Airsal T6 Detonation

[Areomyst]

Do you have any idea of the max. temp. of the cylinder? When air cooled cylinders reach the 190 degrees (Celcius ofcourse) it's getting very critical, with detonation as a consequence.

If you're squish is 0,6+mm then this is not the problem. The only reason I can think of is a very lean mixture with the consequense of an too high temperature through which the mixture will explode before the spark. Or you're carb-jet is too small, or you should check voor 'false air'?

I think that Adas and you are dead on with the air leak/lean mixture, but if it was leaking it was only doing so when the engine was hot. After looking at all of the other options, a leak or lean running could really be the only thing left. Don't know where the leak was, I couldn't find any... problem is solved now regardless. Thanks for all the great suggestions and comments friends!

 

[adas]

I think that Adas and you are dead on with the air leak/lean mixture, but if it was leaking it was only doing so when the engine was hot. After looking at all of the other options, a leak or lean running could really be the only thing left. Don't know where the leak was, I couldn't find any... problem is solved now regardless. Thanks for all the great suggestions and comments friends!

Aloha, shudda had an EGT guage (like I always say). The EGT would have spotted the lean mixture in a second and avoided the meltdown.

 

[Areomyst]

Aloha, shudda had an EGT guage (like I always say). The EGT would have spotted the lean mixture in a second and avoided the meltdown.

Got any links to a good/inexpensive one?

 

[StepVino]

This is where I got my CHT gauge. Cheapest prices
I found:

http://airstuff.com/eshop/10Browse.asp

 

[Big B NRG]

Mount about 10cm from the start of the flange, so you get accurate readings.

 

[adas]

This is where I got my CHT gauge. Cheapest prices
I found:

http://airstuff.com/eshop/10Browse.asp

Aloha, I bot mine elsewhere, but I need another. Did your link above include the senders for $66.00 combo 2" EGT/CHT?
thanks frank

 

[StepVino]

Aloha, I bot mine elsewhere, but I need another. Did your link above include the senders for $66.00 combo 2" EGT/CHT?
thanks frank

Hi adas, I bought the CHT, and it came with a sender. I think the
combo gauge comes with senders too, but you can call to check
just in case.

My sender broke after a month though, right at the ring crimp.
Best to order extra.

 

[adas]

Hi adas, I bought the CHT, and it came with a sender. I think the
combo gauge comes with senders too, but you can call to check
just in case.

My sender broke after a month though, right at the ring crimp.
Best to order extra.

I think you can use an ordinary electrical connector to replace it.
frank