S10 2.2 lifter noise?

[BOB URZ]

I had previously posted last year on the problems i had with my
96 2.2 Chevy S10. To recap, the tensioner on the cam chain broke
and allowed the chain to jump time. I took the head off and found
8 bent valves. I had the head into a machine shop, had it cleaned,
decked, and 8 new valves and seals put in it. I had someone else
put the head back on at the time. The truck started and ran OK
after all this.

Now, here's my issue. At About 3000 RPM+ or so i hear what appears to be
lifter noise from the engine. I cannot really detect
it at lower RPM's. And i can raise the throttle in park to this point
and hear the noise also.

So, my question now is what this noise could be? I did not remember
hearing it before all this happened. My thoughts are maybe:
A lifter mount not properly screwed down? Bent push rods maybe?
I know this engine had piston slap issues and i heard them before
this happened. But it really does not seem to be the same noise.
Any thoughts? What would be the result of a bent push rod?


Bob




----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----

[Big Al]

Post by BOB URZ
I had previously posted last year on the problems i had with my
96 2.2 Chevy S10. To recap, the tensioner on the cam chain broke
and allowed the chain to jump time. I took the head off and found
8 bent valves. I had the head into a machine shop, had it cleaned,
decked, and 8 new valves and seals put in it. I had someone else
put the head back on at the time. The truck started and ran OK
after all this.
Now, here's my issue. At About 3000 RPM+ or so i hear what appears to be
lifter noise from the engine. I cannot really detect
it at lower RPM's. And i can raise the throttle in park to this point
and hear the noise also.
So, my question now is what this noise could be? I did not remember
A lifter mount not properly screwed down? Bent push rods maybe?
I know this engine had piston slap issues and i heard them before
this happened. But it really does not seem to be the same noise.
Any thoughts? What would be the result of a bent push rod?
Bob

Next time the tank is low, fill it with premium. It might be spark knock.

Al

[sdlomi2]

Post by BOB URZ
I had previously posted last year on the problems i had with my
96 2.2 Chevy S10. To recap, the tensioner on the cam chain broke
and allowed the chain to jump time. I took the head off and found
8 bent valves. I had the head into a machine shop, had it cleaned,
decked, and 8 new valves and seals put in it. I had someone else
put the head back on at the time. The truck started and ran OK
after all this.
Now, here's my issue. At About 3000 RPM+ or so i hear what appears to be
lifter noise from the engine. I cannot really detect
it at lower RPM's. And i can raise the throttle in park to this point
and hear the noise also.
So, my question now is what this noise could be? I did not remember
A lifter mount not properly screwed down? Bent push rods maybe?
I know this engine had piston slap issues and i heard them before
this happened. But it really does not seem to be the same noise.
Any thoughts? What would be the result of a bent push rod?
Bob
----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----

Get a mech to listen & check for rod-bearing noise. s

[Bob Urz]

Post by sdlomi2

Post by BOB URZ
I had previously posted last year on the problems i had with my
96 2.2 Chevy S10. To recap, the tensioner on the cam chain broke
and allowed the chain to jump time. I took the head off and found
8 bent valves. I had the head into a machine shop, had it cleaned,
decked, and 8 new valves and seals put in it. I had someone else
put the head back on at the time. The truck started and ran OK
after all this.
Now, here's my issue. At About 3000 RPM+ or so i hear what appears to be
lifter noise from the engine. I cannot really detect
it at lower RPM's. And i can raise the throttle in park to this point
and hear the noise also.
So, my question now is what this noise could be? I did not remember
A lifter mount not properly screwed down? Bent push rods maybe?
I know this engine had piston slap issues and i heard them before
this happened. But it really does not seem to be the same noise.
Any thoughts? What would be the result of a bent push rod?
Bob

Get a mech to listen & check for rod-bearing noise. s

Its coming from the top end. I know what pre detonation noise is
and its not that. And its peaky like a resonance only above a certain
RPM. It almost sounds like something loose sympathetically vibrating,
but i a fairly sure its somehow valve train related. Ir does not have
that lower sound of lower end rod/bearing noise.

Back to the original questions:
If the push rods were slightly bent, what kinds of symptoms or noise
If the rocker arm nuts were slightly loose?

Bob


----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----

[sdlomi2]

Post by Bob Urz

Post by sdlomi2

Post by BOB URZ
I had previously posted last year on the problems i had with my
96 2.2 Chevy S10. To recap, the tensioner on the cam chain broke
and allowed the chain to jump time. I took the head off and found
8 bent valves. I had the head into a machine shop, had it cleaned,
decked, and 8 new valves and seals put in it. I had someone else
put the head back on at the time. The truck started and ran OK
after all this.
Now, here's my issue. At About 3000 RPM+ or so i hear what appears to be
lifter noise from the engine. I cannot really detect
it at lower RPM's. And i can raise the throttle in park to this point
and hear the noise also.
So, my question now is what this noise could be? I did not remember
A lifter mount not properly screwed down? Bent push rods maybe?
I know this engine had piston slap issues and i heard them before
this happened. But it really does not seem to be the same noise.
Any thoughts? What would be the result of a bent push rod?
Bob

Get a mech to listen & check for rod-bearing noise. s

Its coming from the top end. I know what pre detonation noise is
and its not that. And its peaky like a resonance only above a certain
RPM. It almost sounds like something loose sympathetically vibrating,
but i a fairly sure its somehow valve train related. Ir does not have
that lower sound of lower end rod/bearing noise.
If the push rods were slightly bent, what kinds of symptoms or noise
If the rocker arm nuts were slightly loose?

I think if any of these conditions exist, there would be valve lifter
noise, and it seems as if it would be loudest when oil pressure was
lowest--at idle? Don't believe it'd be loudest at 3k rpm, as oil pressure
should be relatively high there. s

[tonysimpkins1]

replying to BOB URZ, tonysimpkins1 wrote:
Got a pecking noise on my 1999 2.2 s10. I took each plug wire off 1at atone on
the four plug off the noise stops what could it be

[Kevin Bottorff]

Post by tonysimpkins1
Got a pecking noise on my 1999 2.2 s10. I took each plug wire off 1at
atone on the four plug off the noise stops what could it be

what you wrote makes no sence. clarify and we can try to help. KB