Land Speed Racing

On-going, finished, abandoned builds & questions galore..

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HondaJohn
I luv the smell of Diesel...
Posts: 136
Joined: Fri Jul 16, 2010 2:21 pm
Location: Upstate New York

Re: Land Speed Racing

Post by HondaJohn » Sun Oct 16, 2016 3:04 am

So.....this happened! The KZ400 is in print! Cafe Racer Magazine October/November issue :D
CAFE RACER MAGAZINE ARTICLE.jpg

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coachgeo
I luv the smell of Diesel...
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Re: Land Speed Racing

Post by coachgeo » Sat Oct 29, 2016 5:33 pm

Sweet..... it is much sweeter when someone not trying nor wanting fame at all..... gets a little of it. 8)

HondaJohn
I luv the smell of Diesel...
Posts: 136
Joined: Fri Jul 16, 2010 2:21 pm
Location: Upstate New York

Re: Land Speed Racing

Post by HondaJohn » Sun Apr 30, 2017 1:59 pm

Many of you have asked me about the reliability of my Yanmar clone after all of the modifications that I made. I can now answer that. After 7 years of development, as well as:

-4 certified land speed records
-2500 miles of riding.
-Disabled speed governor
-Supercharged to 5psi
-Upgraded valve springs

...the crankcase split in half directly below the cylinder, nearly blowing the top end clear off...

RIP to the first engine, and time to start looking for a new Yanmar L70 clone. Onward and upward!
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HondaJohn
I luv the smell of Diesel...
Posts: 136
Joined: Fri Jul 16, 2010 2:21 pm
Location: Upstate New York

Re: Land Speed Racing

Post by HondaJohn » Fri Jun 16, 2017 12:16 am

After careful examination, I am confident that the guts of the engine are fine, and the damage was limited to the crankcase. So, rather than simply swap engines, I've decided to purchase a replacement crankcase and transplant as much as possible out of the blown motor :shock:

(yes I'm aware this is the more difficult option, but I'm stubborn :D )

I registered an account with AliExpress, and hopefully I will be in possession of a fresh crankcase within the month
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HondaJohn
I luv the smell of Diesel...
Posts: 136
Joined: Fri Jul 16, 2010 2:21 pm
Location: Upstate New York

Re: Land Speed Racing

Post by HondaJohn » Tue Jun 27, 2017 4:52 pm

IMG_20170626_222107971_HDR.jpg

It has arrived 8)

pietenpol2002
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Re: Land Speed Racing

Post by pietenpol2002 » Tue Jun 27, 2017 11:09 pm

Wow! That's amazing to have it from China in 2 weeks. Good luck John. And keep us posted on the progress.
Ron
Goshen, IN USA

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coachgeo
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Re: Land Speed Racing

Post by coachgeo » Wed Jul 26, 2017 4:36 am

John have you considered the need for storing some air from blower like is recommended for turbo charging to see if this helps? 2014 study said 5x the engine capacity..... another person in here did ok with 3x. See last couple post in below thread to info on reasons.

http://www.suckindiesel.com/thingy/view ... f=32&t=962

HondaJohn
I luv the smell of Diesel...
Posts: 136
Joined: Fri Jul 16, 2010 2:21 pm
Location: Upstate New York

Re: Land Speed Racing

Post by HondaJohn » Thu Feb 22, 2018 10:46 am

I finally worked through my backlog of other projects, and the KZ400 diesel is now back on the bench for a rebuild. The first step was to disassemble the drivetrain, clean the frame, and improve some of the mounting hardware and wiring.
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HondaJohn
I luv the smell of Diesel...
Posts: 136
Joined: Fri Jul 16, 2010 2:21 pm
Location: Upstate New York

Re: Land Speed Racing

Post by HondaJohn » Tue Feb 27, 2018 12:54 pm

IMG_20180226_211454503_HDR.jpg
I finished stripping the engine, and was able to examine the inner assembly for the first time. Overall, the components are in excellent condition, the only major issues being excessive carbon buildup in the combustion chamber, and wear on the output-side plain bearing.

I also inspected the camshaft, and found no evidence that the stronger valve springs had caused any damage to the lobes.

HondaJohn
I luv the smell of Diesel...
Posts: 136
Joined: Fri Jul 16, 2010 2:21 pm
Location: Upstate New York

Re: Land Speed Racing

Post by HondaJohn » Tue Apr 24, 2018 11:11 am

Progress! I've refurbished the original engine internals, deburred the new crankcase, and installed everything with fresh bearings and seals.
IMG_20180423_194134564_HDR.jpg

HondaJohn
I luv the smell of Diesel...
Posts: 136
Joined: Fri Jul 16, 2010 2:21 pm
Location: Upstate New York

Re: Land Speed Racing

Post by HondaJohn » Tue May 08, 2018 11:16 am

Engine reassembled and tuned!
IMG_20180507_202132638.jpg

HondaJohn
I luv the smell of Diesel...
Posts: 136
Joined: Fri Jul 16, 2010 2:21 pm
Location: Upstate New York

Re: Land Speed Racing

Post by HondaJohn » Wed May 09, 2018 12:34 pm

I brewed up some caffeine and locked myself in the garage for a marathon reassembly session last night :D
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HondaJohn
I luv the smell of Diesel...
Posts: 136
Joined: Fri Jul 16, 2010 2:21 pm
Location: Upstate New York

Re: Land Speed Racing

Post by HondaJohn » Mon May 14, 2018 9:31 pm

Finished reassembly and received a fresh NYS inspection. Finally ready to ride again!
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