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Cox Engine of The Month
June-2024
F4D Phantom II's

"Cox .049 Marine inboard engine."

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Post  rsv1cox Wed Nov 24, 2021 10:42 pm

a continuation from my "Top Shelf" post.

Restoration?  More like cobbling it back together as best I can.

Remember.....all body attaching points broken, fuel tank vents broken off, fuel line nipple broken off and lodged in the fuel line.

Wen Mac .049 Lotus restoration  P1012206
Wen Mac .049 Lotus restoration  P1012205

Used a straw from an aerosal spray can cut to shape and with a common pin through the hole to align and keep it open and glued the filler/vents in.  Same for the fuel tank nipple using Testors red tube cement.  Let cure overnight and heated the original fuel line with a heat gun and slipped the line over the nipple and immediately held the top body on to mold the line to the contour of the enclosure.  The fuel tank has a channel molded into it for the needle valves flexable stem.  

Wen Mac .049 Lotus restoration  P1012209


The front suspension is meant to flex somewhat, similar to the Cox Mercedes, but it depends on three locating points all of which were broken.  Jason had made me these posts to repair my Cox Mercedes but they work great here also.  Hole and peg style, I just drilled them out and cut them to fit the Lotus.  

Wen Mac .049 Lotus restoration  P1012208
Wen Mac .049 Lotus restoration  P1012207

It's a start.  No trailer queen here.  Rough as a cob, but when I'm through it will be able to run.  I cleaned the motor (parts cleaner) checked the glow plug and compression. Both great.
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Post  getback Thu Nov 25, 2021 12:59 pm

Looking Good ! So I take it your going to run that bad boy ? Straight runner ? Jeep Friends/Meeting
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Post  rsv1cox Thu Nov 25, 2021 10:31 pm

getback wrote:Looking Good ! So I take it your going to run that bad boy ? Straight runner ? Jeep Friends/Meeting

It has provisions for it Eric, guides snapped into the crosses under the body.  Optional with a 90 degree tether, except this one has the side body tether fixtures broken off.

Had to make a descision.  Risk breaking whats left of the posts by attempting to unscrew the self-tapper or cement as is.  Chose cement as is.  Did the bottoms.  Once I glue in the top posts, that's it. This thing isn't coming apart.  

Wen Mac .049 Lotus restoration  P1012210

Wen Mac .049 Lotus restoration  P1012211


$20 investment, I ain't sweating it.
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Post  Ken Cook Fri Nov 26, 2021 12:34 am

My buddy Dan buys one and we proceed to try it out in the parking lot at our flying field. First run on the bridle, line gets wrapped around the drive wheel. 2nd run , he tries to nurse the car around and pushes it into the circle where it takes off across the circle and snaps hard on the end of the line spinning around out of control. 3rd attempt the crankshaft breaks and fun time is over. I offer him up a Mccoy engine and he was able to use the shaft and it's game on again. We try again and the car is too light and needs about 2.5 oz's of lead in the bottom to work which we do. We finally get some good laps and a terrific run. Next attempt he's proud and wants to show everyone. He starts the car, launches and forgets to remove the battery box from the circle and the car comes around striking the box and just explodes into pieces. I couldn't stop laughing but he was pretty hot. The car now resides in a box.
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Post  roddie Fri Nov 26, 2021 6:49 pm

Oh yea Robert!!!!!!!! I'd like to see you run that Lotus.. like I ran my CEF "Cars are the Stars" Rod-E-Liminator.
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Post  roddie Fri Nov 26, 2021 6:58 pm

Those posts (like the ones that Jason made) could serve as mounts for a bridle. A simple music-wire "Vee".. with tow-in/out adj. provisions.
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Post  rsv1cox Fri Nov 26, 2021 7:33 pm

roddie wrote:Those posts (like the ones that Jason made) could serve as mounts for a bridle. A simple music-wire "Vee".. with tow-in/out adj. provisions.

Yes, I use those posts all the time. Jason sent me about 20. The peg on one end really stabilize's and aligns the post. I just drill out the existing hole to 7/64th and cement it in. Tight fit.

I just like pushing the envelope on these disasters seeing how far I can go before everything goes bonkers.

Wen Mac .049 Lotus restoration  P1012212
Wen Mac .049 Lotus restoration  P1012213
Wen Mac .049 Lotus restoration  P1012214
Wen Mac .049 Lotus restoration  P1012215

These little Dremel drill bit sets (eight bucks and change at Walmart) cover 90% of my hobby needs.

Wen Mac .049 Lotus restoration  P1012216


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Post  roddie Fri Nov 26, 2021 7:46 pm

rsv1cox wrote:
I just like pushing the envelope on these disasters seeing how far I can go before everything goes bonkers.  


It's what we do.. Smile
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Post  rsv1cox Fri Nov 26, 2021 9:14 pm

Ken Cook wrote:My buddy Dan buys one and we proceed to try it out in the parking lot at our flying field. First run on the bridle, line gets wrapped around the drive wheel. 2nd run , he tries to nurse the car around and pushes it into the circle where it takes off across the circle and snaps hard on the end of the line spinning around out of control. 3rd attempt the crankshaft breaks and fun time is over. I offer him up a Mccoy engine and he was able to use the shaft and it's game on again. We try again and the car is too light and needs about 2.5 oz's of lead in the bottom to work which we do. We finally get some good laps and a terrific run. Next attempt he's proud and wants to show everyone. He starts the car, launches and forgets to remove the battery box from the circle and the car comes around striking the box and just explodes into pieces. I couldn't stop laughing but he was pretty hot. The car now resides in a box.

I enjoyed your story Ken.  

Breaking the crankshaft and replacing it, line gets wrapped around the drive wheel.  good times.  Reminds me  of running my modified Roy Cox pusher with a Babe Bee grafted on the back and "Old #2" almost completely destroyed and cemented back together.  Staging and photographing the "crash" was fun too.  

Amazing this thing was dragged around the circle on a tether with the hood blown off and no front suspension and the Babe Bee screaming up a storm.

Bits of plastic glued on with Testors red tube and it's ready to go again.

Wen Mac .049 Lotus restoration  P1012217
Wen Mac .049 Lotus restoration  P1012218
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