George,

 

Stretching on boards would only make them bigger.  One dim. was already 1/4" too big to start with.  It is nearly impossible to shrink them without cutting and splicing.  Anyway, I got it confirmed that the correct dia is 11.190 (I used 11.210" on my first engine and they fit great).  Now to get my order placed and move on.

 

BTW.. regarding cleaning rotors, someone asked if oven cleaner would work.  Yes it does!  I tried it and it worked great!  I used two different brands (with different chemical compounds) and both worked like a champ.  It took a few applications to get through the really thick stuff, and I suggest you protect the bearings, but this worked better than using Coastal Power Clean as I did when cleaning up my first engine.  Using oven cleaner, I got all three rotors cleaned up in a couple of hours time.   Just don't breath the fumes, get it on your skin, or in your eyes!

 

Mark S.

 

 

On Fri, Nov 6, 2009 at 1:01 AM, George Lendich <lendich@aanet.com.au> wrote:

Mark,

I believe Pl was advised of these proper measurements, but ignored them. It may be he refused to believe that he was wrong. Sure as hell beats stretching them on a board, the right size pops directly into place. The beauty of fractional fittings.

George (down under)

George,

 

My research and measurments confirm these dimensions.  Thanks for the info.

 

Mark 

On Thu, Nov 5, 2009 at 6:59 PM, George Lendich <lendich@aanet.com.au> wrote:

 

 Mark,

Kelly Troyer, sent some end housings to Jeff Chrysler of Creavey, to make absolutely sure of sizing. Jeff promised me that he would hold a record of the proper size for all Mazda Rotary requests.

 

The sizes ID by Jeff where as you have stated.for the oil seals - and  Coolant seals are

PFA-Sil   0.093 section 11.190  inch ID

PFA-Sil   0.093 section   8.950 inch ID

HTH

George (down under)

 

 

Paul,

 

I'm sending this to you "private" so as not to confuse everyone with a bunch of dimensions that may, or may not, turn out to be correct.  I spoke with Jeff today thinking that he would be able to verify the correct sizes and he doesn't have those dimensions.

 

Looking through my archives, I found an old email stating that I initially used the 11.340" dimension, but it turned out to be too large and I had to send it back to have it re-sized to 11.230" which worked perfectly (didn't require stretching) and laid in the groove very nicely.

 

<snip>

I found my receipt from Creavy Seal Co.  Unfortunately, it is only for one coolant seal, and both oil seals. 

 

As for the outer coolant seal… Originally I ordered a set of SIL .093 – 11.340 ID o-rings.  These proved to be too big and I had to send them back.  Note that 11.340 minus .090 is 11.230… the correct size.  I had given them a size based on CL, not ID.  So, be sure you’re on the same page when ordering these things.  After a few emails to Jeff Chrysler, we got it right on the re-order with these numbers… SIL .093 – 11.230. These fit perfectly.  I can find no records for what I ordered on the inner coolant seals.  Here is an email I sent to Jeff Chrysler at Creavy Seal after fit-checking the new outer coolant o-rings.

 

Attn:  Jeff Chrysler

 

Hi Jeff,

The reworked TES o-rings fit perfect.  Final dimension for the outer coolant o-rings is .093 x 11.230" ID.  Thank you so much for all your help.  I can start putting my engine back together now.  I have passed this information along to Paul Lamar as well.  This size should work for all 13B and 20B engines, but you may want to verify size before using it for the new Renesis engines. 

 

Thanks again for your assistance,

Mark Steitle

 

The information for the two oil seals are SIL .093 – 4.680 ID, and SIL .118 – 4.330 ID.

<snip>

 

Using your example of how to measure and calculate the coolant o-ring dimensions, I ran the numbers and came up with 11.182" for the outer coolant o-ring.  Based on this info, I order based on the 11.230" dimension for the outer o-ring.  I'll let you know how it works out.

 

All of the other dims agree with my numbers.

 

Thanks,

Mark