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From: "George Lendich" <lendich@optusnet.com.au>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-2812517@logan.com>
Subject: Re: [FlyRotary] Cha Ching: Throwing $$ at problem
Date: Sat, 22 Mar 2008 11:10:51 +1000
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Chris- good news and bad news!

First the good news, new parts will surely solve the potential problem you 
had with coolant leak- I hope!

Now the bad news, breaking through the inlet walls doesn't necessarily make 
the housing unusable. A good welder can easily repair that hole in cast 
steel, I have seen it done regularly.

Keep those parts for another engine.
George ( down under)

> Well, as y'all may remember I got coolant in my rotary housing.  I took 
> off
> the engine from the stern of my Velo and tore it open...with the 
> assistance
> of David Staten.  We opened it and could not find any obvious answer to 
> the
> problem.
>
> Walked away for a couple of days and returned.  Upon further inspection,
> while all was probably fine I did start to notice some flaws in the rotor
> housing (much pitting in the water channels) as well as a couple of dings
> (very small) on the surface of the end housings.  I also re-checked specs
> and everything seemed good......measure after measure after measure.
>
> I was seriously considering replacing the rotor housings due to them not
> looking as good as I would have liked.  While the inner surfaces looked
> really good, the water channels looked worse than some of the junk 
> housings
> we have stored in the hangar.  Hmmmmmmm? However, I didn't want to wait 
> for
> the delivery time since I was about to be off for a few days in a row and 
> I
> could get much work done.  So I figured I would clean and put the engine
> back together with the new  O-rings from Pineapple Racing ands see what
> happens.  Breaking into the engine again after rebuilding it a couple of
> years ago with Dave seemed much less stressful than before as the whole
> project has become much more familiar.
>
> While the engine was apart I decided to go ahead and port out the engine
> more toughly.  Dave had started it a bit before we put it together a 
> couple
> of years ago but was concerned about over porting a trashing the housings.
> As a result he mildly ported the center plate.
>
> I got new porting templates from Pineapple Racing (really nice
> templates....pre-cut and ready to use on intake and exhaust) and went to
> porting.  Got all of 'em done and was just finishing up on the last 
> port(the
> second side of the center plate...the outer plates and rotary housings 
> went
> swell)....you guessed it...I went a little too far on the porting and 
> broke
> though the back. DOH!!!
>
> So, since I kept having nagging questions about the quality of the rotor
> housings, and a couple of minor concerns on the plates...AND since I just
> turned the center plate into a boat anchor, I decided to buy new rotor
> housings in addition to the new center plate.....and since all these other
> pieces are gonna be new, I might as well take the opportunity to replace 
> the
> end housings too.  I kept thinking of the new rotor housing and center
> housing being so smooth and new, with somewhat worn end housing....uh,
> something just didn't seem to gel.
>
> SOOOOOO, I am waiting for my new end housings and rotor housing to arrive
> from Mazdatrix.  I was gonna order from Pineapple Racing (slightly better
> price) in appreciation of their online video's, however, after no less 
> than
> five calls and some conversations, they were unable to get me to the 
> person
> who could/would actually take the order....were going to lunch 
> twice...left
> early for the day twice, never returned any of the calls.  Too bad, I 
> wanted
> to support their internet presence.  Mazdatrix was fast courteous and
> knowledgeable.  So they will be porting out my new parts and if all goes
> well I will get them next week along with new front spacers and thrust
> bearings.  Yeah, it is kinda a chuck of change, but it is my 
> engine...heck,
> I paid more for my Dynon EFIS.  I am really looking forward to the new
> parts.  Maybe they were not needed, but if it gives me a bit more solid an
> engine and some piece of mind...good.
>
> All the best,
>
> Chris
>
> Christopher Barber
> Attorney and Counselor at Law
> 5116 Bissonnet, No 418
> Bellaire, Texas 77401
>
> Serving the Needs of Senior Texans through
> Planning with Purpose
>
> 281-464-LAWS (5297)
> 281-754-4168 Fax
> www.TexasAttorney.net
>
>
>
> --
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