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Z1000ST Restauration

Posted: Sun Oct 29, 2017 3:11 pm
Author: Philippe
Hi Guys

I started the restauration of a '79 ( E1) Z1000 ST.
I bought the bike in 2012 and used it as a donor bike. Throughout the years all that left was a frame and the bottom end of the engine.
In the spring of this year I had the opportunity to buy 10 boxes of ST parts and decided to rebuilt/restore the Z1000 ST. Not just a rebuild, no I decided to make it a bit special. :idea
I decided to mount the windscreen and the exhaust of a Z1-R on it with an adapted paint scheme. The colors will be black and dark grey metallic with silver striping instead of the golden striping that all the ST models have.
I invite you all to join me on this restauration.
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Here's a picture of the pile of parts, it's more than one basket as you can see.

As usual I start with the engine, it's taken apart completely, the cases are stripped of their old paint and resprayed with a high temperature paint. I use the paint set of Restom, a French brand which I've been using since years with good results.
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the painted cranckcases


When I start the engine rebuilt I put the upper crackcase upside down.
The first step is to install the cranckshaft with a new camchain
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the new camchain with 124 links

Make sure that all the set pins (9), the two knock pins, the two set rings and a new O ring are in the upper cranckcase!
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the upper cranckcase with all the pins,rings and O ring

It's a bit tricky to install the heavy cranckshaft, make sure that the holes in the bearings are aligned with the set pins! I turn the bearings one by one to align them and in the end the cranckshaft slides into place.
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the crackshaft is in place

Now it's time to install the main bearing cap, there's an arrow on it pointing to the front .
Fit the four bolts and tighten them to the right torque ( 18.0 ft-lbs) . Mind the right order of the bolts, start right under and work clockwise!
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the main bearing cap installed

Then it's time to place the drive shaft
Again, take care to put the set pin in the hole of the bearing and the set ring in the groove of the other bearing.
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the drive shaft installed

Now it's time for the output shaft.
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the output shaft installed

Finally the kickstart shaft
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the kickstart shaft installed


Next time the lower cranckcase.
I'll be back soon.
Philippe

Re: Z1000ST Restauration

Posted: Sun Oct 29, 2017 3:35 pm
Author: PAULJAC47
These are a underated but very good bike...good work..

Re: Z1000ST Restauration

Posted: Sun Oct 29, 2017 3:40 pm
Author: Philippe
Hello I'm back

The lower cranckcase must be prepared now.
I start by putting the shift drum half way in, then I install the 4th/5th gear shift fork and secure it by it's bolt and lockwasher. The bolt goes into the middle groove of the shift drum.
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the shift drum half way in

Then I put the shift drum in place and turn in the shift drum guide bolt with it's lockwasher.
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the shift drum installed

Now it's time to put the shift rod with it's two shift forks in place, the two forks are the same.
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the shift rod and forks installed

Finally it's time to put the cranckcase halfs together.
Apply a thin coat of liquid gasket on the upper cranckcase , put the lower one upon it making sure that all the shift forks are in place. To achieve that make sure that the shift drum is in the "Neutral" position.
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a coat of liquid gasket

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the "Neutral" position of the shift drum,

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the three shift forks are in position

Then it's time to bolt the halves together, starting with the crackshaft bolts and later the other, smaller bolts.
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the big cranckshaft bolts

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the smaller bolts

Now I can install the oil pump, make sure there's a new O ring and that the two knock pins are in place before installing it.
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the oil pump installed

Finally I can close the cranckcase. A new O ring and a new gasket are needed.
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the new O ring and gasket

That's all for today, after all what can one do on a sunday??? :D
More to come soon.
Greetings from Belgium
Philippe

Re: Z1000ST Restauration

Posted: Sun Oct 29, 2017 5:06 pm
Author: rickm
Great thread, thanks Philippe :up

Re: Z1000ST Restauration

Posted: Mon Oct 30, 2017 10:28 am
Author: Ultim8pc
Nice project which I am watching with interest as I have an ST which has been in boxes since '96 and I will get around to rebuilding at some point.

Re: Z1000ST Restauration

Posted: Mon Oct 30, 2017 11:47 am
Author: Philippe
Hi guys

@ rickm: thanks
@ PAULJAC47 : I agree, they are great to ride !
@ Ultim8pc: go for it, buy a shop manual and a parts list,take the parts out of their boxes, get it back together and ENJOY !!! :D

Greetings from Belgium
Philippe

Re: Z1000ST Restauration

Posted: Mon Oct 30, 2017 11:59 am
Author: Ultim8pc
Philippe wrote:Hi guys
@ Ultim8pc: go for it, buy a shop manual and a parts list,take the parts out of their boxes, get it back together and ENJOY !!! :D

Indeed! I do have an original service manual and the bike has no parts missing. However, I have a z900a4 and a z1000a1 project to get out of the way first!

