Engine in Frame
Fitting the engine in the frame was difficult because the height interferes with the engine tunnel in the cab. It took a lot of carefull adjustments to get it to sit right and clear the dog house. Its interesting to note that the 1693TA is a taller engine than the Cummins KTA due to the position of the turbocharger. The bigger air cleaner is scratch built and sits approximately 1/16" further back than the kit one. When you appreciate the difficulties of installing big engines in the Pacemaker you realise why Peterbilt introduced the 352H model which was 4" taller.