This is a gauge block I pulled from a P-Rod.The threaded hole is where the gauge screws in. Everything between the two o-rings is NOT UNDER PRESSURE....so what happens there is not caused by the pump,compressor,tanks...no matter what I used to fill the PCP,used in my enviroment and with my tendency to hunt in pretty crappy weather,it would have happened because It was casued by the outside air. Inside of the tube between those two o-rings was also a bit rusty.(Shame Crosman didn't anodize that part...would have helped).Will just polish the one above, slather it in silicon grease as a prtective layer (or you could just wax it)and re-use it.#2. FRONT FILL CAP: (Different rifle):Yep..there is a rust ring here, but the fill device didn't cause it as it's in a NON PRESSURIZED AREA.Moisture seeped into the cap's threads,but was stopped by the o-ring of the fill cap. (where the pressure starts)...so past that o-ring, the tube is clean...ahead of that o-ring (where there is no pressure) it rusted.#3.AFTER THE VALVE O RING:The inside of the tube to the rar of the valve is also NOT PRESSURIZED,but as that's where the striker runs,we tend to get that pretty well lubed one way or another.Still,can find rust there. Most valves don't have an o-ring right at the very end of the valve,leaving a little section of tube we don't coat with lube for the striker but is on the no pressure side of trhe valve's o-ring.None of those 3 spots are the fault of any type of fill device...becasue those spots were never under any pressure. Give the same use, they'd have rusted in those spots from the enviroment with any of the fill choices.
Been swapping around tubes in most of my guns the past couple months,......not a single sign of moisture in any of them, on the other hand I find a lot of moisture inside the HILLs and I mean a lot,so what's happening here ? ...either the moisture trap at the bottom of the pump works perfectly or when you shoot your guns you shoot the moisture out too
Quote from: Nomadic Pirate on October 22, 2018, 09:22:20 PMBeen swapping around tubes in most of my guns the past couple months,......not a single sign of moisture in any of them, on the other hand I find a lot of moisture inside the HILLs and I mean a lot,so what's happening here ? ...either the moisture trap at the bottom of the pump works perfectly or when you shoot your guns you shoot the moisture out too I almost destroyed a cylinder and a regulator thanks to a benji pump with no desiccant filter on it. I was most definitely putting moisture in the cylinder. Now, my Hill pump has never left any moisture, and things always stayed bone dry. On that note, my Hill mk4 has died I did the full rebuild on it, and it worked a little bit, but it loses air if you don't pump fast enough now... In other words, it's useless now. It was pretty nasty inside when I rebuilt it. I may have made it worse, when I cleaned everything. I'm wondering if there isn't enough lubrication in the inner tube in the pump now, because I cleaned it too much? Manny, you obviously have rebuilt a pump or two, what do you think? I've always loved my Hill, but things don't look good for it now. I've thought about getting one of the cheap pumps you've spoken about. Do those have a desiccant filter of any sort in them?
Quote from: Rallyshark on October 23, 2018, 01:23:59 AMQuote from: Nomadic Pirate on October 22, 2018, 09:22:20 PMBeen swapping around tubes in most of my guns the past couple months,......not a single sign of moisture in any of them, on the other hand I find a lot of moisture inside the HILLs and I mean a lot,so what's happening here ? ...either the moisture trap at the bottom of the pump works perfectly or when you shoot your guns you shoot the moisture out too I almost destroyed a cylinder and a regulator thanks to a benji pump with no desiccant filter on it. I was most definitely putting moisture in the cylinder. Now, my Hill pump has never left any moisture, and things always stayed bone dry. On that note, my Hill mk4 has died I did the full rebuild on it, and it worked a little bit, but it loses air if you don't pump fast enough now... In other words, it's useless now. It was pretty nasty inside when I rebuilt it. I may have made it worse, when I cleaned everything. I'm wondering if there isn't enough lubrication in the inner tube in the pump now, because I cleaned it too much? Manny, you obviously have rebuilt a pump or two, what do you think? I've always loved my Hill, but things don't look good for it now. I've thought about getting one of the cheap pumps you've spoken about. Do those have a desiccant filter of any sort in them?I had a similar situation with MKIII. Turned out to be that I swapped two o-rings that look to be the same size but are not. When I put it back together, the results were similar to what you describe. I had to pump quickly, or the pressure would not stay built up. If I recall correctly, there is one o-ring that sits on top of the brass fitting at the top of the tube (directly beneath the handle) and one that goes inside that brass fitting (under the part that screws out and helps hold the plastic balls in place). If you swap those two o-rings, the problem you describe occurs. They look almost identical, one is slightly larger than the other. If the pump is rebuilt with those in the wrong place, the pump won't work right.
