I've always used the oven to free stuck liners. Works every time.
How many times did you have to hit it to pop the liner out? Gentle hits or "that looks like my mother-in-law" whacks?
True. For me, it went together without issue, and I truly believe that if I had cleaned it at site while still warm, this wouldn't have happened.Great to hear it worked out for you. Out of curiosity, how did the liner fit when you assembled the motor? The first step I do when assembling is check the fit of grains into the liner and the liner fit into the case. If at all tight I do what is necessary to make sure there is a nice fit, no effort needed to insert the the components together, especially the liner into the case.
I'd say it was pretty easy once it was hot.
Don't do any of that. Reverse forward bulkhead, attach all thread at least twice as long as case. Get a second case, can be shorter, butt it against the other case with all thread at least 4 inches past end when both cases are butted together. Get a piece of wood or metal bar stock drilled to fit all thread. Use nut and fender washers on all thread to the block and just crank down on the nut. Draw the liner into the second case. You can probably remove the liner after it starts moving. Trust me, this is the easiest liner removal tool known to man!
Another alternative I used when torch not available [as in hotel room] turn hot water on in tub and hold under spout while rotating and moving back and forth, till the tube is so hot you can barely hold it.[use gloves or towel] then proceed with liner removal. This always worked just as well, but takes longer for heat transfer,[about 15 minutes vs 4-5 with torch]
Don't do any of that. Reverse forward bulkhead, attach all thread at least twice as long as case. Get a second case, can be shorter, butt it against the other case with all thread at least 4 inches past end when both cases are butted together. Get a piece of wood or metal barstock drilled to fit all thread. Use nut and fender washers on all thread to the block and just crank down on the nut. Draw the liner into the second case. You can probably remove the liner after it starts moving. Trust me, this is the easiest liner removal tool known to man!
How many times did you have to hit it to pop the liner out? Gentle hits or "that looks like my mother-in-law" whacks?
Great to hear it worked out for you. Out of curiosity, how did the liner fit when you assembled the motor? The first step I do when assembling is check the fit of grains into the liner and the liner fit into the case. If at all tight I do what is necessary to make sure there is a nice fit, no effort needed to insert the the components together, especially the liner into the case.
I'm really hoping this statement is not about your mother in law.
I only had this happen once, on a Loki 38/1200 case that had cato'd by burning through the center of the forward bulkhead with the K1127. Thankfully there was no damage at all to the case, but the phenolic liner would NOT budge. Until I heated it up in a 350F oven for about 30 minutes.I've always used the oven to free stuck liners. Works every time.
I have to give credit where credit is due. While I had an idea, I just couldn't figure it out so I asked Alan Whitmore if he could come up with some kind of liner removal tool. This is that him and Jim Livingston came up with. It works. Preston Noble had a 2 grain 75 liner stuck. We really had to use a bunch of elbow grease, but we got it out. So here's proper credit to Alan and Jim, thanks guys.
Preston Noble had a 2 grain 75 liner stuck. We really had to use a bunch of elbow grease, but we got it out.
I guess I have been lucky, I grease all liners from one end to the other. Never had one stick, although I try to remove them before sundown on flight day.I stand by my statement. Most of the time when I use grease on the liner, it becomes glued to the case. YMMV
I guess I have been lucky, I grease all liners from one end to the other. Never had one stick, although I try to remove them before sundown on flight day.
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