My Mercury 1999 75hp 2 stroke with oil injection has suffered some kind of failure which has caused damage to my engine. I had compression tested it 3 days ago and all three cylinders had a healthy 130psi each.
While out at sea the engine died suddenly for no reason but started back up ok, on the way back it happened again and for some reason if i went over 15knots the engine would cut out.
On the 3rd restart the engine was now missing on one cylinder and we limped back on two cylinders to the dock.
I have had the engineer call me today saying that he compression tested it and it now has
So somehow its killed its self, he noted he couldnt see any blue smoke coming from it especially when starting cold and suspect possibly its not been injecting oil. I am gutted
Engine was mint now its bloody fooked and i expect a big repair bill. I am just preying the damage to the powerhead isnt so bad that its scrap and can be at least bored oversize if need be.
Can anyone give me prices on a engine rebuild kit for a Mercury 1999 two stroke 75hp (Red stripe top). May as well overhaul the whole thing.
The engineer has recommended that we bin the oil injection system and go premix in future, they do all the RNLI boats and he told me thats the first thing they do, they dont even bother using the oilers as its a REALLY expensive repair if they ever fail and are not worth the risk, more so in an older engine.
luckily this guy is not expensive and does alot of the local fishermens boats, he said £100 at this point to tear the powerhead down into its parts and find out what the damage is, i am praying its not completly shagged!