Ok so here is the situation. S5 TII engine, S4 internals that I rebuilt several months ago.

Pressure tested the cooling system (with air, used 1 psi and a pineapple racing tester). Found that I had a leaking coolant seal (could hear air coming out of the intake port).

Tore the engine back down, found 2 coolant seals that got pinched and require replacement.

Now here is my question, this engine had never been started with the new parts so I am wondering what I have to replace and what I can get away with.

I am thinking I need:
Water seal kit (inners and outers)
front cover gasket
teflon o-ring front cover
front cover o-ring

Is there anything else I am missing? Also the apex seals seated into position and the break away portion has done so on all of the seals. I am assuming I can just position them properly when I am piecing it back together again?

Thanks!

 

Heck, just a water seal kit is probably fine. The other o-rings can probably be re-used.

As for the apex seal pieces, you can either take the seals out, clean them up, and re-glue them with CA/super glue.... or you can just position them correctly when you put it back together. up to you.

 

Does the super glue just hold the seal together while you're assembling the engine?

 

It should, the force and heat from the engine firing should be enough to easily knock them back out. Just the breakaway pieces are very tiny and the last thing you want is for one to go MIA when building a motor.

 

Mazda OEM seals come super glued together from the factory for installation ease.. and yeah. as soon as the engine cranks, they break free and what little super-glue burns away.

 

You really only need to replace the damaged parts...


-Ted

 

K perfect thanks guys, just wanted to make sure while I have it all appart.