Re: Z1000ST Restauration

Posted: Mon Oct 30, 2017 2:37 pm
Author: Philippe
Hi
I understand . So many projects, so little time... :P
good luck with the Z 900A4 and the Z1000A1.
GrtZ
Philippe

Re: Z1000ST Restauration

Posted: Sat Nov 04, 2017 3:57 pm
Author: Philippe
Hi Guys

I"m back with some news.
The previous time I ended with showing you the new O ring and the new gasket for the oil pan.
The oil pan is installed now and protecting the oil pump.
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the oil pan installed

I don't put the oil filter in untill the engine is installed in the frame, it gives me just those few centimeters more to make the installation easier.
I allso opened up the clutch to separate the plates, they have a tendency to stick to each other thus preventing the clutch to disengage. It happens often when an engine didn't ran for several years.
I put new oil on their surfaces and mount them again.
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the clutch plates

Then it was time to mount the shift shaft. After mounting a lot of bolts, springs and washers the work was done and the front bevel gear case could be mounted on the engine.
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the shift shaft is in place

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the front bevel gear case installed

Then I decided to mount the oil pressure switch, it's easier to do this before the cilinder block is mounted.
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the oil pressure switch

For the moment I'm waiting for new piston rings to arrive.
Since work on the engine couldn't proceed I started on the frame.
You'll be amazed of the amount of dust and grease you can find on a 38 years old frame :eek
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the frame as I found it

After degreasing and cleaning I started to remove the old paint.
I use simple tools, it takes a few days but the result is stunning.
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after four hours work

On friday the frame was clean, it was degreased again with aceton and spray painted.
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the fresly painted frame

To paint the frame I use two ropes by whitch it hangs on the ceiling.
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now the front is lowered

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and now the back is lowered

The ropes run through 4 hooks so I'm able to lower the frame in the front and in the back.
It makes the work easier to reach all the hard to reach places.
When you spray paint a frame yourself take a very good look before you clean your spraygun, you might have missed a spot! :oops:
That's all for now.
I'll be back soon
Greetings from Belgium
Philippe

Re: Z1000ST Restauration

Posted: Sun Nov 05, 2017 8:50 am
Author: Pigford
Great stuff Phillippe - good of you to take the time to document the rebuild :up

Re: Z1000ST Restauration

Posted: Sun Nov 05, 2017 10:04 am
Author: Garry.L
Interesting that you paint the frame Philippe (as Original), most these days just go with the default Powdercoat.

Re: Z1000ST Restauration

Posted: Sun Nov 05, 2017 3:39 pm
Author: Philippe
Hi Guys

@ Pigford: I hope, by taking pictures, to give others some ideas when they're restoring a Zed.
@ Gary : I don't like powder coating, it blocks the screwholes, gets on the frame mounted bolts and it's often too thick, :evil: but that's just my opinion, other people do like it...
After all the world would be a boring place if we all had the same opinion...
Greetings from Belgium
Philippe

Re: Z1000ST Restauration

Posted: Fri Nov 10, 2017 5:59 pm
Author: Philippe
Hallo I'm back

last week I did some work on the small parts of the bike that have to recieve a satin black paint job
It's time consuming but the preparation of the parts is critical for the outcome.
All the parts are stripped to the bare metal, degreased with aceton and provided with a hook to hang them for the fresh paint to cure.
Of some parts, like the calipers, some areas are protected in order to avoid paint getting into them.
DSCN3060.JPG
the stripped parts waiting for a coat of fresh paint

As you can see I use a drying device, it gives me the possibility to store a lot of parts on a small place.
No I didn't took it from my wife... :twisted:
I'm using a two component epoxy paint but it has only a shining rate of 10 %. The gloss depends allso of the amount of hardener I use. The more hardener, the glossier it becomes. I usually take 30% hardener.
DSCN3061.JPG
the freshly painted parts

The result of 1,5 hour of painting.
Tomorrow the paint will be dry and hard because I keep the light on in order to get the chemical reaction going on.
Yes paint dries faster when there's UV light shining on it :whoa
More to come soon!
Greetings from Belgium
Philippe

Re: Z1000ST Restauration

Posted: Fri Nov 10, 2017 6:11 pm
Author: PAULJAC47
Good work Phil,whats the z scene like in Belgium,matter of interest!

Re: Z1000ST Restauration

Posted: Sat Nov 11, 2017 3:14 pm
Author: Philippe
Hi Pauljac47

in Belgium there is a Z-club in the province of Limburg (North-East of Belgium). They have a website and organise a meeting once a year (end of August-beginning of September). I'm not a member of the club and I never went to the meeting.
There's, to my knowledge, no Z-forum in Belgium. I know a lot of guys who own one or more old Z bikes and I meet them sometimes.
Once a year there's a meeting of owners of classic japanese bikes. The organiser of that meeting is Jean who lives in Ittre ( near Brussels). The bikes of the four great Japanese manufactorys are very well represented there.
There's not really a Z-scene in Belgium....
I find the majority of my information concerning the old Z-bikes on the German forum "Kawasaki-z-classiker" . A real gold mine of knowledge concerning the Z bikes. I publish some of my restorations on that forum but my knowledge of the German language is poor... :blush
I find a lot of information concerning the Z-bikes in books, mostly written in English( my knowledge of the English language is a little bit better :oops:).
I hope I answered your question and that you're satisfied with the answer.
Greetings from Belgium
Philippe