ford 5000 -5200

Started to rebuild the engine yesterday removed fuel pump last weak and sent away with injecters.report one broke cam spring 4 bad injectors.removed pistons today #4 pist in #2hole 2 in 4 ; 1 and 3 where right .piston 3 @ 4 had one broken ring on each . must have been a back yard fixer do the work
question #1 the engine counter balance inside was not lined up with timing marks we put are own marks on before removel.should i reinstall on factory marks or my marks and at #1 tdc or does this matter.
quest #2 rotary fuel pump install on dowel at #1 tdc pump gear turns 2 times to crank shaft 1 time how to tell if your right or 180 out of time.
 
Get yourself a service manual. Even if it is just an IT one. I have not overhauled a Ford 5000. I have done many others and they all time different Brand to brand different. Example. The balance shafts on a JD 2020 do not time with the timing gears. You don't even use any gear marks. You just put the engine on TDC and the balancer timing marks point toward the crankshaft. They even have a fancy little steel ruler that has a "Y" on the end to make sure you can find the crankshaft. LOL.

I would want to go by the book to go back to factory settings. It sounds like someone that was not a real good mechanic has worked on this motor before so he may have had it out of time.
 
I missed the second question. The find TDC on an engine turn the crank in the running direction(This gets all the backlash in the timing gears out) Bring the number one piston to top dead center. Then look at your valves if they are both closed then you are on TDC is one is open then you need to go 180 degrees.

If you accidentally go past TDC on the compression stroke don't just turn it back to the timing mark. Go way passed it backward and then come back to the mark. This the back lash is back out. This can make the difference of several degrees on the injection pump.
 

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