[NSRCA-discussion] cleaning up an engine ?

[Fred Huber]

I advise against use of carb cleaner.  When I attempted it on some engines I 
had corrosion problems.

My preferred method of cleaning an engine with lots of burned on castor or 
similar issues is the crock pot + aluminum block rated antifreeze.  Note 
that not all anti-freeze is safe for aluminum block engines.

You can also clean some stuff up by placing the engine in a glass jar, 
pouring some glow fuel in and sealing it for a few hours.  Never more than 
overnight.  The nitro + methanol is a good solvent, but anything it does not 
get off in 12 hrs... its not going to get off.

The key should pop out if rapped with a brass hammer.  Without knowing the 
heat expansion rate of the shaft its in vs the key... heat may make it fall 
out... or may hold it tighter.  The reason heating helps get bearings out of 
a crankcase is the aluminum expands more than the steel when heated.  If the 
alloy of the key expands more than the crankshaft, you won't get anywhere 
with heat.  But... if heat doesn't work, cold will. (stick the engine in a 
ziplock bag and toss in the freezer for an hr)

----- Original Message ----- 
From: "Paul Horan" <paul.horan at sbcglobal.net>
To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
Sent: Tuesday, October 03, 2006 5:59 PM
Subject: Re: [NSRCA-discussion] cleaning up an engine ?


>
>    Does carburator cleaner work ?
>
> ----- Original Message ----- 
> From: "Ron Van Putte" <vanputte at cox.net>
> To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
> Sent: Tuesday, October 03, 2006 1:37 PM
> Subject: Re: [NSRCA-discussion] cleaning up an engine ?
>
>
>>
>> On Oct 3, 2006, at 10:22 AM, Paul Horan wrote:
>>
>>>     Until I get some Demon Clean do you have any other alternatives
>>> to cleaning up the engine ?
>>>     How about getting the woodruff key out ?  Should the oven @ 300
>>> work.
>>
>> I've used a paint remover for aluminum airplanes called Aircraft
>> Remover.  It is sold in Auto Zone stores, as well as some other auto
>> parts stores.  It removes the toughest baked-on varnish and it is
>> designed to be compatible with aluminum, so there's none of the
>> discoloration that you sometimes get with regular oven cleaners.
>>
>> Ron Van Putte
>>
>>> ----- Original Message -----
>>> From: "John Pavlick" <jpavlick at idseng.com>
>>> To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
>>> Sent: Monday, October 02, 2006 11:49 PM
>>> Subject: Re: [NSRCA-discussion] cleaning up an engine ?
>>>
>>>
>>>> I use this stuff called "Demon Clean" and it works great. I tried
>>>> oven
>>>> cleaner, barbecue grill cleaner, etc. Some of these discolored the
>>>> aluminum
>>>> if you left it on too long. The Demon Clean has proven to be very
>>>> effective
>>>> and a little goes a long way. One can will probably last a few
>>>> years so it's
>>>> really not expensive. You can buy it here:
>>>> http://www.bj-model-engines.com/Demon-
>>>> Clean_email_response_11-11-05.html
>>>>
>>>> John Pavlick
>>>> http://www.idseng.com
>>>>
>>>>
>>>>> -----Original Message-----
>>>>> From: nsrca-discussion-bounces at lists.nsrca.org
>>>>> [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of
>>>>> Paul Horan
>>>>> Sent: Tuesday, October 03, 2006 12:31 AM
>>>>> To: nsrca-discussion at lists.nsrca.org
>>>>> Subject: [NSRCA-discussion] cleaning up an engine ?
>>>>>
>>>>>
>>>>>     I am working on changing the bearing on an OS BXI.  It was
>>>>> ran hard and put away wet.  Varnish carbon and some rust.
>>>>>
>>>>>     Also how do I get the woodruff pin out of the thrust washer ?
>>>>>   My plan so far is to heat the engine up to about 300 f in the
>>>>> oven and try to pop the thrust washer off.
>>>>>
>>>>> Thanks,
>>>>> Paul
>>>>>
>>>>> _______________________________________________
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