Head Crack

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Re: Head Crack

26 Nov 2012 19:13 - 26 Nov 2012 19:13
#560143
Wow....the San-Andreas Fault of cyclinder heads.... :blink:

I thought I heard spark plug holes were real bad place to crack, but not sure....we shall find out I guess.... ;)
Last edit: 26 Nov 2012 19:13 by 4TheKZ1000.

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  • Bozo
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Re: Head Crack

26 Nov 2012 20:13
#560148
I've had and seen lots of heads with these cracks, as long as the seat is in good condition, this is not a problem the crack normally doesn't go all the way up. I would worry about that plug hole being repaired more then that crack.
First Permanent ride the Z1R since Dec1977 (220,000km) as of June 2015
Second permanent bike 1989 FJ1200 dyno'd 140RWH, great bike.
Third ride is now the Frankenstein 1981 GPZ1100B1, 1983 fully recon motor fitted LOVE THIS BIKE
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Re: Head Crack

26 Nov 2012 21:11
#560154

Couldnt resist :laugh:

Jay is right, NOS and Boost MAY enlarge the crack just a wee bit B) B) B)

Original owner 78 1000 LTD
Mr Turbo Race Kit, MTC 1075 Turbo pistons by PitStop Performance , Falicon Ultra Lite Super Crank, APE everything. Les Holt @ PDM's Billet Goodies . Frame by Chuck Kurzawa @ Logghe Chassis . Deep sump 5qt oil pan. RIP Bill Hahn

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Re: Head Crack

26 Nov 2012 21:33
#560156
I always get a chuckle out of that pic. Seen one like it of a nitrous motor when they added propylene oxide, they don't like each other! :laugh: :laugh: :laugh:

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Re: Head Crack

26 Nov 2012 21:41
#560157
Snap, crackle, and pop! :laugh:
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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  • LarryC
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Re: Head Crack

27 Nov 2012 08:44 - 27 Nov 2012 08:45
#560211
guitargeek wrote:
APE Jay wrote: Most of the KZ heads that come thru the shop are like that. Unless you are turboing it of running big nitrous load, you won't have a problem with it.

I was sure glad to read this last night! I had a bad moment when I found these:

[IMG


[IMG


[IMG

650 head? Doesn't look like a KZ1000 chamber or exhaust port.
Larry C.
Last edit: 27 Nov 2012 08:45 by LarryC.

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Re: Head Crack

27 Nov 2012 10:11
#560221
LarryC wrote: 650 head? Doesn't look like a KZ1000 chamber or exhaust port.
J model, '87 cop bike.
1980 KZ750-H1 (slightly altered)
1987 KZ1000-P6 "Ponch"
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  • 531blackbanshee
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Re: Head Crack

27 Nov 2012 11:04
#560228
:ohmy:
whoa,who left the door open :pinch: ,guitargeek done snuck in :woohoo: !!!!

was wonderin where you had been off to just the other day.

leon
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Re: Head Crack

27 Nov 2012 13:28
#560234
Street Fighter LTD wrote:

Jb weld will fix that right up.

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  • 4TheKZ1000
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Re: Head Crack

27 Nov 2012 14:44
#560238
Use some Kentucky Chrome.....AKA.....Duct Tape..... :laugh:

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Re: Head Crack

27 Nov 2012 14:49
#560240
Street Fighter LTD wrote:
Couldnt resist :laugh:

Jay is right, NOS and Boost MAY enlarge the crack just a wee bit B) B) B)

The late Elmer Trett did that to 11 cylinder heads in a row and that was why we decided to do the billet head.

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Re: Head Crack

28 Nov 2012 21:52
#560388
Hey guitargeek,

That is exactly like the crack in my 900 head.

Ross
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