D2 valve adjusting

[Cysco]

I am having a problem with the diesel motor valve adjusting procedure on my 1956 D2. The valve part I can do but my question is how do you rotate the engine by hand ? I have a front mount hydraulic pump that comes off the crank so using the crank damper bolt is out I assume. The manuals I have don't provide any info that I can find. Any help will be appreciated....Bill

[SJ]

Working on Cats for years you do run in this problem so there are plates on around the flywheel housing or the timing hole to remove and you can take a small pinch bar and turn the engine that way but is a little slow but works.

[drujinin]

Open you decompress lever, "put in start position", then grab the fan and roll the engine over. When you get to the next valve position, put the lever into the "run" position.

[Cysco]

Thanks guys.....I will try both ways and see what happens. It can't be as hard as drilling out and tapping all those broken bolts....still have several to go.....

[SJ]

Yes release the compression as was mentioned and it turns much easier and don,t forget to put the lever back in run to adjust them, forgot to tell you this before in my reply.

[Cysco]

The way I have adjusted valves in the past is :
Intake starts opening adjust the exhaust
Exhaust starts closing adjust the Intake

If there is a better way let me know.

Also I found a "unique" way to turn the motor ......I took the fan belt off the lower pulley and I have a plumbers strap wrench that fit around the pulley and it moves the motor easily and I can watch the valves.

[SJ]

Some people do go by the position of valves to set them but all the years I worked at the dealer and set hundreds of engines I never really went by the valve position but by the marks on the flywheel and made sure on the older engines the flywheel was on correctly and not put on the wrong holes on the crank when it was apart sometime.