so, this wed. night, i will make the desision to part out my car or to continue to get it running. i had put a rear main seal in the 3.4 i was building. then i went to adjust the valves. i rotated the motor to #1 tdc. it turned easily. After i adjusted one set of valves, i tried to turn over the motor to #4 tdc, and it was VERY hard to turn. I back off the valves to see if that is the problem, but it wasnt, and now that the motor is in the car, im thinking it may be the rear main cap that i loosened to get the rear seal out. I torqued it to spec and it rotated fine for the first valve adjustment, but now that it is in the car, the starter is straining to turn the motor over. I will loosen the rear main cap on Wed. night and hope it spins over. If not, im moving on to a 4th gen T/A or dropping in a carbed v8 and leaving these parts up for grabs if nobody wants the whole car as is.
-3.4 block 58k miles
-NEW 3.4 heads, Mild port and polish, gasket matched and shaved .030" for more compression
-ported Lower, mid, and upper intake manifolds
-polished throttle body
-NEW comp cam 260h(.440 lift and 212 duration at .050 lift)
-NEW pace setter headers painted with aluminum 1200* paint and Y pipe modified to fit a side exhaust
-side pipe,hanger,dynomax cat, ballflange to fit Ypipe
-New spec stage I clutch rated for 430 ft lbs.
-Borg Warner T5 with new 1-2 shift fork
-stock, shortened shifter with home made 2nd gear bump stop and B&M leather ****
-Edelbrock Valve Covers
-K&N filter
-All electrical and emmisions crap
-And if i forgot something you want, ask if i have it

 

I really doubt you could have torqued that main cap down so tight that it is restricting the crank, especially since it turned over fine to start with. I would turn it over by hand and do each valve in sequence, tightening them only just past the point that the pushrod will no spin and see what you have after that.

 

make sure u didnt disturb the main bearing,could u have possibly droped a nut or bolt into the engine also?

 

thanks for the input, ill pull the vc's and try again tomorrow. i did try to turn it by hand and i had to do it with a pry bar on the harmonic balancer bolts, if i tried turning it by the center bolt in the crank, i would just get tighter