How To Repair The Pump On An Airmaster 77

		Lube and repair questions
	Posted: Tue May 03, 2022 iii:32 am Macruadhi New Member Joined: 03 May 2022 Posts: iv I have two guns to repair and I'm nervous about diving into them. The first rifle I took apart never worked again, but that was when I was 15. So how hard is information technology to regasket air guns? They're both multi pump models, a desperately neglected Remington airmaster 77 and a Crosman 1322 that I ruined the gaskets with WD40. And what lubricants does i use that is gasket, seal, and everything else friendly?

	Posted: Tue May 03, 2022 half dozen:55 am domer_pyle Senior Fellow member Joined: 17 Sep 2009 Posts: 523 The Airmaster is the same equally a Crosman 2100 and I tin can tell you that they are a majestic b!tch to put dorsum together, both of mine I opened upwardly shot parts out of the breech right as it was coming autonomously. And on top of that you lot need almost 4 hands to concord them all and put everything in place. It can be done though, I used very sparse wire to kind of tie the parts into either side of the breech and when they were together untied the 2 strings and slid them out before tightening the screws. There are a few things you can find with Google that have helpful pictures too. Good luck

	Posted: Tue May 03, 2022 x:14 am AirGunEric Site Admin Joined: twenty Jan 2007 Posts: 6904 Location: "Out There" Employ Crosman Pellgunoil or a non-detergent xxx-weight engine oil to lubricate Co2 and pump-upward guns. _________________ ` I'd say "I care." Only I'd be lying. Canadian Airgun Supplier: http://world wide web.scopesandammo.com/storefront

	Posted: Tue May 03, 2022 11:16 am Crosman140 Senior Member Joined: thirteen December 2008 Posts: 663 Location: United states AirGunEric wrote: a non-detergent 30-weight engine oil to lubricate Co2 and pump-upward guns. Doesn't the petroleum pause down the condom seals? _________________ My Critter Gitters .22 Crosman 140 (1955) .177 Crosman G1 (2009) .177 Crosman 1377 (2009) .177 Daisy 880 (2019) BB Daisy Cerise Ryder (2012) BB Daisy Buck (2019) BB Crosman 1600 (1980) BB Marksman 1010 (1979)

	Posted: Tue May 03, 2022 5:03 pm AirGunEric Site Admin Joined: 20 Jan 2007 Posts: 6904 Location: "Out There" Pellgunoil is petroleum oil- just tinted red. And no, it seems it is the detergents in regular engine oil that swallow the seals (slowly)- thus the "non detergent" specification. Of course, some people might non pay attention to this and just go get a container of 5W30 and then have their seals become funky... _________________ ` I'd say "I care." Just I'd be lying. Canadian Airgun Supplier: http://world wide web.scopesandammo.com/storefront

	Posted: Tue May 03, 2022 6:02 pm Crosman140 Senior Member Joined: 13 Dec 2008 Posts: 663 Location: USA AirGunEric wrote: Pellgunoil is petroleum oil- but tinted red. And no, information technology seems it is the detergents in regular engine oil that consume the seals (slowly)- thus the "non detergent" specification. Of course, some people might not pay attention to this and just become get a container of 5W30 and and then have their seals go funky... Adept information. Thank you. _________________ My Critter Gitters .22 Crosman 140 (1955) .177 Crosman G1 (2009) .177 Crosman 1377 (2009) .177 Daisy 880 (2019) BB Daisy Red Ryder (2012) BB Daisy Buck (2019) BB Crosman 1600 (1980) BB Marksman 1010 (1979)

		Ok, now information technology's autonomously...
	Posted: Tue May 03, 2022 11:50 pm Macruadhi New Member Joined: 03 May 2022 Posts: 4 I've gotten it fully disassembled and have gotten all I can out of the pump tube without tools, how practise I get the residual of the parts out? I am also wondering about the part that attaches to the lever/link assembly, the parts diagram shows it as being office #2200E016, but neither the proper noun or cost is listed. Anybody know what it's called? Does it come apart?

	Posted: Tue May 03, 2022 11:51 pm donec Senior Member Joined: 19 Dec 2009 Posts: 836 Location: central Texas Pflugerville area Crosman140 wrote: AirGunEric wrote: Pellgunoil is petroleum oil- only tinted red. And no, it seems it is the detergents in regular engine oil that consume the seals (slowly)- thus the "not detergent" specification. Of form, some people might not pay attention to this and just go get a container of 5W30 so have their seals go funky... Proficient data. Thanks. I contacted Crosman customer service and ask them about Pellgunoil and this is their reply. Quote: Don, Our Pellgun oil has no petroleum distillates, and most others do. The petroleum distillates will consume the seals in our guns. You'd be better off using automatic transmission fluid. I was told by an engineer that that's what the Pellgun oil is. Thanks for contacting Crosman. Have a great mean solar day! Jan

	Posted: Wed May 04, 2022 2:12 am kanyon Silvery Status Member Joined: 09 Aug 2008 Posts: 1582 Location: New Zealand Crosman140 wrote: AirGunEric wrote: a non-detergent 30-weight engine oil to lubricate Co2 and pump-upward guns. Doesn't the petroleum interruption downwards the condom seals? rubber oil seals / O-rings / gaskets etc are used to seal petroleum products... how much condom has yer auto got in the engine & fuel system _________________ Career Infinity PCP .22 Webley Patriot .25 Hatsan mod 75 .22 Hatsan mod 99 .177 (Quattro & SAS) Kral underlever .177 ............................................. .

