bshrivar
New Niva Petrol Head
Posts: 39
Registered: Apr 30, 2013 2:08:25 GMT 2
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Post by bshrivar on Sept 9, 2013 18:03:30 GMT 2
hi, does any one have a step by step instruction on how to replace the seals! i have already taken the cylinder out!!!
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Post by Ari Bezuidenhout on Sept 9, 2013 18:53:44 GMT 2
I dont know of any, are you going to write one for us when you have done it? Look in the workshop manual which you can find if you click on the blue LOCSA website button at the top.
Ari
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spikes
Moderator
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Location: Mpumalanga
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Post by spikes on Sept 9, 2013 19:50:54 GMT 2
Hi Shrivar,
You should be able to find a generic "how-to" on the web. Cleanliness when stripping and reassembling the plunger and seals are of utmost importance. Soak the new seals in clean brake fluid Lightly hone the cylinders with wet sanding paper, the fineest grade of metal sanding paper you can find. Do not overdo the honing. Wash cylinders with petrol after honing Liberally smear the inside with clean brake fluid
Spikes
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bshrivar
New Niva Petrol Head
Posts: 39
Registered: Apr 30, 2013 2:08:25 GMT 2
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Post by bshrivar on Sept 9, 2013 21:00:20 GMT 2
well, just to know how about to strip it! There are two bolts under the actual cylinder then the large nut in front! also the way which each rubber is placed! i'll try checking the web! but if any assistance can be provided would be much appreciated!!!
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Post by Ari Bezuidenhout on Sept 9, 2013 22:32:31 GMT 2
its on page 127 of the manual
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Post by Ari Bezuidenhout on Sept 10, 2013 11:18:10 GMT 2
Master cylinder The design of the master cylinder is shown on fig. 6-9. Removal and refitting. Disconnect the flexible hoses from the master cylinder and close the openings of hoses and connectors on the cylinder to prevent liquid leak from reservoir and penetration of dust, dirt or foreign matters. Undo the tube nuts and disconnect from the master cylinder the steel pipelines that are carrying liquid to wheel cylinders of front and rear brakes. Remove the cylinder, having undone the nuts that are fastening it to the servo unit. Refitting of the master cylinder is carried out in reverse sequence. After refitting the cylinder, bleed the hydraulic system to expel air. Dismantle and reassembly. Remove connectors 2 (fig. 6- 10) with connecting bushes 3, turn out lock bolts 5 and take out all components in order specified on fig. 6-10. The reassembly of the cylinder is carried out in reverse sequence. Grease all components with brake liquid. Inspection of components. Before reassembly, wash all components with isopropyl alcohol; dry by a jet of compressed air or wipe with a clean cloth, but do not allow their contact with mineral oil, kerosine or diesel fuel, which can damage the sealings. Note. Time of washing the sealing rings in isopropyl alcohol is no more than 20 seconds with subsequent drying by compressed air. The cylinder mirror and working surfaces of pistons should be completely clean, without rust, marks and other defects. No excessive gap between the cylinder and pistons is allowed. Every time, when dismantling the cylinder, renew the sealings, even if they are in good condition. Check the piston spring tension, the length of which should be 41.7 mm under load of 42.18±3.92 N (4.3±0.4 kgf), 21 mm under load of 90.64±8.83 N (9.24±0.9 kgf), in free state - 59.7 mm.
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Ihar
Moderator
Lada Niva Driver
Honour thy forefathers and drink beer, they did
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Location: Gauteng
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Post by Ihar on Sept 10, 2013 12:29:51 GMT 2
Isn't there a how to on that french site i found a while ago? Forgot its address.
Tjeers
Steve
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Post by Ari Bezuidenhout on Sept 10, 2013 13:03:52 GMT 2
Think it was for the calipers, but couldn't find it
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Post by marius on Sept 10, 2013 19:58:01 GMT 2
bshrivar you should keep in mind that these cylinders have a limited lifespan - they tend to rust on the inside and form tiny air cavities that you may not be able to see at first. This happens mainly because the system is not flushed on a regular basis as it should be. There is a fairly good chance that replacing the seals might not do the trick - then you will have to replace it with a new unit. Marius
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bshrivar
New Niva Petrol Head
Posts: 39
Registered: Apr 30, 2013 2:08:25 GMT 2
Karma: Exalt | Smite
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Post by bshrivar on Sept 12, 2013 14:05:42 GMT 2
thanks guys, replaced the seals, all is good! bore is still good, rubbers were soft especially the primary seal that was causing the leak!!!
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