Offshoreonly.com - Rattle from back of motor????

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Offshoreonly.com (https://www.offshoreonly.com/forums/)

- General Q & A (https://www.offshoreonly.com/forums/general-q-20/)

- - Rattle from back of motor???? (https://www.offshoreonly.com/forums/general-q/338409-rattle-back-motor.html)

getrdunn

06-18-2016 08:29 PM

What ind of power are you throwing at that poor thing? Lol

230lx434

06-18-2016 08:38 PM

Getrdunn it made 618hp/541tq. SBC. Would your previous post fix the ratlle or just the trim indicator?

86Capri

06-21-2016 12:56 PM

Are your external flappers new? When I put mine on for the first few runs. At idle they sounded horrible I thought my motor was knocking.
Plus real easy to eliminate they come off easy. no harm in trying.

mine
[IMG]http://i1069.photobucket.com/albums/...1980000129.jpg[/IMG]
[IMG]http://i1069.photobucket.com/albums/...1980000055.jpg[/IMG]

Dave M

06-21-2016 01:33 PM

Quote:

Originally Posted by 230lx434 (Post 4451001)

Motor idles around 980-1050. Also i was told by a local performance marine guy that 1000rpm shifting would be ok?

May not have anything to do with your issue, but that DON'T sound good to me.

Baja Rooster

06-21-2016 01:34 PM

I put Hardin tips on and even the the flaps are rubber I thought the engine was coming apart. Since the sound goes away with rpms maybe a lifter issue? You can try changing different weight oil and see if it has any effect at all.

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