Yes they are but a toy diesel is about the smoothest running diesel out there for a truck application.
I've seen A440's fail behind the 6.2 GM which is much more light duty and way smoother than either the Isuzu or the Cummins.
That said, i'm not saying that it won't work, in fact i'm very interested to see if it does.
If it doesn't a rebuild and extreme valve body and extreme TQ converter after about 4k should make it pretty bullet proof.![]()
Yep I totally agree with you.
I already have an extreme valve body for a A440 and a lower stall diesel torque converter. I will be sending the TC off to get rebuilt and tweeked to reduce heat build up. So the two together should help the A440 handle the added vibration (I think its actually the two power pulses per revolution that is hard on them).
The set-up I have described above should be good for the power I plan to run out of the 4BD (160-180hp). I also have most the $$ mods already for it so its worth a shot. I'm not trying to make a land speeder I am mainly motivated because of economy (range on a tank of fuel) and simplicity of the engine. Up here there are lots of places I want to explore and see but with 250kms of range in a tank off road I can't do it, I would need to take to much extra fuel.
If the A440 cant handle it then I will look for a non electric A442 out of a JDM 81. They have there weaknesses too tho.