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A lot of bull crap and misinformation is spread online about these engines and works/doesn't work. It makes it a night mare for anyone trying to see good information about them. These are my discoveries. TD42/TD42t myths and similarities:
- Gudgeons are different - TD42 28mm, TD42t 30mm
- Oil squirters are different (between standard TD42 pistons and TD42t pistons with cooling gallery in crown)
- Oil pumps are different - Larger rotors and more flow in a TD42t, but will fit into a TD42 for better lubrication
- Crankshafts are different - The flywheel boss on the TD42 is 86mm flywheel boss on TD42t is 96mm, balancer pulleys are different, main and big end journals are exactly the same\
- Pre comps are bigger in TD42t - Pre comps are the exact same physical size, but are designed slightly different, TD42t pre comps will fit in a TD42 head.
- Front are rear main seals are different (due to flyhweel boss and crank pulley)
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