Todays Project - What did you do today?

[f350ca]

The local water well driller gave me a call the other day, seams they've been having trouble keeping the air filter clean on the 3406 Cat engine on the rig. The turbo housing was cracked and the exhaust was getting sucked into the intake. I suggested they take it to Calvin a local welder who did a spot on job, hope it holds. But with a new gasket it was still blowing out the joint.

Wonder why? None of that crud was gasket, it was carbonized cast iron, the surface was pretty much even with the flange to the side.



This was an easy one, clamped the face down and tilted the head then went over it with a fly cutter. Had to remove 0.065 to clean it up.



The face of the turbo needed cleaned up too, but what a beast to hold on to. Tried an angle plate and clamping to it but no luck. Finally ended up blocking the indexing head with the 3 jaw and grabbing the inside of the exhaust outlet, then using a jack and clamp at the other end. Need to spring for a set of adjustable parallels.





The exhaust manifold only took about an hour to set up and machine, spent 5 more on the turbo, was afraid to take more than 5 thou passes, the welds were pretty hard and not the most secure setup.