3406E injector cups

You can make the tool to remove the cup I believe it’s a 1” or 1 1/8” threaded rod and make like a slide hammer type tool. The cup is threaded on the inside you can thread the rod into it and slide hammer up and pop it out. If you have a set of calipers a long roofing nail with a big head will work for the injector tool measure it off at 3.07” and file down flat until it gets there. Crude but works for the poor folks. The retaining compound only gets used below the lowest oring on the cup, not the orings, not the head, or any other part of the cup. Clean oil on orings. They make a compound also that is the technical lube for the orings on injectors but I don’t use that myself. It’s a 50/50 mixture of the compound and clean oil. Myself, clean oil is sufficient. Injector hold down bolts are recommended to be replaced when removed. If you never rebuilt Jakes it would be a good time to do that not real expensive just a little extra time. Barring tool makes pinning the flywheel a lot easier by yourself. It’s J38587a for that part number.

 

fuel in coolant is top injector sleeve seals. bottom sleeve seal failure pressurizes the cooling system.
typically it is just the seal not the sleeve so you could save a dollar by just replacing seals.

generally if the head is cracked it comes from the face inside the cylinder between the valves. the crack grows until it reaches the coolant gallery around the injector sleeve. most times you'll notice coolant entry, hard starting, hydraulic lock on morning start and white smoke on start up with a sweet smell. I think its a safe bet your head should be OK.

you'll need

sleeve seals 6x 1662903 seal 6x 1662904 seal 6x 9X7430 seal
sleeves if you wish 6x 2274239 sleeve
injector seals 6x 2481394 seal kit
oil can
retaining compound
valve cover seals if you wish 3x 2429537 seal
injector hold down bolts if you wish 6x 8S9191
sleeve removal tool (important for square install so no pinched seals. it has a guide dolly) 9U6891
turning tool (or front pulley bolts and a bar) 9S9082
injector height tool (or use verniers, 78mm) 9U7227

 

make sure all 3 injector orings are replaced and they aren't rolled. use vaso or clean oil to lube just prior to installation. use a ratchet to pull the bolt down by hand so you can feel that the orings aren't pinching as it goes it. then torque hold down bolt to 40lb/ft.

youll also need to do a full value set after you re fit the rocker gear.

 

1. Tighten center bolts (2) to a torque of 54 N·m (40 lb ft).

1. 
   Tighten nut (3) to a torque of 54 N·m (40 lb ft).
2. Tighten outer bolts (1) to a torque of 54 N·m (40 lb ft).

1. Tighten center bolts (2) to a torque of 109 N·m (80 lb ft).

1. Tighten nut (3) to a torque of 109 N·m (80 lb ft).

1. Tighten outer bolts (1) to a torque of 109 N·m (80 lb ft).

personally I torque to 100ft lbs.

valve set.... back your jakes off before you start the valve set and then set them after you set their respective exhaust valve. inlet 0.015' exhaust 0.030' 340A/B/C jake 0.033' 340D jake 0.027"

number 1 piston at TDC compression (camshaft lined up)
inlet 1,2,4
exhaust 1,3,5
injector 6,5,3

number 1 piston at TDC exhaust (camshaft 180 out)
inlet 6,5,3
exhaust 6,4,2
injector 1,2,4