need help fast: Roller rockers making noise

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stooges701

New Member

Oct 27, 2005

36

0

0

MO

Feb 6, 2006

#1

• Feb 6, 2006

• #1

I just got my engine running and only have 10 miles on it? The 1.72 svo pedestal roller rockers are a little loud. I cant hear them unless I get my ear near the valve cover, then its pretty loud. Has any body else had this problem. Is this normal for roller rockers or 5.0? I know that thier shimmed right so I dont know what it would be. The roller rockers are sitting on top of a pair Afr 165's with the 600 lift springs and valves. Also Iam only running .512 Lift with the 1.7 roller rockers. Any suggestions???

 

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matm347

Founding Member

Aug 29, 2000

2,056

0

0

Feb 6, 2006

#2

• Feb 6, 2006

• #2

Do you have new lifters as well? Did you prime them? If not, run it a few minutes and they should come around. If you didn't change lifters then you may need to re-adjust the rockers. If they still make noise, a lifter may have failed due to the extra stress.

 

88Stangboy

Banned

Dec 12, 2005

342

0

0

Greenville, SC

Feb 6, 2006

#3

• Feb 6, 2006

• #3

I had a problem with the rockers being noisey after i installed them. I went back through them all and found one was loose and two others were borderline loose. I re-adjusted them all and went with a 1/2 turn instead of a 1/4 and it fixed the problem.


.512 lift....are you running an F cam?

If so, did you have to notch your pistons to clear with those 1.72's? or not?

 

mbsprinks281

Member

Apr 19, 2005

58

2

9

Lockport, IL

Feb 6, 2006

#4

• Feb 6, 2006

• #4

Rocker chatter. Pretty Common. Double check your rockers and make sure their still tight. Also, what kind of valve cover are you using? Are the rockers possibly hitting the covers? Just a thought..........

 

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304billet

Member

Sep 16, 2005

315

0

16

Feb 7, 2006

#5

• Feb 7, 2006

• #5

I have had both pedestal mount 1.7 Crane Gold and Crane Cobra and 7/16" stud mount 1.6 rockers Comp Cam Pro Magnum with polylocs and they all make noise. Sounds like a sewing machine.

ASCE certified mechanic and engine builder put all three sets on. Old 347 stroker had 25,000 miles and the R304 has 18,000 and no problems. take them both to 6000 all day long.

 

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50ceptor

New Member

May 23, 2003

83

0

0

Sumerduck VA

Feb 8, 2006

#6

• Feb 8, 2006

• #6

are you running solid lifters, if so they are quite loud. at least mine are, i run 1.6rr and a non roller cam as well. it is loud by nature.

 

dragnazz5.0

My "0" key d0esn't w0rk, s0 I have t0 use the zer0

Nov 19, 2005

815

5

18

mooresville, nc

Feb 8, 2006

#7

• Feb 8, 2006

• #7

my motor has all sorts of valvetrain noise. actually it does sound like a sewing machine.

 

PR_wingman

New Member

Feb 2, 2006

20

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0

Jupiter, Florida

Feb 8, 2006

#8

• Feb 8, 2006

• #8

mbsprinks281 said:

Rocker chatter. Pretty Common. Double check your rockers and make sure their still tight. Also, what kind of valve cover are you using? Are the rockers possibly hitting the covers? Just a thought..........

Click to expand...

that happened to me the valve covers where not tall enough for the ford racing 1.6 roller rockers i installed Dauuu not funny