Tom C

Hi David, I have been trying to decode the Tas Motor engine story too! From my understanding the Tas small engines started with the Tas P5 a 20cc engine in 1960. these were available in 4 different types P5= standard float carby, P52= all position diagram carb, P53 single reduction gearbox with std or diagram carb, and P54 double reduction gearbox with either carb. it seems the Ohlsson Rice 20.6ccwas introduced in 1961 and seems like Tas went one up, In 1962 the P7 22 cc engine was introduced. With a 30x30 bore and stroke, Then in 1964 Tas released all the P7 powered machines, note how the first letter is P designating P7 engine type, the PEG-100 110 volt and the PEG-200 240 volt generators, the PED-3 Engine Drill, the PCS-3 chainsaw sold in Australia under the Mobilco importers name, along with others, including a lawn mower and shearing machine and pump etc. I have noticed three different variants of the P7 engine first has O/R type pull start knob and start cord roller guides and the fan cover screws on from the back, also smaller screws on the carb manifold. Then the middle variant P7 arrived Circa 1966/7 it has a T pull start handle and different start cord guide that screws on and the fan cover screws on from the front, larger screws in the inlet manifold, and different balance factor on the crank. The third variation P7 circa 1970 has a removable pull start mech. which is screwed on the fan cover. My guess is for easier servicing. I have noticed P7 engines in a few different colours, first is a red colour, then a blue, also silver grey on my generator. And have seen a green one on a chain saw. in 1973 a new engine family was introduced the QS-22 22 cc without reed valve the engines i have seen are orange, and Gold. The orange ones have been used on the QEG-300 generator and other contraptions, then in 1975 the T-23 family engines were released. The two TED T-23 Engine drills I have are blue. David I would be interested in what you think on my decode thanks Mate cheers Tom

Hey Clint, it arrived today and it’s awesome condition, not had much use and looks like it would probably go! It came with the manual which is cool. i am well pleased with my purchase, the Tas Machines are breeding now at 10! Cheers Tom

Had a great score, my new little Tas generator arrived today! Bit of a time warp. It’s not had much use, and came with original box fuel mixing bottle, funnel and manual. Looks like it will probably go! It’s got Silver grey P7 engine and looks like a mid production I am guessing 1965-‘69 it has the fan cover that has screws on the outside and a T pull start handle. It’s instruction manual has a pic of the earlier engine with the OR type pull start knob. Can’t find much about it on the net. The manual says PEG100 is 110volt they have an AC output socket on left and DC socket on right at 400 watts and 12v DC terminals at 10 amps or 120watts. The one I have is a PEG200 which is the 220-240volt version 400 watts. the Tas engined contraptions are slowly breeding, I have a Sharpcut P7 powered shearing machine, and a PED3 P7 engine drill, and bits of a P7 pump. And a P7 engine, am looking for a P7 chain saw! Cheers from Australia Tom

Any luck getting the cobwebs out of your old number cruncher? I would love to see your Tas Brochures? Cheers Tom

Hi CNew, so what your time line on the P5 and P7 engines? I have just bought another one a P7 generator hope it will arrive this week!cheers Tom

Have you guys come across this tiny mini bike called a BIG ELEPhANT? It was built in Japan and uses a Tas P7 engine or have seen one with a Tas S22? Here is a photo of the original sales brochure and it has a Big Elephant sitting on the seat of a 1969/70 Honda CB750 which probably dates it pretty well!

Hi papawinner, your engine looks to be the earlier type, if you look at your top photo look at the lower right side crankcase screw and there is a small v cast recess in the crankcase near Thea screw which is the same as my earlier engines, also I have noticed the two screws that hold the carb manifold are the smaller type as with the early engines I have, so I suggest you have an early type engine? Same as the the one on the right in my pic. I think your engine would have had a diaphragm carb and would have been a P72? Parts are very hard to come by. Good luck with your project. I am in Australia and do have some spare engines that I would sell, but postage overseas is expensive. Cheers Tom

Brandon, the Tas P72 engine can be operated in different orientations, it is different to the other P7 engines in as far as it uses a diaphragm carb, some contraptions like the P7 generator also have engine speed governing with that carb too. from my owners handbook there appears to be 4 main versions of those engines that were sold. P7 = utility engine with regular carby. P72= utility engine with all position carby. Can also be fitted with a governor. P73=Utility engine with regular carby and single reduction gearbox. P74= utility engine with regular carby and double reduction gearbox. Like used on the little Petro. It looks a nice clean engine you have there, nice pickup.

Same thing . https://en.wikipedia.org/wiki/Crutching#:~:text=Crutching refers to the removal of wool from,rear legs of a sheep for hygiene purposes.

Yes Paul thanks, in Oz at the Sunny Gold Coast. Cheers. Tom

I am still looking for a gearbox for a P7, and am happy to trade a good engine for one. Either a single reduction type P73 or a double reduction P74 is good thanks regards Tom

Some engine parts from the Tas P7 owners handbook Here is a Tas P7 sheering machine. It’s missing the sheers and flexable cable, I believe they were standard to most machines.

I got this in a job lot of Tas P7 engines purchase, a Sharpcut portable sheep crutching sheering machine. Anybody ever seen anything like this?