Champagne Test

[onelastpost]

Am I in trouble?

http://www.youtube.com/watch?v=2vKZVCdAkcM

second video from fairly cold: http://www.youtube.com/watch?v=uW5CvFRK_R4

[666FLO]

not working

[onelastpost]

thats it now!

[Ricco_04]

I\'d say so

Get it to Pip\'s (as your closest) as I have heard sometimes you can also warp some of your housings which could have been re-used, not sure how true this is?

[onelastpost]

I have done about 600 miles on a rebuild! Not a rebuild technically, an engine with a guaranteed 20k on it.

The engine came with a 6 month warranty, would that include the o seals?

My brothers are coming over this weekend as well, balls! - no rex to play with!

[Grizzly]

Not good that mate, Give your Engine builder a cal and get them to have a look.

[Cally]

what should it do when u run it with no cap on?

[PETE SMITH]

Just what i thought!!:2eek

[Smifta]

The water level should rise - due to heat expansion. But it shouldn\'t bubble like that, that usually means exhaust gasses are getting into the coolant - probably through the coolant seals.

[boyrotor]

A quite common failure on s4 onwards motors is the outer edge of the coolant seal groove on the end/center plates corrodes away and eventually cracks or bits fall off it causing leekage.

Especially common on motors from Japan as coolant/antifreeze is often not used.

Worst thing mazda ever did putting water seals on the plates, should have left them in the alloy housings which are more corrosive resistant. In fact i think they went back to this way in the rx8 but not sure.

[onelastpost]

Will it be ok short term? The car is running perfect!!

[Laeeq]

I will do that check again when the car is cold, first thing in the mornning.  If you did them test with a warmish engine then you will see water rising up quicker then when its cold.  And with the cold engine you will be able to see if there are any bubbles much better.

[onelastpost]

http://www.youtube.com/watch?v=8lTQS9PjAqA

lots of white smoke? Eeeek!!!

[iaint]

From a cold start the engine will pressurise the cooling system - you\'ll see the champers effect with the collent cap off.  This will do a few things - force too much coolant out of the system, filling the expansion tank and overflowing it and also over heat the system (it\'s general ability to cool will be compromised).

When you turn it off and it cools down some coolant is drawn into the engine through the weak seal.  You\'ll get more and more water smoke on startup and eventually the engine will start on only one rotor as one is flooded too much to get spark.  Takes a few seconds of running to sort this out.

You should really rebuild before this point but it\'s only here that you\'ll get really bad reliability risk...

Happened to me 3 years ago

[interloper393]

deffo the coolant seals bud, mind did the exact same.. cost me 4k feel for you m8..