Anthem is an '85 H40
that we purchased in 2000 with a 4JHE that had under 800 hours on it. The p.o. acknowledged that he rarely ran the engine at more than 2000 rpm. Here's my observations and I'll let smarter people draw conclusions. On purchase survey it heavily smoked a white smoke with a tint of blue when under load and above 2K rpm. It started and performed fine. We motor-cruised at 2800 and over the first year the smoking decreased dramatically. For the next three years it smoked little, if at all, when used under load once warmed up. When accumulating hours charging batts under low load at anchor it will smoke heavily for the first 10 minutes under load as we power away from anchor. Afterwards, the smoke dissappears. The engine consumes one quart of engine oil every 35-50 hours under load (as per my maintenance logs.) The performance of the 4JHE has ALWAYS been flawless. Hope this helps.
