TinkerBrick, on 13 August 2011 - 10:25 PM, said:
i just took an hour of fooling around a bit with my unimog.
I might have a way to putt an XL-Motor into the mainframe without changing to overall design.
First i replaced the two rear 13-hole liftarms on the upper frame with two 9-hole lift arms - please disregard the dark bluish gray, as they just came to my hand first.
This leaves fairly enough room for the xl-motor.
When looking from the rear of the unimog towards to gearbox you can spot the engine driveshaft below the steering shaft. The axle sticks out 1 length unit so i attached a joint an a 3 stud-axle with a large 24 tooth gear.
The motor also has a 3 stud axle with a small gear attached.
The motor is lowered into the frame - leaving the pinholes of the motor exactly on the level of the upper mainframe.
Well, the mod is far from begin finally, but a first test showed it works, and the 4x4 feature of the unimog remains untouched, since the engineshaft is connected to the main differential.
However, i'm planning on gearing down to torque within the portal axles. Another aspect that needs to be change is that the platform needs to be raised by on one unit as the motor sticks out of the frame to far.
I've just motorised my 'Mog using the method you described, well, almost.
I disconnected the lower mount of the rear shocks and removed from the chassis the 2 black pins and the grey axle they were holding.
I fitted connector to the drive shaft and a 3 length axle into that. Then 2 friction pins with cross into 2 (2905) 'coat hanger' pieces (sorry, don't know the proper name) and a black friction pin into the motor. Then just huffed, puffed & swore until the motor was in and hooked up to the engine drive shaft.
Works a treat. Steering next....
I know there are more elaborate & elegant solutions but I've taken a few months building my 'Mog by mouth and taking it apart would be harder than ever.