4430 scv

[finn1wil]

one scv is not holding the load, its not the cylinder. So i think we are looking at the seats on the poppets. I had them out and noticed the seats had a rust color to them. After reading the service manual and some past archives it appears we may need seats ground on the poppets. Any advice would be appreciated. Thank you

 

[jared in wi]

The seats on the poppets normaly have a rust color to them. The seat is a neoprene seat that contats the SVC housing. Check the neoprene seat and see if there is any debrie in it. More than likely you need new poppets and an o-ring kit installed.

Jared

 

[tim s]

They will work out by just changing the poppet valves, pay attention to which valves have o-rings on the stems the pressure ones.mail me if you want..

 

[finn1wil]

i will start with an o-ring kit and see what results that gets us
thanks for the post

 

[tim s]

Get the 4 poppet valves too....

 

[finn1wil]

will do thanks, Tim