Canadian Airgun Forum

I've got a HW 97 Blackline STL .177 Cal that for a variety of reasons has been sitting idle for 5 years. It has been stored inside in a dry case so I'm no too concerned about corrosion. I would like to get back into target shooting but was worried the seals may have dried up sitting around for so long. Is there any preventitive maintenance I should do prior to shooting?

Thanks

hi

i have the exact same model and just brought it out of storage after 5 years, shoots just fine and accurate as ever, seems Weihrauch puts very little lube in them, had I run into a problem I would have taken it apart and lubed it with Moly.

I would stay away from chamber lube (rmcoil), just sayin

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Can empty space really exist ?

Get some silicone oil and lube the breach seal and squirt some into the chamber through the TP. Work the piston back and forth without catching the sear. Fire a dozen test shots, then clean the barrel and start target shooting again.
Doubtful seals will have dried out. Breach seal may have taken a set of you stored it with breach closed. I leave my 97 with the breach slightly open.
If you have a chrony, test the speed see if there is any drop - but I doubt it.
If you don't have a chrony - get one.

Here is a lifetime supply of silicone lube - I put that $hit on everything (plastic and rubber only, not for metal-metal lubrication, thats a no no).
https://www.canadiantire.ca/en/pdp/hori ... 0031p.html

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Iacio, ergo sum

Thanks for the quick replies.

5 years isn't that long. As long as it was stored in a attic where it get to be 60c in the summer and -30c in the winter

This. Absolutely this. My TX had been in storage for about a year since I never really got along with its ergonomics. I took it to the range about a few weeks before the pandemic hit. The groups were considerably larger than what I remember. On closer inspection, the cocking lever now had some wobble to it. So I thought maybe the ball detent traveled forward? Asked around the forums and that's where the folks at GTA said that the seal can take a set when stored with the lever closed. Nuts... that was news to me. And what a terrible design flaw! Still looking to get it fixed but really, what's the point right now? All the ranges are closed. Now I store all my springers with the breech slightly open. But oddly enough, it hasn't affected my 77 (the oldest springer I have), and that's always been stored with the breech fully closed.