Building A looper Beast

[R Austin]

Seems that the thread is getting a little stale. So I will add a little material that may not be related to the beast but might still be of interest. The Beast is ready to hit the water next summer, so I have time to work on other projects. One of which repairing the damage to my original Quincy Looper.

The mid case has been damaged in the past and needed to be replaced and after breaking a ring in Depue a couple years ago I decided to make a replacement part.

I approached this casting different than the beast. The beast was what is referred to as a cope, drag with two cheeks. This casting is a simple cope and drag with a core for the crank and transfers. This however required a complicated core. I drew the core in the computer and printed out the plastic pieces required to produce the core box. Had those two parts cast . Then I machined and hand polished the interiors for smooth release. Made a sand half to check the dimensions then produced the full one piece core. The bottom end core had to be longer than the center cores. So a block was made to drop in the one end half to shorten to make the end for the center cores. The center cores have different crank lengths on the end which allow making the different center to center cylinder bores by reversing the core. The top of the casting becomes long allowing the use of the same core as the bottom. Just have to cut the top of the casting off. Easier than making a third core for just the top end.

[R Austin]

With the completion of the back half of the crankcase and the fact that I had already made the casting for the replacement heads on the Quincy looper, I figured that I might as well make the block also.

The reality of it is that the block is the easiest pattern to make. With these three patterns only two more are required. The exhaust elbow and the piston. I will reach out to Mark Suter and ask if he still has the pattern for the elbow. I have made the patterns for two pistons. A 50 cubic inch size and a 60/66 size. I just need to test the core boxes for them. Making cast pistons does not scare me as the pistons that we ran back at the time were cast. The material used in the castings today and with heat treating they will be fine.

Just thinking about the 50 inch motor as an E motor for mod. Pump gas, I guess E85 is pump gas and 85% alcohol. Anyone interested?

[Powerabout]

whats the yellow material?

[Freddie Webb]

Amazing work!!!

[Mark Suter]

Hi Dick... Sorry I am a late reader of your latest offering in this thread. I am responding to your question on the availability of an original exhaust elbow pattern that will work with your remake of the six cylinder Quincy Looper. I never had any Quincy patterns but I do have the elbow pattern for the Parker Looper which will work on a Quincy motor. The only significant difference in the elbow is that it is designed for use with a sheet metal cone (ILO cast aluminum cone). I am planning to donate my racing engine collection (including the Parker patterns) to the Barber Vintage Motor Sports Museum in the fall of this year so the elbow pattern is still in my possession... if you want to borrow it. Let me know.

[Freddie Webb]

Mark Suter, do you have any Omc race stuff??

[Mark Suter]

Freddie,

I have a lot of OMC motors in my collection but no motors or loose parts to sell. Sorry.

[MErkMAniak]

Mark Suter, do you have any Omc race stuff??

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