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Terrot 250cc 1925
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bob2



Joined: 06 Dec 2007
Posts: 1727
Location: Malta

PostPosted: Fri Mar 11, 2016 9:21 am    Post subject: Reply with quote

Oh no please Rene keep posting, its interesting stuff to read.
True you get discouraged when no one replies to your threads but that does not mean no one's interested!
I surely am, would love to get an old motorbike to restore but I have not get a bike licence and the space is quite limited right now!!
I'd like anything from the 70s downwards, preferably small cc though as a starter!
Your bikes are looking fantastic, love the terrot and the yamaha is as close as possible to a new old bike!!
job well done Wink
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Bitumen Boy



Joined: 26 Jan 2012
Posts: 1733
Location: Above the snow line in old Monmouthshire

PostPosted: Fri Mar 11, 2016 11:38 am    Post subject: Reply with quote

Rene, I'll echo the previous two posts. Just because a lot of us have nothing interesting to add to your excellent posts doesn't mean we aren't interested - far from it. Keep up the good work!
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D4B



Joined: 28 Dec 2010
Posts: 2083
Location: Hampshire UK

PostPosted: Fri Mar 11, 2016 12:26 pm    Post subject: Reply with quote

Rene, the 2700 views, many of which are by the silent ones are a sign of the level of interest!

Keep it coming, I for one am always interested in bikes
(if only I could persuade her it's time I had one (or five) once again Cool
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alanb



Joined: 10 Sep 2012
Posts: 516
Location: Berkshire.

PostPosted: Fri Mar 11, 2016 2:25 pm    Post subject: Reply with quote

Please don't stop posting, although I have not previously made a reply I look forward to your posts.
_________________
old tourer


Morris 8 two seater
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Rene



Joined: 06 Jul 2012
Posts: 125

PostPosted: Sat Mar 26, 2016 9:32 pm    Post subject: Reply with quote

I have been to a cars and coffee event nearby and took the fizzy with me,there was a lot of interest from the spectators and to my surprise at the end of the day it won first price for best restored bike Razz
Only downer was it was the only bike on the event Rolling Eyes
René
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D4B



Joined: 28 Dec 2010
Posts: 2083
Location: Hampshire UK

PostPosted: Sun Mar 27, 2016 10:56 am    Post subject: Reply with quote

Looks fantastic in the sunshine, congratulations on your first prize Cool Cool
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Rene



Joined: 06 Jul 2012
Posts: 125

PostPosted: Sun Mar 27, 2016 9:31 pm    Post subject: Reply with quote

Thanks D4B,yeah.....the prize Wink
It is easy when there is no competition to win an award,but i am confident when there were more competitors it made a good chance to win an award.
Now it is waiting for Kings day April 27,there is a huge show of old mopeds in a town called Schoonhoven,not expecting to win enything overthere as there are many beatiful restored moped competing and a skillful team of judges will look at 50 points of the moped,
As mine is'nt original factory i woul'nt have a chance..........
I don't care,the fizzy is just the same as i owned it back in the days,that was my intention and i succeed in this.
To Joe Public it's a winner,today went only to the local Burgerking and parked it in front of the store,lots of folks had comments a were very positive about it,as i was showing off a bit it felt good they liked it Very Happy

Now it is time to crack on with the Terrot,finally the wheels came and they look stunning,put some tires on and line them up in the forks,
Already painted the rear frame,it was'nt painted yet because i left it with the wheel company so he could determin where the rear pully had to come to line up with the brakes.
To do list:
Mount the rear frame.
Shim the wheels into the forks
Mount tires
mount gearbox
Make cables
refurbish brakes
Find a shackle drive belt
and lots of other things i am not thinking of now
TAKE PHOTOS
René
Post pic's tomorrow
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Rene



Joined: 06 Jul 2012
Posts: 125

PostPosted: Mon Mar 28, 2016 5:52 pm    Post subject: Reply with quote

Pictures







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D4B



Joined: 28 Dec 2010
Posts: 2083
Location: Hampshire UK

PostPosted: Mon Mar 28, 2016 6:07 pm    Post subject: Reply with quote

The rear wheel is a work of art! Like the brake design, so simple.

Great work nicely done Cool

What is the other vintage bike in the photo?

Cheers Steve
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Rene



Joined: 06 Jul 2012
Posts: 125

PostPosted: Mon Mar 28, 2016 7:30 pm    Post subject: Reply with quote

Thanks Steve,the other bikehttp://www.oldclassiccar.co.uk/forum/phpbb/phpBB2/viewtopic.php?t=17780
The rear wheel is certaily a piece of work done by Haan wheels,a very famous dutch maker of Motocross wheels.
The father of the current owner started this company and works a couple of days a week on classic motorcycle wheels and wire wheels for cars.
This was a bit of a challence because the rims i had(original)were not usable because tires are not available enymore(so called balloon tires)only other sizes are available.
So he had to made new 40 spoke rims with 39 extra holes for the short poulie spokes,but it could not be a copy of the old rims because the short spokes on the old rims are on one side of the rim and with a modern type of tire the steel belt in the tire would be on the nipple of the spokes.
So he had to put the short ones also in the middle of the rim and take care the poulie had the right offset to fit the bakes.
I left the complete rear frame with brakes at his place including the axles and after 3 months he came up with this,the rims are powdercoated and the spokes stainless on my request.
Before i went to him i had a price quote from other companies for only a rear wheel at 600-800 euro,i paid for these two wheels 420 euro which i am happy with.
René
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D4B



