Ken and Ed did you guys determine the exact part number for
the inner teflon encapsulated coolant O-rings? Perry has decided
to use those and I need to order them from McMaster Carr and get
them to John at Mazdatrix.

Paul Lamar
__________________________________________________________________
Paul,
We are still looking for the outer coolant oring and the inner oil
control oring.  Here are the 'good' numbers:

 1.  Inner coolant oring
     part # = 9319K239
     asa568a-175
     qty = 4,  price = $9.94 each

 2.  Outer oil control oring
     part # = 9319K221
     asa568a-158
     qty = 4,  price = $7.17 each


I took these measurements a few weeks ago and came up with the
following:
1.  Inner coolant oring - part # 9319k239 ASA 568a dash 175 (just
    for the record I think you originally identified these):
    circumference  = 28.625
    diameter       =  9.111
    slot depth     =  0.062
    slot width     =  0.141
    McMaster-Carr # = 9319K239

2.  outer coolant oring - no part number for this that I could
    find
    diameter       = 11.340
    slot depth     =  0.062
    slot width     =  0.110


I measured the oil control o-rings 2 different ways.  First, I
measured the metal scrapers with my digital calipers.  Secondly,
I cut an o ring and measured its length to obtain the
circumference and divided by pi to get the diameter.  I also
got the sectional values by measuring the orings.

3.  Inner oil control oring -
    outside diameter of scraper ring = 4.559
    depth of scraper slot            = 0.097
(Note that I could not measure the inside dia of the inner oil
control so I had to calculate it.)
    Total thickness of oring / slot = 0.097 * 2 = .194
    Inside diameter of scraper ring = 4.559 - .194 = 4.365
    Circumference of Mazda oring = 13.75
    Dia. of Mazda oring = 4.377
    section thickness of Mazda oring = 0.103 high by 0.134 deep

4.  Outer oil control oring -
    outside diameter of scraper ring =  4.995
    depth of scraper slot             =  0.080
    Total thickness of oring / slot = 0.08 * 2 = .160
    Inside diameter of scraper ring = 4.995 - .160 = 4.835
    Circumference of Mazda oring = 15"
    Dia. of mazda oring = 4.775
    section thickness of Mazda oring = 0.105 (shape is round)
    McMaster-Carr # = 9319k221
    ASA568A-158

Ken Powell

Thanks Ken.

Paul Lamar
 
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