[cartec01]

you all for your help previously. I have this sled back together, but am having a problem with upper RPMs. It has no upper end power. I have cleaned the APV's. When I start the sled, the servo motor cycles once, but when I have it on the stand and got the rpm's up past 6500-7000 rpms With WOT the servo motor never opens the valves. I think that is why I have no power on the upper end, but I don't know how to find out why the servo is not opening the valves, even though at start up it seems to cycle correctly.
Do you have any suggestions?
Thanks
Dave

 

[cartec01]

FOLLOW UP... I pulled the cables of the servo and checked them, they open the valves and snap right back as I think they should. Also, I had both clutched lloked at by the dealer, the secondary was rebuilt and a shim removed, and I was told the primary is great.....