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TOPIC: "Torched the center" between 3&4

"Torched the center" between 3&4 09 Apr 2018 19:09 #781583

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A lot of current blends of Castrol 10-40 oil are not made for KZ ( wet clutch ) motors. So maybe take a look at which blend you were using .
OH ,
And as bad as your burned down cylinder head may look to you.

You are still a amateur in my book LMAO

A old head I keep around to remind me of the good old days :whistle:
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Mr Turbo Race Kit, MTC 1075 Turbo pistons by PitStopPerformance , 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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"Torched the center" between 3&4 09 Apr 2018 21:30 #781593

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WOW, WTF HAPPENED THERE? :ohmy:
Steve
Z1b1000 1975 Z1b
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kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
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"Torched the center" between 3&4 10 Apr 2018 04:16 #781602

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SWest wrote: WOW, WTF HAPPENED THERE? :ohmy:
Steve


To much Boost and way to much Nitrous

This head came off my teams funny bike back in the day. I had posted it years ago on KZR

when a novice member wanted to go over board with a project and I shared with the group that to much is good , but very expensive

Dave
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Mr Turbo Race Kit, MTC 1075 Turbo pistons by PitStopPerformance , 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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"Torched the center" between 3&4 10 Apr 2018 09:15 #781615

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Dave,
WOW, bet that was a surprise for the rider when that happened! Holy cow!

Steve,
Stock cylinder studs. For this reason I never torqued them past spec even though I always felt they could go a bit tighter with a 2 ft torque wrench. Did not want to break one.

VTEC,
I got a fair amount of trouble free miles after the PSP work; I had read your woes in the past and that is really unfortunate however in this case I stand by Joe's work and I am taking blame for this. Everything he did was clean and I think my work was done either before or after recovering from his health ailments.

So far I have emailed Jim @ Redline and Larry Cavanaugh in search of a head. There seems to be a shortage. I have seen a few on ebay over the last month but they have mostly had cracks in the same spot - plug holes to valves. I can't rationalize spending big bucks on a head with a crack.

I am in agreement that regardless of where the head and block come from, it is time for a complete overhaul. I want to use my same bottom end to keep my engine number and at least I know the last 10 years worth of history on it.
76' KZ900
00' KLR650
82' XV920 Virago
74' Ironhead Sportster
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"Torched the center" between 3&4 10 Apr 2018 09:34 #781617

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Dave,
WOW, bet that was a surprise for the rider when that happened! Holy cow!

Flames shot out at least 10 feet while our rider was going thru the ET lights. ( He won !! )

We were standing at the starting line and it was clearly visible

Good luck on your quest for parts and it sounds like you know who are your options to do your machining and labor

We are here to help

Dave....
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"Torched the center" between 3&4 10 Apr 2018 09:57 #781618

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They're made to stretch but I don't want to break one either. I bought HD ones from Z1E. The small cracks are normal as long as they don't go all the way to the top.
Steve
Z1b1000 1975 Z1b
Opinions expressed by me do not reflect those of the the staff or members
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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"Torched the center" between 3&4 10 Apr 2018 10:13 #781619

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Street Fighter, I would bet the rider was none to happy with that going on between his legs. :ohmy:
Blue 1975 Z1B
Red 2009 Concours 14

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"Torched the center" between 3&4 10 Apr 2018 10:19 #781620

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YEAH BUDDY :woohoo:
Z1b1000 1975 Z1b
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kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
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"Torched the center" between 3&4 10 Apr 2018 10:20 #781621

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Z1Driver wrote: Street Fighter, I would bet the rider was none to happy with that going on between his legs. :ohmy:[/quote
Kevin our pilot and bike owner took it better than expected.Winning the event sure helped LOL
Kevins Dad was a rich man and into fast cars and such. He sponsored our team so we had at least one spare motor as a backup and parts
for a third on hand normally.
Racing's Cheap, Winnings Expensive
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"Torched the center" between 3&4 10 Apr 2018 11:33 #781623

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jenkrider wrote: Kevski, thanks for the completely worthless and demeaning feedback. I wish you a litany of mechanical problems in the future.


Jenk fortunately for me that'll never happen:)

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"Torched the center" between 3&4 10 Apr 2018 12:01 #781627

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kevski wrote:

jenkrider wrote: Kevski, thanks for the completely worthless and demeaning feedback. I wish you a litany of mechanical problems in the future.


Jenk fortunately for me that'll never happen:)


Uncalled for originally , Of No value now.

Move on

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"Torched the center" between 3&4 10 Apr 2018 13:48 #781631

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DITTO
Steve
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"Torched the center" between 3&4 11 Apr 2018 00:47 #781647

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I had moved on, but when someone woefully neglects to do the simplest of maintenance tasks and then tells the whole world,they need a kick in the rear end, maybe there will be less complacency in this gentleman's future now.

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"Torched the center" between 3&4 16 Apr 2018 09:16 #781898

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4/16 Update

Someone at APE has looked at pictures and indicated the head can likely be decked and checked. I may drive it up to them if I am able to in the next few weeks time permitting.
Also have obtained a decent looking kz1000 head for rebuild off ebay as plan B. Or may be plan A. Not sure yet. Will keep everyone posted as progress goes on.
76' KZ900
00' KLR650
82' XV920 Virago
74' Ironhead Sportster

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"Torched the center" between 3&4 16 Apr 2018 10:24 #781900

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When they say decked that must include welding to fill in the lost casting and make the deck(s) usable. Not to mention the head crack.

If costs were similar to getting a good used head and block, I would go with the unscarred replacements.
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"Torched the center" between 3&4 16 Apr 2018 12:59 #781908

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I agree; Am somewhat skeptical but we'll see. Either way I have a kz1000 head on the way with no visible damage or cracks based on pictures. Claimed to be in good condition with no stripped holes. We'll see.
76' KZ900
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82' XV920 Virago
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"Torched the center" between 3&4 30 May 2018 10:24 #784358

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Figured I'd give an update for those interested or who offered advice:

I have been talking with Larry Cavanaugh and I think what I am going to do is send him my engine and ebay head with all relevant parts for a complete dismantling and rebuild including mild head work & refurbishing. There is a good chance I will be able to stay at 1015cc which will help with the cost a bit.

I spent some time over Memorial day organizing the garage and making it easier to work in which I'm sure as many of you know is half the battle of actually making any progress...gaining space over kid toys, etc.

Will be pulling the rest of the engine out soon and crating up for shipment by the end of June is the current plan.
76' KZ900
00' KLR650
82' XV920 Virago
74' Ironhead Sportster

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"Torched the center" between 3&4 30 May 2018 10:58 #784359

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Getting in late; this is interesting. Why not buy a good engine and freshen it up? Valves, hone w/rings and back cut gears and new sh ift forks, etc?
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"Torched the center" between 3&4 30 May 2018 19:39 #784380

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Did you get a block also? The damage there was just as bad as the head, no?
KZ1000-K2
ZRX1100
XR400R

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"Torched the center" between 3&4 31 May 2018 14:15 #784425

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WG,
That is kind of the plan with the difference being my bottom end is good and a known quantity, and also the engine # matches my CA reg. (pain to change it). Plan is for Larry to go through the bottom end while he is in there and possibly back cut trans, check crank, etc.

VTEC, yes the block was damaged worse IMO...LC has one at his shop.
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