need help, rockers will not tighten

B

Billy8380

New Member

Jan 1, 2008

68

0

0

Mar 30, 2008

#1

• Mar 30, 2008

• #1

just put on a new set on comp cam 986 srings and now my roller rockers chatter like crazy and when I pulled the valve cover back off and open valves are loose?? Need longer push rods?

 

SQUEEZE&STROKE

New Member

Jun 24, 2005

0

0

0

SOUTHERN CA

Mar 30, 2008

#2

• Mar 30, 2008

• #2

Billy8380 said:

Need longer push rods?

Click to expand...

Possibly.

Are the rockers you have now clearanced for the bigger springs? How did it feel when it went together?

 

95Vert

New Member

Aug 19, 2004

1,785

0

0

North Mexico (deep south Texas)

Mar 30, 2008

#3

• Mar 30, 2008

• #3

More detail please. What do you mean your valves are loose? Regarding pushrod length, did you swap out cams, if so you will need new pushrods, but the best way is to check.

 

B

Billy8380

New Member

Jan 1, 2008

68

0

0

Mar 30, 2008

#4

• Mar 30, 2008

• #4

I am running an tfs1 cam on stock pushrods, ran fine before I got the new springs in. Sorry if misleading valves aren't loose the rockers are loose on the valves that are open

 

B

Billy8380

New Member

Jan 1, 2008

68

0

0

Mar 30, 2008

#5

• Mar 30, 2008

• #5

SQUEEZE&STROKE said:

Possibly.

Are the rockers you have now clearanced for the bigger springs? How did it feel when it went together?

Click to expand...

I am running crane cam 1.6 roller rockers

 

B

Billy8380

New Member

Jan 1, 2008

68

0

0

Mar 30, 2008

#6

• Mar 30, 2008

• #6

update on issue

bent all 16 pushrods

 

BlownFiveLiter

have car, will race....wait, it doesn't run

15 Year Member

Nov 29, 1999

3,133

18

108

Chicagoland

Mar 30, 2008

#7

• Mar 30, 2008

• #7

I merged your new thread with this one.

 

BlackVert

15 Year Member

Oct 3, 2003

5,589

9

98

Bethesda, MD

Mar 30, 2008

#8

• Mar 30, 2008

• #8

Billy8380 said:

bent all 16 pushrods

Click to expand...

gee ... that doesn't sound good ... any idea how that happened?

 

B

Billy8380

New Member

Jan 1, 2008

68

0

0

Mar 30, 2008

#9

• Mar 30, 2008

• #9

BlackVert said:

gee ... that doesn't sound good ... any idea how that happened?

Click to expand...

coil bind, is my only guess

 

B

Billy8380

New Member

Jan 1, 2008

68

0

0

Mar 30, 2008

#10

• Mar 30, 2008

• #10

should I possibly look at new retainers made for double springs? 7 or 10 degree?

 

BK_CAULEY

it's built for speed not longevity, woman

Dec 26, 2006

0

10

49

Thomasville, ga

Mar 30, 2008

#11

• Mar 30, 2008

• #11

here is a thread where i had similar trouble

http://forums.stangnet.com/showthread.php?t=728761

 

B

Billy8380

New Member

Jan 1, 2008

68

0

0

Mar 31, 2008

#12

• Mar 31, 2008

• #12

anyone with any ideas?

 

B

Billy8380

New Member

Jan 1, 2008

68

0

0

Mar 31, 2008

#13

• Mar 31, 2008

• #13

spring specs if it helps. just grabbing for straws

Dual Valve Springs
Outer inside diameter: 1.070"
Inner inside diameter: .697"
Seat load: 132lbs @1.750''
Open load: 293lbs @1.250''
Coil bind: 1.150''
Rate: 322lbs/in

 

BlackVert

15 Year Member

Oct 3, 2003

5,589

9

98

Bethesda, MD

Mar 31, 2008

#14

• Mar 31, 2008

• #14

what is the cam lift and rocker ratio?

is it the TFS1 and 1.6 RRs in your sig?

 

B

Billy8380

New Member

Jan 1, 2008

68

0

0

Mar 31, 2008

#15

• Mar 31, 2008

• #15

BlackVert said:

what is the cam lift and rocker ratio?

is it the TFS1 and 1.6 RRs in your sig?

Click to expand...

Yeah tfs1 and crane energizer 1.6 pedestal mount RR's

would it make a difference that I am running stock retainers and locks

 

B

Billy8380

New Member

Jan 1, 2008

68

0

0

Apr 1, 2008

#16

• Apr 1, 2008

• #16

found out coil bind was the problem, heads need to be machined for the springs. Comp cams told me first round they were ok and then the 2nd technician said they wouldn't work