Seems a bit lonely in this backyard of the internet.
I will try to allow Open ID / Anonymous comments (at least for a while) to see if anyone is willing to conribute with any opinions or maybe even som experts advice.
2011-09-30
2011-09-28
Cranks
Got 2pcs to work with, at the moment.
Guess which one is the better. I thought it was the right one but it's the one to the left.
The right one was much more rusty than the left when I started. After degreasing and brushing off the rust with a brass wire brush I detected wear in one of the crank pin bearings.
Maybe it's the same with the other one. Hope not. Probably will have to change crank pin and rods, preferrably to stronger rods with larger piston pins. Just have to find such rods first...
Crankshaft Service Data
Guess which one is the better. I thought it was the right one but it's the one to the left.
The right one was much more rusty than the left when I started. After degreasing and brushing off the rust with a brass wire brush I detected wear in one of the crank pin bearings.
Maybe it's the same with the other one. Hope not. Probably will have to change crank pin and rods, preferrably to stronger rods with larger piston pins. Just have to find such rods first...
Crankshaft Service Data
2011-09-23
Field trip
Visited the local Motorcycle Museum, MC collection, today. Should have brought a real camera insted of the mobile phone... next time.
Some of the Board Track racers on diplay
Technical masterpiece!
Just a few of the motorcycles on display.
Some of the Board Track racers on diplay
Technical masterpiece!
Just a few of the motorcycles on display.
2011-09-18
Weight issue.
The easiest way to gain speed/acceleration would, of course, be to reduce the weight of the "pilot", but... Now I started to think about reducing weight from the crankshaft, that's a bit different.
The normal easy approach is to throw the rotor and stator in the trash bin and use a battery ignition. But how about using the alternator as a part of a magneto ignition? Can I then reduce the weight from the crank just by latheing away the same mass (as the rotor) from the crank counter weights? Would be the same thing or wouldn't it - or maybe that would be more, have to do some maths? Maybe not the high tech solution (or is it) - but about the same.
I think I have to get a pair of magneto coils and do some experimenting with the alternator in the lathe. Maybe I should have a back-up-plan and get a pit bike ignition instead and test it with dual coils (is there a dual output CDI coil)?
The normal easy approach is to throw the rotor and stator in the trash bin and use a battery ignition. But how about using the alternator as a part of a magneto ignition? Can I then reduce the weight from the crank just by latheing away the same mass (as the rotor) from the crank counter weights? Would be the same thing or wouldn't it - or maybe that would be more, have to do some maths? Maybe not the high tech solution (or is it) - but about the same.
I think I have to get a pair of magneto coils and do some experimenting with the alternator in the lathe. Maybe I should have a back-up-plan and get a pit bike ignition instead and test it with dual coils (is there a dual output CDI coil)?
2011-09-17
Blasting
Today was glass bead blasting day.
Among other things the hubs were blasted. It would be very easy to polish the hubs to mirror finish in the lathe.
But then I would have to polish the brake shields too and that sucks. Done that, once, and don't want to do it again.
Maybe I should aim for "No show but go"...
I also found out what the P in PMS stands for - Permanent !?
Among other things the hubs were blasted. It would be very easy to polish the hubs to mirror finish in the lathe.
But then I would have to polish the brake shields too and that sucks. Done that, once, and don't want to do it again.
Maybe I should aim for "No show but go"...
I also found out what the P in PMS stands for - Permanent !?
2011-09-07
NEW follower
In the last 24 hours the followers have doubled!Does that mean I should double my effort ... ?Maybee I have to start writing about the many noninterestings things that happens in my life?Like, I'we spent the last tree hours on eBay, looking for BIG pistons and suitable sleeves for a CB125...Noo, but it MIGHT encurage me to do more interesting things, to write about. That would be a nice change :)
2011-09-05
What's the sign?
Go home milk yor cows?
I'll have to ask the angry (?) young man :)
At least the sign is new to me...
I'll have to ask the angry (?) young man :)
At least the sign is new to me...
2011-09-03
Rockers vs Mods
Participated this year too in the 5th Rockers vs Mods
My Norton Commando made it all the way! Although I had a minor hickup when it stopped, once, at a red light due to poor charging. Had to wait a couple of minutes before I could get it started again...
I estimated that there were more Rockers than Mods this year too.
Rockers at Vinterviken
My Norton Commando made it all the way! Although I had a minor hickup when it stopped, once, at a red light due to poor charging. Had to wait a couple of minutes before I could get it started again...
I estimated that there were more Rockers than Mods this year too.
Rockers at Vinterviken
2011-09-02
New toys
Started another project, a cutter head for the CB125 valve seats, since my Neway cutters for the CB450 seats are way to large.
I'm a strong believer in DIY, but....
When the cutter heads was almost done I found out that I could buy cutter blades (on eBay) for cutting all three angles at the same time. Change of plans, opened the wallet ... Hopefully they will perform as good as they look.
