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Kelly,
I used Permatex No. 474G valve grinding
compound. It does not tell what grit it is. I noticed that the grit
becomes very fine after about a half hour of use. At first I added some
grinding compound every half hour. To finish I did not add any compound
for about one hour, so only the very fine grit is used for finishing. It
seems to have worked. I would say that it rotated for about 4 hours in all
for two side housings.
Yes it is a soft wood plug inside the iron but next
time I will use hard wood or metal. By the time the job was finished the
wooden plug was very loose, ready to fall off.
Rino Lacombe
----- Original Message -----
Sent: Sunday, December 20, 2009 10:00
PM
Subject: [FlyRotary] Lapping
Housings
Rino,
Great photo..........I am getting ready to do same to
my housings..........Two questions
come to my mind..........(1) What grit of lapping compound did you use
(and approx how
much time per side) and (2) Is that a wooden plug the bearing is riding
in ?.............
--
Kelly Troyer
"Dyke Delta"_13B
ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold
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