YS-91 AC problem

[Don Ramsey]

Try Dawn Power Desolver to remove carbon.  Amazing stuff.


----- Original Message ----- 
From: "Verne Koester" <verne at twmi.rr.com>
To: <discussion at nsrca.org>
Sent: Thursday, June 02, 2005 10:46 PM
Subject: Re: YS-91 AC problem


> Ken,
> Never had any luck with solvents and I tried a bunch of different ones. 
> Bob Kane has the right idea in scraping it off with a tool softer than the 
> valve itself. The #11 blade fits the bill.
>
> Be careful if you decide to use an abrasive to remove the carbon. That 
> stem is a very close tolerance fit which is why a small amount of carbon 
> can make it stick. If you remove any metal by sanding, you'll have other 
> problems to deal with.
>
> Verne
>
>
> ----- Original Message ----- 
> From: "Ken Thompson" <mrandmrst at comcast.net>
> To: <discussion at nsrca.org>
> Sent: Thursday, June 02, 2005 10:04 PM
> Subject: Re: YS-91 AC problem
>
>
>> I'm going to try to find a solvent to soften the carbon, at the local 
>> auto supply, and use a brass wire wheel to remove the balance, still in 
>> theory.
>>
>> Ken
>> ----- Original Message ----- 
>> From: "Bob Kane" <getterflash at yahoo.com>
>> To: <discussion at nsrca.org>
>> Sent: Thursday, June 02, 2005 9:52 PM
>> Subject: Re: YS-91 AC problem
>>
>>
>>> The carbon is tuff, I scrape the stems and valve edge
>>> clean using some tool softer that the valve. The first
>>> time I saw this I thought the edges of the valve had
>>> broken off, but it was the rough edge of the carbon
>>> buildup.
>>>
>>> --- Ken Thompson <mrandmrst at comcast.net> wrote:
>>>
>>>> Paul,
>>>>
>>>> I'm going to pull the head and drop the valves out
>>>> to clean them.  Is there an easier way?
>>>>
>>>> Ken
>>>>   ----- Original Message ----- 
>>>>   From: Paul Horan
>>>>   To: discussion at nsrca.org
>>>>   Sent: Thursday, June 02, 2005 9:29 PM
>>>>   Subject: Re: YS-91 AC problem
>>>>
>>>>
>>>>   Ken,
>>>>       What did he tell you to do the cure the carbon
>>>> problem.
>>>>   Thanks,
>>>>   Paul
>>>>     ----- Original Message ----- 
>>>>     From: Ken Thompson
>>>>     To: discussion at nsrca.org
>>>>     Sent: Thursday, June 02, 2005 7:22 PM
>>>>     Subject: YS-91 AC problem
>>>>
>>>>
>>>>     Thank you to all who gave me places to look for
>>>> my problem.
>>>>     Somebody gave me the thought that maybe it was
>>>> carbon deposits on a valve, I'm sorry I don't
>>>> remember who.  I dismissed this theory because the
>>>> valves seemed to be operating properly.
>>>>     Early this morning Mike Darr stopped by to check
>>>> out my damaged Excelleron and took a look at my
>>>> motor for me.  He manually worked the valves and all
>>>> of a sudden the compression came back.  It looks
>>>> like there was carbon on the valves after all.  He
>>>> told me what to do and I should have it fixed as
>>>> soon as I get back from Norfolk, a little trip this
>>>> weekend to go out for the day on the USS Theodore
>>>> Roosevelt.
>>>>     Thank you all again and thanks to Mike for
>>>> showing me what to do.
>>>>
>>>>     Ken Thompson
>>>
>>>
>>> Bob Kane
>>> getterflash at yahoo.com
>>>
>>>
>>>
>>> __________________________________
>>> Discover Yahoo!
>>> Stay in touch with email, IM, photo sharing and more. Check it out!
>>> http://discover.yahoo.com/stayintouch.html
>>> =================================================
>>> To access the email archives for this list, go to
>>> http://lists.f3a.us/pipermail/nsrca-discussion/
>>> To be removed from this list, go to http://www.nsrca.org/discussionA.htm
>>> and follow the instructions.
>>>
>>> List members email returned for mailbox full will be removed from the 
>>> list.
>>>
>>
>> =================================================
>> To access the email archives for this list, go to
>> http://lists.f3a.us/pipermail/nsrca-discussion/
>> To be removed from this list, go to http://www.nsrca.org/discussionA.htm
>> and follow the instructions.
>>
>> List members email returned for mailbox full will be removed from the 
>> list.
>>
>>
>
> =================================================
> To access the email archives for this list, go to
> http://lists.f3a.us/pipermail/nsrca-discussion/
> To be removed from this list, go to http://www.nsrca.org/discussionA.htm
> and follow the instructions.
>
> List members email returned for mailbox full will be removed from the 
> list.
> 

=================================================
To access the email archives for this list, go to
http://lists.f3a.us/pipermail/nsrca-discussion/
To be removed from this list, go to http://www.nsrca.org/discussionA.htm
and follow the instructions.

List members email returned for mailbox full will be removed from the list.