Port holes right above the crankshaft..? HELP!

[Scottt07]

I bought a 2001 blasty on craigslist off some guy who blew it up the took the head off of it then let it sit in the back yard for about 3-4 months.. bearins still feel fine but the inside cavity is all nasty including the two port holes... im gonna clean it up with some carb cleaner and the air compressor..dothose ports go that breather hose for the motor? I thought those might be to releave the bottom end pressure???

I know someone one her knows...


THANKS!!! I:I

 

[bigdaddycaddymane]

i belive the ports you are talking about supply oil to your crankshaft bearings. are there one on each side, kind of small? if so then i think crank bearing oil supply.

 

[brandoz28]

i belive the ports you are talking about supply oil to your crankshaft bearings. are there one on each side, kind of small? if so then i think crank bearing oil supply.

i'm pretty sure that's what they are as well, but i'm not totally sure

 

[bigdaddycaddymane]

i wouldnt spray carb cleaner in there. but if you do blow it out real good like you said with air then drop some two stroke oil in there on the crank bearings as best you can.

 

[YZ Otis]

Are yur talkin bout the 2 holes right above the main bearings on your crank? Those let the oil in yur fuel drain down & lubricate your crank bearings/seals. If you have crap in those holes you need to dig deeper & clean everything. Ya don't wanna blow whatever's in those holes down into the bearings. IMHO

 

[OConnor Racing]

Good call YZ! Cut your losses and split the cases. No way you're getting the crap out and what you can't see is the junk in the oil passage, is also in the bearings.

 

[speedracinshift]

i agree i would split the cases and just clean it out and than this way u can check to see if any thing else is out place. and if u split the cases i would throw in new crank seal if your ganna have the cases a part.

 

[Scottt07]

ok thats what those are..
Its NASTY all gooky.. theres no other way to clean it air isnt enough...
I rebuilt another blasty about 4 months ago it was all nasty inside too. i used a lil carb cleaner and put her together she runs great..
any tricks to cleaning them out? i was gonna try goin to and buy some pipe cleaners

 

[Scottt07]

MONEY MONEY MONEY... im unemployed i already have to do the top end i was hoping i could get away with cleaning it out..
splitting the bottom end is prob a pain in the ass an i wrong???
Im trying to rebuild to sell it..

 

[speedracinshift]

u could try and take a shop vac and try to suck most of the stuff out of it if u realy dont wanna split the cases.

 

[Scottt07]

I dont wanna waist money and throw it together if shes gonna blow back up in 10 minutes. But moneys low..Im actually saving to buy the piston for the rebore... :/

 

[speedracinshift]

cases are a pain i think. if i were u then u would just pull the bottom end from the bike since your straped for $$ and tip it up on side then u mabe able to take some carb cleaner and lightly spray it into them try not to blow any trash down into the hole tip it down onto a rag so that u can kinda flush it out and then i would try to shop vac the rest of what evers in there out i wouldnt blow any thing down into it thats about all that i can think of with out splitn the cases

 

[brandoz28]

i haven't actually gotten into the splitting yet, but i got my motor completely stripped down and ready to split in a little over an hour with no air/power tools. its not that horrible to do it, and its the best way to do it. think of it this way, little money for sealer and gaskets now, or lots of money for a complete rebuild if that stuff gets in the bearings and messes them up

 

[Scottt07]

Thats what i was thinking speed racing..
Ima try the carb cleaner and see how it goes.. depending on how it goes...i mite be splitting it tonite....

 

[speedracinshift]

what type of crap fell in u gotta pic of how its sit n right now??

 

[Scottt07]

iwish i knew it looks like just water and dirt.. yikks!!! (I took the engine out last nite..)
I shoould have taken a pic before hand.. I used some carb cleaner tipped the motor completely upside down and worked at it..Its spotless now... i used a good flashlight and from what i can see its clean.. im gonna spray it one more time to be safe then fll the whole crankcase up with oil for the nite or a few hrs..