The piston and head on this engine had some scoring so they'll need to be replaced.
Notice the size of ring gaps on the old one (left) compared to the other. That's a lot more blow by
Thought I had a NOS head but couldn't find it. Found a nice one in the stash parts anyway along with a nice used piston. It'll get new rings and should be good to go. Sometimes the rings are a PITA to get off the piston.
The ring gaps should NOT be lined up near each other for final installation (like they are in the pic).
To quick test them, insert the piston into the head and blow through the spark plug hole. The difference from a bad one to the other is very noticeable so it's instantly known when one is bad. It's not a very scientific method compared to doing all of the precise measuring but these little things are not going on the space shuttle. Even the old one would've run but just not have the same performance.
Started right after posting that pic so it took about an hour-ish to completely disassemble the engine. Not too bad as just recently doing one helped quite a bit.
Now for the 3+ hours to clean it all up! LOL
The generator section will start after the engine is done
Pulled this one off the shelf to clean up and rebuild for the next project. It's in fairly nice condition so no painting need.
That's one of the nice things about these little engines. It's cold outside so these can be done inside and right on my office desk where it's warm.
I use a citrus based cleaner so no fumes inside the house but I've been thinking about getting an ultrasonic cleaner to drop all the parts in. There's so many little nooks and crannies on these things so cleaning it is about 80% of the work time involved time to rebuild an engine.
whats it going on? its very clean hope to see more. my stuff is still packed .
going down to the Florida flywheel show on the 20th of January maybe will find something to make me get going again
working for someone its hard to find time
Offered it to seb T for that French car if he wants it. Otherwise it'll go back on the Polaris Power Pole snow blower it came from.
Cleaning all the parts is what really takes the most time. So many little nooks and crannies so went through about 50-60 Q-tips and quite a few paper rags. I need to get an ultra sonic cleaner
That Florida Flywheelers show is on my bucket list for a while. Might be able to pull it off for the February show if work isn't crazy busy.
That would be really nice of you. I have the goal of June 2025 (little big mans) to finalize it and these pieces will help me greatly.
Yes, the design of the pulley and the engine support are within my capabilities but if anyone has any suggestions I am interested because I would like to get as close as possible to the original.
here is my email to exchange more easily
rallyes@hotmail.com
Rebuilt that engine and cleaned up that gearbox. New seal and gears look very nice.
Got the engine done and mostly assembled but still need to do carb top half and recoil. Has a nice hot blue spark just spinning by hand and very good compression. Didn't need to do rings as everything with the cylider and piston was clean and good like this engine had very low hours.
Definitely not as fast doing this as I used to be. And spent a bunch of time looking for escaped bearing rollers! LOL I let a few out by mistake when not paying attention.
Feeling old as I can't see very well and the hands aren't as steady putting those little bearing rollers back in.
Happy New Year John! Great to see another engine getting new life. You’re inspiring me to do another O&R, it’s been too long.
Recently I’ve been restoring some old Singer sewing machines with the direct-drive motors (models 101, 201, 301 and 15-91), kind of a fun change of pace and will be useful for a few projects I’m planning with canvas and leather.
Yeah, it's been pretty slow here too for the O&R stuff. It definitely helps to get inspired by other's projects, just like I'm all excited and inspired to see one of those cars in action.
This is a model J gearbox engine from a Polaris Power Pole snow blower. Recently member @seb T was asking about a gearbox for a Devillaine Ouragan car. So I had the engine out anyway and needed to pull the gearbox to verify if it would fit his engine. Well I might as well rebuild everything.
Gearbox with a new seal and gaskets. Plus the entire engine just in case he is interested in a completely rebuilt package. Got everything cleaned up tonight. Tomorrow I'll remove the head and re-ring the piston and put her back together.
That would be really nice of you. I have the goal of June 2025 (little big mans) to finalize it and these pieces will help me greatly.
Yes, the design of the pulley and the engine support are within my capabilities but if anyone has any suggestions I am interested because I would like to get as close as possible to the original.
here is my email to exchange more easily
rallyes@hotmail.com
Email sent
I found an NOS shaft seal and installed it. The clutch, bearings and gears are in perfect condition and look like new.
super thank you for all this information if you have this gearbox with the centrifugal clutch if I understood correctly I am interested and if in addition I manage to have an improvement for my carburetor that would be great
I do have the correct gearbox and willing to sell it to you at reasonable cost in order to help you get that car going. I want to help you!
