factory

You got me, it was indeed an April Fools. I do wonder if engines could be linked together though. The picture is actually a diagram showing the Aquabug being raised or lowered for shallow water operation, from my Perry Aquabug owner's manual. The book does lie about the power of the O&R, it claims it's 1.2HP, not sure I believe that the carb was electronically setup at the factory either. The full manual will be added when I've scanned it all and created a pdf. David

I have one of the Polaris Power Pole power-heads, still in it's box. But I don't think I will ever find any of the attachments to go with it. Both the Snow Blower and the Power-Head were featured in Popular Mechanics magazine, the Snow Blower is in the December 1964 edition here; https://books.google.co.uk/books?id=SOMDAAAAMBAJ&pg=PA24#v=onepage&q&f=false The article mentions they were planning 11 other attachments including a lawn mower, grass trimmer, generator, sickle mower and the outboard motor (Power Oar). I wonder how many they actually made. And a Power Auger for ice is featured in the Jan 1965 edition here; https://books.google.co.uk/books?id=ReMDAAAAMBAJ&pg=PA130#v=onepage&q&f=false A few other attachments are mentioned on page 222 including a hedge clipper and pump. David

Talking of surprises, I found this special triple engined Aquabug when doing some research this week, it's rated at 4HP, has anyone got one? David

I've finally identified one of the mystery tools from the first post, the engine with the blue frame & guard with a K in it. It's a Krestronics KGC-3 Charge-A-Lite generator, same outputs as a Tiny Tiger but with a belt driven generator. The article below is from the Popular Science March 1962 edition, which is available online here; https://books.google.co.uk/books?id=OyEDAAAAMBAJ&pg=PA172#v=onepage&q&f=false I'm guessing it wasn't as popular as the direct drive generators like the Tiny Tiger or Amp-Champ as no complete generator has been found yet. There is a much bigger article on this generator in the Popular Mechanics April 1962 edition, the pictures look like a prototype version of it though. Available here; https://books.google.co.uk/books?id=F-EDAAAAMBAJ&pg=PA128#v=onepage&q&f=false David

I've been doing a bit of research and have found an early article on O&R engines including some of the first tools available, some of which probably didn't sell very well. The full article in Popular Science magazine June 1961 edition is available on google books, it starts on pages 64 to 67 & the rest is on pages 208 & 209; https://books.google.co.uk/books?id=ASYDAAAAMBAJ&pg=PA64onepage&q&f=false#v=onepage&q&f=false Here are some of the tools I've never seen before, including a gold separator, a different bike engine kit, a light aircraft tractor, a different design of compressor, a small mower and the smoke jumper (not sure it would have been very effective with that tiny water tank). I'm going to need a bigger shed if I find any of them. There are a few more O&R articles in both Popular Science and Popular Mechanics magazines available on google books if you look through the 1960's & 1970's issues linked below. Popular Science; https://www.google.co.uk/search?tbo=p&tbm=bks&q=ohlsson+rice&tbs=,bkt:m,bkms:1168684103302644796 Popular Mechanics; https://www.google.co.uk/search?tbo=p&tbm=bks&q=ohlsson+rice&tbs=,bkt:m,bkms:1168684103302643961 The May 1972 edition of Popular Mechanics has an article on a minibike with an O&R engine that was converted run on steam power, has anyone come across a steam powered O&R before? Looks quite dangerous. https://books.google.co.uk/books?id=StQDAAAAMBAJ&pg=PA21#v=onepage&q&f=false David

Send a PM (private message) to either Webhead or Wallfish to ask about parts, if you need help with anything else other than carb problems with your chainsaw it would be best to start a new thread about it. David

Webhead and Wallfish on here have spare parts for these engines as well as the new diaphragms for the carb. David

Good advice on the plastic fuel tanks. This is the the other one I have, is the cover beyond repair? Here is a picture of the Perry Aquabug label on the better one of the two, I seem to have lost the "supplied by Perry's yacht centre" sticker (maybe it fell off before I got it). They were imported by R Perry & Company Limited of Monks Ferry Works, 90 Church Street in Birkenhead, I've looked it up on Streetview but it looks like they are long gone. David

Welcome to the forum, your Aquabug looks in nice condition, I have a pair of them rebranded by Perry in the UK, both the plastic covers are in poor condition. There are quite a few joins in the fuel line, the clear tubing can become brittle and crack, also one of mine has a hole in the plastic fuel tank. David

No, it was in Florida, I do look on the US site occasionally. I have also seen two O&R's in Germany in the past, but I don't look there very often, one bare engine and the other was a Little Wonder hedge trimmer. David

Another unknown make O&R tool found in the completed listings search on ePay, It has a reduction gearbox driving a pump described as possibly being hydraulic. David

Seems it sold very quickly as a buy it now, after the auction ended. http://www.ebay.com/itm/p2047675.l2557 David

