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-   -   Engine size (https://www.rcuniverse.com/forum/gas-engines-142/1378900-engine-size.html)

Skygopher 12-26-2003 02:16 PM

Engine size
 
how did Quadra put the size of their engines on them. I have one and can't see any markings????[:o]

KidVermin 12-27-2003 01:44 AM

RE: Engine size
 
I hate calling guys honey:

My older Q-35 had a sticker on the face of the mag rotor and I thought a very small size stamping on a side below the fins. Can't check for sure since I traded it for a G-38.

Oops, after 20+ years I remembered I had a parts 35 downstairs. Mine doesn't have any size stamping on it either. If you can give me some dimensions, I'll compare it to this one.

Skygopher 12-27-2003 08:57 PM

RE: Engine size
 
1 Attachment(s)
Sorry about the screen name but it is one my wife has called me forever and most of my buddies have picked up on it.:eek: I am trying to get my old one back. Anyway, Here are a couple of pics. of the engine. any help is appreciated and also i am unable to get any spark out of it.[:@]

KidVermin 12-27-2003 10:48 PM

RE: Engine size
 
Honey:

Sure does look like my 35, except mine has the recoil start housing.
Here's some dimensions.
6 1/2" overall ht. of crank housing to top of cyl. housing
3 1/4" max. fin width looking from front.

If your points are clean . it has to be the coil or condenser. Guess that went without saying. Well, throw a bad plug in the mix too.

bdtsr 12-28-2003 09:11 PM

RE: Engine size
 
Take the muffler off and look inside. 1 ring=35cc, 2rings=40cc. They are the same on the outside.

Flypaper 2 12-28-2003 11:07 PM

RE: Engine size
 
Looks like a very old 35 with that prop hub. Not sure but I don't think the 42 had points. Set the points at .015 thou. Coil clearance is .010. Clean the points. Should swing a 18-8 around 72 to 7500. If it runs higher than that it's a 42 which normally runs an 18-10. Have fun.

bdtsr 12-29-2003 10:24 AM

RE: Engine size
 
The early 40cc has points, I have one and looks the same as a 35cc. The 42 is a later engine with a cdi as did the later 40 which has one ring.

Skygopher 12-29-2003 07:59 PM

RE: Engine size
 
Thanks for all the help. Will start digging into it. I am planning on putting it on a 1/4 scale Sig clipped wing Cub. Should power it like scale.:D:D

bdtsr 12-29-2003 09:32 PM

RE: Engine size
 
A G23 would be more scale as far as power. My friend has a Sig clipped wing cub with a G38 and it's over powered. If you keep the throttle back, it will then be very scale sounding as well.


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