Hi,
I see that we have both taken over our fathers' 1987 240 GL cars, both with the B230K engine. A few facts, as questions have been asked:
The B230K has a twin-barrel 34-34 Solex Cisac carb fitted (see picture below). This was the latest generation carb before EFI took over completely (as a result of catalytic convertor requirements from 1989). This engine has both EGR and Pulsair.
Displacement is the normal 2,316 ccm, and max power output is 116 HP @ 5100 rpm. Max torque is 19.6 kpm @ 2500 rpm, and compression rate is 10.5:1. In comparison, these were the figures for the Scandinavian version of the B230F of the same year: 113 HP @ 5400 rpm, 18.8 kpm @ 2750 rpm, compression 9.8:1.
With the T-cam and the high comp, the car pulls very well in stop-and-go traffic, but it dies above ca. 4,500 rpm.
The K engine's cylinder head ("631") has no combustion chambers! The top is completely flat, the combustion chambers are found in the dish-shaped piston tops - I believe it is called a "Heron design".
The high compression rate has resulted in an interference design, so make sure the timing belt is replaced at the appropriate intervals or you may face a very costly repair. Also, the carb has a lot (and I mean a LOT!) vacuum hoses connected. Rough idle, poor fuel economy and powerless behaviour can be caused by leaky rubber connections. And the twin plastic floats may start to leak, causing a drowned carb. I had mine professionally refurbished with great success, but be aware that quite a few down-draft Webers will fit the existing intake too. The electronic ignition computer (behind the glove compartment) is less likely to fail, but beware of the crank sensor and the very suspicious looking (square!) coil.
The Solex Cisac, as seen down the barrels:

Good luck with your car! Hope you will be as happy with yours as I have been with mine.
Erling, Norway.
--
My 240 Page
|