.22 Sharp Innova refurbushment
Printed From: Kiwi Airgunners
Category: General
Forum Name: Flub's General Discussion
Forum Description: General discussion goes in here.
URL: www.kiwiairgunners.co.nz/forum_posts.asp?TID=960
Printed Date: 11 May 2024 at 2:40am
Software Version: Web Wiz Forums 10.14 - http://www.webwizforums.com
Topic: .22 Sharp Innova refurbushment
Posted By: Deano
Subject: .22 Sharp Innova refurbushment
Date Posted: 14 Jan 2024 at 2:31pm
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Hi All, I'm documenting the pulling apart, inspection and refurbishment of my approx 1987 Sharp Innova. It been abused a bit - I lent it to someone who shot steel nails through it and it buggered the accuracy not surprisingly. I pulled it apart and found most of the o-rings were in pretty bad shape so I ordered a kit off ebay. There was also a bit of surface rust on the trigger guard and the pump cylinder. Internally, the chamber and trigger mechanisms appeared to be in great shape.  |
Replies:
Posted By: Deano
Date Posted: 14 Jan 2024 at 2:45pm
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Quite a bit of rust on the pump chamber... 
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Posted By: Deano
Date Posted: 14 Jan 2024 at 2:49pm
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The trigger sear and related parts got a good polish. I had experienced a really notchy trigger at hugh power levels and I'm hoping to fix this. 
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Posted By: Deano
Date Posted: 14 Jan 2024 at 2:50pm
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Trigger assembled into breech, with some marine grease. It's nice and smooth now! 
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Posted By: Deano
Date Posted: 14 Jan 2024 at 2:51pm
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The trigger in place. 
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Posted By: Deano
Date Posted: 14 Jan 2024 at 2:53pm
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The pump chamber after rust removal and first blueing. 
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Posted By: kruzaroad
Date Posted: 14 Jan 2024 at 4:13pm
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What are the pellets in first pic? Thats looking great. You seem to be cleaning it up nicely. Should be a beauty once again. Are those the original valve parts in plastic bag? How you go for sourcing seals etc? Nice crisp photos too. Looking forward to rest of build pics, final assembly and of course testing. |
Posted By: Deano
Date Posted: 14 Jan 2024 at 5:00pm
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Progress... 
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Posted By: Deano
Date Posted: 14 Jan 2024 at 5:03pm
Prometheus and H&N Diabolo... both from the 1980s!!! Don't think the Prometheus went too well in the choked barrel though - not so accurate from memory... Yep all the parts are out of the gun as shown, and there is actually a good amount of seals and orings I think becaause the gun was remanufactured at least 2 times since they stopped the original.   |
kruzaroad wrote:Posted By: Pauly5
Date Posted: 15 Jan 2024 at 9:56am
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That blueing is looking good. What product did you use? Good thread.
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Posted By: Deano
Date Posted: 15 Jan 2024 at 10:03am
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For the blueing I used Birchwood Casey Perma Blue liquid gun blue set. I've applied about 4 coats so far. It's a bit of a trick applying it! It came up all right - I'm looking at the trigger guard right now, that's pretty rusty too. I used the rust remover from the birchwood casey for the pump chamber, but for the trigger guard I'm going to sand it to bare metal I think...
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Posted By: Deano
Date Posted: 15 Jan 2024 at 11:01am
Sanded back to a bare metal finish - ready for a degrease and a blue.... |
Posted By: Deano
Date Posted: 15 Jan 2024 at 11:29am
And done! |
Posted By: RangerPete
Date Posted: 16 Jan 2024 at 10:44am
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Looking good 👍🏻 ------------- Walk quietly, but carry a big stick. |
Posted By: Deano
Date Posted: 16 Jan 2024 at 3:23pm
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The o-ring set arrived today so I put it all back together. It went pretty easily except for finding out the new breech had a piece of moulding sl*g that was stopping the pump cylinder from sliding in all the way... so I had to get creative with sanding something down at the bottom of a long hole! Got there in the end. Also the pump handle doesn't close fully when unpumped, this was an issue before I started so I think I'll add a couple of neobdynium magnets so help it grab against the pump cylinder. Have done a few test pumps / shots with no ammo, it all sounds good and seems to work! Will fire it up with a few actual pellets next....     |
Posted By: Pauly5
Date Posted: 16 Jan 2024 at 3:53pm
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That is looking great! Well done. This makes it all the sweeter to use when you work on your own guns. |
Posted By: Deano
Date Posted: 16 Jan 2024 at 4:17pm
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It sure is! A quick test fire at 6 pumps puts a pellet clean through 1/2" marine ply.... no idea of the fpe or fps but that seems pretty decent, I used to hunt at 12 pumps...
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Posted By: Deano
Date Posted: 21 Jan 2024 at 10:33pm
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Finally got to shoot the gun. Zeroed it with H&N field target pellets, unfortunately the gun doesn't like these pellets they were horribly inaccurate. As in 1.5 inch groups at 20m. Wonder if it's because they are so short? Dunno. So I switched to H&N Barracuda Green... These were on the money with pellets making 10mm groups at 20m! Very happy wit that.
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Posted By: kruzaroad
Date Posted: 22 Jan 2024 at 7:16am
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That looks sweet. Grouping sounds tight with the alloy pellets. You'll have to get the old girl out for a hunt. I leave a pump or 2 in my pumper. Keeps the pump handel coming open and keeps valve seated with a small amount if air pressure as well as spring. Great to see its up and running. Hope to hear how it preforms in the field soon. |
Posted By: RangerPete
Date Posted: 24 Jan 2024 at 7:59am
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Lots of people moan about the “green” pellets, but I always say “shoot what ever is most accurate in ur rifle, regardless is shape weight or price. 10mm groups at 20m… sounds like you’ve got a winner there 👍🏻 ------------- Walk quietly, but carry a big stick. |
Posted By: Deano
Date Posted: 24 Jan 2024 at 8:36am
| Yeah I agree! I'll try a few more of the H&N sampler pack today hopefully to get some softer / heavier options... |
Posted By: Pauly5
Date Posted: 24 Jan 2024 at 8:54am
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I had good results with the green H&N pellets in my .22 Marauder pistol at moderate distances. Nice flat trajectory being light too. They do bounce off things though.
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Posted By: RangerPete
Date Posted: 24 Jan 2024 at 9:24am
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😂😂😂 I can just picture the look on a rabbits face when a green pellet bounces off the side of its head… 😂😂😂 ------------- Walk quietly, but carry a big stick. |