pee wee .020 identification help needed.

that would be cool.
have you heard of any problem with strength on the thinner walled cylinders?

is it the truly thin walled cylinder you are asking about, or the one with portion below the exhaust ports shaved down for weight savings(thats what I was old the reason for cutting down was)

I am not very certain on years about this matter,however my 1978 cox radio controlled cub came with a peewee020,(natural aluminum colored tank) that had the relief cut below the exhaust ports.
Meanwhile, I have a teedee, AND a (red tank)peewee that I bought new in the late 80`s both have the "uncut" cylinders

I will have to look over my "stash" of peewee`s &teedee`s to see which has what and what timeframe they are from.

I could probably help you out a lot more if you can show me a picture or link me to the eBay auction page (if it has a picture on it).

If you don't have a picture then please answer the following...

1) Does it have a tank or a backplate that requires an external fuel tank?
If it has a backplate that requires an external fuel tank, skip to question #7

2) If it does have a tank, is it plastic or metal? If the tank is plastic (it is very well most likely a TD .020 - if it is metal, then it will be a Pee Wee)

3) What color is the tank? Red or Silver?

4) Does the tank backplate say COX on the back of it?

5) Does the tank say "THIMBLE DROME" around it?

6) Does the tank have 1 or 2 filler tubes on the backplate?

7) What color is the driveplate? Red or Silver?

8 ) Is the driveplate round or hex shaped?

9) Is the crankcase neck straight or curved (thicker near the cylinder and thinner near the driveplate?



10) Choose the cylinder that looks like yours (look closely at the design, not condition or color of the cylinders in the pictures):

A: This cylinder was used from 1957 to about 1968?-1970?

B: Used between 1977? to about 1982?

C: This cylinder was used from 1968?-1970? to about 1977?. Cylinder "B" was used until this cylinder was brought back around 1983? to the end of production in 2005.

(the dating for the cylinder types may be off by a few years, if someone (hint hint: Mud) could correct these dates for me, that would be great!)

11) Does the engine have a throttle ring on the cylinder? If it does then it is most likely a R/C Pee Wee made between 1983 and 1995-96. The throttle ring could have been added as a part somewhere down the line.


I hope I have asked all the questions for me to be able to picture the engine in my mind and to help you out with dating and information.

its pictuer A
red metal tank, says 'thimble drome'
crankcase 'neck' has a curve to it.

nemoskull wrote:its pictuer A
red metal tank, says 'thimble drome'
crankcase 'neck' has a curve to it.

I would say it is from the 60s, it sounds like a 60s engine with the Thimble Drome on the tank, thin neck and the thin cylinder.

yay!
you know, its kinda wierd holding something in my hands that was new and in the air when my grandmother was chasing her small kids around the yard......

My radio comtrolled cub trainer/s peewee engines are a 50/50 mix of both B & c(pictured) i was given the timeline or 1978 on my most recent purchase of these. The ones without relief cuts had a metal ring around them,that looks like a portion of a chrome plated hose clamp, the others with relief cutouts do not.

Admin`s timeline dates your thimble drome model as a good bit older than any of mine for certain, now I want one

i decide to get rid of it. it needs a piston reset BADLY. but seems pretty good otherwise. glow plug is coil type, not W style. it works.
you want it?

my $.02

A: This cylinder was used from 1957 to about 1968?-1970?

1956 to 1970+/-

B: Used between 1977? to about 1982?

Thick wall 1975-79

C: This cylinder was used from 1968?-1970? to about 1977?. Cylinder "B" was used until this cylinder was brought back around 1983? to the end of production in 2005.

Stepped cylinder from 1971+/- to 1975

Mark Boesen wrote:my $.02

A: This cylinder was used from 1957 to about 1968?-1970?

1956 to 1970+/-

B: Used between 1977? to about 1982?

Thick wall 1975-79

C: This cylinder was used from 1968?-1970? to about 1977?. Cylinder "B" was used until this cylinder was brought back around 1983? to the end of production in 2005.

Stepped cylinder from 1971+/- to 1975

The stepped cylinders I know were used all the way up to the last Pee Wees produced by Estes.

nemoskull wrote:i decide to get rid of it. it needs a piston reset BADLY. but seems pretty good otherwise. glow plug is coil type, not W style. it works.
you want it?

Get a reset tool! You can never have too many tools! http://coxengines.ca/product.php?productid=366&cat=41&page=1 You can always list the engine in the For Sale/Wanted section, there is always someone looking for some parts especially the backplates. On just about every RC forum, there is someone looking for Pee Wee backplates.

why the backplates?

nemoskull wrote:why the backplates?

They are not sold anywhere and do not show up on ebay often. The biggest reason though is that the mounting tabs are prone to cracking and falling off due to their thin wall construction.

oh, i can see how a metal backplate would be a good thing.

I would love it if Bernie or Matt would start producing nylon .020 backplates.

Add that to the enormous wish list.

With tooling costs and minimum production runs yoiu looking at $15k to $20k for the one part. And that is sourced in China. That's a boat load of backplates you have to sell to pay for the NRE costs.

well, i figure if we spread the .020 love enough, people will want it, then it will be proftiable to produce them. personally, i think there is an entire generation that has no idea of the fun of 1/2A, and the .020 over looked in the past as 'too small' by current UM Parkzone standards, is wonderful. the noise and the poison methanol is the only draw backs. but then again, people drive car and use posionous gasoline into them.

nemoskull wrote:well, i figure if we spread the .020 love enough, people will want it, then it will be proftiable to produce them. personally, i think there is an entire generation that has no idea of the fun of 1/2A, and the .020 over looked in the past as 'too small' by current UM Parkzone standards, is wonderful. the noise and the poison methanol is the only draw backs. but then again, people drive car and use posionous gasoline into them.

Thats what i said but when you think about it if they were to re make even the surestart it would retail for about $40 and thats the cheapest one.

nitroairplane wrote:

nemoskull wrote:well, i figure if we spread the .020 love enough, people will want it, then it will be proftiable to produce them. personally, i think there is an entire generation that has no idea of the fun of 1/2A, and the .020 over looked in the past as 'too small' by current UM Parkzone standards, is wonderful. the noise and the poison methanol is the only draw backs. but then again, people drive car and use posionous gasoline into them.

Thats what i said but when you think about it if they were to re make even the surestart it would retail for about $40 and thats the cheapest one.

Which may become feasible as Bernie and Matt's raw stock dry up.

Getting a surestart made?
Yes i think it would be.