[andyc]

Well thats the boating season about over for this year in Scotland,its almost been a total washout with only a few dry weekends to go out and play. Most of the boats here which are moored in inland lochs(lakes) come out this or next weekend so not a lot of time left to play BUT my 2004 sx18 with a mercriuser 3L has developed an awfull rattle it started about 40mph but now rattles about 25mph I dont have a clue about engines but know a few guys who do but I would like a few pointers if anyone has any suggestions they are most welcome

Andyc

[WetWilly]

Hi Andy,

The first thought to come to mind is rod knock (bad crank bearing), but I would like to get a little more information first...

Can you isolate the rattle to a particular area of the motor:

• Under the valve cover

• From the oil pan

• Near the front

• Near the back

• Etc...

Also, are we sure the sound is coming from the motor and not:

• Bell housing

• Transom

• Outdrive

• When going straight

• When turning

Lastly, have you checked your motor's oil level and oil pressure lately?

WetWilly

[andyc]

Hey weywilly,sorry for the delay in getting back to you, I left my keys with the guy at the boat yard who passed them on to the local boat repair guy who has stopped the rattle dont know what it was yet(or how much for the repair) but as son as I know what it was I will let you know..
Andyc

[WetWilly]

Hi andyc,

So he found the source of the rattle and fixed it.... that's great, I'll be waiting to hear what it was .

WetWilly