Hello Guest User,

Please feel free to have a look around the forum but be aware that as an unregistered guest you can't see all of it and you can't post.

To access these 'Registered Users Only' areas simply register and login.

My Ultimate Zed

Work in Progress

Moderators: chrisu, paul doran, Taffus, KeithZ1R

Message
Author
User avatar
ruffle
Custard Cream
Custard Cream
Posts: 514
Joined: 29th Nov 2009
Location: Peatboghorror
Contact:

Re: My Ultimate Zed

#106 PostAuthor: ruffle » Thu Apr 27, 2017 6:44 am

Nice design work and I like the 3D printer for prototyping; I really must find an excuse to get one :)

User avatar
CAT3
100Club
100Club
Posts: 423
Joined: 20th Jun 2011
Location: South Manchester

Re: My Ultimate Zed

#107 PostAuthor: CAT3 » Mon May 15, 2017 10:40 pm

Just read this thread from start to finish. What a great read, stunning attention to detail & looking forward to seeing the finished bike. A credit to you sir :up

User avatar
Zomerset Zed
100Club
100Club
Posts: 239
Joined: 30th May 2014
Location: Somerset

Re: Final engine build

#108 PostAuthor: Zomerset Zed » Tue May 16, 2017 9:00 pm

Time to build up top end:

I used a variety of techniques to measure squish and compression ratio:

Image

Image

I measure as low as 0.66 mm squish, and a compression ratio of 11.2:1 static. Squish is too low for a road bike really, and compression ratio i would like to see about 10:25 as per Wiseco piston design.

So i calculated i required an additional 0.7mm of clearance between the piston and the head, so i ordered some 1.5mm gasket paper to get the additional height from the original Cometic 0.7mm base gasket.

I then refitted the barrels and head onto the un-ringed pistons and re-did all my measurements with cams timed in properly. CR came out at 10.3:1 and squish at 1.40mm. Result!

Strip down again!

I then re-checked the piston rings for gap and fit and increased the gap on a few and sanded a radius onto both the edges of the ID of all the 2nd rings as it was a bit sharp. After ringing all the pistons and fitting 1 circlip and the gudgeon pin to each piston (1 and 2 on the rhs, 3 and 4 on the lhs) i fitted them to their respective homes:

Image

Image

And the reason for doing this :roll: :?:

When i went to get my ring compressors out, there are only 3 to be found! The hazzards of moving house, grrrrr...

So the theory is:

Fit pistons into barrels individually easing each ring in at a time (there is a generous taper at the base of the Wiseco liners).
Fit my home made base gasket to bottom of barrels.
slide out gudgeon pins on 2 and 3 so the oil ring is just in the liner and the pin is out enough to clear the rod and can rest on the bottom of the liner.
Tip engine so it is resting on its front (so you dont have to fight gravity pulling the barrels down when you dont want them to go down)
Slide barrels on.

Image

Rotate crank so rods 2 and 3 are at TDC.
Slide barrels down until they meet little end bore.
Slide Guineon pins into rods (can use a bar resting on top of the front head studs to support the conrods so they dont flop down and a phillips screw driver to locate the little end).
Fit the circlips in the pistons (can be a little fiddly as they are bastard tight anyway).
Slide pistons up bore by pushing down on barrels and rotating the crank.

Image

Image

Now push pistons 1 and 4 down so they meet the rods and repeat which is easier on the outer 2.

Image

Applied RTV to base gasket in appropriate places, on barrels first, then block and pushed barrels down, head on quickly and torque down.
Next day, head off, head gaskets in and blue Hylomar applied around oil ways on both faces.
New Genuine cam chain tunnel seal and all new rubber blocks on the sprocket shafts.

Image

Head on and torqued down for the last time.

I then re-checked the cam timing and adjusted slightly to get the 107/106 i wanted.

Image

Image

Wanted to get this all down so i have a record of what i have done and may be of interest to some??

