osti33
Needs a job
Posts: 2973
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posted June 11, 2006 04:17 PM
 Edited By: osti33 on 27 Feb 2007 19:29
Tagged a valve...errr 4!! pics inside (dial-up don't bother)
I was at the track with DWB doing a little testing and tuning. Bike was running strong! Then all hell broke loose. Bike went boom at the big end of the track.  I pulled the clucth in quickly and the bike instantly died. I knew that wasn't a good sign. 
Not really sure why it tagged a valve. When I built the motor all my valve to piston clearances were about .085" intake and .070" exhaust.
Bike had Muzzy springs so I don't think I floated a valve. I think that the rod is also bent because the melted piston is a little lower in the hole than the number 2 piston. Maybe it just looks that way because the top of the piston is all mangled. I will have to split the cases to find out for sure.
Here are some pics of my blown up 1375 motor.
The first 2 pics are all of the pieces that were inside my header. It is what is left of one of the valve seats.
Next pic is inside the throttle body.
Next we move on to the cylinder head. First one is the intake side of the head. If you look you can see mangled valves.
Next is the combustion chamber. You can see 3 of the valves. The spark plug is still in the head. Not that you can really tell. I couldn't get it out of there. 
Moving right along. Next we take a look at the piston. Notice the GIANT hole in the top of it. Where is the head of the 4th valve you ask??? Look no further. Here it is stuck in the top of this piston.
  
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fish_antlers
Administrator
The Truth is Out There
Posts: 21894
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posted June 11, 2006 04:30 PM
well that can't be good!
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What business is it of yours where I'm from, Friendo?
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rgd808
Parking Attendant
Posts: 3
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posted June 11, 2006 04:32 PM
i'll pray for a quick recovery
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rgd808
Parking Attendant
Posts: 3
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posted June 11, 2006 04:34 PM
godspeed ol 1375
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Outsiderzx12r
Zone Head
Street Racer
Posts: 841
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posted June 11, 2006 04:38 PM
OUCH!!
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OutsiderZX12R
2000 ZX12R-A1
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Wideout
Expert Class
Posts: 300
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posted June 11, 2006 04:55 PM
ew man. Sorry to see.
Hope you can get it fixed by October. Thanks for posting pics. Never seen anything like it.
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navpreet318
Expert Class
one crazy 12
Posts: 192
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posted June 11, 2006 06:02 PM
awwwwww man...thats bad.....never seen anything like it......sorry for you.....build it up into a more powerful motor now.......get a myzzy billet stroker or something.....failure is the step towards higher sucess....
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2005 ZX-12R,Arata Full Ti, PC3,Gillis
Rearsets,Muzzy Velocity Stacks,BMC
Race filters.One Crazy 12
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BROOKLYNNYZX12
Zone Head
Posts: 520
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posted June 11, 2006 07:53 PM
Thats got to be the most gruesome blow up I have seen in a long time...Good Luck getting that back together...see you at the grudge race!
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Orient Express Top Street Bike Winner 8-4-07
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entropy
Moderator
Posts: 8671
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posted June 11, 2006 10:34 PM
Edited By: entropy on 12 Jun 2006 10:35
Osti,
now THAT is gonna make for some cool garage jewelry!!!!
Seem like both EXHAUST (thanx VH  ) seats popped out, eh?? Anyway you can find out if those two seats were previously replaced/repaired?? I've seen a couple a really fukked up heads, but never seen the seats pop out.
If the seats were loose in the head, perhaps they left some chatter marks??
Maybe time to sell me those 2 used cams and start a super fund for your impending cleanup.
BTW: I have a very clean OEM cyl block if you want it (free to you!)
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This moderator uses moderation in moderation
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jaws12r
Novice Class
Posts: 45
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posted June 12, 2006 01:23 AM
were u running on the stock valves ?? hell man hope my 1375 does not turn out like dat too
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your car is slow
Needs a job
Fuck Nitrous...Got Boost?
Posts: 4089
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posted June 12, 2006 03:15 AM
owwww...thatll buff right out!
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TRNorBRN6001
Needs a job
Posts: 2021
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posted June 12, 2006 05:43 AM
Dang, thats real nasty. Got a stock rod if ya need it.
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TFA 200MPH CLUB MEMBER!
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kram
Expert Class
Posts: 404
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posted June 12, 2006 06:32 AM
That would make me cry.
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Not just a great barbarian, the greatest barbarian, bar none.
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vozizm
Needs a job
Got Nothing Witty To Say
Posts: 4417
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posted June 12, 2006 06:43 AM
Son.
I KNOW you will have her right in no time at all!!
