Noisy Tappets

Neil - UK

Enthusiast
Joined
Oct 3, 2000
Posts
3,639
Reaction score
0
Location
ENGLAND
Car came with this top end noise what we call rattley tappets, think you call them rocker arm valves, I've been told they are not adjustable but the noise at tick over is annoying and I want to loose this sound. It's still there when the car accelerates but is not as noticeable, engine and exhaust drowns it out. Is this normal for a creampuff ? or is there a cure, maybe a re-torque.
 

Joseph Houss

Former VCA National President
VCA Officer
Joined
Jul 19, 2000
Posts
3,330
Reaction score
1
Location
NJ USA
Are you sure you're not hearing the fuel injectors?
 
OP
OP
N

Neil - UK

Enthusiast
Joined
Oct 3, 2000
Posts
3,639
Reaction score
0
Location
ENGLAND
don't think so, I've been a few other gen2's and never came across this sound and never had anything like it with the RT/10, its a bit like fast ticking
 
OP
OP
N

Neil - UK

Enthusiast
Joined
Oct 3, 2000
Posts
3,639
Reaction score
0
Location
ENGLAND
the noise is there all the time even after a 2 hour run, regardless of oil pressure
 

Wild Bill

Enthusiast
Joined
Dec 23, 2002
Posts
664
Reaction score
0
Location
Little Rock AR
I had a similar sound on another Chrysler vehicle-I had the hydraulic lash adjusters (HLA) replaced (at least I think thats what they were called). It was a very low mileage car and the tech said that the probable cause was the low mileage-the adjusters were fed from the oil pressure and not bringing the oil pressure up for long periods could have caused them to fail.

Sounded reasonable to me.

Bill
 

MadMaxx

Enthusiast
Joined
May 4, 2001
Posts
2,416
Reaction score
0
Location
Simpsonville, SC
How close are you to your next oil change? The reason I ask is....

Go to NAPA (or what ever the equivilant parts store there is). Your looking for a product called "Sea Foam". It's what they use to clean large marine engines with. Get 2 bottles of the stuff.

Un-cap a vac port on the intake manifold and use a tube (medical grade or vac line work well) and, with the engine running, start to dip down the tube into the can of seafoam. This will want to kill the motor, as you will notice the idle will drop. Have someone in the car to keep it going, but don't rev. Just use your hands to vary the flow of the liquid into the engine. When you've gotten about 1/2 way through the can, stick the entire tube into it, which should shut off the motor. With a funnel, slowly poor the rest of the solution down into the intake manifold.

Now for part 2.....

Remove the oil cap from the valve cover, and dump the remaining can of sea foam into the valve cover.

Le the entire car sit for about 10-15 minutes. Get in the car and crank it up... your going to billow TONS of while smoke... I mean TONS :) It's all that carbon and nastyness going bye bye.

Now, with this cleaner in your oil, it's going to degrease your engine (lightly) from the inside out. You only want to run it in there for about a day maximum, of non-hard driving. After a few hours of normal use, drain the oil completely (have it "sucked" out at shop is the best way) and do a fresh fillup w/ filter.

I'm willing to bet your tappet problem will be gone :) You got a nice clean engine from top to bottom. If you need to clean out the throttle bodies and the front of the manifold missed by the seafoam, get a can of "deep creep" and spray it in there while the engine is running. Note: KEEP YOUR THUMB ON THE STRAW EXTENSION! If not, it could get sucked right off and that would not be good!

If you haven't already, while your doing all these fluids, drain your trans oil and refill with MT-90 from redline synthetic. You can do the differential oil as well.. but I warn you, it STINKS.

MM
 

MadMaxx

Enthusiast
Joined
May 4, 2001
Posts
2,416
Reaction score
0
Location
Simpsonville, SC
With a low milage car, it is possible for there to be damage due to lack of lubrication durring break-in...but try my method before pulling the valve-train to pieces. Can't hurt.. cost is very low.

MM
 
OP
OP
N

Neil - UK

Enthusiast
Joined
Oct 3, 2000
Posts
3,639
Reaction score
0
Location
ENGLAND
brought the car last July with 5k miles on the clock and have added another 600 since, it came with a service from the Chrysler dealership. If a squirt with a can and a oil/filter change will sort the problem I'd be happy. The noise hasn't got any better or any worse over the 600 miles
 

VIPORXXX

Enthusiast
Joined
Apr 26, 2001
Posts
244
Reaction score
0
Location
langhorne, PA USA
Hello Neil,

I had noisey tappits and was told that it is sometimes common to
hear the tapping noise. Even told my mechanic it was nothing when he heard it. When I changed my spark plugs I found the #9 plug, the one next to the fire wall on the drivers side was fouled. To make along story short I brought the car to the dealer and after checking it out they said I was leaking oil
through the valve sleeves. They repaired it under warranty and the tapping
was gone. Hope this helps
 

Latest posts

Forum statistics

Threads
153,644
Posts
1,685,209
Members
18,220
Latest member
ROIII
Top