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why i have a dead motor (pics)

Started by nastynate6695, May 31, 2008, 07:29:59 PM

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yamahonkawazuki

#20
June 01, 2008, 07:36:48 PM
hey will you sell me that fubar'ed rod? ( need something as part of a "sculpture"
Jan 14 2010 0310 I miss you mom
Vielen dank Patrick. Vielen dank
".
A proud Mormon
"if you come in with the bottom of your cast black,
neither one of us will be happy"- Alan Silverman MD

GeeP

#21
June 01, 2008, 10:44:35 PM
Oh, that's messy! 

See the "beaching" of the Aluminum grain in the piston?  That shows where the crack began to propagate from.  Probably an oxide inclusion or something.  I love how the wrist pin keeper is still intact in half the groove after all that violence.   :o
Every zero you add to the tolerance adds a zero to the price.

If the product "fails" will the product liability insurance pay for the "failure" until it turns 18?

Red '96
Black MK2 SV

ben2go

#22
June 01, 2008, 10:51:47 PM
Quote from: GeeP on June 01, 2008, 10:44:35 PM
Oh, that's messy! 

See the "beaching" of the Aluminum grain in the piston?  That shows where the crack began to propagate from.  Probably an oxide inclusion or something.  I love how the wrist pin keeper is still intact in half the groove after all that violence.   :o

Makes one wonder if the retaining clip isn't over engineered and stronger that the piston.  :laugh: :laugh: :laugh:
PICS are GONE never TO return.

GeeP

#23
June 01, 2008, 11:04:02 PM
I've never been a fan of those little clips.  On two different occasions I've rebuilt engines because one of those little clips failed and the wrist pin chewed up the cylinder wall.  Well, one engine did have a bent crankshaft, which could explain why the clip failed, but still...

I think aluminum slipper plugs fitted on either end of the wrist pin are a much brighter idea overall.
Every zero you add to the tolerance adds a zero to the price.

If the product "fails" will the product liability insurance pay for the "failure" until it turns 18?

Red '96
Black MK2 SV

nastynate6695

#24
June 02, 2008, 07:44:46 AM
sorry yama   ohgood has first dibs if i do get rid of it. but right now ive got it hanging up as a reminder  that when everything is going right, something is bound to go wrong..

ben2go

#25
June 02, 2008, 07:48:07 AM
Quote from: GeeP on June 01, 2008, 11:04:02 PM
I've never been a fan of those little clips.  On two different occasions I've rebuilt engines because one of those little clips failed and the wrist pin chewed up the cylinder wall.  Well, one engine did have a bent crankshaft, which could explain why the clip failed, but still...

I think aluminum slipper plugs fitted on either end of the wrist pin are a much brighter idea overall.

I never used the aluminum plugs but I've used teflon plugs.
PICS are GONE never TO return.

The Buddha

#26
June 02, 2008, 12:12:14 PM
Doesn't the pin take in oil and that in turn helps it cool. Now Yes I see how the pin can "walk" and tear up your cyl wall, but the plugs themselves are also likely to do damage of their own if they come loose.
Cool.
Buddha.
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