Finally got time to pull and dissassemble my broken S5 13B. Turns out the front iron cracked at the dowel pin; as epected. No known cause, the car was well taken care of during the little bit of break-in it got.

Engine internals looked fine; broke a few side-seals; apex's are like-new, other than being dirty.

6-8" oil gyser coming from engine = new housing time.

 

hmmm... at the dowel pin?? Time to double check the torque wrench calibrations.

 

...I'm confident it was due to neglectful handling of my front iron by the rotary mecahnic who did my porting...and a pretty substandard port job at that...

 

and who did you use?

 

Eh; that's unimportant. I have no proof to base my claims of mishandling on. When I asked earlier, that was the most likely cause of the housing cracking; and neither myself, or the 1 person I had helping me rebuild the engine so much as scuffed a housing. <shrug>

As per who did the porting; it was the Rotary Doctor of Neosho, MO. I'll try and post pictures of the work preformed in the next day or so.

 

Yes do post the port pix please.