Yes HILLs can get pretty gunky.Takes me 2 days to do a rebuild, day one clean every single part with Ballistol, let dry overnight then day 2 put everything back together with the new parts.As I mentioned I would not nor will buy a HILL anymore,......for the price of a rebuild HILL kit I can buy one of the new Chinese pumps.
Quote from: WeeHeavy on October 23, 2018, 07:48:20 AMQuote from: Rallyshark on October 23, 2018, 01:23:59 AMQuote from: Nomadic Pirate on October 22, 2018, 09:22:20 PMBeen swapping around tubes in most of my guns the past couple months,......not a single sign of moisture in any of them, on the other hand I find a lot of moisture inside the HILLs and I mean a lot,so what's happening here ? ...either the moisture trap at the bottom of the pump works perfectly or when you shoot your guns you shoot the moisture out too I almost destroyed a cylinder and a regulator thanks to a benji pump with no desiccant filter on it. I was most definitely putting moisture in the cylinder. Now, my Hill pump has never left any moisture, and things always stayed bone dry. On that note, my Hill mk4 has died I did the full rebuild on it, and it worked a little bit, but it loses air if you don't pump fast enough now... In other words, it's useless now. It was pretty nasty inside when I rebuilt it. I may have made it worse, when I cleaned everything. I'm wondering if there isn't enough lubrication in the inner tube in the pump now, because I cleaned it too much? Manny, you obviously have rebuilt a pump or two, what do you think? I've always loved my Hill, but things don't look good for it now. I've thought about getting one of the cheap pumps you've spoken about. Do those have a desiccant filter of any sort in them?I had a similar situation with MKIII. Turned out to be that I swapped two o-rings that look to be the same size but are not. When I put it back together, the results were similar to what you describe. I had to pump quickly, or the pressure would not stay built up. If I recall correctly, there is one o-ring that sits on top of the brass fitting at the top of the tube (directly beneath the handle) and one that goes inside that brass fitting (under the part that screws out and helps hold the plastic balls in place). If you swap those two o-rings, the problem you describe occurs. They look almost identical, one is slightly larger than the other. If the pump is rebuilt with those in the wrong place, the pump won't work right.Did the same thing not long ago with a Mk4... devil of a time figuring out what I'd done wrong, but once they were switched to the correct places it worked fine (& still is).
Quote from: Nomadic Pirate on October 23, 2018, 03:27:31 AMYes HILLs can get pretty gunky.Takes me 2 days to do a rebuild, day one clean every single part with Ballistol, let dry overnight then day 2 put everything back together with the new parts.As I mentioned I would not nor will buy a HILL anymore,......for the price of a rebuild HILL kit I can buy one of the new Chinese pumps.Do the Chinese pumps have any type of desiccant filter?Quote from: holmegaard on October 23, 2018, 01:37:37 PMQuote from: WeeHeavy on October 23, 2018, 07:48:20 AMQuote from: Rallyshark on October 23, 2018, 01:23:59 AMQuote from: Nomadic Pirate on October 22, 2018, 09:22:20 PMBeen swapping around tubes in most of my guns the past couple months,......not a single sign of moisture in any of them, on the other hand I find a lot of moisture inside the HILLs and I mean a lot,so what's happening here ? ...either the moisture trap at the bottom of the pump works perfectly or when you shoot your guns you shoot the moisture out too I almost destroyed a cylinder and a regulator thanks to a benji pump with no desiccant filter on it. I was most definitely putting moisture in the cylinder. Now, my Hill pump has never left any moisture, and things always stayed bone dry. On that note, my Hill mk4 has died I did the full rebuild on it, and it worked a little bit, but it loses air if you don't pump fast enough now... In other words, it's useless now. It was pretty nasty inside when I rebuilt it. I may have made it worse, when I cleaned everything. I'm wondering if there isn't enough lubrication in the inner tube in the pump now, because I cleaned it too much? Manny, you obviously have rebuilt a pump or two, what do you think? I've always loved my Hill, but things don't look good for it now. I've thought about getting one of the cheap pumps you've spoken about. Do those have a desiccant filter of any sort in them?Nope,But I came to believe that the moisture trap at the bottom of the pump is more important then desiccant filters.
