Overheating YS 1.10
03-07-2004 | 06:28 PM
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From: BexhillNSW, AUSTRALIA
Overheating YS 1.10
Hi,
I have a YS 1.10 with a Hatori pipe mounted in a Swallow pattern plane. I'm running the new low viscosity Coolpower oil 22% with 20% nitro, and a 15x8 APC prop. The ambient temp was about 35 degrees Centigrade.
The engine seems to overheat, both at idle on the ground and in flight. I noticed it losing power on the last flight.
I decided to try to run it without the cowl to see if that improved the problem. The engine then promptly detonated and threw the spinner.
Do I need to strip the engine to check for damage? How would I recognize heat damage? Any idea's for a fix?
Steve
I have a YS 1.10 with a Hatori pipe mounted in a Swallow pattern plane. I'm running the new low viscosity Coolpower oil 22% with 20% nitro, and a 15x8 APC prop. The ambient temp was about 35 degrees Centigrade.
The engine seems to overheat, both at idle on the ground and in flight. I noticed it losing power on the last flight.
I decided to try to run it without the cowl to see if that improved the problem. The engine then promptly detonated and threw the spinner.
Do I need to strip the engine to check for damage? How would I recognize heat damage? Any idea's for a fix?
Steve
03-08-2004 | 10:37 AM
#2
Senior Member
RE: Overheating YS 1.10
At 35C I would have lowered either the prop load or the nitro or both.
Does the engine still have good compression? If it doesn't, you have likely damaged the ring or valves. Hard to say without looking at it. But if the compression is still good, it's probably OK.
Let me know, OK?
Does the engine still have good compression? If it doesn't, you have likely damaged the ring or valves. Hard to say without looking at it. But if the compression is still good, it's probably OK.
Let me know, OK?
