Michigan Rotary Club

New Members Help and Forum => Lounge => Topic started by: murz on October 03, 2014, 02:15:18 PM

Title: Just some 13b Carnage
Post by: murz on October 03, 2014, 02:15:18 PM
Took apart the engine that came out of ITSWILL's gtu, I knew the front rotor had no compression to begin with, but anyways, I wanted to see the insides, here's some pictures of the carnage. I find it interesting, and I'm curious as to what could have caused this. The irons were all in decent shape, and the rear rotor seals and housing were in OK shape, nothing like the front! The rear stationary bearing is beat up badly as well, but the front stationary bearing isn't at all. Anyways, what do you guys think?

(http://i1295.photobucket.com/albums/b627/marcusoo71/IMG_1484_zps470132bc.jpg) (http://s1295.photobucket.com/user/marcusoo71/media/IMG_1484_zps470132bc.jpg.html) Notice the 3 piece Apex seals, many chunks were missing! All corner seals were badly worn and some cracked. Was not easy extracting the apex seals, as the rotor slots were badly warped and dented.
(http://i1295.photobucket.com/albums/b627/marcusoo71/IMG_1486_zpsbb9f97ef.jpg) (http://s1295.photobucket.com/user/marcusoo71/media/IMG_1486_zpsbb9f97ef.jpg.html)
And here's the front housing, it had some scaring and many very deep gouges in it, I'll measure them eventually.

(http://i1295.photobucket.com/albums/b627/marcusoo71/IMG_1482_zpsf89dabbb.jpg) (http://s1295.photobucket.com/user/marcusoo71/media/IMG_1482_zpsf89dabbb.jpg.html)
Hard to tell from this picture, but there's a perfect sized apex seal dent. And near the top corner seal is some bad grooving.

Anyways, I'm suspecting perhaps the MOP? Maybe not the pump itself, but the oil lines connecting to the front rotor were leaking near the pump. What do you guys think?
Title: Re: Just some 13b Carnage
Post by: ~Groll69~ on October 04, 2014, 12:50:32 PM
That had some serious scarring.  But to be expected, the guy continued to drive on one rotor from what I gathered from ITSWILL.  That motor had a lot of miles on it too and was never rebuilt.  The last time those internals were touch was when some little Asian guy installed them.