vibration dampener

I am putting my 4.3 back to gether and my dampener wont go on all the way it starts thin stops just befor it go's into the timing chain cover any ideas
Please:popcorn:

i see you looking ;lol

First make sure you are installing the woodruff key on properly. Make sure the surface of the damper and the crankshaft is clean and there is nothing on either one. Lastly, you have to have the proper tool to get that on there. Do not use a hammer or anything like that or you'll damage your engine.

YEA i even toke the key off and tried it thin and it still wouldint woldint go but 1/16 of an inch past the timing seal im aFRAID IM SCREWING UP THE threads in the crake

As said you need the tool to do the job.
Better get the proper damper install tool.
Before you mess it up.
Some auto places rent or loan the tool.
MT

the tool as stated in the mannual is the bolt you just prssit on with the bolt ive tried every thing you guys have said and no go im really gitting:banghead: pleas HELP

the tool as stated in the mannual is the bolt you just prssit on with the bolt ive tried every thing you guys have said and no go im really gitting:banghead: pleas HELP
Try Checking the damper inner diameter and the crankshaft outer diameter for corrosion. A small amount of corrosion may be present and can restrict you from getting it on. Use some very fine steel wool on the surface and lubricate lightly using clean engine oil. Make sure the keyway is checked for corrosion and clean lubricate it as well. Ensure that the keyway is positioned and seated properly. With that, using the proper tools to install. It should go on.

Chevy's idea of an interferance fit is , well has been , very interfering.

Perhaps you have a crank snout on the high end of tolerance and a damper on the low end of tolerance for size. The nose of the crank can also be bigger from using a certain tapered puller.

An interferance of 0-.005" is customary and sometimes makes dampers extremely hard to get installed. "get bigger hammer" or reduce interferance fit.