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-   -   Rattle from engine (http://www.mariahownersclub.com/forum/sea-fox-mariah-talk/3337-rattle-engine.html)

andyc 09-16-2009 07:28 AM

Rattle from engine
 
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:mad: 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:wink_thumbup:

Andyc

WetWilly 09-16-2009 11:05 PM

Re: Rattle from engine
 

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 09-21-2009 07:39 PM

Re: Rattle from engine
 
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:worry_to_laugh: 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..:wink_thumbup:
Andyc

WetWilly 09-22-2009 05:38 AM

Re: Rattle from engine
 
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 :wink_thumbup:.

WetWilly


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