Tried to re-use original cam end caps, half-moons or whatever :oops:

Either got pressed in or out on 2 of them, so ordered some TK Max ones off Ebay (seem good quality) and fitted them with no issues.
Slung the carbs on to get a feel for what its going to be like :blah

Image

Replaced comedy Athena tensioner gasket (thin and wrong shape) with home made one:

Image

Gasket:1, Finger: Nil
:mad

Bigkenxx
Regular Poster
Posts: 55
Joined: 28th May 2017
Location: Staffordshire

Re: My Ultimate Zed

#109 PostAuthor: Bigkenxx » Mon May 29, 2017 6:58 pm

Good build good read

User avatar
Zomerset Zed
100Club
100Club
Posts: 239
Joined: 30th May 2014
Location: Somerset

Getting close!!

#110 PostAuthor: Zomerset Zed » Thu Jun 15, 2017 6:41 pm

Got some parts back from Mikey, polished and anodized gloss black:

Image

Image

The forks i have got Mikey to polish at the moment. I have real doubts about the forks as i may have to lengthen them to get more ground clearance at the front. If i think i may have to do this i will have to make some tube extensions to screw in the top of the forks and lengthen the cartridge by the same amount. The end goal is to get the forks anodised black, but i have decided to wait until i have the whole bike built up and at least do some riding on it to decide how much the front end may need to be raised, then get the extensions machined and then send the whole lot off for anodising, so everything matches colour wise. I only want to do this once as the internal PTFE coated bushes will need to come out of the forks for anodisng and this looks like a prick of a job, and im sure the bushes wont be cheap either :shock:

Swingarm spindle end caps:

Image

Oil cooler brackets:

Image

Other jobs:

Image

Cleaned up the fuel tap with brass wire brushes and a few goes in the ultrasonic bath.

I took the plunge and opened up the original clocks with the angle grinder:

Image

The idea is i am trying to fit the Koso LED Tacho and speedo into the original instrument binnacles :blah

Image

I wont go into detail here but its proving to be a fiddly swine of a job :evil:

But i am determined to make it work and look decent.

Built up the warning lights and tested:

Image

May give LED bulbs a try??

Bought a PMC seat and fitted it with a few minor adjustments to the frame and removed the seat prop brackets etc.

Image

After much prevaricating i designed and had machined some pillion footrest brackets in steel so i can weld to the rear tube in the desired position (where it will fit folded up basically)

Image

I got some cheap Yamaha pegs complete for a tenner off ebay. Came up well after a bit of wire brushing etc:

Image

Locating them on the frame for welding:

Image

Image

Welded on to the frame:

Image

Image

User avatar
Zomerset Zed
100Club
100Club
Posts: 239
Joined: 30th May 2014
Location: Somerset

Never too late

#111 PostAuthor: Zomerset Zed » Wed Nov 15, 2017 7:27 pm

Its about time i updated this thread as i do want to complete it over the winter.

Getting everything ready for blast and powdercoat:

I re-made the electrical box side plates so they would fit the frame better towards the rear and you cant see through into the box behind the side panels.

IMG_20170611_131052.jpg


IMG_20170611_131123.jpg


While waiting for the frame to get done i got on with a few other jobs: Adapting the standard clock housings to accept the Koso digital gauges i bought for the bike:

IMG_20170621_192551.jpg


Cutting out the original steel green stuff coated liner was a bitch :!:

IMG_20170624_151001.jpg


Once i had worked out how to get the new gauges into the housings i could weld (tack) the housing halves back together. It needed 2 of us the hold in the correct orientation whilst tacking.

IMG_20170624_155735.jpg


Housings were filled, sanded and painted with gloss black aerosol and clear lacquered. I had just picked up some more parts from the CNC shop including the headlight/front inicator brackets, so i made up a complete front end and mounted the clocks:

IMG_20170702_160106.jpg




Not perfect but it'll do for now until i come up with a better way of doing it :idea
IMG_20170702_160151.jpg
Last edited by Zomerset Zed on Wed Nov 15, 2017 10:50 pm, edited 2 times in total.

