6711 blowing out the air intake pipe

[thomas]

hi my 6711 started little banging and blowing out the intake pipe .
do you think it could be a stuck valve , if so how would i know

thanks for any help

 

[corundal]

For a start check the valve clearances.

 

[thomas]

what would cause a 6711 to bend a pushrod . it was only doing light work at the time

 

[gunnnar7211]

hi the lihgt work !
they gett sott bildup on the valve stems take off heads, take out the valves give them a clenupwiht some abraisiw cloth
and reasambel ,this engins neds tho workt hard now and then
to avoid this.