Hello,

I got a 14 Evo X MR with just 26k miles on it, and I brought it new from the dealers way back.

In a recent engine oil change and inspection, they noticed that there are some fresh transmission oil in the TC-SST, and I had the diaqueen replaced (with diaqueen) at a dealer at 10k miles as I heard that initial oil could get gunked up with anything from the break in and was hoping to do the oil at best at 30k miles.

Well, its been 10 solid years since I got the car and the shop (not a dealer this time, but a local well know one Speed Elements in San Jose, California) noticed there is fresh fluids on the transmission, but they are not entirely certain what is causing it, but thinks the gasket in the front cover is the culprit, as the usual place where things may leak the transmission fluid filter was dry and they made sure the drain plug was well tightened (the 10k mile diaqueen change was YEARS ago at this point, so if it was that this thing would be out of fluid by now I think). This is one of the images they gave me and says the cover (at the bottom, the black part) could be the cause of it https://imgur.com/a/RdAvQ4m.

The leak is supposed to be minor as they did not find pools of it in the pan, but just that it is wet, and with 7 L of it I guess it should be okay for a little bit at least.

But the question is, is this a known issue and something they designed around as I have heard that the reason why you had to use diaqueen for the transmission fluid is because they add some gooping compound to the thing and that lets it seal up the system as by design its some how "leaky", now is this part of that process and is just a bit out of the norm, or is the gasket gone?

Also, they mentioned that mitibushi won't sell just the gasket, and I need to buy a whole *** front cover (with the gasket attached at the factory), and that is the best way forward, I know from enough of the sketchy youtube videos you can DIY gaskets with a knife and some lines of gasket but given this is the TCSST and I don't really want to spring for a rebuild, is this the best way to get it replaced.

Then, is there any possibility its something worse that is happening and this is not the actual issue? Or hell, this is as designed and this minor leak is normal and why you use diaqueen with the gooping compound in it so it isn't a major leak and I can keep using it till 30k and then change it then and don't worry about the cover. I honestly thought that gaskets should be fine for much longer if they are not exposed to the elements and all that, but it is a 10 year old rubber (I guess, or synthetic) part so maybe it is just on the way out.

Anyone else has seen anything like this?

Thanks

 

Hi, i got a question. How you guys put the transmission back to the car. Atm, we are struggling to put it back together. Car was on a lift with the engine on it? Have any videos how to put it back?




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You might be able to reach out to SSP or Dodson to see if they use the same seal for their heated sumps, maybe they could sell you just the gasket.