piston busted, how to clean it out?

[Oregondunes]

I admit defeat to your challenge right now. *** YOU WIN ***

I will never, nor do i have any desire to shoot pressurized water into my engine cases to dislodge scattered piston debris.

Im curious how you think that only 6psi landed the piston parts into the bottom of your motor ?

When your piston scatters and the motor is turning..... oh say 6000 rpms........... and on top of that piston is 140psi of explosive gases, there is for a brief second way more then 6psi and the actual velocity of those lil pieces is haulin the mail and the crank is spinning the same speed and the motor doesnt instantly stop. It keeps spinning and those pieces keep falling from the piston, along with the material that is scraped off onto the cylinder walls and drug down by the rings.

Not to mention your lower end has a coating of oil (which is probably what saved you). This oil most likely catches some of those particles and keeps them away from your crank/rod.

I wouldnt be "proud" of your results, but rather chock it up to LUCK and share it as just that.

I agree splitting the case is a better method and at the same time I challenge the next guy who is planning on crackin the case to clean his bearings to use my method first then examine the engine to document the lack of effectiveness. The ? of how i expect to get to the bearings to clean them with 1900 psi of hot soapy water just plain luck , i try to exceed the less than 6psi of of pressure that landed them there in the first place. I watch the pressure washer irrigate the bearings from the outside towards the center of the crank. I also found that when i did end up in this predicament a large majority of particles followed the path of least resistance out the transfers and exhaust. I have been lucky and am never ashamed to share my exp. and ideas be them right or wrong. If i should in the future have a reason to believe this is ineffective i will share that also. Anyone else ever try or see something similar with bad results?

 

[Blaner]

I admit defeat to your challenge right now. *** YOU WIN ***

I will never, nor do i have any desire to shoot pressurized water into my engine cases to dislodge scattered piston debris.

Im curious how you think that only 6psi landed the piston parts into the bottom of your motor ?

When your piston scatters and the motor is turning..... oh say 6000 rpms........... and on top of that piston is 140psi of explosive gases, there is for a brief second way more then 6psi and the actual velocity of those lil pieces is haulin the mail and the crank is spinning the same speed and the motor doesnt instantly stop. It keeps spinning and those pieces keep falling from the piston, along with the material that is scraped off onto the cylinder walls and drug down by the rings.

Not to mention your lower end has a coating of oil (which is probably what saved you). This oil most likely catches some of those particles and keeps them away from your crank/rod.

I wouldnt be "proud" of your results, but rather chock it up to LUCK and share it as just that.

i feel i ever so slight hint of tension on this thread and while agree fully with Oregon, N8tsnastyblasty does have the right to do what he feels works for him as well as share his methods and ideas with us. Whether we agree/disagree/like/dislike his opinions it doesnt matter, this is a discussion, not an argument! How this will end is with N8tsnastyblasty and others feeling that their opinions are stupid and hence may not contribute next time to a problem that he may actually have the answer to.

At the end of the day, each man to his own machine and sarcasm doesnt make any friends.

No offense to anyone here, Just trying to keep this a friendly place to visit!

 

[Oregondunes]

There is no tension on behalf.

I view this forum as a place where both the experienced and those with less can ask questions and share ideas. However, when I read something that was mentioned above that is not the norm, it would probably better be pre-faced by "I did this, I dont guarantee it will work for you, but so far so good for me" or "You could try doing this......".

I will disagree all day long that this is NOT the correct way to repair this failure and the cause of the failure needs to be determined first.

Nobody wins if it doesnt work. Fix it right the first time.

 

[Blaner]

I hear you Oregon, i agree fully. I just didnt want to see things get nasty

 

[N8tsNastyBlasty]

i always throw a disclaimer in and attribute my success to luck.If my post are read that's easy to determine. Some ppl get all bent when they don't agree. we are all entitled to our opinions. mine aren't always normal and i like that. If they work for me I'll post it. if they don't I'll post it. One thing i wont do is refer to anyone else s opinion in a condescending way. I have the capacity to respectfully disagree when i do.

 

[Antec1200X]

just buy a new crank and bearings and get it over with.doing half ass jobs will cost you more

 

[hudack]

just buy a new crank and bearings and get it over with.doing half ass jobs will cost you more

but he might not need the new crank i do agree on the bearings while your in there picking out peices you should replace the crank bearings and anything else you feel needs replaced

 

[Antec1200X]

true but once you have the cases apart why take the chance of a failing conecting rod bearings then have to redo it.
but its hard to tell with no pics

 

[YFS101]

There is no tension on behalf.

I view this forum as a place where both the experienced and those with less can ask questions and share ideas. However, when I read something that was mentioned above that is not the norm, it would probably better be pre-faced by "I did this, I dont guarantee it will work for you, but so far so good for me" or "You could try doing this......".

I will disagree all day long that this is NOT the correct way to repair this failure and the cause of the failure needs to be determined first.

Nobody wins if it doesnt work. Fix it right the first time.

I agree, I rebuild dozens of engines every year. If a piston blew apart the first step is to figure out why.... detonation? Pre-ignition? piston/cylinder clearance? port chamfer? If a piston does break apart, it is a mickymouse fix, to just flush the cases and install a new top end. 95% of the time that lowerend is damaged and will not last very long. once the bearing gets a bit of play the seals will leak and you have an air leak causing more problems. For all you know the lowerend may have a bad bearing/seal already and caused the piston failure.
For the cost of new seals and bearings and the 1-2 hours it takes to change them i highly recommend you do the job the correct way. Putting an new top end in an engine when you dont know the condition of the bottom end is a costly gamble, and can cost you 2X more in the long run

FWIW a good practice is to inspect the top end nmore often. even if that means just doing a compression check and a leak down test every month or two.
this way you can catch problems before they are major issues.
When rebuilding its a good idea to replace the bottom end, every other top end. If you blow it up, do both !