Recent content by Bill_S

IN

With the gun assembled, the transfer port is difficult to measure. It appears to be approximately 1/8 inch (~3.18 mm) diameter using a steel rule placed across the opening. It could be smaller than that. For another data point, I used a small 0.129 inch (~3.28mm) diameter machine screw to use...

I'll try to measure an approximate diameter of the transfer port later today. The Leupold scope is a 3-9x33 EFR. Within the first year of usage it developed an issue and I sent it in for repairs. Since then, I have had zero problems with that scope. Leupold customer service was very good - at...

Unfortunately, no, I did not measure the stroke. Sorry!

I put another couple dozen pellets through it and the average velocity is climbing. This morning's last 12 shots averaged 773 fps, with a high of 780 fps and a low of 768 fps. With these pellets, that's a little under 19 foot-pounds. That's down from when the rifle was new in the late '90s...

The cocking arm was pinned onto the barrel, and secured with a new e-clip. I lubed the top hat and inserted that inside the piston, then lubed the original spring with Maccari "black tar". Man, that stuff is messy. The spring and guide were inserted, and it was time to put on the trigger...

I've finished repairing the gun, and it's now firing just fine. After four dieseling shots, I got an average of 766 fps on the first ten shots. I am using Crosman Premier .22 cal, 14.3 grain pellets to test it. It took quite a bit of sanding to reduce the diameter of the seal to fit. Once I was...

Thanks! If it were easy to find parts, and everything fit together nicely, there would be no need to create this thread. However, that's not the case. When I was looking around the 'net for repair information, I found very little. I decided to collect my experiences along the way to benefit...

I made a little wooden right-angle fixture to hold sandpaper square when it is used on the drill press table. After it dried, I chucked the piston into the drill press and indicated it to reduce runout. With some finagling of how it was chucked, I reduced runout to a total travel of 0.003"...

I've been busy with other things, and I've finally returned to the shop to work on this. I've glued the seal to the piston. I began by cleaning the piston with 91% alcohol, and the seal with soap & water first, followed by isopropyl. I applied the Loctite primer to the seal. It's meant for...

My Maccari spring has the highest calculated rate of the four springs that I have on hand. It's thicker wire than the others. One positive aspect is that it fits the original spring guide nicely, but it has one badly squared end that will require work. Because of the higher spring rate and the...

I popped a seal onto the piston (no glue yet) to assess the fit in the tube. Without any lubrication, this is as far as I could insert the piston... When tugging and wriggling the piston back out, the seal popped off. That's concrete evidence that it needs glued on to be secure. I can glue...

I did more work on honing the compression tube. There was a tight spot just forward of the trigger, and it must be because of all the slots and holes punched into the tube in that area. I marked the center of the bass lap's shaft... Center punched it, and used a stubby center drill to make...

Work has been slow, but the parts from the Countrystore/ Airgun Spares in the UK finally arrived. Most of the delay in shipping was a stop in Chicago where the order sat for weeks. I purchased three OEM seals, two piston rings, one e-clip (that's all they had in stock), a Pro Elite spring...

I just looked them up, and indeed, they do have a lot of different parts for the Pro Elite. Thanks for the lead! I'll make a note of that resource. The parts that I ordered from Airgun Spares/Countrystore UK have been stuck in Chicago for two weeks now. I expect that it will get sent along any...