wanted - moto giro bike
- Thread starter Paul LeClair
- Start date
Andy
Hero member
- Location
- Auckland, roughly
As an apprentice, my boss used to say ‘More speed, less haste’. Similar sentiments I suppose.
But bugger all that, it’s a bloody race! Give it heaps!
But bugger all that, it’s a bloody race! Give it heaps!
If it's anything like the Milano-Taranto, "time-trial" would be more approriate. Usually enough time is allocated to allow basic fettling. Not a race at all, main goal is to finish.
But these things usually turn into a race, all by themselves...
piet
CLEMTOG
Hero member
"Force-fed valve gear in italian tiddlers is quite rare for the era, Laverda reserved such luxuries for the works racing engines."
remind me of the one and only time that I had a Laverda scooter engine to pieces, (a sloped back 50, not an upright 60) no oil pump, and yes its an 4 stroke, OHV pushrod engine with tiny rockers on shafts, the factory solution was a gauze in the oil filler cap (on top of the rocker box) to allow crankcase venting at the highest pint of the motor, so presumably it was deliberately intended to be "fumy" otherwise no rocker shaft lubrication., this might be the same on 75cc and 100cc bikes, I have had a 100 apart, but cant remember an oil pump, anybody?
CLEM
remind me of the one and only time that I had a Laverda scooter engine to pieces, (a sloped back 50, not an upright 60) no oil pump, and yes its an 4 stroke, OHV pushrod engine with tiny rockers on shafts, the factory solution was a gauze in the oil filler cap (on top of the rocker box) to allow crankcase venting at the highest pint of the motor, so presumably it was deliberately intended to be "fumy" otherwise no rocker shaft lubrication., this might be the same on 75cc and 100cc bikes, I have had a 100 apart, but cant remember an oil pump, anybody?
CLEM
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Clem,
The 75 and 100s have an oil pump, quill feed to the LH crank end and further to the big end. Splash feed from there to the gearbox, upper end gets only very sparse oil mist that then exits through the gauze in the rocker cover.
Another notable "pump-less" 4-stroke is the 150/175/200 Heinkel single-cylinder engine, used in their scooters and microcars. These could scream all day long at max rpm without issue.
Makes me think all those 10mm pumps for twins and triples are grossly over-rated...
piet
The 75 and 100s have an oil pump, quill feed to the LH crank end and further to the big end. Splash feed from there to the gearbox, upper end gets only very sparse oil mist that then exits through the gauze in the rocker cover.
Another notable "pump-less" 4-stroke is the 150/175/200 Heinkel single-cylinder engine, used in their scooters and microcars. These could scream all day long at max rpm without issue.
Makes me think all those 10mm pumps for twins and triples are grossly over-rated...
piet
- Location
- Calgary, Alberta, Canada
good question, and I don't know. Will find out....
easiest way to carry spares with a backup vehicle would be to throw a spare bike into the support vehicle......
When I did the Moto Giro d'Italia, it was emphasised to us that we were not, ever, to mention words such as 'race/'corsa'/'gara'/'competizione' or anything of that ilk ...If it's anything like the Milano-Taranto, "time-trial" would be more approriate. Usually enough time is allocated to allow basic fettling. Not a race at all, main goal is to finish.
But these things usually turn into a race, all by themselves...
piet
Of course, what happened in practice was another matter.
- Location
- Calgary, Alberta, Canada
7.2 hp, max 100kph, and “race”. Hmmmmm
Yep, Milano Taranto, 1500 km, 1 rider, no stops apart from petrol, tobacco and wine.
100 km/h, at night with 6 volt lighting and on public roads with donkey carts is quite fast enough.
A race
Paul
- Location
- Calgary, Alberta, Canada
Hi Paul
the local rules do allow electrical upgrades. In my case, will be the VAPE 12 volt charging system conversion and the brightest LED possible front and rear. I have LED headlight bulbs in all three Laverda triples, in my 1972 Triumph Spitfire car, and in my 92 Jag sedan Bright enough to be seen from space..... I have been chatting with Wolfgang about what he has available for a modern shiny reflector with an H4 or similar fitment that can be retro fitted into the stock Gilera/CEV headlight shell. The local Moto Giro here is held mid September each year, cooler than brutal summer heat, but often cold and rainy, this past September it was pouring sheets and buckets of rain most of the event, on public roads. I may also add an LED strobe or two to the Gilera just to avoid being run over by traffic.....
for Ariel, look what I just found, jewelry like velocity stack for the tiny little MA 18 Dellorrto carb..... http://www.guzzino.com/devestuama13.html
Shipping is a bit too expensive all by itself, need to find other stuff on the Guzzino site that the bike absolutely has to have.........
chrisk
Hero member
- Location
- Brisbane, Australia
They even have an ash tray for a motorbike ........... handy.
After a 10-hour day in the saddle you'll surely change your mind.
Those fellas were tougher than nails, they had an arse of iron... never mind the balls. Not all about speed alone, you needed stamina, and lots of it. A modern GP pales against those long-distance road races.You forgot the big guns. If I read it correctly, a 4-cylinder Gilera averaged 126km/h in 1955.
piet
- Location
- Calgary, Alberta, Canada
- Location
- Calgary, Alberta, Canada
and I found an engine oil circulation diagram showing oil pumped up to the rockers etc
Andy
Hero member
- Location
- Auckland, roughly
I know. I was trying to maintain Paul Ls morale.After a 10-hour day in the saddle you'll surely change your mind.
You forgot the big guns. If I read it correctly, a 4-cylinder Gilera averaged 126km/h in 1955.
piet
Paul
- Location
- Calgary, Alberta, Canada
chrome is done, picked it up today, Everything was in pretty rough shape when dropped off. Looks great now. Clean and shiny. I only had parts chromed that I couldn't source to buy new. Photos.
phoned the specialty welder today, told him I would like my engine case half back so I can begin building the motor. He tells me he will try and get to the engine case welding repairs "this week......" Not holding my breath. When I get the engine case half back I still need to refinish it anyway, and the head and the cylinder barrel and new piston are with the specialty machinist who is typically not any faster than the specialty welder. In fairness to the machinist, in relaltion to the head he is waiting on me for the new valves, guides, etc still en route from Italy.
phoned the specialty welder today, told him I would like my engine case half back so I can begin building the motor. He tells me he will try and get to the engine case welding repairs "this week......" Not holding my breath. When I get the engine case half back I still need to refinish it anyway, and the head and the cylinder barrel and new piston are with the specialty machinist who is typically not any faster than the specialty welder. In fairness to the machinist, in relaltion to the head he is waiting on me for the new valves, guides, etc still en route from Italy.
Attachments
piranha-bro2
Hero member
- Location
- Melbourne
The sun glinting off all that dazzlery will blind you while riding, Paul! They do nice work.