Time between sparks plugs
 

Could any one remind me the time between changing sparkplugs, or your experience in durability for diferent brands.

Thank you

I change them "on condition", that is, not at a set time but when their performance and appearance suggests a change. Typically, I inspect all plugs when the annual is done, since they come out for the compression check.

I would guess that they have been lasting about 500 hrs, but this is just a guess. It also depends on how you run your engine and probably whether it's a turbo or not. My experience is with normally aspirated and running at cruise 50-75 degrees rich of peak EGT, a setting which in my experience keeps the plugs nice and clean.


Saludos,
Ernie

I change our plugs @500 hrs. If they are kept properly gapped
and rotated at regular intervals they should make that with no problem.
Kim

An "erosion gauge", part number CT-482, is available from Champion for use with massive electrode spark plugs.
It will tell you when the plugs should be discarded. Most of us white-haired mechanics can tell by observation.
Bob

Thank your all for your responses.
By the way Ernie, how did Frances in your airport and your airplane.
Saludos,

J.L Ichaso

Jose, see response on another thread, with a graph showing hurricane tack: prediction vs actual.

Ernie