b16 smokes and runs like crap

i have a obdo b16 in my crx and i have only had it for about a month,i had ordered the swap thro a company up in new york, but anyway i have checked everything i could think making it run like crap i've had a few people tell me its a headgasket but i have no oil in the coolant or coolant in the oil, it puffs white smoke and just idles like crap and acts like its gonna die all the time, any help would be appreciated

sounds like a possible head gasket to me, do a leak down on it, it may not be getting into the oil, sounds like its getting into a cylinder or 2 and gettin sent out the exhaust, low compression due to a leaky head gasket would explain runnin like crap as well. just my .02

i will try a leak down test i've also had a local shop say it could be a cracked sleeve, but hopefully coming from japan and only supposedly having around 45,000 miles that wouldnt be the case

it could be a cracked sleeve, but try the least expensive option first, and coming from japan, honestly you dont know what you are getting, and the 45,000 mile thing is just a educated guess, it could be 45,000 or 145,000 or worse, the suppliers dont even know for sure, they are suppost to make sure the engine is in decent shape b4 selling it though, who did you go through?

some company from new york thro ebay, probably not the best place to have bought a motor in the first place :(

h-motors is great, osaka is to be stayed away from, this has been my expirience so far.