Trouble with valve springs

J

Joe Armstrong

New Member

Joined

Apr 27, 2018

• Feb 19, 2024

• #1

I made a valve spring compressor similar to the ones I’ve seen here. I have the cylinder pressurized with air. When I compress the spring assembly the valve moves into the cylinder. The valve stem sinking won’t allow me to pull the keepers.
The center of the valve spring is fully exposed and is not being compressed. I also turned up the air without any luck.
I’m not sure what to do at this point. Any ideas?

 

pacecarta

LOGGED OUT

Staff member

Joined

Aug 1, 2003

• Feb 19, 2024

• #2

with air in cylinder and piston at bottom ,
take a spark plug socket and put it on the retainer and tap lightly with a hammer
it will free up the locks

 

J

~JM~

Wrinkled Member

Joined

Oct 31, 2007

• Feb 19, 2024

• #3

Are you sure the cylinder is pressurized? Do you hear air escaping when the valve opens?

Make sure you rotate the piston to TDC before you remove the springs.

 

J

Joe Armstrong

New Member

Joined

Apr 27, 2018

• Feb 19, 2024

• #4

That did the trick! I found a broken damper on #3 exhaust. Any recommendations on replacement springs? I have a 206/210 roller cam with 1.65 roller rockers.

 

toomanymodz

Well-Known Member

Joined

Oct 14, 2009

• Feb 20, 2024

• #5

PAC 1201

 

J

Joe Armstrong

New Member

Joined

Apr 27, 2018

• Feb 20, 2024

• #6

I went to Champion Cylinder heads today and bought those exact springs!!

 

BUICKTIME

just another member

Joined

Aug 11, 2001

• Feb 26, 2024

• #7

Joe Armstrong said:

I went to Champion Cylinder heads today and bought those exact springs!!

Click to expand...

Champion Irons?
PAC 1201x (x is more durable, but cost more $$). I believe same seat & open psi.
I went with Comp behives recommended by one of the members on here that changed out his 1201's with a similar cam to yours and mine