Joined: 28 Dec 2010
Posts: 2083
Location: Hampshire UK

PostPosted: Mon Mar 28, 2016 8:41 pm    Post subject: Reply with quote

http://www.oldclassiccar.co.uk/forum/phpbb/phpBB2/viewtopic.php?t=17780
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Rene



Joined: 06 Jul 2012
Posts: 125

PostPosted: Tue Apr 26, 2016 7:28 pm    Post subject: Reply with quote

The wooden brake pad on the footbrake was broken,so i made a new pad out of a piece of tropical hardwood.
The other brake pad from the handbrake was renewed with old nos asbestos brakepad material by a guy who is into this since the '50s..........
When i had the brakes sorted out it was time to start the bike.........after lots of kicking only a fart and a puff of smoke was all i was able to produce.
Further investigation made out the ignition was way off.
I did'nt get this because when i stripped the bike it was running and i intent to leave it as it was.
Because of the wobbly wheels that were in the bike when i bought it i only did drive it for 100 meters or so but it was running o.k.
When i tried to adjust the points i discovered there was no spigot in the sprocket that drives the shaft of the magneto........i made a new spigot and set the ignition timing again,while doing this i found out the markfrmo tdc on the flywheel was out of place,i pulled the flywheel off to discover there was also a spigot which had sheared off and the flywheel had damaged the stump of the crank.
I pulled the engine apart,splitted the cranck and in the lathe i cleaned the stump,the flywheel i turned the center out and made a new conical center bush which i tig welded into the flywheel.
I put the engine togeter and into the frame,set the points and gave it a kick........no succes.
Time to scratch my head,light up a fag and check everything.......then i found there was a spark but not a ferm one so i took off the magneto and went to a specialist,he tested it and came to the conclusion it was crap.
Now the magneto is at the specialist and he is building a new magneto into the old casing,waiting for it now...........
I also spoke to an old bloke 98 years old who has worked all of his life on bikes(and still often does)and he asked me about the petrol oil mix i was going to use,i told him my intention was to use a 1:25 mix because nowadays the oil is so much better quality as in 1925.
He laughed and told me to use the original advised mix of 1:10.....
I asked why?
He explained it was neede to seal the crankcase,not especially for lubrication but because there are no seals or bearings into the cranckcase,only bronze bushings as bearings for the crank,these bronze bushings have1/10mm play on the cranckstumps and the oil seals it off.
Ofcourse i noticed there were no seals in the casing but i did'nt know/think about behave of the petrol/oil mix,you see you are never to old to learn,i love these old mechanics,it was 78 years ago when he fiddled on these bikes and he still knows how it works.
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D4B



Joined: 28 Dec 2010
Posts: 2083
Location: Hampshire UK

PostPosted: Tue Apr 26, 2016 7:33 pm    Post subject: Reply with quote

98 years old, if only he could write down all he knows for us to keep.

Keep up the good work Cool
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Rene



Joined: 06 Jul 2012
Posts: 125

PostPosted: Fri Jul 29, 2016 8:14 pm    Post subject: Reply with quote

It has been a while...........i had a problem with the flywheel connection to the cranck,the conical fitting was damaged so the flywheel could'nt be mounted corrctly and came loose when i tried to start the engine.
Finally i removed the center of the flywheel and made a new center in the lathe,also turned the crank a bit off in the lathe and welded the new center into the flywheel.
Now it fits like a dream and i marked the tdc on the flywheel and made some markings at several degrees so i could set the ignition on time.
This a bit of swimming in the dark as i don't have any reference how much degrees the ingnition must be set.
I started to set it at 5mm before tdc with the spark lever on the advanced position and gave it a go.....four kicks and the engine started running Razz
It rund resonably good and now i can start fine tuning the ignition and carb.
I have driving it for a couple of testruns around the block and i must say it drives remarkably well,for a 91 year old bike that is.........
The brakes are...........well....a bit interesting,when put my bigfoot shoe on the pedal you almost can hear the brake thinking"what is the meaning of this action?.......oh,you want to slow down...."
The front forks are even more interesting,it wiggles and waggles up and down,thats it Rolling Eyes
With my new toy coming up('29 model A)i presume the bike will be on the backburner for a while,but i'll keep busy with it when the wheather is too bad to drive the Model A.
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Rene



Joined: 06 Jul 2012
Posts: 125

PostPosted: Sun Oct 30, 2016 6:24 pm    Post subject: Reply with quote

Bad news about the Terrot,the problems with the flywheel and crack are still there.
The cranck still was wobbly a bit and caused vibrations,lot of vibrations.......
This made the flywheel wobble more and more until it had worked itself loose damaging the conical part of the cranck again.
This will be an endless story which i don't want,so now i had a talk with my son in law about manufacturing a new cranck.
He is head principal at the instrument makers school and he agreed to make it a learning project for his students,drawing and machining a new cranck and at the same time make roller bearings istead of bronze bushings into the cranckcase.
The desingn of the crank will be the same shape as original only with a pressed big-end pin instead of a bolted pin and fully balanced.
intead of the bronze bushing bearing roller bearings will be used with an extra support bearing to prevent the cranck bending on the flywheel side.
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