plugs look too "wet"
 

Many engines are normally 'overfueled' so that the combustion chambers
get some affect of cooling by the excess fuel flow through. Also if
you were running with a heavy load and were thus 'lugging' the engine
(not able to reach full rpm) youll also get some wetness on the walls,
piston tops, etc. due to the unburned fuel because the engine isnt
running a 'top efficiency'.

plugs look too "wet"
 

On Sun, 10 Aug 2008 21:15:18 -0500, Brian Whatcott
wrote:

matching prop pitch to desired cruise
speed is almost a black-art....

I though you gave it enough pitch just reach maximum rated RPM at WOT.

Casady

plugs look too "wet"
 

On 2008-08-12 19:18:41 -0400, (Richard
Casady) said:

On Sun, 10 Aug 2008 21:15:18 -0500, Brian Whatcott
wrote:

matching prop pitch to desired cruise speed is almost a black-art....

I though you gave it enough pitch just reach maximum rated RPM at WOT.

AT the speed WOT can give with the engine, prop, weight, drag ...

I had a powerboat friend that switched props depending on whether they
were skiing or traveling.

--
Jere Lull
Xan-à-Deux -- Tanzer 28 #4 out of Tolchester, MD
Xan's pages: http://web.mac.com/jerelull/iWeb/Xan/
Our BVI trips & tips: http://homepage.mac.com/jerelull/BVI/

plugs look too "wet"
 

On Tue, 12 Aug 2008 23:18:41 GMT, (Richard
Casady) wrote:

On Sun, 10 Aug 2008 21:15:18 -0500, Brian Whatcott
wrote:

matching prop pitch to desired cruise
speed is almost a black-art....

I though you gave it enough pitch just reach maximum rated RPM at WOT.

Casady

If you pitch a prop like this for a full laden boat - it can be dicey
with a light laden boat, don't you think?

Brian W

plugs look too "wet"
 

On Thu, 14 Aug 2008 18:11:10 -0500, Brian Whatcott
wrote:

On Tue, 12 Aug 2008 23:18:41 GMT, (Richard
Casady) wrote:

On Sun, 10 Aug 2008 21:15:18 -0500, Brian Whatcott
wrote:

matching prop pitch to desired cruise
speed is almost a black-art....

I though you gave it enough pitch just reach maximum rated RPM at WOT.

Casady

If you pitch a prop like this for a full laden boat - it can be dicey
with a light laden boat, don't you think?

Not really You can overrev the engine with a light load, but you dont
have too. Its just that WOT is not available with a very light load.

plugs look too "wet"
 

On Thu, 14 Aug 2008 18:11:10 -0500, Brian Whatcott
wrote:


If you pitch a prop like this for a full laden boat - it can be dicey
with a light laden boat, don't you think?

The engine will turn more revs than redline at WOT

Brian W

plugs look too "wet"
 

"Richard Casady" wrote in message
...
On Thu, 14 Aug 2008 18:11:10 -0500, Brian Whatcott
wrote:


If you pitch a prop like this for a full laden boat - it can be dicey
with a light laden boat, don't you think?

The engine will turn more revs than redline at WOT

Brian W


Pull back on the throttle.

Eisboch

plugs look too "wet"
 

On Fri, 15 Aug 2008 00:51:15 -0400, "Eisboch" wrote:

The engine will turn more revs than redline at WOT

Brian W


Pull back on the throttle.

Wrong. You advance it to the desired RPM and leave it alone, not pull
it back.

Casady

plugs look too "wet"
 

"Richard Casady" wrote in message
...
On Fri, 15 Aug 2008 00:51:15 -0400, "Eisboch" wrote:

The engine will turn more revs than redline at WOT

Brian W


Pull back on the throttle.

Wrong. You advance it to the desired RPM and leave it alone, not pull
it back.

Casady


Huh?

The OP said the engine was turning above redline at WOT. I simply
suggested reducing throttle.
I don't understand your comment.

Eisboch