Quote Originally Posted by 04OFF View Post
Have you thought about swaping the injector on CYL 4 with CYL 1, then do your compression test again.......... should rule out the injector without spending heaps of $$
I was just about to suggest the samething only for shits and giggles just to rule it out, but a leaking injecter will not effect compresion unless you have it half scewed out

"My mechanic suggests I change my injectors, injector pump and glow plugs"

I couldn't stop laughing when I read you swallow water so replace the injectors and pump ? So nothing to do with damaged internals, and a damaged conrod and maybe valve would produce white smoke of a morning of unburnt fuel until it warms up and ticking under load, it will need to be opened up and investaged or wait until it goes boom but most of the time it is cheaper to fix before you do more damage