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Old Sep 25, 2003, 04:01 AM
Naveed Naseer
Guest
n/a Posts
How to clean an engine?

I bought an old OS engine which seems to have not been used for some time.
The engine does not seem to be damaged as it does have compression. From
the exhaust port I can see that the piston does have some brown stuff on it
which I am guessing is the castor. Should I try to take it apart and then
clean it or should I try to get some fuel into it and hope that it will get
rid of the castor.



Old Sep 26, 2003, 04:00 AM
Paul McIntosh
Guest
n/a Posts
Re: How to clean an engine?

Some browning of the piston is normal in high time engines regardless of
what oil is used. The hotter the engine is run, the more brown there will
be. It is usually not harmful unless it builds up too much on the top of
the pistont and affects compression.

If the engine turns over smoothly and has compression, don't take it apart.
Run it with some sport fuel containing mostly synthetic oil with a smaller
amount of castor. Any excess carbon will be dissolved by the synthetic oil
while running.


--
Paul McIntosh
Desert Sky Model Aviation
http://fly.mcintoshcentral.com
"Naveed Naseer" <naveed6@tiscali.co.uk> wrote in message
news:3f726b33$1_1@mk-nntp-2.news.uk.tiscali.com...
> I bought an old OS engine which seems to have not been used for some time.
> The engine does not seem to be damaged as it does have compression. From
> the exhaust port I can see that the piston does have some brown stuff on

it
> which I am guessing is the castor. Should I try to take it apart and then
> clean it or should I try to get some fuel into it and hope that it will

get
> rid of the castor.
>
>
>



Old Sep 26, 2003, 04:00 AM
Dr1Driver
Guest
n/a Posts
Re: How to clean an engine?

> From
>the exhaust port I can see that the piston does have some brown stuff on it


Unless the engine is really gummy and stiff to turn, leave it alone. Start it
and let the new fuel and heat clean any old deposits.
Dr.1 Driver
"There's a Hun in the sun!"
Old Sep 26, 2003, 04:01 AM
Greg Forestieri
Guest
n/a Posts
Re: How to clean an engine?

"Naveed Naseer" <naveed6@tiscali.co.uk> wrote in message news:<3f726b33$1_1@mk-nntp-2.news.uk.tiscali.com>...
> I bought an old OS engine which seems to have not been used for some time.
> The engine does not seem to be damaged as it does have compression. From
> the exhaust port I can see that the piston does have some brown stuff on it
> which I am guessing is the castor. Should I try to take it apart and then
> clean it or should I try to get some fuel into it and hope that it will get
> rid of the castor.


Don't clean the insides of the engine unless it just won't run, and
even then it might not have a positive effect.

To clean the gunk off of the outside I use Easy-Off oven cleaner.

Good luck
Greg
 


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