Quote Originally Posted by Dan L View Post
I installed a vernatherm on my O340 a few hundred hours ago. For a while it would hold the oil temp at 165-175. Now it is about 155 maximum. I suspect that wear or debris is letting some oil get by and into the cooler. And this is with 50% of the cooler blocked off.

I am working on a sliding shutter to go in front of the cooler. And it'll be operated by a push/pull cable next to the carb heat cable on the panel. It is mostly done and I'll post pictures and offer a performance report when I've used it a bit.

If others are interested I've got it in SolidWorks and have .pdf drawings.
I was picturing something like that. Well, almost exactly that... One could adjust accordingly to get the temp they are looking for.