Grinding sound in Indmar Engine

Grinding sound in Indmar Engine

Post by K Enge » Mon, 08 Jan 2007 01:25:37


I have a 2000 Malibu with 180 hrs on it, and I am getting a grinding sound
in the engine when it is at an idle.  The problem is only intermittent, but
it was increasing in frequency last summer.  Any ideas on source of the
problem?  Of couse now that it is getting serviced the engine sounds fine to
the mechanic.  It sounds like a bearing starting to go.  Kevin
 
 
 

Grinding sound in Indmar Engine

Post by g » Mon, 08 Jan 2007 04:33:17

I don't know but how about some ideas.
If it was a bearing, my brother says "it would do it all the time"
We had a boat with a v-drive, I took it out and drove it hard, then on my
return it was whining loudly. It was the bearing inside the drive unit. So
when it went, it was gone.
I don't know your motor, but is there a u-joint or coupling that needs
greased.
Intermittent sound from engine at idle. Well, I was reading something on the
net, and people were complaining about piston slap on some of their motors -
for their cars, but when warm the noise would go away.
Like on our other inboard, it would never go higher than 160, on a normal
freshwater lake.
Could it be that your hearing the fuel pump whine, or is it straining, do
you need a new fuel filter.
Could it be just a loose fan belt, alternator belt, noise in waterpump,
impeller in waterpump bad? Something...

Quote:
>I have a 2000 Malibu with 180 hrs on it, and I am getting a grinding sound
>in the engine when it is at an idle.  The problem is only intermittent, but
>it was increasing in frequency last summer.  Any ideas on source of the
>problem?  Of couse now that it is getting serviced the engine sounds fine
>to the mechanic.  It sounds like a bearing starting to go.  Kevin


 
 
 

Grinding sound in Indmar Engine

Post by Bo » Mon, 08 Jan 2007 06:02:34



Quote:
>I have a 2000 Malibu with 180 hrs on it, and I am getting a grinding sound
>in the engine when it is at an idle.  The problem is only intermittent, but
>it was increasing in frequency last summer.  Any ideas on source of the
>problem?  Of couse now that it is getting serviced the engine sounds fine to
>the mechanic.  It sounds like a bearing starting to go.  Kevin

Alternator bearing maybe?  It would be cheap insurance to pull the
alternator apart & stick new bearings in it.

If you take the alternator off then wiggle the water pump pulley to
make sure there isn't a bearing going out there.  The raw water pump
is the only other possible culprit I can think of but they don't
really make any noise - they just puke all of a sudden.

--
R.J.(Bob) Evans
(return address needs alteration to work)

 
 
 

Grinding sound in Indmar Engine

Post by Bo » Thu, 11 Jan 2007 10:30:07



Quote:
>Thanks for the input Bob.  A neighbour here who works on cars had the same
>suggestions.

Well then - either we're both dummies or we're both geniuses - let me
know how it works out.

--
R.J.(Bob) Evans
(return address needs alteration to work)

 
 
 

Grinding sound in Indmar Engine

Post by K Enge » Thu, 11 Jan 2007 07:22:44

Thanks for the input Bob.  A neighbour here who works on cars had the same
suggestions.

Kevin



Quote:


>>I have a 2000 Malibu with 180 hrs on it, and I am getting a grinding sound
>>in the engine when it is at an idle.  The problem is only intermittent,
>>but
>>it was increasing in frequency last summer.  Any ideas on source of the
>>problem?  Of couse now that it is getting serviced the engine sounds fine
>>to
>>the mechanic.  It sounds like a bearing starting to go.  Kevin

> Alternator bearing maybe?  It would be cheap insurance to pull the
> alternator apart & stick new bearings in it.

> If you take the alternator off then wiggle the water pump pulley to
> make sure there isn't a bearing going out there.  The raw water pump
> is the only other possible culprit I can think of but they don't
> really make any noise - they just puke all of a sudden.

> --
> R.J.(Bob) Evans
> (return address needs alteration to work)

 
 
 

Grinding sound in Indmar Engine

Post by trainfan » Sun, 14 Jan 2007 10:44:42

Quote:

> I have a 2000 Malibu with 180 hrs on it, and I am getting a grinding sound
> in the engine when it is at an idle.  The problem is only intermittent, but
> it was increasing in frequency last summer.  Any ideas on source of the
> problem?  Of couse now that it is getting serviced the engine sounds fine to
> the mechanic.  It sounds like a bearing starting to go.  Kevin

Check the trannsmission fluid level.

Rob