So, what's the best lubricant for the O-rings in the EAS valve block please?
I've got the Vitron ones from X8R and they recommend Vaseline or di-electric grease.
I do have Vaseline, I also have some Silicon grease (from Carbusonic) which I think I used last time. A quick google for di-electric grease comes back with Silicon grease, am I OK to use this stuff on Vitron?
I don't use anything, bit of spit on the air lines when reinserting that's all.
I would use either silicone grease or Vaseline
cool, thanks! a very light amount of silicone grease has been applied.
I'll see if this valve block works and report back. Eventually.
The "fully tested" Valve block/compressor assembly will eventually become my spare once I get it working. I guess I should have made sure it was test as "working" instead of "knackered compressor and valve block that failed with a known good compressor" but caveat emptor eh? £100 doesn't buy you much on the bay of thieves.
It’s definitely getting more challenging to find good parts these days.
I work on the principle that it will be knackered and rebuild anyway. If, when I test it, it isn't knackered, that's a bonus. I have 4 pressure gauges on short lengths of pipe that I can put in the 4 corner outputs, a short length of 8mm pipe to link the in and out that would go to the dryer and then put pressure in the port that would come from the reservoir. That way I can pressurise a valve block, open the inlet valve and the 4 corners in turn by putting 12V onto the relevant pins in the connector (that way it also tests the driver pack) and put pressure into each gauge. Then leave it and see how long it takes for them to drop. No drop means it is good, any drops in pressure means it needs a rebuild.
Do not use Vaseline on rubber seals. It eventually degrades the rubber resulting in leaks. Use specific brake rubber grease - designed for the purpose. I always have a ready use spare rebuilt valve block ‘on the shelf’ (together with a spare pump) and swap the valve blocks and pumps over every three years as a maintenance activity. I have not had a leak between services since using rubber grease.