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Next: Sailmonster
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External
Since: Aug 12, 2007
Posts: 173
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(Msg. 16) Posted: Wed Jul 09, 2008 1:24 pm
Post subject: Re: plugs look too "wet" [Login to view extended thread Info.]
Archived from groups: rec>boats>cruising, others (more info?)
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"Chuck" <chuck.TakeThisOut@mchsi.com> wrote in message
news:v_2dk.190760$TT4.166948@attbi_s22...
>
> <gfretwell.TakeThisOut@aol.com> wrote in message
> news:78887493373aup3gm1qob1232eka46q4ea@4ax.com...
>> On Tue, 08 Jul 2008 23:37:37 GMT, "Chuck" <chuck.TakeThisOut@mchsi.com> wrote:
>>
>>>I have a Merc 60 Bigfoot, 3-cyl outboard fitted with NGK BP8H-N-10 plugs.
>>>I
>>>think my plugs look too "wet" much like the third one shown in the photo
>>>on
>>>the NGK website.
>>>http://www.ngksparkplugs.com/techinfo/spark_plugs/faq/faqread2.asp?nav=31200&country=US
>>>
>>>Although the motor runs pretty smoothly. I running with a 130 degree
>>>thermostat. What should I look at adjusting?
>>>
>>>Chuck
>>
>>
>> Before I got crazy and tried to "fix" a motor that was running well I
>> would ask, how far did you have to idle back to the ramp before you
>> pulled these plugs?
>> If this is running well other the entire range I might try a little
>> hotter plug, if it is loading up when you idle you could play with the
>> idle screws a little but be careful you don't break it.
>
> I see your point about the idling...... it took me at least 10 minutes
> running at idle rpm. I never thought of that. BTW, this is an automatic
> oil injection system and so I cant adjust the fuel/oil mixture ratio.
To check the plugs you need to run at a cruising speed and then shutdown,
pull the plugs and take a look at them. Idling around for anytime is going
to load them up on a 2 stroke. |
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External
Since: Mar 11, 2005
Posts: 877
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(Msg. 17) Posted: Wed Jul 09, 2008 1:24 pm
Post subject: Re: plugs look too "wet" [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
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External
Since: Sep 29, 2007
Posts: 783
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(Msg. 18) Posted: Wed Jul 09, 2008 1:24 pm
Post subject: Re: plugs look too "wet" [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Wed, 9 Jul 2008 09:37:26 -0400, "jamesgangnc" <james DeleteThis @nospam.com>
wrote:
>To check the plugs you need to run at a cruising speed and then shutdown,
>pull the plugs and take a look at them. Idling around for anytime is going
>to load them up on a 2 stroke.
>
Any caution here about letting the heads cool down?
They're aluminum, right?
--Vic >> Stay informed about: plugs look too "wet" |
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External
Since: Mar 11, 2005
Posts: 877
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(Msg. 19) Posted: Wed Jul 09, 2008 8:59 pm
Post subject: Re: plugs look too "wet" [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
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External
Since: Sep 29, 2007
Posts: 783
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(Msg. 20) Posted: Wed Jul 09, 2008 10:24 pm
Post subject: Re: plugs look too "wet" [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Wed, 09 Jul 2008 20:59:28 -0400, gfretwell.DeleteThis@aol.com wrote:
>On Wed, 09 Jul 2008 11:13:56 -0500, Vic Smith
><thismailautodeleted.DeleteThis@comcast.net> wrote:
>
>>>To check the plugs you need to run at a cruising speed and then shutdown,
>>>pull the plugs and take a look at them. Idling around for anytime is going
>>>to load them up on a 2 stroke.
>>>
>>Any caution here about letting the heads cool down?
>>They're aluminum, right?
>>
>>--
>
>Bass boats run flat out, then shut down fast all the time. The heads
>seem fine
I meant to say pulling plugs from a hot aluminum head.
I stretched some threads doing that once.
Thereafter there was no more screwing them in easily by hand.
Might be a head can cool faster than a plug too.
In any case it's better to let the whole shebang cool off to near
ambient, which is what I always do now.
--Vic >> Stay informed about: plugs look too "wet" |
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External
Since: Mar 11, 2005
Posts: 877
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(Msg. 21) Posted: Thu Jul 10, 2008 12:41 am
Post subject: Re: plugs look too "wet" [Login to view extended thread Info.]
Imported from groups: per prev. post (more info?)
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External
Since: Jul 11, 2007
Posts: 204
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(Msg. 22) Posted: Thu Jul 10, 2008 3:46 am
Post subject: Re: plugs look too "wet" [Login to view extended thread Info.]
