Hi all, First post from a newbie.
I've got an old fibreglass Randell with a Detroit 8V92 550hp marine engine in it.
It was running well until it sat in the harbour for around 8 months. I was running it on the mooring for a half hour here and there thinking i was doing the right thing. I've since been told these engines don't like being idled too much as it can gum up the injectors??? The fuel is old but i paid to have the fuel polished.
I took it out for an overnighter recently. It wouldn't get up to 1500 revs while moving and when i pushed it, it would blow heavy black smoke.
It does need an antifoul...
I got it up to higher revs in neatral to see if that changed anything and it blew out a heap of black smook, soot. I limped it home. It still sounds nice and smooth, not running rough. Just won't get up to speed and blows black smoke. Doesn't get hot. The oil pressure alarm did come on a couple of times when i pushed it a little.
I'm heading out to have a look at a few things.
- check air filters. Take out filters and run to see if blows smoke
- check engine bay vents are open and exhaust fan is running. (I don't think it was on last run)
-should i attempt to clean injectors or should i look at putting an injector cleaner in???
- check fuel filters?
Any help much appreciated. I will get a mechanic to look at it but i'd like to check the obvious things first.
thanks in advance
I've got an old fibreglass Randell with a Detroit 8V92 550hp marine engine in it.
It was running well until it sat in the harbour for around 8 months. I was running it on the mooring for a half hour here and there thinking i was doing the right thing. I've since been told these engines don't like being idled too much as it can gum up the injectors??? The fuel is old but i paid to have the fuel polished.
I took it out for an overnighter recently. It wouldn't get up to 1500 revs while moving and when i pushed it, it would blow heavy black smoke.
It does need an antifoul...
I got it up to higher revs in neatral to see if that changed anything and it blew out a heap of black smook, soot. I limped it home. It still sounds nice and smooth, not running rough. Just won't get up to speed and blows black smoke. Doesn't get hot. The oil pressure alarm did come on a couple of times when i pushed it a little.
I'm heading out to have a look at a few things.
- check air filters. Take out filters and run to see if blows smoke
- check engine bay vents are open and exhaust fan is running. (I don't think it was on last run)
-should i attempt to clean injectors or should i look at putting an injector cleaner in???
- check fuel filters?
Any help much appreciated. I will get a mechanic to look at it but i'd like to check the obvious things first.
thanks in advance