I'm a strong believer in DIY, but....
When the cutter heads was almost done I found out that I could buy cutter blades (on eBay) for cutting all three angles at the same time. Change of plans, opened the wallet ... Hopefully they will perform as good as they look.
Do You Believe in Hereafter...
The Girl: - Of course I Do!
- Hehe, then you know what I'm here after.
Sounds better on the Compact Cassette I once got in the US.
Anyway, since my one and only follower probably understands English better than Swedish: Hereafter I'll try to write in English.
- Hehe, then you know what I'm here after.
Sounds better on the Compact Cassette I once got in the US.
Anyway, since my one and only follower probably understands English better than Swedish: Hereafter I'll try to write in English.
2011-08-24
Shop Manual
Hittade en halvdåligt skannad, ej modellspecifik K5 (gäller CB125 K0-K3) men innehåller nog relevant information.
Hittade redan i ett tidigt skede en Parts List, men sådana finns ju on-line på flera ställen på nätet.
Hittade redan i ett tidigt skede en Parts List, men sådana finns ju on-line på flera ställen på nätet.
2011-08-20
Obduktion
Började obducera den resevdelsmotor (endast underdel) jag fick med i lådorna.
Preliminär dödsorsak är att en kugge har lossnat från primärdrivningen och sökt sig in i växellådslagret. Hittills har jag inte hittat någon annan förklaring.
Preliminär dödsorsak är att en kugge har lossnat från primärdrivningen och sökt sig in i växellådslagret. Hittills har jag inte hittat någon annan förklaring.
Kadavret
Vet inte riktigt varför jag inte köper en renoverad och river den själv?
Här är den, "delvis" ...
Vid en första okulärbesikning av ramen ser det ut som om fram och bakhjul inte kommer att ligga lodrätt, samtidigt.
Eventuellt blir det till att värma och bända oxå. Är man riktigt noga så får man kapa-bända-svetsa.
Här är den, "delvis" ...
Vid en första okulärbesikning av ramen ser det ut som om fram och bakhjul inte kommer att ligga lodrätt, samtidigt.
Eventuellt blir det till att värma och bända oxå. Är man riktigt noga så får man kapa-bända-svetsa.
2011-08-18
I did it again!
Denna gång var det större lådor. En komplett (!?) CB125K3 i lådor + en delvis komplett motor (skrot kan man väl kalla det). Hoppas att delarna jag behöver, är användbara.
Smög in kadavret i förrådet när frugan var borta, förlitar mig på att det försvinner i mängden sas ;)
Smög in kadavret i förrådet när frugan var borta, förlitar mig på att det försvinner i mängden sas ;)
2011-08-17
2011-07-27
Det blev inget. Norton projekt ...
... på grund av åsikter på ett visst forum + att jag prioriterade annat!?
Hur som helst så hittade jag något annat som fick mitt "ha-begär" att vakna.
En 50-tals Dodge FARGO "Town Panel", bild kommer - kanske :)
Letade på nätet men hittade inte ens en liknande...
Hur som helst så hittade jag något annat som fick mitt "ha-begär" att vakna.
En 50-tals Dodge FARGO "Town Panel", bild kommer - kanske :)
Letade på nätet men hittade inte ens en liknande...
2011-07-15
2011-07-07
Feltänk,
eller snarare inte tänkt alls. Vid provmontering upptäckte jag att den nya plattan var betydligt tunnare än orginal.
Min lösningen var att svarva en 0,9mm spacer av aluminium.
Resultatet
Min lösningen var att svarva en 0,9mm spacer av aluminium.
Resultatet
2011-07-04
Gnista
... saknades. Så i stället för att göra något viktigt började jag tillverka en statorplatta. Dvs. jag har ett nytt Boyer tändsystem som saknar statorplatta och jag tänkte testa att göra en egen variant (som kan ersätta orginal, på kamaxeln).
Den som känner till Boyer vet att det skall vara två spolar om vardera ca 68 ohm. Tänkte prova med en enkelspole istället så jag svarvade en bobbin av aluminium, monterade en järnkärna och lindade en ca 140 ohms spole. Avslutade med samma tunnflytande epoxy som jag brukar använda när jag tillverkar flugfiskespön.
Till sjäva plattan använder jag ett dubbelsidigt kretskortslaminat som har fått lite missfärgningar och inte duger till att göra kretskort av. (den bättre sidan synns i bilden).
Den som känner till Boyer vet att det skall vara två spolar om vardera ca 68 ohm. Tänkte prova med en enkelspole istället så jag svarvade en bobbin av aluminium, monterade en järnkärna och lindade en ca 140 ohms spole. Avslutade med samma tunnflytande epoxy som jag brukar använda när jag tillverkar flugfiskespön.
Till sjäva plattan använder jag ett dubbelsidigt kretskortslaminat som har fått lite missfärgningar och inte duger till att göra kretskort av. (den bättre sidan synns i bilden).
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