noob valve spring question
Hey guys. Thanks again for the info. My new job doesn’t allow the free time I used to have, so it’s taken me a while to get back to this. I went ahead and removed the exhaust valve spring from cylinder 2 and found it used the same 2-groove locks as the intake.
I noticed the springs on the exhaust are visibly shorter than the intake springs, which makes sense since they had that large, heavy rotator retainer on top of them.
I ordered the Comp Cams 744-16 retainers and this Sunday I swapped all the springs and retainers for the new parts. When I got to the driver’s side head I found those exhaust valves have 4 grooves.
Not sure why they used one style exhaust valve on one head and another on the other head, but I got all the springs changed out.
The problem I’m having is when I bolted the rocker shaft back on, all of the rockers feel tight. Aren’t some of them supposed to be loose, based on where the cam lobes are oriented? I tried turning the crank with a ratchet and it only goes maybe 10 degrees before stopping. I didn’t try to force it because something is apparently not right.
How does changing valve springs make everything too tight? I didn’t touch the pushrods or rockers; I’m at a loss here. This was a running engine. It wouldn’t go over 4 grand, but it ran fine up to that point. I guess I can take the rocker shaft off of one side to see if that frees things up because the even number head does look like it's tighter than the other side.
Hey guys. Thanks again for the info. My new job doesn’t allow the free time I used to have, so it’s taken me a while to get back to this. I went ahead and removed the exhaust valve spring from cylinder 2 and found it used the same 2-groove locks as the intake.
I noticed the springs on the exhaust are visibly shorter than the intake springs, which makes sense since they had that large, heavy rotator retainer on top of them.
I ordered the Comp Cams 744-16 retainers and this Sunday I swapped all the springs and retainers for the new parts. When I got to the driver’s side head I found those exhaust valves have 4 grooves.
Not sure why they used one style exhaust valve on one head and another on the other head, but I got all the springs changed out.
The problem I’m having is when I bolted the rocker shaft back on, all of the rockers feel tight. Aren’t some of them supposed to be loose, based on where the cam lobes are oriented? I tried turning the crank with a ratchet and it only goes maybe 10 degrees before stopping. I didn’t try to force it because something is apparently not right.
How does changing valve springs make everything too tight? I didn’t touch the pushrods or rockers; I’m at a loss here. This was a running engine. It wouldn’t go over 4 grand, but it ran fine up to that point. I guess I can take the rocker shaft off of one side to see if that frees things up because the even number head does look like it's tighter than the other side.
