Author Topic: I think a new set of rings and it will be ok.  (Read 9493 times)

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Offline John Noonan

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Re: I think a new set of rings and it will be ok.
« Reply #15 on: November 25, 2009, 01:37:08 PM »

What did that sound like when she let go?

Boom Boom rattle rattle clank clank silence..followed by lots of cursing..then  :cry:

Been there... :wink:


Offline bbarn

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Re: I think a new set of rings and it will be ok.
« Reply #16 on: November 25, 2009, 01:46:01 PM »
Did it lock up the rear and cause a skid or no major issues other than the obvious expensive mechanical one?

I almost never wake up cranky, I usually just let her sleep in.

Offline Dakzila

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Re: I think a new set of rings and it will be ok.
« Reply #17 on: November 25, 2009, 01:56:30 PM »
 :wink:
More sacrifices to the God of Speed......you gotta pay your dues....

Buzz
"Marred by indecision; vision is blurred, confidence deteriorates and progress stagnates."

"It's not about what you did.....It's about what you do!"

 "Regret is part of the aging process and should never be confused with failure."

Offline Stan Back

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Re: I think a new set of rings and it will be ok.
« Reply #18 on: November 25, 2009, 02:38:01 PM »
You'd think that with just 2 cylinders you'd have less chance of things going wrong.

Stan
Past (Only) Member of the San Berdoo Roadsters -- "California's Most-Exclusive Roadster Club" -- 19 Years of Bonneville and/or El Mirage Street Roadster Records

Offline bbarn

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Re: I think a new set of rings and it will be ok.
« Reply #19 on: November 25, 2009, 02:52:59 PM »
You'd think that with just 2 cylinders you'd have less chance of things going wrong.

Stan

With two cylinders, you gotta push them harder to get as much as you can out of them = more likely to have catastrophic problems!
I almost never wake up cranky, I usually just let her sleep in.

Offline Dean Los Angeles

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Re: I think a new set of rings and it will be ok.
« Reply #20 on: November 25, 2009, 05:16:44 PM »
Quote
Did it lock up the rear

There's a question from somebody that has never grenaded a motor. Did it lock up the rear.

What did it sound like? John has it right. I'll bet Willie could hear angels singing!
Well, it used to be Los Angeles . . . 50 miles north of Fresno now.
Just remember . . . It isn't life or death.
It's bigger than life or death! It's RACING.

Offline bbarn

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Re: I think a new set of rings and it will be ok.
« Reply #21 on: November 25, 2009, 06:28:35 PM »
My motorcycle experience is all about a 2 stroke 420 on dirt. Did a little street bike riding a few years ago (75 XLCH) but got rid of it when the kids started piling up around here. Never had the opportunity to grenade one, I'm just assuming it made quite the clatter, brought all rotating parts to a sudden and complete stop including the pilots heart for a few beats!
I almost never wake up cranky, I usually just let her sleep in.

Offline theazoldcrow

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Re: I think a new set of rings and it will be ok.
« Reply #22 on: November 25, 2009, 08:28:17 PM »
 :-o  It sounded like a whole s--- load of dollar bills going South.    Happy Thanksgiving everybody!      Crow.
The Earth, is an intergalactic insane asylum.!

Offline wobblywalrus

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Re: I think a new set of rings and it will be ok.
« Reply #23 on: November 25, 2009, 08:56:30 PM »
Recently I looked at what it would take to make my Triumph twin competitive with the new BMW 1000 four.  The big pistons in a 375 cc Truimph twin jug need to be moved up and down a lot longer distance than the tiny slug in an ittsy bittsy BMW 250 cc cylinder.  The Triumph piston needs to go faster to do this and it must accelerate and decelerate much quicker.

Force = mass x acceleration.  In practice, the tensile forces in rods and pistons are much greater in engines with comparatively long strokes and big pistons.  Our twins simply cannot run with the four cylinder bikes.  To do so, we would need to discover some extra strong metal, keep it secret, and build our rods and pistons out of it.

There are couple of things we can do, such as work on streamlining, keep the revs down and use lots of boost or nitro, or replace critical parts often so they do not fatigue and break.  I am doing the streamlining route.

I'm sorry to see your motor.  Hopefully you have a spare.  Werner made good use of those leathers he bought from you.  He set a record.

. Acceleration Tension forces .  ttance than a pisttinert

Offline isiahstites

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Re: I think a new set of rings and it will be ok.
« Reply #24 on: November 25, 2009, 09:03:24 PM »
Willie I have some Buell pistons that look like that, an oval rod end, and a groove in the crank pin. Not cheap by any means..........

Offline willieworld

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Re: I think a new set of rings and it will be ok.
« Reply #25 on: November 28, 2009, 02:10:45 AM »
ok thought we would show you some more pics of the disassembly process....
the pics speak for theirselves.

willie buchta
willie-dpombatmir-buchta

Offline willieworld

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Re: I think a new set of rings and it will be ok.
« Reply #26 on: November 28, 2009, 02:17:14 AM »
it wasn't that noisy for the amount of damage that was done  i actually thought i could get by with just a couple of pistons till i pulled the motor apart   i replaced the flywheel and rod assembly   main bearings on both sides    two gears in the oil pump   two pistons rings and pins and both heads
the amazing part is that this was the fourth time i blew this motor up and it still hasn't hurt the cases
im an old harley rider and i always ride with my hand on the clutch lever and as soon as i heard the noise i pulled the clutch in and shut the motor off
heres some more pics
willie buchta
willie-dpombatmir-buchta

Offline willieworld

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Re: I think a new set of rings and it will be ok.
« Reply #27 on: November 28, 2009, 02:18:28 AM »
more pics
willie buchta
willie-dpombatmir-buchta

Offline willieworld

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Re: I think a new set of rings and it will be ok.
« Reply #28 on: November 28, 2009, 02:19:27 AM »
some more pics of disassembly
willie buchta
willie-dpombatmir-buchta

Offline willieworld

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Re: I think a new set of rings and it will be ok.
« Reply #29 on: November 28, 2009, 02:25:11 AM »
putting the motor back together again
good as new

willie buchta
willie-dpombatmir-buchta