Sluggish performance lately. Hard time reaching 50 mph without hybriding. I’ve flushed pipes, hayfilter, cleaned out ash from the grateless dump area and burned the intake over and over again. Also the guages responded sluggishly and even running the airmixing valve almost closed I wasn’t able to reach the vacuum I’m used to.
The other day I had a smoky starttup. I shut the blower down and jumped down from the bed to crank up. That’s when I saw smoke coming from behind the cab, right where the twin pipes connect with rubbers down through the bed. The rubbers where old and crispy when I installed them. Now they are even older and crispier
Made new connections. What a difference. I can peg the guage again and the mixing valve is more sensetive than ever.