i have a 1990 honda crx, and ive been wondering what engine i have in it, its stock, and it has well over 200k miles on it, so im looking to see if i can rebuild this one, and trying to see if it would be worth it instead of just buying a new engine, all i know is its a dx, and the info stated above, and that the engine is definately a d-series. any help will be appreciated, thanks.