Increasing #3 CHT

[UnPossible]

Hey - after a year or so of tinkering, I have my 10 cooling pretty well and have a pretty good balance of CHTs, with the exception of my #3 cylinder. Flying to breakfast yesterday, 1,2,4,5,&6 cylinders were all within 10 degrees, however, #3 was about 30 degrees cooler than all of the others. I should note that I have tweaked all my injectors so all cylinders peak within 0.2 gallons/hr.

I'd love to hear any suggestions (or even better pictures) as to the best way to steal a little cooling air from #3 to balance the temps even better.

Thanks,
Jason

 

[bjdecker]

Jason,

What are the CHT's in absolute terms? How do they move with various power (RPM, Mixture, Fuel Flow) settings?

Cheers.

Brian

 

[Kyle Boatright]

Hey - after a year or so of tinkering, I have my 10 cooling pretty well and have a pretty good balance of CHTs, with the exception of my #3 cylinder. Flying to breakfast yesterday, 1,2,4,5,&6 cylinders were all within 10 degrees, however, #3 was about 30 degrees cooler than all of the others. I should note that I have tweaked all my injectors so all cylinders peak within 0.2 gallons/hr.

I'd love to hear any suggestions (or even better pictures) as to the best way to steal a little cooling air from #3 to balance the temps even better.

Thanks,
Jason

I have the same issue. The only "fix" I can come up with is to close off the inter-cylinder baffles slightly around the bottom of the cylinder. Maybe I'll get around to that one day...

 

[UnPossible]

Jason,

What are the CHT's in absolute terms? How do they move with various power (RPM, Mixture, Fuel Flow) settings?

Cheers.

Brian

If I remember right, I was right around 23.5 squared LOP, and 1,2,4,5, &6 were between 360 and 370, with #3 around 335