Al Smith
Mac Daddy
This is about old hydraulic cylinders .The older style were made to be rebuilt forever it's just very few do it .They are 3000 PSI rated but built differently than a modern cylinder .The shaft seals for example were made originally with preformed rope seals but standard valve packing will work just as well.The type used on big high pressure steam valves .
You just get the correct size,this was 3/8" and cut the rings at a 45 degree angle,pound them in with the gland nut and drown them with penetrating oil then stuff the next one in and do same .They will wear out in time but it takes a long time .The hydraulic oil keeps them supple and they do weep but not leak .These were squirting about a half pint of fluid like a hill billy spitting tobacco juice every time I tilted the cylinder.20 minute job,now it doesn't leak.
Good ole Ollie is running like top though .Second gear,uphill spinning the tracks and never missed a beat .Not bad for an old fart much like myself .
You just get the correct size,this was 3/8" and cut the rings at a 45 degree angle,pound them in with the gland nut and drown them with penetrating oil then stuff the next one in and do same .They will wear out in time but it takes a long time .The hydraulic oil keeps them supple and they do weep but not leak .These were squirting about a half pint of fluid like a hill billy spitting tobacco juice every time I tilted the cylinder.20 minute job,now it doesn't leak.
Good ole Ollie is running like top though .Second gear,uphill spinning the tracks and never missed a beat .Not bad for an old fart much like myself .