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| naffsharpe (Nathan):
David, I have been wrong in the past and I may be wrong this time, but, I think the spring fits over the spigot on the threaded bolt/plug and the ball goes into the bore to form a non return/regulating valve. As bolt has a sealing washer it's a fixed setting. Reassemble it, bleed it and try it but not on the car !. If the jack lifts just try standing on it/get someone else to stand on it before you lift any thing you are working on. Your safety must be your first priority. I envy your fitness at 70+, I'm wrecked at 61 but still work on the car and van then suffer the back/shoulder/ everything ache afterwards!! Nathan. |
| DavidA:
Nathan, I'll give that a try. It has to have a non return valve somewhere. It is annoying that such a simple thing is causing so much trouble. When I originally came to fix the jack I decided that I'd take it down to a local hydraulic repair place. 'Sorry', the man said. 'But we don't have much luck with trolley jacks'. As for the health thing. I have my off days as well. I have found out that since I had my TIA and a mild heart attack (back in 2007) I tire much more quickly. So I have adopted a scheme where I work a bit and rest a bit. That way I pace my self and don't get really exhausted. And if I don't feel up to it, I don't bother. It's only when I start to get a bit tired that I notice my age. But these projects won't do them selves. Take care, Dave. |
| awemawson:
Interesting comment that from your chap re trolley jacks. I had a 'pallet pump' - the sort of thing you roll pallets around a warehouse floor with - it would pump up fine, but wouldn't hold. Cylinder seemed fine, it could really only be the non return valve (which was overcome to lower the pallet) - but try as I might I never managed to fix it. Gave it away in the end to someone with more enthusiasm and time ! |
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