Rebuilding engine

speedjunkie · 01-24-2011, 02:24 AM

I took the engine to my buddy Matt's house in Denver today. We actually got the front bolt off fairly easy, then the flywheel nut gave us a hard time but that came off not long after too.

Wow, this is going to be an expensive build.
-The bearing in the rear gear is completely shot (which I guess explains why the rear housing was filled with oil). More accurately, the engine tried to shit it out the back lol. And because of that...
-...the e-shaft is a little eaten up in that area as well (I got a replacement from Matt for $20).
-The rotor bearings are decent but I might replace them anyway.
-The front and rear irons are toast, groooved up beyond reuse.
-The center iron is still well within specs.
-The housings look OK but I still need to spec them. There is the usual scorching at the spark plug ports and there are slight chatter marks all the way around but they're still in decent shape. I still need to inspect them better though.
-The rotors are in still in good shape. I broke one side seal on the rear rotor, I guess it welded itself into the rotor, and I believe that explains why it sounded like a side seal was bad. These rotors were practically brand new when I built this engine in 08. They had only been run in a reman to break in the engine.
-The apex seals were in great shape, not a single problem that I could see. I might still switch to RA seals, not sure.
-Some of the corner seals were ground down a bit. These are Atkins solid corner seals and the lip on some of them were ground down a bit, that's what I mean.

The front and rear irons are the ones I had sent to Mazdatrix to get resurfaced but I did not nitride them afterwards. Would this be enough to make them wear so much faster than the center iron?

I'll post some pics tomorrow, I gotta get to bed for work tomorrow.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

01-24-2011, 02:24 AM	#11
speedjunkie RCC Loves Me Not You Join Date: Mar 2008 Location: Colorado Springs, CO Posts: 2,089 Rep Power: 20	I took the engine to my buddy Matt's house in Denver today. We actually got the front bolt off fairly easy, then the flywheel nut gave us a hard time but that came off not long after too. Wow, this is going to be an expensive build. -The bearing in the rear gear is completely shot (which I guess explains why the rear housing was filled with oil). More accurately, the engine tried to shit it out the back lol. And because of that... -...the e-shaft is a little eaten up in that area as well (I got a replacement from Matt for $20). -The rotor bearings are decent but I might replace them anyway. -The front and rear irons are toast, groooved up beyond reuse. -The center iron is still well within specs. -The housings look OK but I still need to spec them. There is the usual scorching at the spark plug ports and there are slight chatter marks all the way around but they're still in decent shape. I still need to inspect them better though. -The rotors are in still in good shape. I broke one side seal on the rear rotor, I guess it welded itself into the rotor, and I believe that explains why it sounded like a side seal was bad. These rotors were practically brand new when I built this engine in 08. They had only been run in a reman to break in the engine. -The apex seals were in great shape, not a single problem that I could see. I might still switch to RA seals, not sure. -Some of the corner seals were ground down a bit. These are Atkins solid corner seals and the lip on some of them were ground down a bit, that's what I mean. The front and rear irons are the ones I had sent to Mazdatrix to get resurfaced but I did not nitride them afterwards. Would this be enough to make them wear so much faster than the center iron? I'll post some pics tomorrow, I gotta get to bed for work tomorrow.