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First Rotary Engine Tear Down (56K Beware)

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Old Mar 21, 2007 | 11:44 PM
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First Rotary Engine Tear Down (56K Beware)

Well today i got my cherry popped 3 times. We tore down 1 12A engine, and two 13B engines.

12A was in my boys first gen, was leaking oil

13B was in my old 88SE car which for some odd reason wound up back into myhands after 5 years (Small world). I think it had a coolant leak

13B in my 89 GTU that i sold, the engine was seized due to a thrustwasher disintergration.

First we started with the 12a, i was helping here and there with the parts etc. I took pics of the tear down step by step for a future write up.

The 13B from my old 88, i didnt take any pictures of it, was actually getting more hands on.

The second and more messed up 13B from the 89 GTU was done 100% by me, took me a lil bit longer than the other guys, but i did okay. Till i hite one major issue, the thrust washer where the front cover is located was DISINTERGRATED. So i decided to finish it off another day.

Here are some pics enjoy

PREPARATION











12A Tear Down















CUSTOM MADE ENGINE STAND



In Peices



Jason NYC
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Old Mar 21, 2007 | 11:53 PM
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Sweet! My first 12a teardown ended up with losing pieces of the motor in a flood. Like Wrath of god..50 year flood. It was the motor or my car. I chose to move my car instead.
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Old Mar 21, 2007 | 11:57 PM
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^ lol . Yeah some corner seals and springs were lost lol

Here is the engine i did. This is the one with the messed up thrust plate/washer thingy.







BREAK TIME









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Old Mar 21, 2007 | 11:59 PM
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More













Trying to get the seized washer/plate off



Jason NYC
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Old Mar 22, 2007 | 12:03 AM
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is that a cigaweed i see there?
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Old Mar 22, 2007 | 12:14 AM
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^^ haha i didnt even notice, thats a regular cigarette lol hehe (DoH!)
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Old Mar 22, 2007 | 12:28 AM
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im tearin my engine down too. i pulled it yesterday, and took the acc off today. im kinda stuck for the day cuz i need a breaker bar to take that freakin huge nut under the clutch plate.. cant find my breaker bar anywhere..
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Old Mar 22, 2007 | 12:32 AM
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lol I'm a Queens cop. I'll see you in 30 minutes! LOL! isn't it fun tearing 'em down. I wish I had a garage I'd pull 'em apart and rebuild 'em all day if I could.
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Old Mar 22, 2007 | 12:59 AM
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good thing we have a air compressor and impact guns etc =)

We did some by hand, and some with the air tools. All good fun
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Old Mar 22, 2007 | 01:58 AM
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Nice thrust plate!
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Old Mar 22, 2007 | 08:04 AM
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**** was rocked beyond belief, today i have to see if i can finish taking the seized plate off the shaft so i can finish taking off the housing/irons.

IF this was the only messed up part, is the entire engine rebuildable? I guess i have to measure everything against the factory specs.

More pics here.

http://s155.photobucket.com/albums/s...ROTARYROCKET6/

Thanks

Jason NYC
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Old Mar 22, 2007 | 08:16 AM
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This is one thing i never knew about, and never heard anyone mention. The size of the spark plug holes are different.

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Old Mar 22, 2007 | 10:19 AM
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hey, got questions
How did you make that Engine Stand adaptor?
and how would you remove a front eshaft bolt that the flywheel and nut has been removed?

nice pics, keepem comming
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Old Mar 22, 2007 | 10:20 AM
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its not a cigaweed eh?

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Old Mar 22, 2007 | 11:02 AM
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looks like someone got caught, good job with the engine building looks like fun.
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Old Mar 22, 2007 | 11:05 AM
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those are probably just old christmas ornaments laying aruond...ha
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Old Mar 22, 2007 | 11:37 AM
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LoL! I thought you guys looked high in the pics. Someones smoking ditchweed. Upgrade to the Hydro bro!

I like the poster in the background.

Last edited by Juiceh; Mar 22, 2007 at 11:46 AM.
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Old Mar 22, 2007 | 11:37 AM
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Maybe they like to cook. Oregano? I noticed some rolls or something in the fridge. Maybe they are gonna make some sammiches
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Old Mar 22, 2007 | 01:36 PM
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nice work jason... cant wait for the first meet.
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Old Mar 22, 2007 | 02:48 PM
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Originally Posted by SpooledupRacing
its not a cigaweed eh?


i dont see no cigaweed lol heheh (DELETE)
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Old Mar 22, 2007 | 03:54 PM
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Originally Posted by MrFC3S
hey, got questions
How did you make that Engine Stand adaptor?
and how would you remove a front eshaft bolt that the flywheel and nut has been removed?

nice pics, keepem comming

charlie, the big black guy who owns the rotary BMW, made it for the harbor freight engine stand. Dunno how he did it to be honest

We took the front eshaft bolt off with the aircompressor set on high. The thermopellet and spring unscrewed itself out thats how fast it was turning, since we had the big aircompressor set on high.



Jason NYC
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Old Mar 22, 2007 | 05:55 PM
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thanks bro, if you can, get me some contact with him, im going to HF to get a stand which is much needed.

I tried to do it with an Electric impact but it didnt work...
now ive got a 21gal 5hp
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Old Mar 22, 2007 | 06:59 PM
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This is also how I prepare for a nice day of working on cars/engines
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Old Mar 22, 2007 | 08:16 PM
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oh ^^ that i already know G-man lol.

MrFC3S: Hit me up on aim, and ill let him know that you are interested kk.

Jason NYC
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Old Mar 22, 2007 | 09:10 PM
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my only question to the above pic is why is there a knife, spatula and sandwich baggies in the fridge???
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