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Mayvik · 04-09-2008, 02:17 PM

Background: I have a beater LB (one of MadLarkin's) that I'm looking to "upgrade" to pneumatic assist, and am looking for a way to install the LPR. My original plan was tap the front plug on the chamber for 1/8"NPT, install a straight macro fitting, run macro up the front tube, and then install the LPR where the front tube plug is. That idea was thwarted because that plug is apparently permanently attached to the lower tube.

My new plan was to replace the air line with macroline or hardline, and cutting a slot in the side of the lower tube. Finding appropriate 10-32 threaded T-fittings for macroline is proving to be a PITA, and I'd rather do a minimal amount of hacking if possible. I'm now thinking it may be easier to just remove the plug, tap it as planned, and then reinsert it.

My question is: Is that plug just soldered in? Can I just apply heat + hammer and knock it out, or is it fastened some other way. There appears to be a spot weld on the bottom of the lower tube, is that something I'll need to deal with? Not exactly sure how I'm going to reinstall it but I'll figure that out when the time comes.

04-09-2008, 02:17 PM	#1 (permalink)
Mayvik 1-866-MEAT-4-YU Join Date: May 2007 Location: Binghamton NY	LB Valve Chamber Plug Background: I have a beater LB (one of MadLarkin's) that I'm looking to "upgrade" to pneumatic assist, and am looking for a way to install the LPR. My original plan was tap the front plug on the chamber for 1/8"NPT, install a straight macro fitting, run macro up the front tube, and then install the LPR where the front tube plug is. That idea was thwarted because that plug is apparently permanently attached to the lower tube. My new plan was to replace the air line with macroline or hardline, and cutting a slot in the side of the lower tube. Finding appropriate 10-32 threaded T-fittings for macroline is proving to be a PITA, and I'd rather do a minimal amount of hacking if possible. I'm now thinking it may be easier to just remove the plug, tap it as planned, and then reinsert it. My question is: Is that plug just soldered in? Can I just apply heat + hammer and knock it out, or is it fastened some other way. There appears to be a spot weld on the bottom of the lower tube, is that something I'll need to deal with? Not exactly sure how I'm going to reinstall it but I'll figure that out when the time comes.