Archived from groups: rec>boats (more info?)
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On Wed, 09 Jul 2008 09:54:04 -0400, DownTime <DownTime61.TakeThisOut@comcast.net>
wrote:
>Chuck wrote:
>> I have a Merc 60 Bigfoot, 3-cyl outboard fitted with NGK BP8H-N-10
>> plugs. I think my plugs look too "wet" much like the third one shown in
>> the photo on the NGK website.
>> http://www.ngksparkplugs.com/techinfo/spark_plugs/faq/faqread2.asp?nav...200&cou
>>
>>
>> Although the motor runs pretty smoothly. I running with a 130 degree
>> thermostat. What should I look at adjusting?
>>
>> Chuck
>This reminds me to give mine a check while we are at it. But before I
>do, I am curious to know if anyone ever bothers to clean em, and if so,
>with what, or do you always replace? I had always just replaced them. My
>thinking is compared to an engine rebuild or replacement, the investment
>is worth it in my mind. The engine in question in this case is a 2004
>Yamaha 300 HPDI.
The plugs is the family ride looked fine at 100 000 miles, but we
replaced them anyway. Platinum points of course. Two hours labor to
change the plugs.
Casady >> Stay informed about: plugs look too "wet" |
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External
Since: Jul 06, 2008
Posts: 15
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(Msg. 23) Posted: Mon Aug 11, 2008 2:10 am
Post subject: Re: plugs look too "wet" [Login to view extended thread Info.]
Archived from groups: rec>boats>cruising, others (more info?)
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"Chuck" <chuck RemoveThis @mchsi.com> wrote in message
news:5TSck.244293$yE1.55866@attbi_s21...
>I have a Merc 60 Bigfoot, 3-cyl outboard fitted with NGK BP8H-N-10 plugs.
>I think my plugs look too "wet" much like the third one shown in the photo
>on the NGK website.
>http://www.ngksparkplugs.com/techinfo/spark_plugs/faq/faqread2.asp?nav=31200&country=US
>
> Although the motor runs pretty smoothly. I running with a 130 degree
> thermostat. What should I look at adjusting?
>
> Chuck
Doesn't anybody want to know what the problem turned out to be?
scroll down................
down more..............................
Remember its a 60hp motor on a 24ft pontoon party boat. On the fourth of
July I had 14 people on it and THAT was the reason it felt so sluggish and
caused me to check the plugs, which is when I noticed they were "wet." When
I have a few people on the boat it cruises easily at twenty knots.
Yeah.... don't anybody say it......... go ahead.......... >> Stay informed about: plugs look too "wet" |
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External
Since: Jun 22, 2003
Posts: 409
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(Msg. 24) Posted: Mon Aug 11, 2008 2:10 am
Post subject: Re: plugs look too "wet" [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Mon, 11 Aug 2008 02:10:55 GMT, "Chuck" <chuck DeleteThis @mchsi.com> wrote:
>
>"Chuck" <chuck DeleteThis @mchsi.com> wrote in message
>news:5TSck.244293$yE1.55866@attbi_s21...
>>I have a Merc 60 Bigfoot, 3-cyl outboard fitted with NGK BP8H-N-10 plugs.
>>I think my plugs look too "wet" much like the third one shown in the photo
>>on the NGK website.
>>http://www.ngksparkplugs.com/techinfo/spark_plugs/faq/faqread2.asp?nav=31200&country=US
>>
>> Although the motor runs pretty smoothly. I running with a 130 degree
>> thermostat. What should I look at adjusting?
>>
>> Chuck
>Doesn't anybody want to know what the problem turned out to be?
>
>scroll down................
>
>
>down more..............................
>
>
>Remember its a 60hp motor on a 24ft pontoon party boat. On the fourth of
>July I had 14 people on it and THAT was the reason it felt so sluggish and
>caused me to check the plugs, which is when I noticed they were "wet." When
>I have a few people on the boat it cruises easily at twenty knots.
>Yeah.... don't anybody say it......... go ahead..........
Ah well: live and learn.... matching prop pitch to desired cruise
speed is almost a black-art....
Brian W >> Stay informed about: plugs look too "wet" |
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External
Since: Sep 22, 2003
Posts: 43
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(Msg. 25) Posted: Mon Aug 11, 2008 2:26 am
Post subject: Re: plugs look too "wet" [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On 2008-08-10 22:10:55 -0400, "Chuck" <chuck.RemoveThis@mchsi.com> said:
> "Chuck" <chuck.RemoveThis@mchsi.com> wrote in message
> news:5TSck.244293$yE1.55866@attbi_s21...
