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105 Posts
Discussion Starter · #1 ·
Hi all,

I am a new member from Australia, and have recently bought a 95 Eunos 800M (Millenia S). Last car was a 626 V6 that someone stole, and I got the Eunos for similar $$ as a replacement - and it definitely is not a bad car for AUS$13.5K ($75K when it was new, now THAT is depreciation).

However, it has done 115K kms (72.5K miles) and has (what I read is) the standard Millenia smoking problem - the supercharger seals leaking oil. I read a lot about this on the net and have yet to find anyone who has actually taken any action about finding a solution for it.

From what I've read, everyone seems to listen to their local Mazda dealer who says there's nothing to be done about it except a new supercharger. One Aussie got one for AUS$4K which he reckons was a bargain coz Mazda paid for 1/2 of it...

Come on, that is crazy - it is just a air pump, and made by IHI (isn't it?). So the parts inside it, like the seals and bearings, should be servicable and replaceable - don't you reckon ?

So, before I go out and sell the car - has anyone got any proper concise tech info on the supercharger ? Tech specs, Model Number, Spare parts list, servicing info ? Even confirming the manufacturer's name and the model number of the thing would allow me to contact the manufacturer for some PROPER technical support...

Can anyone help me research this further ? I haven't found anything so far, so even the smallest detail may assist.

Also, what is the chance of finding a genuine Service Manual for the Millenia online somewhere (ie: for free) ?

TIA, JohnC

PS: I've cross-posted this to the Mazda Club Discussion Board[/url]

903 Posts
John, I just saw on someone is selling a supercharger. You might wanna check that out, he will probably hook you up a lot cheaper than a new supercharger would cost you.

1,081 Posts
all I know is my car was smoking bad and I ended up having to get a complete rebuild... he checked the supercharger and said it was fine. that was at 100 k mi.

56 Posts
Here is a related question/answer that I came across on a web site, which may be of some help:

Blue smoke at start-up

QI have about 40,000 miles on my 1996 Mazda Millenia
S, but ever since 18,000 there has been considerable blue
exhaust smoke when the engine is started in the morning.
The tailpipe shows a sooty residue that can be wiped off
with a finger. It seems like an oily black carbon residue.
Gas mileage has dropped by about 15 percent and the
engine has been less peppy. I love the car but this is an
irritating thing to experience each day. The smoke is like
one would expect to see when the valve seals are failing
in a typical engine.

The dealer said it was normal rich gas when starting;
however, I believe that a rich mixture would produce
black smoke, with residue in the tailpipe unlikely. I made
a video of the smoke, but the dealer did not seem very

After repeated complaints, the dealer replaced the
Lysholm compressor under my extended warranty at
30,000 miles. However, that did not solve the problem --
the car still smoked at start-up, especially if started after
sitting a week or two. At 35,000 miles, the dealer
replaced the power module that controls the gas, etc.
Well, the problem still exists, with the heavy blue,
odiferous smoke exiting the tailpipe when the car is
started in the morning.

AIs it oil smoke? Or rich-mixture fuel smoke? That's the
fundamental question. You're right -- oil smoke is normally
bluish, rich fuel-air mixture smoke blackish. But, mix a little bit
of oil with too much fuel and you get a bluish smoke. So the
smoke could be either. If there's no check-engine light or
stored fault codes, first check fuel pressure and fuel injectors
for leakage. Why? Because of the loss in fuel economy. A bad
injector or leaky fuel pump regulator would allow excess fuel
into the engine.

Because the mechanically driven compressor was replaced,
this is unlikely to be the source of the problem. But, worn
valve seals or any other oil leaks into the induction system can
do two things. First, generate a bit of bluish smoke at start-up,
as you said. And second, because of oil's lower flash point,
create a hint of detonation, which would cause the engine
management system to reduce boost or enrich the fuel-air
mixture, or both -- which would cause a loss of performance
and fuel economy.

By the way, the videotape was a great idea to help
communicate the problem to the dealer -- regardless of the
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