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Don, the big and small tube they are probably referring to is the oil
fill tube and dipstick tube on the center iron housing. (They are pressed in, I
have taken them out, but never put them back in)
There used to be a guy there very familar with lapping for a rotary
by name of "Bob". But, I understand he has since retired.
They used to charge around $135 for lapping all 4 surfaces, don't
know what it might be now. You might try checking with Bruce T and see if
he still uses their services.
----- Original Message -----
Sent: Tuesday, December 02, 2003 5:20
PM
Subject: [FlyRotary] Question on Lapping
Housings
Has anyone used the lapping services of Lapp Tech (they said that Bruce
T.) has used them in the past. The guy I talked with on the phone wasn't
overly familiar with the 13B except for the fact that could do the job
and had done so in the past for Bruce. He said I would need to remove a
large and a small tube but he couldn't describe in very much
detail on which housing they resided, etc. My questions therefore
are:
1. What is the current concensus on getting housing lapped to
.003? My wear is only .002 and it seems some on the list have ignored
this amount and simply rebuilt it as it.
2. What tubes (water pipes I'd assume) need to be removed inorder
for a company to lapp them?
3. Are there any companies out there known that will re-nitride the
housings or is this a mute point if only shaving .003?
Thanks for any information.
Doug Lomheim
RV-9A; 13B overhaul in progress
OK City, OK
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