How to clean a bottom end !!!

[adee]

Ok finally got my top end rehoned and got a new wisco piston. ready to slap in on but want to clean the bottom end really good to make sure there is no left over metal shavings and what not from the piston. Whats the best way to clean it out without taking the motor apart. I know the best ways to take the motor out and open it but doing so kinda scares me, so need some advice asap on cleaning it without opening it.... Thanx

 

[UncagedShadow]

take the motor out of the frame, and flush with a mix of diesel fuel and whatever premix you use. Do this flush over and over. After you feel the flushing is done, leave the bottom end full of the diesel/oil mix for several hours to make sure there were no holes or blowouts caused by the piston takin a sh*t.

 

[Blaaster]

If you take the flushing way out, remember to put a quantity of your mix oil in the case and swill it around to recoat the bearings. The bearings will not have enough oil on them after flushing, it is not the oil in suspension that lubricates, it is residual oil in the case which gets splashed around that lubricates.
If you have suffered a piston failure and there is metal in the case, no amount of flushing will remove metal caught in bearing cages. Play it safe and strip down and wash every moving surface, may save you a lot of cash!

 

[pbblaster2]

just split the cases, no need in not getting everthing out and blowing out a crank or another top end, just take your time and lable carefully

 

[adee]

just split the cases, no need in not getting everthing out and blowing out a crank or another top end, just take your time and lable carefully

is it a biotch to take it apart dont want to take sh*t apart then have a hard time figuring where things go. Dont even know what side to start on, which side do i take apart or do i take both sides apart.... im new to 2 stroke motors all ive never worked on is B series and K series honda motors

 

[Larry's Shee]

Clymers to the resque I:I or pdf

 

[piezzi]

Yeah, it is a biotch to take things apart....but it's even more of a biotch to not do it and then having to take it apart anyways a short distance down the road when your bottom end grenades.

Get to work Mr. Clean!

 

[UncagedShadow]

Rotating the crank by hand while the cases have the flushing mix can help remove any debris in the bearings.

Disclaimer - I am answering your question, I am in no way telling you this is 100% safe nor do I take responsibility for any carnage as a result of debris in the bottom end.

 

[adee]

theres a hole is the bottom end where the rod rotates towards the back of the 4 wheeler... i was checking it thru the top of the bottom end rotating the crank and saw it, lmk is that a passage where oil goes thru or is it a hole from the piston granading