5.3 tick..... louder than normal ticking..... another problem
Oct 10, 2007 | 07:27 AM
#11
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Joined: Oct 2003
Posts: 5,151
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From: From Houma La. Living n Ellisville Miss.
Hey guys....
Got another problem to share with yall...
Ok the ole 5.3 has always had the tick on start up and when warmed up..
Nothing major, now its really Ticking at anything above 1500 rpms.. with no load or load..
It pulls timing like crazy sometimes... but in boost its a hit and a miss...
This just started.. ive tried changing the VE Tables and timing... nothing helped.. ITs runnin rich also....
I ran it in Closed Loop and got the fuel straighted out in Vaccum but lean in boost.. but the Tick/Knock is still there
I pulled the Passenger Side Valve cover since the noise was coming from what it sounded like good ole Number 7..
Goin to do a leak down test on all the cyls and compression test....
165k miles and it looked new under there.. everything was tight.. Springs and rockers.
Goin to put the torque wrench on everything when i get home..
Might pull the pan and see if i have any suprises in there..
Does anybody have any ideas?
Suggests?
Advice?
I was thinkin about a LQ4 and ARP bolt it and start over...
Got another problem to share with yall...
Ok the ole 5.3 has always had the tick on start up and when warmed up..
Nothing major, now its really Ticking at anything above 1500 rpms.. with no load or load..
It pulls timing like crazy sometimes... but in boost its a hit and a miss...
This just started.. ive tried changing the VE Tables and timing... nothing helped.. ITs runnin rich also....
I ran it in Closed Loop and got the fuel straighted out in Vaccum but lean in boost.. but the Tick/Knock is still there
I pulled the Passenger Side Valve cover since the noise was coming from what it sounded like good ole Number 7..
Goin to do a leak down test on all the cyls and compression test....
165k miles and it looked new under there.. everything was tight.. Springs and rockers.
Goin to put the torque wrench on everything when i get home..
Might pull the pan and see if i have any suprises in there..
Does anybody have any ideas?
Suggests?
Advice?
I was thinkin about a LQ4 and ARP bolt it and start over...
yea i hate to tell you but pass, side in not where #7.hahahaha
i got my 370 just wanting for some boost.
Oct 11, 2007 | 08:46 PM
#15
Thread Starter
TECH Senior Member
iTrader: (10)
Joined: Oct 2004
Posts: 14,068
Likes: 2
From: Crystal Springs, MS
Got the fuel back right...
But that dang ticking noise is horrible...
Anything above 1500 rpms and its there...
Below 1500 and i cant hear it...
It changes with RPM.. not load...
In P or N i can slowly rev it up and she starts singing at 1500+
With the converter locked in 3rd and doin bout 28mph i can get on it and it seem like right at 1500 it starts the noise...
What yall think?
Should have the Compression tester tomorrow...
Goin to do all 8
Whats considered Good Compression??
But that dang ticking noise is horrible...
Anything above 1500 rpms and its there...
Below 1500 and i cant hear it...
It changes with RPM.. not load...
In P or N i can slowly rev it up and she starts singing at 1500+
With the converter locked in 3rd and doin bout 28mph i can get on it and it seem like right at 1500 it starts the noise...
What yall think?
Should have the Compression tester tomorrow...
Goin to do all 8
Whats considered Good Compression??
Oct 11, 2007 | 08:49 PM
#16
Thread Starter
TECH Senior Member
iTrader: (10)
Joined: Oct 2004
Posts: 14,068
Likes: 2
From: Crystal Springs, MS
Just found the trusty ole book...
It says for V-8s Minimum Cylinder Compression Pressure 100PSI
Maximum variation between Cylinders 25% from the highest reading...
It says for V-8s Minimum Cylinder Compression Pressure 100PSI
Maximum variation between Cylinders 25% from the highest reading...
Oct 12, 2007 | 08:31 AM
#18
Thread Starter
TECH Senior Member
iTrader: (10)
Joined: Oct 2004
Posts: 14,068
Likes: 2
From: Crystal Springs, MS
Would the valves float at 1500rpms??
I took the DS VC off and tried to move the springs and rockers....... everything was tight..
Ill pull the Passenger side VC when i get off work and see whats under there..
I took the DS VC off and tried to move the springs and rockers....... everything was tight..
Ill pull the Passenger side VC when i get off work and see whats under there..
Oct 12, 2007 | 09:26 AM
#20
try getting a new oil pump with the red o-ring and see what happens then, but it does sound like a lifter. Pull the VC and run the engine, see which rocker isn't spitting. . . . lay some towels out first.
