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Post  RAMJETT on Fri May 03, 2013 12:55 pm

hello I finally received my 1968 cox GTO and Camaro , they are in great shape with nice boxes but sadly some one at some point decided to put fuel in the engines. no big deal I dont think they even got them started but the old fuel did make a mess of the reed valve . this leads to my question I do not know how to remove the reed from this engine . it's a .020 with a metal tank but is different than my other pee wee motors . it has a E clip like a standard pee wee but it also has a what looks like a steel cage that covers the edges of the reed . very much like the newer .049 with the plastic back plate where you install the reed and just slide a sleeve over to retain the reed . I have never seen this on a pee wee and was wondering how to remove this steel cage , I don't know if it's threaded or pressed on . the reed can not be serviced without removing it and I don't want to force anything . has anyone ever seen this setup on a cox .020 and know how to properly service this engine . thanks Roger
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Post  Cox International on Mon May 06, 2013 11:32 am

At the behest of Roger, we are posting the pics of his cars. We have never seen Cox cars with 020 engines and actually, until now, did not even know they existed.

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Post  RAMJETT on Mon May 06, 2013 12:33 pm

thanks Bernie for posting the pictures for me .Roger
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Post  Mudhen on Mon May 06, 2013 1:02 pm

Hi Roger,
Except for the crankcase/flywheel assembly, the Camaro and GTO engines were the same as other Pee Wee .020 engines, (minus two tank back screws.) If by chance yours happen to be different, then read the instruction sheets and see if they shed any light on a new engine type. My guess is that residual, congealed fuel may be giving the appearance of a “steel cage.” If you can, post some pics.
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To the best of my knowledge there were three engine types for these .020 cars. But the three changes dealt with the flywheel.
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Post  RAMJETT on Mon May 06, 2013 1:34 pm

for sure has a metal cage I will post a picture ,it does not show this piece in the cars motor break down , they look to be original parts with thimble drome on the tank . both cars have the same sleeve , the reeds can not be removed with them in place . I missed that picture when I sent them to Bernie . I will see if he s kind enough to post the fuel tank picture for me .Roger
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Post  Mudhen on Mon May 06, 2013 1:55 pm

I’ve seen the type of tank you’re referring to, but I thought it came out later than 1968. It wasn’t a cage per se, but was a groove machined into the tank front that over-lapped the reed. The four points of the reed fit within the groove. But, the purpose of the groove, or lip, was to eliminate the need for the E-clip. That’s why I was confused when you said your engine had both. It could be a tank type I’m not familiar with for that vintage. (That would be coolio.) It also could be an assembly foul up. That is, the worker installed a clip when one should not have been installed. Who knows?!? It will be interesting to see. Popcorn
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Post  RAMJETT on Mon May 06, 2013 2:26 pm

I just sent Bernie the picture I am sure he will post it when he has a spare moment . I know what tank you are talking about with the undercut lip. this one is sort of like that and to be honest I am not sure my .020 should have a e clip though the spacing would be too great with the E clip out , the reed could fall forward with the clip out. the front of the tank is turned down somewhat from a normal pee wee where it fits in the back of the block then there is a metal cage that overhangs the reed by quite a bit and is pressed (or screwed on)down the sides of the reed block about 3/4 of the length of the part that goes into the back of the engine block ,when you see the picture you will see the void where the cage ends just before the bolting face of the tank .I have soaked it for 2 days and nothing , stumped on this one .it's not so much this would ever be run it's the fact that I cant figure out how they did it LOL. I just have to know now . regards Roger
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Post  Jason_WI on Mon May 06, 2013 6:53 pm

I have a .020 car engine with a funky tank. It has a larger crank also.

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Post  RAMJETT on Mon May 06, 2013 7:19 pm

there you go that's the one , that is the same motor I have in my 2 cars , you can see in your picture the metal sleeve . that engine for sure is from a GTO or Camaro . how the heck do you change the reed on it. does it look like that sleeve comes off on your motor. thanks for the picture .Roger
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Post  Mudhen on Mon May 06, 2013 7:40 pm

The larger crank was common for the 100-1 engine.
The tank is unusual to me. I can't recall having seen a production version. Now it makes me want to dig into my literature to see if I can find engineering changes for it. I also want to dig into my cars and see if I have one.
It looks to be a collar that is pressed fit over the tank front. I'm not sure why they added the processes without adding a note on the instruction sheets. Perhaps they inserted a leaflet into the box notifying the customer of a part change.
Maybe Mark has some more detail.
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Post  RAMJETT on Mon May 06, 2013 8:27 pm

Bernie looked it up on his cox database and could not find any mention of this change either . it's obviously a cox alteration ,you and I both having one with the same setup eliminated a home mod ,but as you were saying , what was the reason for the change and how do you service it . the only thing I can think of is to use a mylar reed and flex it to fit . I am thinking the reason for the change must be because in car engines there is nothing driving the crank forward like on the prop versions ,this metal sleeve may just be a a bearing surface for the crank pin to wear against. Roger
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Post  Mark Boesen on Mon May 06, 2013 9:19 pm

I'm aware of cars, but never owned one or seen engine.

Here's a link to a collecter buddy: http://gascarman.blogspot.com/

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Post  Mudhen on Mon May 06, 2013 10:01 pm

Ugghhh! Larry got those from me. Head Bang





Blow up Mad!
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Post  jsesere on Mon May 06, 2013 10:14 pm

Nice cars.
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Post  RAMJETT on Tue May 07, 2013 5:34 am

Seeing those cars makes me want to build mine and put them in my display cabinet, they look great .Shame cox never made a 1969 Pontiac Firebird I have a full size one in mint condition ,would love to have the model to match.
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Post  Cox International on Tue May 07, 2013 11:26 am

Here is a pic of the tank. Dan Sitter, in his publication, refers to that tank as "ECJ #151" early 60's, with a note that the reed holder is similar to the Space Bug Jr. one.

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Post  Mudhen on Tue May 07, 2013 1:34 pm

From the perspective of value, it’s best to keep the cars unassembled.
From the perspective of joy, you may want to build and display.
As for the Firebird…sell it and buy a light blue, mint condition ’68 GTO. There ya go..."model to match."
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