User avatar
Pigford
I'm on prescription!!
Posts: 10566
Joined: 2nd Jan 2006
Location: Hampshire Coast UK

Re: My Ultimate Zed

#112 PostAuthor: Pigford » Wed Nov 15, 2017 7:56 pm

Great to hear from you - been too long :up
And on the 7th day... Zeds were created!

Swirl
Custard Cream
Custard Cream
Posts: 743
Joined: 9th Feb 2017
Location: Ellesmere Port Cheshire

Re: My Ultimate Zed

#113 PostAuthor: Swirl » Wed Nov 15, 2017 8:01 pm

Will keep an eye out photos I like photos

User avatar
Zomerset Zed
100Club
100Club
Posts: 239
Joined: 30th May 2014
Location: Somerset

Re: My Ultimate Zed

#114 PostAuthor: Zomerset Zed » Wed Nov 15, 2017 10:55 pm

Great to hear from you - been too long :up


Thanks, had a shitty year with some major bad things happening, so got a bit behind on the thread :zzz

User avatar
Zomerset Zed
100Club
100Club
Posts: 239
Joined: 30th May 2014
Location: Somerset

Re: My Ultimate Zed

#115 PostAuthor: Zomerset Zed » Wed Nov 15, 2017 10:56 pm

Will keep an eye out photos I like photos


Hope you can see them?

Swirl
Custard Cream
Custard Cream
Posts: 743
Joined: 9th Feb 2017
Location: Ellesmere Port Cheshire

Re: My Ultimate Zed

#116 PostAuthor: Swirl » Thu Nov 16, 2017 7:13 am

Zomerset Zed wrote:
Will keep an eye out photos I like photos


Hope you can see them?

Yes mate all the new ones are visable

User avatar
Zomerset Zed
100Club
100Club
Posts: 239
Joined: 30th May 2014
Location: Somerset

Re: My Ultimate Zed

#117 PostAuthor: Zomerset Zed » Thu Nov 16, 2017 9:42 am

If you want to see the old ones, you have to install the google chrome photo-bucket fix. Link is on the discussion board page i think :D

User avatar
Zomerset Zed
100Club
100Club
Posts: 239
Joined: 30th May 2014
Location: Somerset

Re: My Ultimate Zed

#118 PostAuthor: Zomerset Zed » Thu Nov 16, 2017 6:21 pm

Fast forward 6 weeks (not the agreed 4) and i have some powder-coated parts back:

IMG_20170711_161819.jpg


IMG_20170711_162307.jpg


IMG_20170711_162315.jpg


IMG_20170711_162327.jpg


IMG_20170711_163539.jpg

User avatar
Ginger Bear
Hardcore
Hardcore
Posts: 5512
Joined: 16th Dec 2008
Location: In the Dark.
Contact:

Re: My Ultimate Zed

#119 PostAuthor: Ginger Bear » Fri Nov 17, 2017 9:57 am

Powdercoating by Nick @ Griffs?

It may have overrun a little (something that niggles me too) but the quality will be second to none.

Good to see this project getting back on track. We'll save you some space on the club stand for when it's finished. :wink:
Image

# 104

Phil Churchett Award Winner 2011 & 2016 :D
Buzzworkz Best Modified Zed 2016

User avatar
Zomerset Zed
100Club
100Club
Posts: 239
Joined: 30th May 2014
Location: Somerset

Re: My Ultimate Zed

#120 PostAuthor: Zomerset Zed » Sun Nov 19, 2017 5:55 pm

Powdercoating by Nick @ Griffs?

It may have overrun a little (something that niggles me too) but the quality will be second to none.


Hi GB, yes. Although the overall quality was good there were other issues that had me really not happy at the time. But time is always an excellent cure for most things.....

Don't want to go slagging off people on forums, but their "mistakes" have cost me time and money. This is to be expected on any project of an engineering nature and my own mistakes have cost me on this project too!

The bike is actually complete and running, but still sorting through the small issues as all specials have when you first ride it. I am playing catch up on the thread :oops:

Would love to put it on the stand next time, i think people would like the details :wink:


Return to “Projects”

Who is online

Users browsing this forum: No registered users and 31 guests