Originally Posted by Salted
that's what the previous owner said too, but part of me just can't imagine/accept an engine
designed to make such a racket... hence this thread
Yes, she does do 5-ish +-, and I'll look for bouncing too, this weekend...
thats why i asked - i have a 2qm20
on my boat and it sounds like theres a jackhammer in the big end when i start it, settles down to gentle carcrash as it warms up a bit - these old 2 cyl diesels sound awful but - they go fine. If it started to make a LOT more noise
, I'd say worry, but if it just seems really loud but goes ok it probably is. Remember its a compression
ignition engine - no glow plugs, so seriously high compression
heads, but they are designed to run like this. If you get a chance to get someone trustworthy with experience of these engines to have a listen to it, that might be worth your while, hopefully just to set your mind at ease.