Quote from: WeeHeavy on October 23, 2018, 07:48:20 AMQuote from: Rallyshark on October 23, 2018, 01:23:59 AMQuote from: Nomadic Pirate on October 22, 2018, 09:22:20 PMBeen swapping around tubes in most of my guns the past couple months,......not a single sign of moisture in any of them, on the other hand I find a lot of moisture inside the HILLs and I mean a lot,so what's happening here ? ...either the moisture trap at the bottom of the pump works perfectly or when you shoot your guns you shoot the moisture out too I almost destroyed a cylinder and a regulator thanks to a benji pump with no desiccant filter on it. I was most definitely putting moisture in the cylinder. Now, my Hill pump has never left any moisture, and things always stayed bone dry. On that note, my Hill mk4 has died I did the full rebuild on it, and it worked a little bit, but it loses air if you don't pump fast enough now... In other words, it's useless now. It was pretty nasty inside when I rebuilt it. I may have made it worse, when I cleaned everything. I'm wondering if there isn't enough lubrication in the inner tube in the pump now, because I cleaned it too much? Manny, you obviously have rebuilt a pump or two, what do you think? I've always loved my Hill, but things don't look good for it now. I've thought about getting one of the cheap pumps you've spoken about. Do those have a desiccant filter of any sort in them?Nope,But I came to believe that the moisture trap at the bottom of the pump is more important then desiccant filters.
Quote from: Rallyshark on October 23, 2018, 01:23:59 AMQuote from: Nomadic Pirate on October 22, 2018, 09:22:20 PMBeen swapping around tubes in most of my guns the past couple months,......not a single sign of moisture in any of them, on the other hand I find a lot of moisture inside the HILLs and I mean a lot,so what's happening here ? ...either the moisture trap at the bottom of the pump works perfectly or when you shoot your guns you shoot the moisture out too I almost destroyed a cylinder and a regulator thanks to a benji pump with no desiccant filter on it. I was most definitely putting moisture in the cylinder. Now, my Hill pump has never left any moisture, and things always stayed bone dry. On that note, my Hill mk4 has died I did the full rebuild on it, and it worked a little bit, but it loses air if you don't pump fast enough now... In other words, it's useless now. It was pretty nasty inside when I rebuilt it. I may have made it worse, when I cleaned everything. I'm wondering if there isn't enough lubrication in the inner tube in the pump now, because I cleaned it too much? Manny, you obviously have rebuilt a pump or two, what do you think? I've always loved my Hill, but things don't look good for it now. I've thought about getting one of the cheap pumps you've spoken about. Do those have a desiccant filter of any sort in them?Nope,But I came to believe that the moisture trap at the bottom of the pump is more important then desiccant filters.
Quote from: Nomadic Pirate on October 23, 2018, 03:27:31 AMYes HILLs can get pretty gunky.Takes me 2 days to do a rebuild, day one clean every single part with Ballistol, let dry overnight then day 2 put everything back together with the new parts.As I mentioned I would not nor will buy a HILL anymore,......for the price of a rebuild HILL kit I can buy one of the new Chinese pumps.Do the Chinese pumps have any type of desiccant filter?Quote from: holmegaard on October 23, 2018, 01:37:37 PMQuote from: WeeHeavy on October 23, 2018, 07:48:20 AMQuote from: Rallyshark on October 23, 2018, 01:23:59 AMQuote from: Nomadic Pirate on October 22, 2018, 09:22:20 PMBeen swapping around tubes in most of my guns the past couple months,......not a single sign of moisture in any of them, on the other hand I find a lot of moisture inside the HILLs and I mean a lot,so what's happening here ? ...either the moisture trap at the bottom of the pump works perfectly or when you shoot your guns you shoot the moisture out too I almost destroyed a cylinder and a regulator thanks to a benji pump with no desiccant filter on it. I was most definitely putting moisture in the cylinder. Now, my Hill pump has never left any moisture, and things always stayed bone dry. On that note, my Hill mk4 has died I did the full rebuild on it, and it worked a little bit, but it loses air if you don't pump fast enough now... In other words, it's useless now. It was pretty nasty inside when I rebuilt it. I may have made it worse, when I cleaned everything. I'm wondering if there isn't enough lubrication in the inner tube in the pump now, because I cleaned it too much? Manny, you obviously have rebuilt a pump or two, what do you think? I've always loved my Hill, but things don't look good for it now. I've thought about getting one of the cheap pumps you've spoken about. Do those have a desiccant filter of any sort in them?I had a similar situation with MKIII. Turned out to be that I swapped two o-rings that look to be the same size but are not. When I put it back together, the results were similar to what you describe. I had to pump quickly, or the pressure would not stay built up. If I recall correctly, there is one o-ring that sits on top of the brass fitting at the top of the tube (directly beneath the handle) and one that goes inside that brass fitting (under the part that screws out and helps hold the plastic balls in place). If you swap those two o-rings, the problem you describe occurs. They look almost identical, one is slightly larger than the other. If the pump is rebuilt with those in the wrong place, the pump won't work right.Did the same thing not long ago with a Mk4... devil of a time figuring out what I'd done wrong, but once they were switched to the correct places it worked fine (& still is). That sounds promising! Maybe I did switch them? I'll have to check that out when I get a chance.. Thanks for the info