You will need to identify the gun better than a "model 170" as in what is the manufacturer, caliber, type of gun, etc. Parts are available here: Numrich gunpartscorp.com
Jack First jackfirstgun.com
Bob's Gun Shop gun-parts.com
The Healthmaster 170 excercise bicycle was made by Roadmaster Corporation who went out of business in August of 1997. Parts for these products are no longer available.
the savage model 170 pump rifle was made from 1970-1981.
I assume you mean a Savage Model 170 rifle. The link below will take you to a website with photos of a Savage 170.
savage firearms began making the model 170,in 1970 and ended in 1981.
http://www.gunreports.com/special_reports/long_guns/Savage-Slide-Action-Rifles-gunsmithing-model-1702516-1.html
I just bought a model 170 series b ser#c754716 in relativeley good condition for $200.00 Canadian.
As of today 15 Dec. '08 there are two on line for $500. Google Savage 170 for sale.
what is a 16ga bolt action j.c.higgens model 58314 worth
I don't believe Benjamin ever made a model 170, but they did make a model 177. Is this the BB gun you are asking about?
A Savage 30-30 pump is the model 170 , they were manufactured from 1970-1981
I've gone through several air gun catalogues and have been unable to locate a Daisy model 170 bb gun that has ever been made. I did find a Daisy BB gun model 5170 and a BB rifle model 1170 along with a BB rifle model 107 but "NO" model 170. However I suggest you search the web for "Daisy Air gun Repair" or "Air gun repair" and locate someone near you who can help you.
I've gone through several air gun catalogues and have been unable to locate a Daisy model 170 bb gun that has ever been made. I did find a Daisy BB gun model 5170 and a BB rifle model 1170 along with a BB rifle model 107 but "NO" model 170. So here is what I suggest. Contact Daisy, They offer a service to evaluate older Daisy antiques for free. See the link below.