kapn krunch

so ive got oil leaking from between the front cover and the first rotor housing i let it warm up toady and it was only on for two mins before i saw the 50cent peiced size spot of oil. how screwed is my motor im assuming that im going to have to pul my motor apart to fix this right.

trochoid

iTrader: (6)

Be more specific as to where the leak is. Have you checked the front covers bolts for torque? Fwiw, if the front cover is bolted to the front housing, you're missing part of your engine stack. lol

1badFB

iTrader: (1)

Is there something Im missing here? Is the front cover not attached to the front housing? I thought you could use the term housing for the Irons as well, I guess the proper term is side housing, but I think I understand what he was saying.

Sounds like a dowel pin leak to me, and if so the short answer is yes the engine does need to be removed to fix this.
However there was a writeup about a spray on fix for this not too long ago, and although Im skeptical, it apparently works.
I hope I understand what he was trying to say and arent out of line here.

kapn krunch

so i guess i mean from between the front iron and first rotor housing and its only leaking when its running

1badFB

iTrader: (1)

Sounds like a dowel pin leak,
It sorta pools up in the space above the part where 12A is stamped?

kapn krunch

thats exactly what its doing so where can i get dowel pins for it at?

boyee

iTrader: (3)

rebuild time to properly fix the leak or try lucas heavy duty oil stabilizer

trochoid

iTrader: (6)

Knowing one's parts and being specific makes all the difference. Front cover leaks are reasonably easy and cheap to repair. Dowel pin leaks require a teardown.

Fwiw, the stack is as follows. front cover, front iron, housing #1, center (intermediate) iron, housing #2, rear iron. Dowel pin leaks occur where the #1 housing meets either the front or center irons. It's not the pins themselves that leak, it's the toasted o-rings that used to seal the pins that are leaking.

kapn krunch

it started to overheat{preivous owner had no t-stat in it and didnt infrom me of that} on me like 2 weeks before this happend could that have casued the seal to take a dump due to the heat. is it going to casue more problems if i drive it once in while like this till i get enough for a rebuild?

Naegleria_Fowleri

If you want to fix it properly you will definitely need a rebuild. I had that happen with my spare engine, and you should have saw how bad the seals were that sealed up the cracks you are talking about.

Plus, look on the bright side, the inside of a rotary engine is great looking.

ParadoxRX7

What engine do you have? If you have a 89-up 13b, there may be less of a problem than you think. Mazdatrix has a writeup describing the problem and the fix. Look for Front cover o-ring leak or something along those lines in the FAQ section on Mazdatrix's website. I had this problem, and it's not that difficult to fix. Keep in mind, you may still be looking at a dowel pin leak. It won't cause any damage to drive it as long as you keep oil in it. Keep an eye on that oil pressure guage though. Ultimately, it doeas need to be fixed. If it's leaking now, it is libel to get worse, and you don't want to get syuck on the side of the road because you ran out of oil!

steve84GS TII

Overheating will definatly not help things.
The oil o-rings get brittle with age and heat,they often leak without any overheating of the engine,just time.With just regular time induced leaks,the engine can be torn down and rebuild for little effort/cost.

Excess or repeated overheating will warp the engine housings,which will induce or exacerbate the dowlpin oil leak.Once the housings are warped,much of the engine will be junked,or at the least it will cost much more to rebuild/machine/replace the damaged engine or parts.

If you catch the leak when its small,or just keep oil in the engine at all time,you can get by for a long time with that leak.It sucks and its messy,but itll run and be usable.The fact that the previous owner pulled the T-stat tells me that the engine has been overheating for a while,and its much more likely to be warped/smoked. At this point,its a matter of deciding if you wanna rebuild it now while some engine parts are still usable,or just run it till it pops and get a whole new rebuilt or used junkyard engine.