ITOM

Sto ripristino di un ITOM e avere una miscela di tre e quattro parti del motore di velocità, un telaio e un paio di forcelle Astor senza cespugli !. Sto avendo a fare rondelle di attrito per il preselettore a quattro velocità, toccare un dado per l'albero primario del cambio e rettifica cuscinetti a rulli più brevi per il kickstart come alcuni un mancante.



Ho mille piccoli lavori da fare con questa moto, ma anche bisogno di un consiglio da non so quale modello questa testata è da quanto privo di numeri o segni.

Saluti, Colin

Edited by IMSA - 2/4/2016, 17:48

Ho appena messo questo insieme, il mio consiglio, non prendere questa parte se non si dispone di come è un maiale da montare.


This kickstart unit was missing bearings and springs but is now complete, I found it VERY hard to assemble so my tip is "don't undo this unless you have to.

Edited by IMSA - 6/4/2016, 23:25

Thanks Malanca70, I will do now.

I was using Google Translation.

I shortened some springs for the preselector yesterday and closed the last coil up with a small blowtorch to make it flat which I'd not done before !




Edited by IMSA - 11/4/2016, 12:28

Hi Claudio,

I had one ITOM spring and could only buy longer springs so I cut these to length and closed the last coil to make it flat.



I am going to have a 3 speed gear selector fork cut with a laser to put on the 4 speed preselector shaft to have a foot gear change.


Regards, Colin

Edited by IMSA - 11/4/2016, 23:29

Hi Claudio,

Correct, there are none but I will make one.

I also modified the gear change on my road bike to reduce wear on the preselector.

I did this when I was young . It looks bad, but it works ! Regards, Colin



I have finally completed two preselectors with additional pivots for a rose joint linkage and also modified the heads of some stainless Philips screws to fit the covers.



Edited by IMSA - 20/5/2016, 09:33

Hi Claudio,

The gear change action on my road bike was inconsistent and when I
took the preselector unit apart I found wear on the friction washer
pegs and slot, so when I changed gear the wear was letting the
control shaft to rotate backwards a little which made the pushing
ratchet-pawl sometimes miss the next tooth on the control shaft.



To fix this I have made some new washers, three with a square internal
peg and three with a point which fits inside the casing as shown,
this is a better design as the area of contact
is spread over 2cm of each edge.

Colin

Edited by IMSA - 18/4/2016, 04:00

I'm restoring the mudguards now. RUST !!!