Bucket-O-Cox parts lot

That is the 4th Mercedes tanked engine I've seen in the past couple of weeks (loose from an actual Mercedes car...). At least that engine looks to have the original muffler, and hopefully the correct cylinder.


I picked up this one a couple of weeks ago:


(picture from the listing)

Was going to post about getting the broken needle out of the backplate, which I did get out.

Here's the 3rd Mercedes tanked engine I've seen: https://www.ebay.com/itm/COX-049-MODEL-AIRPLANE-ENGINE-WITH-VENTED-TANK/324363464492 Still available!  

Wel y have one of them in part pile of unused stuf wit no interes its particular tank wit thimble drome sing tank fuel tube is intact sing faded litle and corrosion on outside back plate was used on black widow wit plastiques back plate broken crankchaft crankcase used To start him wit starter cylinder ??? Wonder wat y have done wit... now no wat was used for Mercedes??

Since we're all on this subject of identifying and guessing Jasons newest treasures, I have another question regarding a strange to me needle assembly.... It is in the bottom center of the blue bucket. Never seen a needle like this. Any help, clues, or ideas?

@NEW222 wrote:Since we're all on this subject of identifying and guessing Jasons newest treasures, I have another question regarding a strange to me needle assembly.... It is in the bottom center of the blue bucket. Never seen a needle like this. Any help, clues, or ideas?

Ooof, good eye. Wonder if it's a fine thread?
Nice piece regardless.
Bob

A little over 10lbs of goodness arrived today. It’s going to take a while to go through all of it.

Just digging in the crankshaft tub I found brass babe bee crankshafts. Unfinished TD .020 and TD .010 crankshafts that are part way through the process. Most of a RR-1. A TD .09 spray bar with a brass needle valve. Unfinished .09 spraybar. Cut down TD .09 crankshaft. This was maybe used in the TDRC .09. Unplated babe bee backplate. And the holy grail of parts are 2 Olympic rear drum valve crankshafts that have the extended pin.

I suspect this lot came from a Cox employee possibly worked in the R&D area.

Looks like one hell of a lot!

I can't say I've ever seen or heard of brass cranks for these engines. Drum valve Olympic cranks, that you actually needed! What's the chance of that?

Well, it looks like Christmas came a bit early this year! Brass crankshaft sounds interesting. I wonder what the difference in weight is between the standard crankshaft and a brass one is? Maybe the reason they did not use them? Even seeing the new unfinished and started crankshafts is also very neat. Thnaks for sharing pictures of your goodies with us.

Wow, nice find Jason, not only rare and useful items but also rare conversational collector pieces for display, congrats.

Jason,
Looks like some missing parts that you needed for your Cox RR-1in this collection of parts?
I needed a replacement back plate for my Cox RR-1 because the top mounting ears were broken off.
Fixed it like you did on yours. Drillings out a Baby Bee (metal back plate) with the hole slightly undersized
then reaming the hole with a long taper reamer to get the fit nice and snug so no fuel or air would leak in.

Here is my Cox RR-1 with new back plate (from Cox Baby Bee)




Taper reamer set:


With this lot of parts there has to be an original backplate? There was one (or two) in the photo?



Lucky guy there!  
If you run across a piston ( or piston/cylinder) for a Medallion 15, let me know.
I have a Medallion 15 without a piston.

Would really appreciate it.  

Brass would have been while setting up the machines that produced the cranks. This is very common.

If you intend to use any of those cranks be sure to check that they have been case hardened. If soft, they are conversation pieces. I would guess that many of these parts are out of tolerance as the number of in process parts would seem to indicate. Without prints how would you know other than compare to production parts?

A great score regardless.

Found this strange engine with spacers and then a drive plate. I assumed some type of threaded adapter with a standard crankshaft. It’s actually a long solid one piece babe crankshaft. Also found one slightly longer. There is also an unfinished early diecast crankcase with a casting defect. Definitely R&D stuff.

I contacted the eBay seller and he stated it came from an estate sale. Didn’t remember who it may have been.

Are these Roy Cox teather car shifter handles? They are cast metal.

Two cut away engines in the lot. #2 cylinders.

@Jason_WI wrote:Are these Roy Cox teather car shifter handles? They are cast metal.

The look like for the first version Thimble Drome Special to me

Found what looks to be a set of 2-80 thread rolling dies. Each one labeled 1, 2, and 3. Where the needle valve threads rolled vs cut?

Wow. Some more very neat stuff there. I really like the cut-aways. They always look neat. Would also be interesting to find out what they were thinking or what they were planning with the engine with the extra long crankshaft.

Lots of part belong To machinistes worker From cox cool stuf prototype parts ??? Run the long crank for fun vidéo