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VOZ
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VincentHill
Needs a life
Posts: 6520
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posted June 12, 2006 07:26 AM
I thought the smaller valves were Exhaust that is where the Seats look like they are missing to me>
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Made History @ Daytona and still one fast old man!!
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entropy
Moderator
Posts: 8671
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posted June 12, 2006 09:34 AM
quote:
I thought the smaller valves were Exhaust that is where the Seats look like they are missing to me>
wise ass
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osti33
Needs a job
Posts: 2973
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posted June 12, 2006 01:00 PM
Edited By: osti33 on 12 Jun 2006 14:03
Wideout, No worries. It will be ready for Texas. 
Karl, Cool garage jewelry indeed. I will probably take you up on that block. The more I look at mine the worse it looks. You don't owe me anything for those cams. If anything I probably still owe you for all the times I've crashed at your house and drank your beer and ate your food.
Jaws, Stock intake valves and stainless exhaust valves.
YCIS, Got any JB Weld?? I should be asle to fix her right up with that. lol!
TRNorBRN, I will let you know if I need that rod. Thanks!!
Kram, I had to drink lots of beer to drown my sorrows.
Voz, I will get her going again. No worries on that bro.
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osti33
Needs a job
Posts: 2973
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posted June 12, 2006 01:02 PM
Edited By: osti33 on 12 Jun 2006 14:03
I will take some more pics later this week when I split the cases to check for further damage. I just wish I knew what the hell caused this mess. I know it tagged a valve but I'm not really sure why.
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VincentHill
Needs a life
Posts: 6520
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posted June 12, 2006 01:31 PM
quote:
I will take some more pics later this week when I split the cases to check for further damage. I just wish I knew what the hell caused this mess. I know it tagged a valve but I'm not really sure why.
Seeing the sears removed with using a Cutter was the surprise to me! That is truly a "Hard" Part that caused a lot of the damage.
Hopefully you can save your Transmission and assorted pieces (I mean whole parts!)
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Made History @ Daytona and still one fast old man!!
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NOS1290
Expert Class
Posts: 103
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posted June 12, 2006 02:10 PM
Serious Suck.
Unfortunately Cams are toast as well. I have lost two heads prior with exactly the same result. The first one failed (I think) because the stock exhaust valve broke / melted off the stem. Replaced cams and head with SS Valves. The second one failed after a retainer failed or spit out. Mabey you can weld three of them together to make one good one? I now run 70 pounds of spring pressure.
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osti33
Needs a job
Posts: 2973
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posted June 12, 2006 02:29 PM
Edited By: osti33 on 12 Jun 2006 15:31
Mr. Hill,
I hope to be able to save the crank, tranny and cases at this point. I will know more when I split the cases.
NOS1290,
Nope. Cams look fine. I must have lucked out there.
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blitzkrieg
Needs a job
Road kill = Free lunch.
Posts: 2044
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posted June 12, 2006 09:42 PM
I've seen one with similar damage and the general concensus on that one was the nitrous bleed-off failed.
It knocked the retainers right out like that too, holed the 3&4 piston and shot the #3 rod right through the lower.
He never found it the way I remember.
Sorry for bad shit happening bro. I know you'll get it back up and clean soon.
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TRNorBRN6001
Needs a job
Posts: 2021
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posted June 13, 2006 06:18 AM
Are you thinking about 86mm JE's, because I hear Entropy has an in with Noonan.
I do believe he got his custom thick top fatty slugs in just two weeks.
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TFA 200MPH CLUB MEMBER!
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jaws12r
Novice Class
Posts: 45
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posted June 13, 2006 07:37 AM
Edited By: jaws12r on 13 Jun 2006 08:40
Hi entropy , wat do u need the extra set of cams for ? building another motor ?? heehee
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jaws12r
Novice Class
Posts: 45
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posted June 13, 2006 07:44 AM
quote:
Wideout, No worries. It will be ready for Texas.
Karl, Cool garage jewelry indeed. I will probably take you up on that block. The more I look at mine the worse it looks. You don't owe me anything for those cams. If anything I probably still owe you for all the times I've crashed at your house and drank your beer and ate your food.
Jaws, Stock intake valves and stainless exhaust valves.
YCIS, Got any JB Weld?? I should be asle to fix her right up with that. lol!
TRNorBRN, I will let you know if I need that rod. Thanks!!
Kram, I had to drink lots of beer to drown my sorrows.
Voz, I will get her going again. No worries on that bro.
May i ask why are u running Dat mix of valves?? anyway seems like the SS valves are still holding on and wats missing is the stock ones hhhmm.... question ...... the 1375 is running too hot for the stock valves to handle?? answers anyone ?
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