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-   2nd Generation Specific (1986-1992) (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/)
-   -   Oil control ring or blown turbo? (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/oil-control-ring-blown-turbo-994613/)

AGreen 04-24-12 07:24 PM

What?

How did you break the rear iron?

198713bt 04-24-12 08:32 PM

Are you reusing all of the soft seals? Just curious as I just finished my engine build and I'm dreading something like this. Good luck!

matt87FC 04-28-12 10:35 AM

198713btFor the soft seals i did re-use them for the second rebuild as they only had 1 hour run time. The inner coolant jacket seal was perfect but the outter one was stretched and I had to cut it and butt tthe ends back together and used a silicon sealer to hold them together. Not the best fix or am i condoning this in any way, but it did work for me THIS TIME.

AGreen-I couldn't get the rear iron off for some reason and was tapping it with a brass hammer, turns out I simply had left the flywheel key in. (Don't judge me I already feel stupid enough as it is...lol) i guess the ccasting was just THAT brittle and it broke a chunk off.

Anyways I got the rear s5 iron off a guy I know and threw it back on there, got the engine in finally and started her up, at first it looked all good then here comes the smoke show! I was so mad I literally listed the car up for part out. Haha

That night my buddy offered me an awesome deal on a jdm s4 t2. Picked it up the next morning, ripped out my worthless other motor and exchanged all the manifolds and turbo to the jdm engine, got that one in and she started up first crank after sitting for probably 5 months. It wont hold idle and I need to fix my tps wires as one broke, but atleast it runs. I have a little smoke coming from exhaust but I will see if that goes away after i run it a bit. Also have a water leak on coolant line to the turbo (I just need a proper gasket to the LIM), but no oil coming from that area so the turbo was good after all.

As far as the old motor goes, everything internally is in perfect shape and I put the oil control rings in the correct way the second time so I am not sure why it was still spitting oil. So I am parting that out if anyone is interested. Lol. (Reman housings, s4 t2 front and mid iron, s5 t2 rear iron.) Also have a bunch of jdm parts now too, since i only used the jdm keg.

Mr.JTurboII 04-28-12 10:49 AM

im not 100% sure, but i dont think you can mis match the irons, maybe that might be the problem

matt87FC 04-28-12 12:24 PM

I'm nearly sure that you can. You CANNOT mismatch rotor housings though. Either way the problem was there when the irons were all from the same engine and still there when i had the s5 rear iron in.


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