Posted May 10, 2014 - 06:29 PM
The magnum has an extended depth oil pan. Initially it did not look like my aqs pan would fit. I took the extended pan off the magnum and saw that, underneath the gasket there are holes drilled that line up with my aqs oil pan....but they need to be tapped with threads to bolt on the old aqs oil pan. That's easy enough, but then we noticed that unlike the aqs block...this magnum block has some fillets cut into the base part of the block that are not contained by the aqs oil pan...in other words, unless we can fit a thin plate between the aqs pan and the magnum block, to cover the fillets then oil will pour out....
Also noticed that the crank shafts are different diameters...the magnum engine has larger journals than our old aqs motor. A flywheel swap is not possible because of this.
If this camshaft in the magnum engine does not work, it is not going to be a very good parts motor at all. The magnum does have balance gears, but I am really not confident in them because, I can wiggle them around with my fingers.
All seems like a lot of work to make this magnum work....oh yeah and because the crank is bigger, my mower clutch won't fit.
I can see far enough in to the magnum to determine that the cam does have material where the ignition lobe is on my old aqs cam, now, whether the lobe is ground to the correct profile to fit into my aqs motor is a qusetion that I can only answer by taking the cam out of the magnum motor and it would seem a shame to take it apart if it works with merely a new carb.
I really only needed a cam from this magnum motor to make my aqs ready to re-assemble, but if it is not going to work anyways there is no point taking the magnum apart.