NegevLandRover Posted February 7, 2011 Share Posted February 7, 2011 I think my 220V compressor, in the garage for LR related things,has partialy ceased after running dry (don't ask). The oil tank was pretty much empty and when I switch it on it turns over a couple of times and then stops and then the overload switch switches it off. If I persevere I can eventually get it going (switch it on and off several times untill it builds up momentum)but as soon as it reaches a full tank and switches off it refuses to start again - same symptoms as when I first switch it on. Is this easily repaired ? What will I need - piston rings, seals ?? Any advice would be much appreciated. TIA Adam Quote Link to comment Share on other sites More sharing options...
rtbarton Posted February 7, 2011 Share Posted February 7, 2011 First thing to check, when it switches off do you get a definite hiss from the pressure switch? If not it could be a blocked unloading valve or pipe. Quote Link to comment Share on other sites More sharing options...
NegevLandRover Posted February 7, 2011 Author Share Posted February 7, 2011 No hiss. Even when empty it will not come on for more than a second or two. After refilling with oil and getting it to run and then leaving it a few days it seems better but the air comming out of the tank has a deffinite smell of oil. Adam Quote Link to comment Share on other sites More sharing options...
rtbarton Posted February 7, 2011 Share Posted February 7, 2011 Yeah,you should still get the hiss when it switches off, unless the motor is cutting out before full pressure is reached. Does it take longer to reach full pressure than it did? Is it breathing out of the filler oil hole? Quote Link to comment Share on other sites More sharing options...
NegevLandRover Posted February 7, 2011 Author Share Posted February 7, 2011 Yes it is blowing air out of the filler hole. The pressure gauge shows that it is reaching full pressure and I don't think it is taking longer than normal - not alot longer anyway. Quote Link to comment Share on other sites More sharing options...
rtbarton Posted February 7, 2011 Share Posted February 7, 2011 Time to take the head off and have a look Quote Link to comment Share on other sites More sharing options...
NegevLandRover Posted February 7, 2011 Author Share Posted February 7, 2011 Thanks for that - I'll get started in the morning. I hope I can find the parts. It's one of those weeks - one of my LRs had two electric fires and is in pieces while we try and figure out what led to what and why. At the moment more questions than answers and a whole lot of damage to prove it all. It never rains - it just poors !!! Adam Quote Link to comment Share on other sites More sharing options...
NegevLandRover Posted February 8, 2011 Author Share Posted February 8, 2011 Took one of the cylinder heads of and found no rings - they have "evaporated". Will try and source some new rings. At least the LR is now working again - untill the next break down anyway. Adam Quote Link to comment Share on other sites More sharing options...
rtbarton Posted February 8, 2011 Share Posted February 8, 2011 Stating the obvious, make sure the bores and pistons are OK before fitting new rings. Quote Link to comment Share on other sites More sharing options...
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