Cylinder head wrench

If any of you guys has the special wrench for torquing the head nuts under the injectors, if possible could you post a sketch with dimensions so i can fabricate one from ring spanner (i know it,s 7/8 A.F.). I,d like to buy one,but they seem hard to get hold of, plus some dealers over there can,t ship to U.K.

working on it now.

here it is, the body of the shaft is 1/2" bar stock

Here are pictures of the special tools used for engine rebuilding. It may not help you much in this case, but as a reference.

I think Jeds dimensions are good. Unfortunately, I think that the wrenches are made up of good tool steel, at least 1070 or 1095 and heat treated. If you make one up out of mild steel, I'd be suprised if it does not twist up as soon as you put the torque to it. Dave

Thanks guys for all your help, Red Devils dude dimensions were just what i needed. I know i.ll have to use a lot beefier material to make one, i just needed basic shape and sizes. Thanks again.

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Anyone out there can correct me if I'm wrong, but I believe I read in one of the -20 or -34 TMs the special tool is only needed for the head bolts which are underneath the rocker arm shaft with the rocker arm shaft installed. I THINK if you remove the rocker arm shaft, you can torque those bolts without using a special tool. Removing the rocker arm shafts might be easier than fabbing up a special tool.

I strtaed to post how I made one last night then a tranformer blew and it was total darkness. Long story short, I cut the box end off a 15/16" wrench leaving about 1/2" on. Then I welded a 10" long 1/2" drive extension on the box end of the wrench at about a 70 degree angle. I had to grind down the outer circumfrence of the box end just a bit for clearance but it works perfectly and only cost me 10 bucks for the extention I had to buy. I would post pics but my camera is jacked up again. The wrench is needed for the head nut under the injectors.

The wrench is needed for the head nut under the injectors

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BAM
it I had CAD at home I could make a better one but owell.