OS 75AX Customer Rebuild

[@rtoebak76]

I finally bought a 2.5liter ultrasonic cleaner. I took the engine apart and after 10minutes i was amazed how good this works. Did it 10 more minutes and it was done. 😀🇳🇱

[@octane613]

that engine has had a hard life. I really enjoy your vids, you should have my subs!!!! I love these teardowns!!!

[@davidreid8727]

It's very possible that engine was on a seaplane and got dunked in the water...numerous times before changing hands. Looks like you have a good line on getting her humming again. Carry on David.

[@dmrcflyr2]

I post customer rebuild videos as a service to the customer. Comments from those other than the customer can and may be deleted.

[@tamerozturk8547]

Hi David.I have got both OS 55AX-II and ASP 52 glow engines that they need to be replace their bearings.However, I wonder that should I buy original bearings which produced by OS engines? or should I buy from local market where they sell real car replacement parts?

[@VintageTechFan]

I'm going to need an ultrasonic cleaner now, too. The real ones, especially with heating, aren't exactly cheap, though.

[@dmrcflyr2]

This is the one I have. Not too expensive, or large, but works well. This one has separate heat and timing controls. www.ebay.com/itm/New-2L-Ultrasonic-Cleaner-Stainless-Steel-Industry-Heated-Heater-w-Timer-Mini/203107887552?hash=item2f4a2c69c0%3Ag%3AnVoAAOSwbLlgFCPs&LH_BIN=1&LH_ItemCondition=3

[@VintageTechFan]

@@dmrcflyr2 Thanks. Now I just have to find something comparable in Germany ;). The last time I looked they were around 10x this price. Those were laboratory grade, though.

[@alexmorales742]

How much do you charge to do the same for an os 50 sx h ring? mine moves freely and still runs great. But have had for 15 yrs may be time to replace the bearings.

[@robertredmond77]

Needs new piston sleeve and bearings

[@dmrcflyr2]

Coming from someone who has no videos associated with your username. Just an FYI, I replaced all parts that the customer requested. That is what is supposed to happen, right?

[@anthonycphillips2430]

Bro.. the cylinder & piston are damaged. It needs to be replaced if you want the engine to be back to spec

[@dmrcflyr2]

I am NOT your Bro. Did I ever say anything about bringing it back to 'spec'. The customer gets what they are willing to pay for, nothing more.