Is my crank bad?

[tonywayne]

Ok first here is a link to my other thread i started from the smoking. http://www.blasterforum.com/engine-13/alot-smoke-barely-run-help-24779/ Was for sure it was the crank seals. Replaced them and sh1t happend agen right after i started it. So i took it apart agen this time to maybe check the bearings. The new seal still looked good just like i put it in. Iv read ther shouldnt be any play on the crank left right up down. Is there any tolerance becaus my crank does move just a little left and right. Its so small that you wouldnt be able to see it on a video cam or i would post it. If there is absolutly no tolerance at all than i have a bad bearings or somthing. Also would that caus it to smoke even if the seal is fresh. It also makes a knoking sound when idleing ,didnt know if it was normal. Anyway it blows white smoke like hell and bairly runs. Changed seals and no fix. How the hell is the trany oil getting in there. Please help, just bought this thing and its getting frustrating

 

[Awk08]

are you sure you put the seals in the right direction, i heard someone else saying one of them is easy to put in the wrong way???
and i dont think there should be any play in the crank, and knocking is never good, better open it up before you hurt anything else

 

[blasterfreek30]

there will be a small amount of play left to right on the rod....u can check ur crank bearings by wiggling the flywheel...if that has any movement at all......u need new bearings, u can also do a leakdown test to find out where the leak is coming from....mabe the cases themselves are leaking

 

[Kennedy_Power]

Do a leak down test on the engine.
Roll the engine over to bottom dead center
Use a adjustable rubber core plug in the exhaust port tunnel
Use another adjustable core plug in the intake boot
Pressure the engine at no more then 5 PSI, turn off the air supply and the engine should hold the pressure for no less then 15 minutes
I made a leak down tool, I can take a pic of it for U