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Jos van Genugten is a young engineer and is approaching restoration jobs 1. as an afficionado, 2. as somebody who likes to show but even more likes to drive his cars. It occured to him that whenever the subject of the cone clutch comes to table, that there are as many opinions as cone clutches...! Below you will find his approach and his opinion. Feel free to respond.
"Part of our beloved hobby is the restoration/maintenance of the aged & tired vehicle. Just recently we have started a series of repair samples under the name "PreWarCar Workshop". In this week's Workshop a maintenance job that many people have dealt with in the past: relining a cone clutch.
There are many ways of doing this job, and just as many opinions on which material to use and how to maintain it after driving. I would like to begin with this article asking you to comment on this article with your own experience on material and lubrication/non-lubrication of the chosen material afterwards.
As said: this way I’m showing you is just 1 of the ways that I happen to have excellent experiences with this method during thousands of pre-war miles with my own vehicles. Anything could potentially work from greased leather belts to certain rubber types to composites and everything in between. Please comment!
For this job, I have chosen a high-quality modern friction material which is found in excavators, certain marine applications and heavy-duty off-road and mining equipment. The reason for this material is that it has very good wet and dry brake capabilities. Meaning that it will work both when it is dry as new, but also after having suffered many miles behind your non-sealed pre-war crankcase, soaked in oil and grease.
The glue that is used for mounting it is a cold-applied high-temperature high-strength 2-component glue which is especially for glueing metals. I have tried using many different glue types in the past, and this one has given me the best results. Although for a cone clutch it’s not a very difficult application, because 99,9% of the times the clutch will be pressed in the cone and it’s fully seated all the way around. It’s a different story for brake linings.
For the story of making this part, I prefer to let the pictures speak for themselves, since the whole story is very self-explanatory and easier to describe from pictures. Please visit my photo album for the complete report via the link
(work, photos & text by Jos van Genugten)
Remains of a 1912 Regal Underslaung, found in Virginia, USA ( editor: well in fact at PreWarcar, check 'Sales History' ) in September 2005, an almost bare chassis ( Nr. #2722 ) with only small bits of a body (see photo as found), but it was clear that it wasn't a factory coachwork. Cowl, racing bucket seat and remains of a round petrol tank indicated sporty use in its past. The underslung set up is a joy to the eye alone.
Jan Bruijn decided to restore the car as a race car and use as much original parts as possible, the radiator core was beyond repair but the old radiator shell was saved, so was the bonnet and all mechanical parts with exception of a part of the clutch. The chassis was heavily pitted by rust but could be retained after strengthening inside. The four cylinder 3.5 litre 25HP is cast as a monobloc with the crankshaft showing an offset with the goal to reduce the effect of sideforces of the pistons after combustion. The engine is connected with a straightforward three spead gearbox.
The cowl was beyond repair as was the sheet metal of the seat. To blend old and new parts Jan and his mechanics choose to paint the car by hand and make the finish as a well used car. To your editor's pleasure and pride jan Bruijn adds: "We were very Lucky to locate some very nice period fittings such as the early rev counter and fuel pressure pump through the parts of sale pages of PreWarCar."
A restoration that took us nearly12 years. Jan Bruijn of Galleria Style & Auto will exhibit the car for its very first re-appearance at the Concours d'Elegance at the Palace Het Loo, next 3rd and 4th of July.
(photos courtesy Galleria Style & Auto)
Rainer Schmid, earlier winner of PreWarCar's 'Spirit of the Event' Trophy at Vintage Montlhéry with his Sénéchal tandem racer is now working on a new project. This based on an amazing eight cylinder engine he found. Aside all engineering aspects in our view the first problem is what name to give to the beast. Offline Eight? Shortened Straight Eight? U-Eight? Zero Degrees V8? Rainer has no clue regarding maker or origin yet it looks european and vintage. The engine has one cast block with two parallel cylinder banks. And there is a number reading 2-448816. Of course one could also say it is a straight eight with offset placement of four and four cylinders. We are most curious to learn what our more educated readers have to say about this intricate piece of machinery! (oops, nearly forgot to show you the crank side of things)
No, this is part of a photo taken during the Circuit du Nord, held in May of the same year, and published in the sports magazine La Vie au Grand Air of May 25th. This event consisted of a 2 day race for cars and motorcycles and a 3 day fuel consumption contest for motorcycles, cars and trucks. Alcohol was the only fuel to be used, as the contest was organised by the french government to promote the use of alcohol, an important agricultural product of France and a potential rival for petrol. For the competitors of the 2 day race the only importance lay in the fact that it was the first race run under the new 1000 kgm weight limit and thus was a test for the newly developed racing cars. The race itself however was a disappointment. Spread over two days and run in the North of France, it was raining cats and dogs most of the time and there were hardly any spectators. On the first day the major part of the 56 competitors fell out, so on the second day only 19 cars would eventually reach the finish. On the photo we see the brave drivers Grus and Oury on their Renault racers (which were still equipped with De Dion-Bouton engines), finishing 1st resp. 2nd in the voiturette class. Maurice Farman on a Panhard & Levassor was the overall winner. The use of alcohol was not a success.
As Gerald Rose in his classic "A Record of Motor Racing" described it: "Most drivers disliked it and filled up their tanks with petrol again as soon as they could." The alcohol caused a reduction in speed, the drivers of the Serpollet steam racers were even complaining about a speed reduction of almost 20 per cent! After this event there was only one other alcohol contest, a fuel consumption contest for cars. It was held on the Circuit de l'Hérault in an important wine area in the south of France. Surely a much better combination than with the northern sugar beets ....
Pictures and words: Ariejan Bos
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