06-trx Gone Bad

[buck naked-r]

whats up people?

my net was down for awhile but now im back with highspeed....no more dialup

well this is one of the 06 trx i did awhile ago................don't know what happen but the rod snapped in the middle and the bottomend......cylinder and head is good,but the bottomend is gone
it locked up so hard some of the clutch fibers broke

http://i118.photobucket.com/albums/o101/buck450/2006_0306Image0003.jpg
http://i118.photobucket.com/albums/o101/buck450/2006_0306Image0009.jpg
http://i118.photobucket.com/albums/o101/buck450/2006_0306Image0005.jpg
http://i118.photobucket.com/albums/o101/buck450/2006_0306Image0006-1.jpg
http://i118.photobucket.com/albums/o101/buck450/2006_0306Image0010.jpg
http://i118.photobucket.com/albums/o101/buck450/2006_0306Image0011.jpg
http://i118.photobucket.com/albums/o101/buck450/2006_0306Image0012.jpg
http://i118.photobucket.com/albums/o101/buck450/2006_0306Image0013.jpg
http://i118.photobucket.com/albums/o101/buck450/2006_0306Image0014.jpg

all the bearing are good too,i dont know what happened here

may be to much compression

this setup was

stock 12.1 piston
.030 shaved off head
stage-2 cam

with the stock pipe

maybe to much pressure build up

[Dupontster]

Ouch!

[250r4life]

a little JB Weld and duct tape should fix that ;)

[TRX450RACER174]

Wow thats a mess!!!!!!!!!!

[allstock]

Originally posted by 250r4life
a little JB Weld and duct tape should fix that ;)

x2

[honda4life72]

Originally posted by 250r4life
a little JB Weld and duct tape should fix that ;) forgot bubble gum:devil:

[250r4life]

Originally posted by honda4life72
forgot bubble gum:devil:

yah... i forgot zip ties too...

i wasnt trying to make the complete comprehensive list :D

[kawabunga]

ouch! that sucks.

[FreeStylerEx]

that sucks! throw the stock cam and stuff back into it and take it to your honda dealer and be like warrenty this! haha Ive never heard of a 2006 breaking a rod like that besides a yfz. But man I hope you get that thing back together

[jsu101]

I'm sorry

[pro-rider46]

dude


that sounds like a huge rebuild to me. put a stroker crank in er and a 101mm cylinder. 14:1 piston, port & polish, Stage 3 cam, kibblewhite vavles and springs, DEFINATLY NEW BOTTOM END!!!, etc.


sorry i get excited sometimes when i see a bare motor

[400exrider707]

Holy cow, I sure would like to know what happened there! How does the cylinder walls look? I cant believe all of the bearings are still free rolling and it snapped, how the heck would it even do that?

[buck naked-r]

Originally posted by 400exrider707
Holy cow, I sure would like to know what happened there! How does the cylinder walls look? I cant believe all of the bearings are still free rolling and it snapped, how the heck would it even do that?

may have been detonation from bad fuel


this is a customers bike so its up tp him what will go back in there

[TheBlasterMan]

that hurts my eyes....

[benwa450r]

My 04 did the same thing. I changed both engine cases, new crank (had falicon rod put on and trued and welded), new cylinder and piston. I changed every bearing and oil pump for reliability.

Good luck

[Jason Hall]

That Is total destruction, what a shame. The one pic looks like the needle bearings are flat, like the bottom crank bearing went bad. Might just be how It looks from the pic. That will cost some dough. Maybe he over reved the dog balls out of It & stretched the rod.

[chris46250r]

I wonder if this is the same one buck has the timing retarded on and runs 92 mph?

[buck naked-r]

Originally posted by chris46250r
I wonder if this is the same one buck has the timing retarded on and runs 92 mph?

no,thats my bike and its a 05trx

[buck naked-r]

Originally posted by buck naked-r
no,thats my bike and its a 05trx

and i have priced everything from SH

it will run $1000 with a new hot rod crank

head is good
piston is good
cylinder is good
ALL the bearings are good


crank is bad...$319 off the org for HOT ROD crank
cases is bad...$190 a piece
balancer is bad...$120 or so
clutch is bad...$45 from RM

[chris46250r]

So are you actually gonna buy all these new parts and reuse the bearings? To risky for me.

[Supercup]

Originally posted by chris46250r
So are you actually gonna buy all these new parts and reuse the bearings? To risky for me.

I have to agree with Benwa450r and Chris - you can't always see what got into the bearings and they may look fine and seem fine, but there is a lot of debris from that type of catastrophic failure.

Do yourself a favor and spend the extra dollars now and change the bearings for sure and the oil pump is a good idea as well. That way you will eliminate another catasrophic failure linked to this one.

Not doing it may work out fine, but the alternative is much more expensive and time consuming.

Good luck with the repair and getting back out there quick.

JCM

[buck naked-r]

its not up to me

its the customer that wants to find the cheapest way to rebuild it

[buck naked-r]

its not up to me

its the customer that wants to find the cheapest way to rebuild it

[buck naked-r]

its not up to me

its the customer that wants to find the cheapest way to rebuild it

[chris46250r]

I would tell them you will not finish it without new bearings. When it lets go two days after you give it back to him it will be some bad advertisement for you. Nobody will listen to the explanation, they will only remember that you put it together.

[hendershot106]

i would never even dream of putting that motor together without all new bearings and seals and also at least a piston while its apart-----( u really think that piston is in good shape?????? look and what the rod did that it is attached to?????? ):huh :huh :huh

[86 Quad R]

its assinine to even think about putting the engine back together without replacing the bearings and piston. :huh

[440challenger]

Skimp out on 30$ main bearings??? You need new cases, anyway . That sure is off the wall. I would never rebuild something like that for a customer if they are that cheap. Like others say ,when it lets go or has the smallest problem its your name no matter what. ;)

[buck naked-r]

well the crank bearings will be changed.......i think you have to use the HOT-ROD bearings with there crank anyway

its the tranny bearings that will be reused

balancer bearings will also be replaced