual overhead cam head that wasn't available until '98 I beleive, maybe '97.

 

This is why I like pushrod v-8s...

That picture of the mud car was hilarious though... I needed that.

 

That "cam on a bucket" thing is the only type that Ihave seen. On the other type, are the rockers attached to the adjusters? Is there lash between the rocker and the tip of the valve? Lash to me means space between the top on the valve stem (or lash cap) and the bottom of the rocker arm. If the swift in question has a set up with lash and has got a mechanical part that's supposed to adjust the lash, thenthat could be the source of the noice.

I have only owned two 4 bangers way way back when, and I never worked on them. I have owned and worked onseveral v8's gasserswith flat tappet cam shafts and two deisel boats where I had to set the valve lash seasonly. Too much lash will make a racket for sure.

 

Makes sense, but in my case, why would it go away as soon as you shut it off and start it again. If it were lash, it would continue to do it each time you start it, not just the first startup. This morning, I just touched the key, and let it basically just crank over once. Then started it, and there was no click.

 

I want to hear more about them 4.56s!

 

Mite be the timming chain has some slack in it , or if its a stick shift could be a throw out bearing ? .

 

It looks like either set up uses a springfor the pump action. The "bucket" isjust an upside down lifter with the oilinghole reversed, and, though I've no idea how the lash adjuster works,you can clearly see the spring in the cutaway that Rabbler posted. When varnish builds up in a lifter, it makes it harder for the spring to overcome the friction of the pushrod seat. The pumping action ceases and the seat slams into the bottom of the lifter and makes a clicking noise. If the lash adjusters use the same pumping tech., I would imagine that, once seized, you would have too much lash and the increased rocker travel would make the same noise as the seat hitting the bottom of a lifter.

Either way..... I'll bet time (running time) and a couple of oil changes will make it go away. I've got a 1999 Ram van with a ****load of miles on it. If it sits for more than a week, it has what sounds like rod knock for the first thirty minutes. It then goes away, and, if you start it whithin the next few days the noise is not there. Let it sit for a week.... it comes back.

 

It has a timing belt, and a brand new tensioner, so it has no slack in it.
The noise is definetly under the valve cover