BobMaine

I'd like to replace the bearings (myself) in my OS 70 Surpass this winter. I've read some general instructions for bearing replacement but would like to find some info that was specific to this engine. Or something close to it. Can't seem to find much online, can someone point me to a web page with this information? Thanks.
Bob

Bax

My Feedback: (11)

What information are you looking for? We'd not have assembly/disassembly instructions for O.S. engines, but can give general guidelines. You may be able to use the RCU 'Search' function to locate what you need.

BobMaine

I have read how change the bearings in the Saito -- maybe the procedure is the same? I guess the part I don't understand is how crank and valve train go back together so the valves open and close (timing) when they are suppose to. I thought there would be some step by step instructions for the OS 70 like there is for my Saito but haven't found any yet....

Bax

My Feedback: (11)

Here's how the timing gets set when you reassemble the engine:

http://www.osengines.com/faq/product-faq.html#q15

You can find a lot of help on the FAQ page:

http://www.osengines.com/faq/product-faq.html#q1