Re: Me and my "new" 86 Coupe GT

["Luis A. Marques" <marques@ti.com>]

> This car has not yet operated more than one or two clicks above 'cold' 
> H20 temp, and barely makes it to 1/4 up the oil temp guage (105deg).  
> What gives?  Bad thermostat?....
>
> Mileage is AWFUL so far.  Trip computer  (toy) says anywher from 
> 10.5-14 mpg.  ???  It's the small 5cyl, and I havent been doing 
> quarter miles or anything.  ?

Have you actually computed you mileage with the odometer/fuel used?  If
the car is cold enough, the computer will enrich the mixture for better
driveablity.  Once you replace the faulty thermostat, this should go up
to the 24-28 mpg range.  Also, check the spark plugs, wires, distributor
cap & rotor.

> When powering down, the motor makes one last shudder--it seems like 
> that last rotation is all out o' whack--is this a trait of the 5cyl. 
> motor?

See above.  You may also have some carbon deoposits on the intake
valves/combustion chamber.  Perhaps some Techron can help here as well.

Luis Marques
'87 4kcsq