rmaiersg

What causes an apex seal to hop in the housing? I forgot what it was called but what conditions cause such a situation?

UniqueTII

I believe weak or broken springs cause that, or at least help cause it.

1Revvin7

You mean chatter marks on the housing? No one realy knows, some say improper break in, some say to high rpms, ect.

j9fd3s

also if the seal doesnt have enough lubrication

John415

This is what happened to my friend's s4 when he pushed it too hard while cold. He held about 5k for 10 or 20 seconds at WOT, This was afterward.

rmaiersg

Hmmm chatter marks?





Do the chatter marks make a lot of noise? I assume that the housing must be replaced. I'm starting to worry that that may be a problem with my car. I haven't driven my car in a few months and only started it in once since then. I'm just thinking of worst case scenarios.

j9fd3s

i havent noticed any noise from chatter marks, they do make noise if you dont have enough metering oil though

banzaitoyota

my Pineapple had Chatter marks and I didn't hear anything

RETed

Inadequate apex seal lubrication, excessive heat, detonation, stupid deposits from combustion by-products, etc.





-Ted

rmaiersg

I guess it's not that then. I use premix and i have plenty of it in there. I've been getting a humming noise lately. The last time i started it it was pretty loud but i just let it idle.



I guess I'll have to wait until spring break to examine the problem a little further.