[C320-list] Another White Smoke from Perkins M30 Question

[Bill Carr]

I had my Perkins replaced with a Volvo penta. They share the same block. I’ve been very happy with the performance. Much quieter. No smoke starts promptly.
Bill Carr
Utopia, Hull 31
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Sent from my iPhone

> On Jan 22, 2024, at 12:14 PM, Jeff Smith via C320-list <c320-list at lists.catalina320.com> wrote:
> Mark,
> 
> It sounds more like a blown head gasket than a cracked block. That would be
> where I would start looking.
> 
> Jeff
> #121
> 
>> On Mon, Jan 22, 2024 at 3:03 PM Mark Cole via C320-list <
>> c320-list at lists.catalina320.com> wrote:
>> 
>> My Perkins M30 (hull #8, 1993) has started to smoke constantly when
>> running.  White smoke with maybe a little blue, it stays close to the water
>> and doesn’t dissipate.  I replaced the mixing elbow a few years ago and
>> still have great cooling water flow but the engine does overheat slightly
>> when I run over 2000 RPM and towing an inflatable dingy.  I have tired a
>> few repairs but no change.
>> 
>> The most recent development is decreasing coolant and an increase of oil
>> level on the dip stick.  There is also now a sheen on the water around the
>> exhaust.  Not bright fuel sheen, but dull brown oil sheen.  Does this sound
>> like a cracked block?  Is this the end of this engine, or are there more
>> tests/repairs I should contemplate?
>> 
>> Has anyone repowered their C320?  What engine fits best?  Rough costs?
>> 
>> Thanks for any input,
>> 
>> Mark
>> Fiddler’s Green #8
>> Port Townsend, WA