|
A cork friction disc holds the hytrol lever in place. Pull your right side inspection cover and look up in the housing with a flashlight.. rais your lift with a good laod on it. Of oil is shooting out the back of the lift piston.. it needs some work. Don't fear. the gaskets, and piston / oring is less than 100 bucks. And that includes a new relief valve. if you do just the basics.. you will only need a round cover side gasket.. a top cover gasket. The 3 small gaskets under the lift cyl.. a new piston, an oring and backup washer. That's it. Also.. if the hyd cyl isn't deeply scored and completely hosed.. use a brake cyl hone and lightly hone it up and down ( cross hatch pattern works ). Install the oring and backup washer ( backup washer goes closest to 'open' end of piston.. oring goes closest to 'closed' end of piston.. use some cooking oil or tranny oil to help seat the oring... also drop the leather backup washer in a pot of boiled water, and turn off the heat. let it se at least 15 minutes. The leather washer has a smooth side and a rough side. Smooth side towards the metal.. rough side will have the oring setting on it. Ther eis also a neophrene backup washer available from NH.. it has a smooth side and a beveled side. beveled side toward oring. Clean up the cyl and install the piston. Again.. use some tranny fluid to lube it. In the begining.. if you cant get the piston out.. a bit of compressed air will shoot it into your hand. You will have to unbolt the cyl from the top cover to remove the piston. pull those 4 studs LAST , and only remove the studs from the outter section of the top cover. I think everything is 11/16 You'll have to remove the upper lift arm pins holding the lift links, and probably the rocker ( good luck ). This isn't a bad job. i did my 8n top cover, and pump and all in 9 hours spread out over a 3 day weekend. If yours is just a top cover.. it should be 4 hours in and out and about 40$ in parts assuming you have a brake hone, and the cyl isn't hosed. if the cyl is bad.. add another 95$ The FO-4 has a great section on this. Borrow a torque wrench.. etc. Like I said. the top is easier than the bottom. If you can lift about 50-6-# you should be good to go. When you reinstall.. have some help with you if this is an 8n as you will need help guiding the some parts together from the top cover to the pump valving. I did it with my foot, and some long screwdrivers while holding my mouth just right. Soundguy
| 