I do not want to sell it if you are not going to actually use it to get that car running because giving up this gearbox disables one my tools, the snowblower. I would prefer to keep if it never gets used on that car and just sits on a shelf because these particular gearboxes are not easy to find.
As far as making an engine mount, do you have the skills and tools to make something like that? Or any other missing parts like the pulley? I can probably help with some of that too if needed but measurements from the car and detailed pictures are required.
Good, it has the key slots in it. A gearbox shaft with or without the keys will fit onto that engine shaft.
The pulley will probably need to be made by a machinist.
Your engine looks to be complete so that's good. But it will probably need a new carburetor diaphragm to run properly. Maybe David @factory can fix you up with a new diaphragm to get that engine running and tested.
If it needs any parts I can ship them with the gearbox.
The auction link in post #1 has a description of the reversing lever, I was thinking the same idea, the belt is loosen to slip and the flat part of the pulley is pushed towards the rubber tire on that large internal drive pulley.
So we have several pictures showing the larger size double reduction gearbox, this narrows it down to Models F & J at 900 RPM or Models U & V at 1750 RPM, the model or type is on the opposite side to the serial number, exactly where no one would photo it. Models J & V have a clutch fitted.
David
I'd imagine it's going to be the 900 RPM gearbox with a clutch. Just by guessing on those pulley sizes and the tire size, then putting those numbers into a RPM to ground speed calculator it estimates it at about 11-12 Km/h or about 7-8 MPH. Which would seem about right for a child's car
yes I understand they are very rare and mine and in my family for a very long time I think in the 70s and I would like to restore it for my son who is 8 years old and why not participate in the classic Le Mans
I would love to see one of those old cars actually running. Especially so with a child having fun doing it at Le Mans. When is Le Mans?
4 minutes ago, JUST O&R said:
Found another pic I had its not a very good pic of the mounting. I thought this might help a pic of the ser #
yes I understand they are very rare and mine and in my family for a very long time I think in the 70s and I would like to restore it for my son who is 8 years old and why not participate in the classic Le Mans
The car might be worth more NOT restored but cleaned up and mechanically restored. Fix and repair all the mechanical parts BEFORE painting anything.
It's difficult to know from just a few pictures but if there isn't any rot or large damage, keep it with the original paint as much as possible and looking vintage
I believe this gearbox will work for the car. I will also look for a shaft that fits on the end of it for the pulley.
Before selling, let's make sure we can get or make all of the parts needed first. I would like to keep the engine for the snowblower -- BUT I will sell it for something like that car, because they are so rare.
Maybe that flat on the pulley is used for reverse. Like it's made to contact the rubber ring on the axle because that will make it go in reverse. But the engine mount would need to move in order to engage it.
seb T Do you have any engine mounting parts? It appears like that is missing
Another question I haven't got an answer for, what is hidden on the inside of that pulley? There has to be a reason why it's extended.
I thought that too when I first saw it.But the pulley pictured above appears to be something someone machined. Doubtful there's anything special about it since the gearbox has the centrifugal clutch inside of it. The extension or thickness of it is probably just to fit on the length of the shaft so the shaft doesn't protrude out the end.
Let's rebuild another one/ Amp Champ
in Ohlsson and Rice
Posted
The piston and head on this engine had some scoring so they'll need to be replaced.
Notice the size of ring gaps on the old one (left) compared to the other. That's a lot more blow by
Thought I had a NOS head but couldn't find it. Found a nice one in the stash parts anyway along with a nice used piston. It'll get new rings and should be good to go. Sometimes the rings are a PITA to get off the piston.
The ring gaps should NOT be lined up near each other for final installation (like they are in the pic).
To quick test them, insert the piston into the head and blow through the spark plug hole. The difference from a bad one to the other is very noticeable so it's instantly known when one is bad. It's not a very scientific method compared to doing all of the precise measuring but these little things are not going on the space shuttle. Even the old one would've run but just not have the same performance.