Okay... I've been driving my 12A-SE since about mid january now... aside from 2500RPM idle and some secondary throttle issues (linkage not connected properly because if I connectct it I have a 7500rpm idle), it's more or less working right.

my carb is hosed, I need a new one or something.. I think that I'll probably get a megasquirt and go EFI over the summer (its my winter car).

Anyways, I'm driving around downtown today and I didn't bother shifting out of 2nd gear while going down a short (500m?) street... I was cruising at 5000-5500RPM for ... 10 seconds maybe? I let off (STEEP hilll at the end of the street) and downshift into 1st (about 7000RPM in 1st.. check hte mirror, WOW SMOKE EVERYWHERE! so I hit the clutch, drive the car home, it smokes once more.. park it, get the groceries out, take it for a spin... I drive it HARD.. the secondaries still open a good bit I think (probably halfway).. its not as fast as it could be but overall it's not that bad. anyways, it doesn't do it again, nomatter what I do to it.. it just acts like a perfect good little wankel.

My theory on what happened: I have an oil seal on the way out, crusing at 5000RPM made the oil pressure go WAY high and as soon as I let off the throttle it all got past the seal and caused the smokeshow....

The car has pretty good oil pressure I think.. at idle (2500RPM) when warm its just past the 4 and cruise at 3500 gets it almost to the 6... I wasn't looking at the gauges when it smoked.

Anywyas, is the engine OK, or should I be expecting serious troubles in the very near future? This car/engine combo needs to last me another 10,000KM (about 2 months) at least...

Thanks in advance...

 

You are probably right about the oil seal going out. High RPM + low throttle = very high vacuum, you can pull some oil past the seals and into the combustion chamber under those conditions.

 

welcome to my hell
knowing it needs to be rebuilt and not being able to do a thing

 

t3h bump