I have two vintage gas-powered Cox cars but I need help to know they work.
Vintage Cox gas-powered cars
Started by
milmilhas
, Feb 17 2014 08:39 AM
11 replies to this topic
#1
milmilhas
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Posted 17 February 2014 - 08:39 AM
Miguel Pereira
#2
Joe Mig
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Posted 17 February 2014 - 08:41 AM
Pictures and a description of what you need help with might help.
Joseph Migliaccio. Karma it's a wonderful thing.
"Drive it like you're in it!!!"
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"Drive it like you're in it!!!"
"If everything feels under control... you are not going fast enough!"
Some people are like Slinkies... they're really good for nothing... but they still bring a smile to your face when you push them down a flight of stairs.
#3
milmilhas
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Posted 17 February 2014 - 08:42 AM
I just have the cars.
Miguel Pereira
#4
Cheater
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Posted 17 February 2014 - 08:50 AM
Miguel,
Perhaps this previous THREAD by toybaron at Slotblog will help.
Gregory Wells
Never forget that first place goes to the racer with the MOST laps, not the racer with the FASTEST lap
#5
Cheater
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Posted 17 February 2014 - 08:55 AM
Another resource might be the Cox Model Cars & Boats forum at the Cox Engines Forum.
Gregory Wells
Never forget that first place goes to the racer with the MOST laps, not the racer with the FASTEST lap
#6
TSR
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Posted 17 February 2014 - 10:17 AM
Miguel,
There are three major types of Cox gas-powered cars. Small, medium and large, with engine displacements from 0.020 ci to 0.049 ci.
Most that have been run and left without maintenance, have their engines seized up from the methanol contained in the fuel, that corrodes the cylinder walls and sticks the piston solid.
The first thing to do is to remove the engine, remove the plastic tank, and dip the engine including the reed valve, in MEK or acetone to dissolve the solidified alcohol. Once the parts are clean, the cylinder can slowly be unscrewed from the crankcase, and removed completely in a twisting motion, then cleaned. All parts must be freed from any trace of methanol, and lubricated with synthetic oil, then reassembled.
The metal chassis and screws can be cleaned from solidified methanol with acetone. The plastic parts can be cleaned in mineral spirits that will not affect their material.
Once everything is free and assuming that the glow plug is still good (it can be tested with a battery), it will be ready to go again, but a good piece of advice: don't run it unless you are willing to clean it up soon after! These were "one-time use" toys for most children, as if let sitting for a while, they were useless...
There are three major types of Cox gas-powered cars. Small, medium and large, with engine displacements from 0.020 ci to 0.049 ci.
Most that have been run and left without maintenance, have their engines seized up from the methanol contained in the fuel, that corrodes the cylinder walls and sticks the piston solid.
The first thing to do is to remove the engine, remove the plastic tank, and dip the engine including the reed valve, in MEK or acetone to dissolve the solidified alcohol. Once the parts are clean, the cylinder can slowly be unscrewed from the crankcase, and removed completely in a twisting motion, then cleaned. All parts must be freed from any trace of methanol, and lubricated with synthetic oil, then reassembled.
The metal chassis and screws can be cleaned from solidified methanol with acetone. The plastic parts can be cleaned in mineral spirits that will not affect their material.
Once everything is free and assuming that the glow plug is still good (it can be tested with a battery), it will be ready to go again, but a good piece of advice: don't run it unless you are willing to clean it up soon after! These were "one-time use" toys for most children, as if let sitting for a while, they were useless...
Philippe de Lespinay
#7
milmilhas
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Posted 17 February 2014 - 05:35 PM
Hi, everybody,
Many thanks to all.
The cars that I have are the Corvette Stingray and Ford GT.
Many thanks to all.
The cars that I have are the Corvette Stingray and Ford GT.
Miguel Pereira
#8
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Posted 17 February 2014 - 06:17 PM
These are the "medium size". They have 0.020ci engines. 
Philippe de Lespinay
#9
Jairus
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Posted 17 February 2014 - 06:31 PM
The Ford GT should have a .049 actually. At least I have one here that says so on the box...
Not that it matters much, since Philippe is correct about dissassembly and cleaning. So many of those old cars get gummed up totally by sitting with-out cleaning.
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#10
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Posted 17 February 2014 - 07:44 PM
Jairus, you are correct, the Ford and the Chevy had 0.049 ci engines and so do the Buick, the Eagle-Ford and the Chaparral 2C.
The Camaro and the Pontiac in the 1/24 scale have the 0.020 ci motors.
And then there is this one, my favorite ...
The Camaro and the Pontiac in the 1/24 scale have the 0.020 ci motors.
And then there is this one, my favorite ...
Philippe de Lespinay
#11
proptop
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Posted 17 February 2014 - 08:52 PM
If you need engine parts, Bernie at Cox International should be able to help...
Tom Hemmes
Insert witty phrase here...
#12
proptop
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Posted 19 February 2014 - 02:37 PM
http://www.rcunivers...-valve.faq.html
Cox reed valve Frequently Asked Questions.... 
Trying to make a "Titled Link"...??? feel like a duh right about now...
Anyway...the link is to a forum in rcuniverse that will answer any ? anyone might ever have about Cox, and a lot of other small glow engines...
Tom Hemmes
Insert witty phrase here...