Definitely looks like a custom made exhaust, the cylinder cooling baffles/plates & the magneto plate have been modified to allow the exhaust to fit. David

That should clean up well, looks in good condition. I also use fuel/gas for cleaning at home, at work we use various expensive cans of spray cleaner for cleaning stuff there, these are mostly petroleum based, but fuel/gas works just as well. I don't have a compressor at home, but I do take the air filters to work and use the air line to remove the last remains of the old filter foam, before fitting new foam. David

It's best not to store engines with no plug fitted as dirt and moisture will get into the cylinder, even a dud plug will do for blocking it, I keep some for this reason. I even had a hedge trimmer where maggots had set up home in the cylinder, it go oiled & cleaned up fairly quickly. David

I have a similar design but smaller carb with the same fuel inlet/needle assembly, it has K&B MFG stamped onto it. You can post as many pictures as you like if you become a forum supporter, it's well worth the $10 and helps with the forum running costs. David

Probably the one being discussed in this thread, the full advert is on the website linked in post 3. At least two O&R powered Du-Bro helicopters are on youtube, a Du-Bro Shark helicopter which was found as a NOS kit about 11 years ago for $175; And a Du-Bro Hughes 300 helicopter; David

A few of us have one of the repair shop service manuals, which contain a lot of info including parts lists & diagrams for the engines & some tools and the engine maintenance instructions, most of the repair shops didn't bother paying for the yearly updates though so some info is harder to find. David

J-B Weld is available over here and presumably they have a similar product. Chemical Metal is a brand name of Loctite here, I'm guessing it's named something else in the US as there is a company called Chemical Metal Industries over there, just haven't found it yet. David

Definitely interested, is it one of these; http://www.vrhc.co.uk/rc helicopters/USA/Du-Bro/Du-Bro.htm From the link it does look like one or two did find their way over here in the 1970's, £195 from a Birmingham model shop in 1975. David

Just done a quick count and I have 29 different tools (a few more if you count different versions of the same tool) in my collection, 13 of which have been found over here. There is also quite a lot of engines here too, as well as a few duplicate tools. Definitely still catching up though. David

Chemical Metal is a brand of two part polyester resin made by Loctite/Henkel over here, it is probably sold under a different name in the US. The safety data sheet provides all the info on what's in it; http://docs-europe.electrocomponents.com/webdocs/001f/0900766b8001f4d2.pdf David

Unless the engine is an Octura conversion, the only parts usually changed for RC use are the carb and spark to glow ignition. Early engines can be more tricky to find parts for, but for the later ones parts are easier to find, apart from tanks and the cooling baffle plates for the cylinder which are often missing. For cleaning I usually clean the oil & dirt off with petrol (gas) using various old brushes (check they don't dissolve in the fuel first) for the cast alloy parts. I prefer to keep the original paint if it's not in bad condition. Steel parts that are rusty are cleaned with wire brushes/wheel and oiled after. I have looked into blueing/bluing kits for getting them looking like new, but haven't tried any yet. I don't currently attempt to clean corrosion from the alloy parts as I don't like the scratched finish that results from using wire brushes on softer alloy parts. Unless they have been left outside or somewhere damp they usually aren't corroded. The exception is the Turbair sprayer where the pesticide chemicals used seem to corrode everything. There are specialist companies out there offering vapor blasting that can make alloy parts look better (such as carbs/alloy covers for classic car & bike engines), no idea what it would cost though. David

It always ends badly if the cylinder is unscrewed with the piston stuck, if they don't turn over with the starter I usually put some oil down the spark-plug hole and after a week or so I remove the starter assembly & turn the flywheel to get them unstuck. I've also had a dried out PTO bearing on one engine preventing it turning over. So far I've only had one stuck engine where the piston could not be freed, it was a Champ generator which I suspect didn't have any oil in the fuel & seized up. A previous owner had already broke the con-rod removing the cylinder & lost most of the bearings. I did eventually separate the piston from the cylinder by pressing it out using a vice, a scrap crankcase and a rod of metal, the piston came out without any further damage (only try this with 14mm spark-plug cylinders, 10mm types will result in holey piston), but I never did manage to separate the rings from the piston. The early all metal governor vane does have a bend in the vane, if bent to the incorrect shape the shaft can fall out of the carb when running resulting in over speeding of the engine, I had this problem with my first engine, I did get it sorted with help from the forum. The Pile-O-Bits Tiny Tiger I restored did originally have a Type 111 engine, an incomplete Type 98 engine of similar age was used for parts to replace the missing crankshaft, piston and cracked crankcase. Before and after pictures here; David

Apparently the Chicken Power bicycle engine used the Type 181 engine, this has a single reduction gearbox with clutch, which gives a maximum output speed of 3300rpm instead of 6300rpm. Unfortunately I seem to be missing the Type 276 info from my book. The Chicken Power kits do appear for sale occasionally. David