I have a rx8 that we install new water seal for any reason one of them has a small leak. In the piston engine their is a several products for that did you know any that work on rotary engines?

 

blue devil actually works quite well and doesn't leave a mess in the cooling system like other products. i've also confirmed that it works on the rx8 where other things like alumaseal failed miserably.

course everyone is going to say to redo it right, but it is an RX8 and they likely have never owned the headache that is the renesis 13B-MSP.

you do not want the pour and go stuff but the flush, flush and refill type:

https://www.oreillyauto.com/detail/b...ufacturer=true

 

Thanks I will try the product. I let you know if works.

 

Its probably got a cracked or collapsed water jacket. Did you get your housings/irons machined when you had it apart?

 

np, you can also drain and save the product for future treatments, i never had to redo the RX8 that needed it since the engine crapped out due to wear before the reseal broke free.

 

the rx8 doesn't have the older 2nd and 3rd gen issues with coolant seals. their coolant seals are placed in the rotor housings like the pre 1986 engines, which rarely had coolant seal failures. the renesis can blow out the coolant seals due to even the slightest gap between the rotor housing and irons though since they are such high compression and tighter tolerance engines. overheating cooks the seals just like any rotary, but even less chance of survival from even 1 overheat on moderately worn components.

most likely the seal got pinched during installation or the rotor housings have too much thickness variation causing gaps in the compression area of the engine(left center in the picture below surrounding the spark plugs), which is usually where the housings tend to narrow with age. misplacing the coolant seal seam could also cause premature seal failure which is easily possible with a novice builder who isn't familiar with the clocking of the seals, the seams always go just above the intake port at roughly the 1:30 position.

 

Oh didnt read it was an RX8 and didnt know that about the housings. The more you know!