rebuilding a motor, something strange?

sen2two · 02-22-2010, 07:03 PM

I noticed there was slight scar on the rotor housing near the exhaust port. but there was nothing broken in the motor. So as i inspected the rotors, they looked fine also. until i checked the apex seal slot. the tops of them have burrs on almost every edge. I know this isnt normal, cause i havnt noticed this before in other builds i have done.

so would filing the burr off ever so slighty be ok?

what might have caused this?

RETed · 02-24-2010, 07:13 AM

Scars on the rotor housing could be from a chunk of carbon flying around.

Burrs on the apex seal groove?
Some rotors come with machined rotor faces - you'll notice the lines.
This causes the jagged edges on the apex seal grooves...if this is what you're talking about?

-Ted

sen2two · 02-24-2010, 11:29 AM

just to be a little more clear. this is what i mean by burrs on the apex seal slot. The red indicates where the burrs are. They are exagerated a little in the picture i drew.

and yes, these rotors have the lines, so they might be the machined ones. If this is indeed the case. filing the burr off a bad idea?

(im not artist)

02-22-2010, 07:03 PM	#1
sen2two KTEC Join Date: Jan 2009 Posts: 642 Rep Power: 0	rebuilding a motor, something strange? I noticed there was slight scar on the rotor housing near the exhaust port. but there was nothing broken in the motor. So as i inspected the rotors, they looked fine also. until i checked the apex seal slot. the tops of them have burrs on almost every edge. I know this isnt normal, cause i havnt noticed this before in other builds i have done. so would filing the burr off ever so slighty be ok? what might have caused this? __________________ what I have: 1985 Gs:12a All motor Drag car - 1973 Rx2: Play car What I had: 93 Touring: TRADED - 91 Coupe: TRADED - 90 GTU: RHD - 88 10AE: SOLD - 87 Base: SOLD - 86 Base: SOLD - 1985 GSLSE - 85 Gsl: SOLD - 80 Gs: TRADED - 1972 Rx2

02-24-2010, 11:29 AM	#3
sen2two KTEC Join Date: Jan 2009 Posts: 642 Rep Power: 0	just to be a little more clear. this is what i mean by burrs on the apex seal slot. The red indicates where the burrs are. They are exagerated a little in the picture i drew. and yes, these rotors have the lines, so they might be the machined ones. If this is indeed the case. filing the burr off a bad idea? (im not artist) __________________ what I have: 1985 Gs:12a All motor Drag car - 1973 Rx2: Play car What I had: 93 Touring: TRADED - 91 Coupe: TRADED - 90 GTU: RHD - 88 10AE: SOLD - 87 Base: SOLD - 86 Base: SOLD - 1985 GSLSE - 85 Gsl: SOLD - 80 Gs: TRADED - 1972 Rx2