Here is a good page on how to field strip and clean the colt
1911 pistol. http://www.bobtuley.com/45/magazine1.htm
your colt model 1911 was made by colt in 1913.
The colt 1911 fires .45ACP ammunition.
Your colt 1911 was made in 1924.
The Colt 1911 was designed in 1897 and adopted by the US Army in 1911.
With the serial number that you have provided,your Colt Model 1911 was made by Colt in the year 1918.
By studying the books that have been written on Colt 1911's
Many have, primarily Colt.
Best left to a good gunsmith. Depending on exactly what you have, you could devalue it with improper cleaning.
The Colt 1911 government model with that serial number was made in 1919,
Your colt 1911 was made for the U S GOVERMENT in 1919.
Your Colt 1911 national match was made in 1963.
If your Colt is the 1911 military pistol, it was made in 1915.
The Colt M1911 was designed 1911.
Colt 1911 .45 serial # 171885 was manufactured in 1917.
The Colt 1911 A1 is rated at 395 FPS (Feet Per Second)