>> I have a Merc 60 Bigfoot, 3-cyl outboard fitted with NGK BP8H-N-10
>> plugs. I think my plugs look too "wet" much like the third one shown in
>> the photo on the NGK website.
>> http://www.ngksparkplugs.com/techinfo/spark_plugs/faq/faqread2.asp?nav...200&cou
Although
>>
>> the motor runs pretty smoothly. I running with a 130 degree
>> thermostat. What should I look at adjusting?
>>
>> Chuck
> Doesn't anybody want to know what the problem turned out to be?
>
> scroll down................
>
>
> down more..............................
>
>
> Remember its a 60hp motor on a 24ft pontoon party boat. On the fourth
> of July I had 14 people on it and THAT was the reason it felt so
> sluggish and caused me to check the plugs, which is when I noticed they
> were "wet." When I have a few people on the boat it cruises easily at
> twenty knots. Yeah.... don't anybody say it......... go ahead..........
I won't, but thanks for the chuckle.
--
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/ >> Stay informed about: plugs look too "wet" |
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External
Since: Jul 21, 2008
Posts: 239
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(Msg. 26) Posted: Mon Aug 11, 2008 10:55 am
Post subject: Re: plugs look too "wet" [Login to view extended thread Info.]
Archived from groups: rec>boats (more info?)
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On Mon, 11 Aug 2008 02:10:55 GMT, "Chuck" <chuck.DeleteThis@mchsi.com> wrote:
>
>"Chuck" <chuck.DeleteThis@mchsi.com> wrote in message
>news:5TSck.244293$yE1.55866@attbi_s21...
>>I have a Merc 60 Bigfoot, 3-cyl outboard fitted with NGK BP8H-N-10 plugs.
>>I think my plugs look too "wet" much like the third one shown in the photo
>>on the NGK website.
>>http://www.ngksparkplugs.com/techinfo/spark_plugs/faq/faqread2.asp?nav=31200&country=US
>>
>> Although the motor runs pretty smoothly. I running with a 130 degree
>> thermostat. What should I look at adjusting?
>>
>> Chuck
>Doesn't anybody want to know what the problem turned out to be?
>
>scroll down................
>
>
>down more..............................
>
>
>Remember its a 60hp motor on a 24ft pontoon party boat. On the fourth of
>July I had 14 people on it and THAT was the reason it felt so sluggish and
>caused me to check the plugs, which is when I noticed they were "wet." When
>I have a few people on the boat it cruises easily at twenty knots.
>Yeah.... don't anybody say it......... go ahead..........
Nope.
Glad you found the problem though. >> Stay informed about: plugs look too "wet" |
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External
Since: Aug 11, 2008
Posts: 1
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(Msg. 27) Posted: Mon Aug 11, 2008 3:08 pm
Post subject: Re: plugs look too "wet" [Login to view extended thread Info.]
Archived from groups: rec>boats>cruising, others (more info?)
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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'. >> Stay informed about: plugs look too "wet" |
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External
Since: Jul 11, 2007
Posts: 204
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(Msg. 28) Posted: Tue Aug 12, 2008 11:18 pm
Post subject: Re: plugs look too "wet" [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Sun, 10 Aug 2008 21:15:18 -0500, Brian Whatcott
<betwys1 RemoveThis @sbcglobal.net> 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 >> Stay informed about: plugs look too "wet" |
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External
Since: Sep 22, 2003
Posts: 43
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(Msg. 29) Posted: Wed Aug 13, 2008 12:15 pm
Post subject: Re: plugs look too "wet" [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On 2008-08-12 19:18:41 -0400, richardcasady RemoveThis @earthlink.net (Richard
Casady) said:
> On Sun, 10 Aug 2008 21:15:18 -0500, Brian Whatcott
> <betwys1 RemoveThis @sbcglobal.net> 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/ >> Stay informed about: plugs look too "wet" |
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External
Since: Jun 22, 2003
Posts: 409
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(Msg. 30) Posted: Thu Aug 14, 2008 6:11 pm
Post subject: Re: plugs look too "wet" [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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On Tue, 12 Aug 2008 23:18:41 GMT, richardcasady DeleteThis @earthlink.net (Richard
Casady) wrote:
>On Sun, 10 Aug 2008 21:15:18 -0500, Brian Whatcott
><betwys1 DeleteThis @sbcglobal.net> 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 >> Stay informed about: plugs look too "wet" |
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