Topic: The great oil mystery

[Red750K1]

wow, looks like I started a debate  . . . lol.  There is NO oil leaking out of the engine, trust me I'd know. I've put over 8,000 on this season and only noticed that the oil was in the stator b/c I took the cover off to polish it and saw a few oz. of oil inside, it wasn't half full or anything. Also, its NOT the valve seals, put new intake valve seals on when I rebuilt the motor 2 yrs ago. The early 750 heads have NO exhaust valve seals, the later heads have different valve guides that used seals but not mine, so I know its going to burn a little oil and thats normal.  So, if its normal to have oil in the stator cover, cool, I'm not worried.

[KB02]

Smokes at start and after a few miles it goes away... Sounds like valve seals.

BUT, All rotor discussion aside, and back to the question at hand. I would agree with Sporkfly that it does sounds like a leaking valve seal. Do you have the stock four into four pipes, or a 4 into 1 (4 into 2?). basically wondering if each cylinder smokes or just one.

[kghost]

Ok thats shocking, How does it work? I thought tht the only thing that would need oil in a altenator would be the bearings, The rest should be dry too much oil in there and the altenator wont work propperly.

Not really its not a generator....its an alternator. No brushes. If I understand you correctly ...you probably believe the wiring will short out?

Doesn't its all sealed.

[speedy gonzalais]

I know its an altenator also i know oil will mess it up sealed or not im not going against what ur sayin about the crank seal i dont know, ive got a 650 not the 750 But what i do know oil inside the altenator is not good.

When i was workin in a garage a couple of years back we had a season of peugeots coming in with busted altenators they where broke because the power steering pump located above the altenator was leaking filling it with hydrolic fluid/oil, It covers the rotor stator and brushes insulating them causing a failure and also causes extra friction over heating every thing

[kghost]

I know its an altenator also i know oil will mess it up sealed or not im not going against what ur sayin about the crank seal i dont know, ive got a 650 not the 750 But what i do know oil inside the altenator is not good.

When i was workin in a garage a couple of years back we had a season of peugeots coming in with busted altenators they where broke because the power steering pump located above the altenator was leaking filling it with hydrolic fluid/oil, It covers the rotor stator and brushes insulating them causing a failure and also causes extra friction over heating every thing

Its also quite possible that the power steering fluid was DOT3 polyethelyne glycol based and quite corrosive.

Theres a bit of a difference between that and motor oil. Most fluids used in Hydraulic units such as brakes and power steering units are concerned with compressibility and Boiling point. Different fluids abound.

Honda designed the windings to withstand the Oil.

[speedy gonzalais]

they run on transmittion fluid in well most of them do.

[kghost]

Well Puegeots are Weird 

Just kidding I had a 206 when I lived in Malta. Was a cool little car.

From Wikipedia: Hydraulic fluids can contain a wide range of chemical compounds, including: oils, butanol, esters (e.g. phthalates, like DEHP, and adipates, like bis(2-ethylhexyl) adipate), polyalkylene glycols (PAG), phosphate esters (e.g. tributylphosphate), silicones, alkylated aromatic hydrocarbons, polyalphaolefins (PAO) (e.g. polyisobutenes), corrosion inhibitors, etc.

Many hydraulic fluids are corrosive and eat plastic, paint, rubber etc.

Oil is a bit less caustic.

The stator windings seem to survive just fine. Mine are 36+ years old and keep right on working.

On the 350/400 series theres no oil in the stator cover. I looked at the 550 engine I have and its oil tight as well