How to stop valve chatter?

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uneverkno

New Member

Aug 18, 2005

65

0

0

Jul 6, 2006

#1

• Jul 6, 2006

• #1

I thought i could tackle this one myself but i came up short. when i first got the car on the road the valves would chatter real bad when you got on the car. i bought some lucas fuel system treatment, and it helped out alot. The car pulls hard in 1st and 2nd but as soon as i go to third the valves start to chatter again. What can i do to fix this? When i got the car, the previous owner replaced the motor with a 91 5.0, so i dont know how long it had been sitting. Thanks in advance for any and all info.

 

smittyb

Member

Oct 16, 2005

134

1

19

Marysville,wa

Jul 6, 2006

#2

• Jul 6, 2006

• #2

Adjust the rocker arms?

 

U

uneverkno

New Member

Aug 18, 2005

65

0

0

Jul 6, 2006

#3

• Jul 6, 2006

• #3

i was hoping for that to be the last option. if i have to do that ill just buy some better heads. Been waiting on a reason to do a h/c/i swap.

 

Roland69

Sergeant Tangnet

Sep 17, 2005

2,867

2

58

Port Elgin, Ontario

Jul 6, 2006

#4

• Jul 6, 2006

• #4

probly take you 2 hours max

 

bluevenom867

I will have images of molesting stuffed animals in

Dec 15, 2003

1,704

1

0

St.Petersburg,FL

Jul 6, 2006

#5

• Jul 6, 2006

• #5

uneverkno said:

i was hoping for that to be the last option. if i have to do that ill just buy some better heads. Been waiting on a reason to do a h/c/i swap.

Click to expand...

Oh,well thats nothing compared to what I was gonna say with you need the guides bushed,new seals,new springs and a valve job for it to be really right....

 

TheBocSez

New Member

Feb 3, 2004

652

0

0

Converse, TX

Jul 6, 2006

#6

• Jul 6, 2006

• #6

uneverkno said:

I thought i could tackle this one myself but i came up short. when i first got the car on the road the valves would chatter real bad when you got on the car. i bought some lucas fuel system treatment, and it helped out alot. The car pulls hard in 1st and 2nd but as soon as i go to third the valves start to chatter again. What can i do to fix this? When i got the car, the previous owner replaced the motor with a 91 5.0, so i dont know how long it had been sitting. Thanks in advance for any and all info.

Click to expand...

Are you sure its mis adjusted valves? If you put a fuel system treatment in and it helped, could it be detonation? Maybe your timing is too far advanced, the gas is bad or had a little water in it. Dunno, just thinking out loud.

 

U

uneverkno

New Member

Aug 18, 2005

65

0

0

Jul 6, 2006

#7

• Jul 6, 2006

• #7

It was the lucas fuel treatment, my mistake. Im going sometime to day and get the timing checked.

 

LEE93COBRA

New Member

Apr 12, 2000

1,929

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Alabama

Jul 6, 2006

#8

• Jul 6, 2006

• #8

What is base timing set at? How many miles are on the timing chain?

 

U

uneverkno

New Member

Aug 18, 2005

65

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0

Jul 7, 2006

#9

• Jul 7, 2006

• #9

LEE93COBRA said:

What is base timing set at? How many miles are on the timing chain?

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I couldnt make it to my dads yesterday so i dont know the timing. As far as the timing chain, i was told the motor came out of a 91 mustang with 80k on the odometer

 

LEE93COBRA

New Member

Apr 12, 2000

1,929

0

0

Alabama

Jul 7, 2006

#10

• Jul 7, 2006

• #10

If the timing chain has not ever been replaced than that is your culprit. You can get by with backing your timing down until it quits pinging but it will cost you potiential power output. But if you let it continue to 'ping' it will cause damage

 

SoldMySS4a5.0

Member

Feb 12, 2002

126

1

19

South Carolina

Jul 7, 2006

#11

• Jul 7, 2006

• #11

retard the timing--put in octane boost, or both.