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Cylinder ID problem
Page 1 of 1
Cylinder ID problem
I've been reorganizing my Cox engine and parts collection an found a real head scratcher. None of the literature and data bases I've found square up with this one:
Single intake port with no booster flutes, slitted exhaust, top fin milled for wrench, not sure about SPI and, drum roll . . . stamped #3 dead center on exterior cylinder wall between exhaust port bottom edge and base.
Clues??
Single intake port with no booster flutes, slitted exhaust, top fin milled for wrench, not sure about SPI and, drum roll . . . stamped #3 dead center on exterior cylinder wall between exhaust port bottom edge and base.
Clues??
ticomareado- Account Under Review
- Posts : 1089
Join date : 2013-10-03
Location : NC
Re: Cylinder ID problem
Many of Cox model car engines had single port cly.,
crankbndr- Diamond Member
- Posts : 2886
Join date : 2011-12-10
Location : Homestead FL
Re: Cylinder ID problem
#3 was used on the Mercedes car. Early versions didn't have SPI.
Jason_WI- Top Poster
Posts : 3123
Join date : 2011-10-09
Age : 46
Location : Neenah, WI
Re: Cylinder ID problem
As far as I know, NO Cox Bee powered cars (except for Prop Rods possibly) used SPI cylinders. The wheel drive cars produced so much smoky grease while running under the body shell, that engines with SPI cylinders would crap out on their own exhaust fumes. Since my little queerity of a cylinder has slit exhaust ports, it couldn't have been OEM on a Mercedes either. The data base and literature that I found are all over the place with Venoms and this that and the other high performance plane engines. But there's no way this cylinder can be high performance with only one plain intake port.
ticomareado- Account Under Review
- Posts : 1089
Join date : 2013-10-03
Location : NC
Re: Cylinder ID problem
Is it possible it was stamped incorrectly? I could see that happen.
Cribbs74- Moderator
Posts : 11843
Join date : 2011-10-24
Age : 48
Location : Tuttle, OK
Re: Cylinder ID problem
Most plausible explanation so far. The #3 stamping looks like Cox/Estes factory work as opposed to some hobbyist running a prank.
ticomareado- Account Under Review
- Posts : 1089
Join date : 2013-10-03
Location : NC
Re: Cylinder ID problem
Or maybe it was supposed to be a #3 and somebody in the factory just let the thing slide with incomplete port milling work? At what stage of production were Cox cylinders stamped with numbers?
ticomareado- Account Under Review
- Posts : 1089
Join date : 2013-10-03
Location : NC

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