Howzitgoin' eh!
Newbie here... I got 2 of these engines and a pile of spare bits for 100 bux, for a rebuild, one good engine and one scrap. The good engine was dismantled, cleaned, fiddled with, and is now reassembled and I'm tidying up the loose ends now to install it in my Sekine 26" bike.
It's a 66cc 2-smoky, it appears to be a Grubee or similar mill and is probably rather old since it has the axial spark plug head, as opposed to the newer angled-plug head, but has very little mileage on it judging by the condition of the cylinder, rings & piston.
The cylinder appears to have Schnuerle (sp?) porting, and is the usual chrome-lined job, with the usual fragility problems. It also has one-piece steel flywheels on the crankshaft, and roller bearings on both ends of the connecting rod. It has an NTTC carburetor, which I believe is referred to as the 'NT'.
There were no stickers on the little mill when I got it.
My questions: Can anyone identify this engine and tell me anything about it such as expected power, lifespan, availability of spares etc.
And more importantly, are there other cylinders I can use when this one wears out? Are there 66 or 48/49/50 cc cylinders I can get with cast iron linings instead of the usual chrome plating? Chrome plated cylinders work well when made to high quality standards, and I'm pretty sure these little mills are at the lower end of the quality spectrum
Although my crankshaft/conrod looks very nicely made.
I just figured in the future, I'd like to have a cast iron bore cylinder if it's available and will fit the transfer port base shape of the crankcase, since all of these China Girl crankcases look pretty much the same from the outside.
Any ideas, and thanks
Ian
Newbie here... I got 2 of these engines and a pile of spare bits for 100 bux, for a rebuild, one good engine and one scrap. The good engine was dismantled, cleaned, fiddled with, and is now reassembled and I'm tidying up the loose ends now to install it in my Sekine 26" bike.
It's a 66cc 2-smoky, it appears to be a Grubee or similar mill and is probably rather old since it has the axial spark plug head, as opposed to the newer angled-plug head, but has very little mileage on it judging by the condition of the cylinder, rings & piston.
The cylinder appears to have Schnuerle (sp?) porting, and is the usual chrome-lined job, with the usual fragility problems. It also has one-piece steel flywheels on the crankshaft, and roller bearings on both ends of the connecting rod. It has an NTTC carburetor, which I believe is referred to as the 'NT'.
There were no stickers on the little mill when I got it.
My questions: Can anyone identify this engine and tell me anything about it such as expected power, lifespan, availability of spares etc.
And more importantly, are there other cylinders I can use when this one wears out? Are there 66 or 48/49/50 cc cylinders I can get with cast iron linings instead of the usual chrome plating? Chrome plated cylinders work well when made to high quality standards, and I'm pretty sure these little mills are at the lower end of the quality spectrum
Although my crankshaft/conrod looks very nicely made.I just figured in the future, I'd like to have a cast iron bore cylinder if it's available and will fit the transfer port base shape of the crankcase, since all of these China Girl crankcases look pretty much the same from the outside.
Any ideas, and thanks
Ian
