So, I'm curious to know what are the pros/cons of having or not having these in the engine. All I seem to be able to find is that you lose a little compression. I ask this because the last time my motor was built, these plugs were installed. the motor had to be pulled about 1500 miles later for a cracked plate, and was then discovered that these plugs were "catching" a little on the apex seals. I don't think the plugs are gonna be put back in. So my question...is there THAT much of a difference with or without the plugs?

 

WTF???


-Ted

 

Please remove what is in your sig JaVeN. It is not appreciated by some of the people you insinuate in it.

 

I honestly think people lose their sense of humor as they get older. Did nobody read the thread that my sig came from?

corner seal plugs? anybody?

 

Maybe it would've helped that the link you had in there was valid, but clicking it went to an invalid page.
So whatever intention you had with your .sig leaves people hanging on what your intentions are.
Joke or not, it's bad taste.


-Ted

 

^fine fine...it worked last week, maybe that thread was deleted since then?
Anyway, whatever...I'll change it. (but it was funny)

Soooo...corner seal plugs? Important? Not so important?

 

I, personally, replace them with new ones.
Others will argue they do very little and are not needed.
At $2.xx per from the Mazda dealer, ~$25 worth of rubber seals isn't going to break the rebuild budget.


-Ted

 

When you don't run the corner seal plugs it will cause the engine to start a little slower than with the plugs. What it does is drops compression ratio down a bit. It technically won't hurt the engine, but I definately advise running the plugs if you want the best compression.

Bryan@BNR

 

Have you looked at the one-piece style... Maybe it's just Atkins that offers them?

They're supposed to be better for high-boost apps. and they won't "blow-out", like I guess some of the stock rubber-sealed, corner-seals do. Although I've never personally seen any rubber pieces missing upon cracking the motor open.

 

The majority of the time those things "blow out" is due to increasing opening timing on the intake port.
Those rubber plugs tend to fall into the intake port if you don't port carefully.

I've have never lost any of those rubber plugs (unless engine failed due to detonation) due to my porting technique (keep overlap minimized).


-Ted