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Sil layshaft or not?
Posted: Tue Jun 10, 2014 9:02 pm
by ArKaTxU
Is this from SIL or not?
I have problems, first to put into bearing and then to correct gearbox shim clearance.
Are SIL ones good for standard engines use?
Thanks!
Re: Sil layshaft or not?
Posted: Tue Jun 10, 2014 9:26 pm
by gaz_powell
Nothing wrong with genuine SIL layshafts IMHO - from experience
Haven't got one to compare but would say its not SIL - most SIL engine components are stamped or cast.
Never had any fitting issues with genuine SIL layshaft/gearboxs/back hub bearing - always been easy to shim up on assembly.
Re: Sil layshaft or not?
Posted: Wed Jun 11, 2014 8:58 am
by terryj
its not sil its kevler (kevlar)
just compared my kevler layshaft to italian one and the boss that goes into the end plate is shorter on the kevler hence the problem shimming up i assume you cant get a thin enough shim
they made their own version of the gp in india using a lot of parts they made themselves
i brought an indian engine that turned out to be a kevler that had had too much welding done around the main bearing and end plate so decided to just use the parts
mag housing totally diferent wont take a gp bearing
end plate all the holes are half a hole out
had not tried the layshaft yet so will have to watch out for that
also has an li 150 gear box to try looks to be the same sizes but time will tell although the splines are different on the endplate end of the xmas tree
also has an li type side case and kick start which looks like it will fit
Re: Sil layshaft or not?
Posted: Wed Jun 11, 2014 11:16 am
by ArKaTxU
Thanks!!!!

Re: Sil layshaft or not?
Posted: Wed Jun 11, 2014 10:00 pm
by lambro
If the stamp KOI it is indeed Kelvinator Of India,
But it looks like KPI to me.
Not a clue, sorry.
Shaun.
Re: Sil layshaft or not?
Posted: Wed Jun 11, 2014 10:29 pm
by terryj
just had a look at mine and its stamped up with numbers so looks like mines a right mongrel
kpi could be kelvinator products india will have a look at some of my other bits tommorrow and see what is stamped on them
body work is also weird on these gps have a px style headset and odd sidepanels as well
Re: Sil layshaft or not?
Posted: Wed Jun 11, 2014 11:30 pm
by lambro
terryj wrote:just had a look at mine and its stamped up with numbers so looks like mines a right mongrel
kpi could be kelvinator products india will have a look at some of my other bits tommorrow and see what is stamped on them
body work is also weird on these gps have a px style headset and odd sidepanels as well
Kelvinator was deffo KOI.
This is mine, or for £900 could be anyones
I have taken my Muggy out of it though, and the original engine is in a box of bits.
Cracking looking scooter, and very different to all the run of the mill GP, Lamby variants from India.
Shaun.
Re: Sil layshaft or not?
Posted: Wed Jun 11, 2014 11:43 pm
by Yanker
Please explain what is going on with the lower damper mount and the front brake arm/cam: that all looks very wrong on first appraisal...... :-/
Edit: The damper location looks more logical: but show us some details please?
Re: Sil layshaft or not?
Posted: Thu Jun 12, 2014 12:43 am
by rosscla
I wish I had the cash to spare, I love the oddballs
Sent from my iPhone using Tapatalk
Re: Sil layshaft or not?
Posted: Thu Jun 12, 2014 12:27 pm
by Doom Patrol
No, no, he's going to pay somebody to take it away.
