mcculloch 28 info
08-17-2003, 10:48 AM
#1
mcculloch 28 info
Hi,
Just got a McCulloch 28cc (I think) from a guy, never been run, but I have no info on it. Also never had a petrol engine before.
What plug suits? also what fuel /oil mix ?
Seems that a 18x8 prop is normal ?
On the coil there is a spade terminal, also an engine ground, would I be right saying you ground the coil to stop the engine ?
Just got a McCulloch 28cc (I think) from a guy, never been run, but I have no info on it. Also never had a petrol engine before.
What plug suits? also what fuel /oil mix ?
Seems that a 18x8 prop is normal ?
On the coil there is a spade terminal, also an engine ground, would I be right saying you ground the coil to stop the engine ?
08-17-2003, 10:21 PM
#2
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Some suggestions....
First, use a resistor plug, that is, one whose part number begins in "R" is a resistor plug. I wouldn't be surprised if the plug in the engine is a resistor plug, most are.
Secondly, 87 octane is fine, I mix 32:1 in a gallon (4 oz. to a US gallon). I don't know what that translates to in a liter, but you get the idea. Use a quality two stroke oil. If you can find Klotz Modelube or Techniplate, use them.
Thirdly, if you can find a Walbro 167-A carb, you will get 1000 rpm more from the engine. The stock carb typcially is very small and will keep you down on power.
Forth, the McCulloch will happily turn anything from a 15X8, 16X8, 18X8, even a 20X6. They are very torquey.
Finally, yes, you ground the coil to stop the engine. Install a on/off toggle switch. Keep the toggle switch at the firewall, use a nyrod or nylon pushrod for the throttle pushrod, and keep all radio components a foot away from the firewall.
Happy landings,
GPB (an Irishman from Texas
)
Secondly, 87 octane is fine, I mix 32:1 in a gallon (4 oz. to a US gallon). I don't know what that translates to in a liter, but you get the idea. Use a quality two stroke oil. If you can find Klotz Modelube or Techniplate, use them.
Thirdly, if you can find a Walbro 167-A carb, you will get 1000 rpm more from the engine. The stock carb typcially is very small and will keep you down on power.
Forth, the McCulloch will happily turn anything from a 15X8, 16X8, 18X8, even a 20X6. They are very torquey.
Finally, yes, you ground the coil to stop the engine. Install a on/off toggle switch. Keep the toggle switch at the firewall, use a nyrod or nylon pushrod for the throttle pushrod, and keep all radio components a foot away from the firewall.
Happy landings,
GPB (an Irishman from Texas
)
08-17-2003, 11:37 PM
#4
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Measure the Venturi....
It should approach 3/8" to 1/2" in diameter, again depending on metric conversion. As for spark plugs, the plugs I put in my production engines are Champion RCJ6Y's.
