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Re: speaking of 2 stroke diesels
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Posted by Jon Hagen on December 19, 2006 at 17:38:10 from (69.26.30.29):
In Reply to: Re: speaking of 2 stroke diesels posted by Jon Hagen on December 19, 2006 at 17:20:21:
Whups,I read JD's post again. The 702 V12 Was a factory built truck engine, built with a lot of V6 parts. The block,crankshaft and camshaft were one piece V12 units,exclusive to the V12, with 4 V6 351 heads and exhaust manifolds. It used 2 V6 351 intake manifold and carb assys. It had an odd distributor at the rear of the block with the dual points under a metal cover and two 6 cyl distributor heads,rotors,caps to fire all twelve cylinders. The 637 V8 was more powerfull and much more durable.
The downfall of the 702 V12 was that looong spindly crankshaft. Most died from a broken crankshaft in truck use. Detroit Diesel,atleast in the 149 series,and I think smaller series,assembled V12 and V16 engines by bolting 2 V6 or V8 blocks together. They a special long alignment shaft to fit the main bores of both blocks to keep the mains in alignment while bolting the blocks together.
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