That's a late 70's AMD puller conversion.
They retailed for about $110 when new.
The motor is definitely an .049.
The heat sink on the head gives the age away.
The kit came with the crude aluminum bracket, the gears, which were all gears from other cox gas powered cars. Mainly the dune buggy and the baja bug. The white large gear is probably from the cox pinto/vega funny cars.
Yes, the fuel tank is on the end of the motor, on either side of the needle valve is where you fill the fuel with a squeeze bulb filler, either hole, the other would be a vent, and would work visa versa.
No foam should be in the tank, just the little hose, and maybe a spring in the line to keep its shape.
Some did some don't.
The rear wheel and tires came with it also. And I've seen many converted ertl wheels and tires too.
Rear axle assembly is also from the same cox dune buggy, baja bug.
There should be a little gasket between the fuel tank and the crank case.
Also a gold ring, sort of a head gasket between the head, and the cylinder.
The recoil may be a ratchet style, or just a spring style, I couldn't tell from the pics.
They use the same spring.
Rubbing alcohol will be your best friend in removing the sticky castol oil from the motor and related parts.
It wont break down the plastic and makes it good as new.
The ertl tractors were pretty much cut up by the builder at will to fit the conversion.
I've only seen a few done nicely. Most are pretty hacked.
Ebay, and toy show prices are pretty much around $120 to $300 depending how nicely done, and how complete they are.
Info is far and few between on these.
Never seen a conversion new in a package, or not bolted to a tractor of some sort, but all diecast ertls either way.
I restore many old cox.... [hahaha... I know]
I have about 40 right now.
Pm me your email if you want pics or any further advise.
It's a pretty rare find, I've never seen one done up in a case tractor before, mostly Internationals, and Deere's.