	Posted: Wed May 04, 2022 6:54 am Crosman140 Senior Fellow member Joined: 13 December 2008 Posts: 663 Location: USA AirGunEric wrote: Pellgunoil is petroleum oil- just tinted reddish. donec wrote: I contacted Crosman customer service and ask them well-nigh Pellgunoil and this is their reply. Don, Our Pellgun oil has no petroleum distillates, and most others exercise. The petroleum distillates will eat the seals in our guns. You'd be improve off using automatic transmission fluid. I was told by an engineer that that's what the Pellgun oil is. Thanks for contacting Crosman. Accept a great twenty-four hours! Jan "Automated Transmission Fluid" Now this is starting to brand sense. Thus the "blood-red" colour. ATF is cerise. I've as well heard others using ATF for their airguns as a lube and gun coat. Interesting. Cheers for contacting Crosman, donec. _________________ My Critter Gitters .22 Crosman 140 (1955) .177 Crosman G1 (2009) .177 Crosman 1377 (2009) .177 Daisy 880 (2019) BB Daisy Reddish Ryder (2012) BB Daisy Buck (2019) BB Crosman 1600 (1980) BB Marksman 1010 (1979)

	Posted: Wed May 04, 2022 nine:46 am SMP Silvery Condition Member Joined: 04 February 2022 Posts: 1183 Location: But due south of "Out In that location"- Land O Lakes Ontario This is starting to brand some sense Motor oils are created from petroleum base stocks and ATF is really a hydraulic fluid created from mineral base stock. Petroleum base stocks have high inherent acidity and mineral base stocks take a depression inherent acidity Detergents are added to motor oils to suspension downwards and suspend carbon deposits created in combustion. The seals in our guns are typically one or another form of polycarbonate (many carbons) Therefore it seems reasonable that the detergent can pause downward the carbon chains of the seals. Simply some other fun geek fact

	Posted: Wed May 04, 2022 10:28 am AirGunEric Site Admin Joined: 20 January 2007 Posts: 6904 Location: "Out There" donec wrote: Don, Our Pellgun oil has no petroleum distillates, and most others practice. The petroleum distillates will eat the seals in our guns. You lot'd exist better off using automatic transmission fluid. I was told past an engineer that that's what the Pellgun oil is. Thanks for contacting Crosman. Have a not bad day! Jan Somehow, every fourth dimension this topic comes up anywhere- some Crosman "quote" is pulled out where the thought is that PelGunOil is not a petroleum distillate production/non engine oil. In the higher up quote- they accept outright contradicted themselves- engine oil and ATF are equally much a petroleum distillate production equally one another (they are both petroleum oils and by nature, some distillates will be in them). I call up their customer service people have confused Pellgunoil with their Silicone Sleeping room Lube- or simply have no idea what they're talking about. One thing to note of course, ATF has a distinctive smell- PellGunOil does non take this odour. Here's the MSDS sheet for Pellgunoil correct on Crosman's website: http://www.crosman.com/pdf/msds/MSDS-PELLGUNOIL.pdf -clearly indicating it is a GFS SAE 30 engine oil Now, it's possible that this is an older MSDS (MSDS'due south have been effectually for what, about 25 years now?) and possibly PellGunOil is now in fact a low-scent ATF- but is absolutely was engine oil at one point (without detergents)- and ATF is designed to NOT consume seals as an automated transmission is full of them. As for the argument "cars are total of prophylactic seals"- this is comparison apples to oranges. The ONLY seals in an oil-soaked surround in a car engine are typically the valvestems (or car transmissions- run across above virtually ATF)- and these seals are made of Viton- or the gasket materials for things such as the timing chain cover or such- which are stationary and compressed and guarded from the oil for the well-nigh part, simply do disintegrate from the edges inwards over time. Excluding the valve seals- no other "prophylactic" seals are in any sort of abiding motion/period environment as many in an airgun are (i.e. pump cups, transfer sleeves, etc.). Fuel system seals are now made of Viton as well, and older vehicles with "rubber" fuel line joints in them admittedly did disintegrate over time.

		Re: Ok, at present information technology'due south apart...
	Posted: Wed May 04, 2022 10:36 am AirGunEric Site Admin Joined: xx Jan 2007 Posts: 6904 Location: "Out There" Back to the original topic: Macruadhi wrote: I've gotten it fully disassembled and have gotten all I can out of the pump tube without tools, how do I become the residual of the parts out? I am also wondering almost the part that attaches to the lever/link assembly, the parts diagram shows information technology as existence part #2200E016, simply neither the name or price is listed. Anybody know what it'south called? Does it come autonomously? Delight be more specific on what you mean in the first argument- what parts are removed and what are you stuck on? 2200E016 is called the "connecting rod" and has the pump cup on the end of information technology. If the rod is non damaged, leave it alone and supercede only the cup- function # 760-140 _________________ ` I'd say "I care." But I'd be lying. Canadian Airgun Supplier: http://world wide web.scopesandammo.com/storefront

	Posted: Wednesday May 04, 2022 6:59 pm Macruadhi New Member Joined: 03 May 2022 Posts: four I was wondering if I needed to check the parts that remain in the pump tube, the valve assembly. Earlier I disassembled it, the rifle would not pump up. It looks every bit though information technology was left in the pelting and the inside of the tube is a bit rusty. Short of some sort of cylinder hone, any ideas on cleaning that up? Keep in mind that this project is do for when I'thousand ready to rebuild a 1322. Thanks

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