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Post by battle1066 on Sept 20, 2021 21:38:27 GMT
I've not got the chinky blow torch as I have a couple of the superfire 2's still in service. I have many adjustable spanners and pump pliers, some good and some shite ! My old mentor would always say the best tool for undoing pump valve unions is a big adjustable spanner or normal spanner, he said to me pump pliers give the union nuts to much pressure in where they bite and union nuts are quite flimsy causing the nut to dig in too much to the pump thread making it a harder job. A spanner will always give equal load pressure on the nut surface as it's flat to flat, thus helping in undoing the union. I've always followed that logic and it seems to work .  Never looked at it like that but it makes perfect sense although I much prefer spanners to grips - less blood lost! |
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Post by cylinderfella on Sept 20, 2021 22:07:55 GMT
Love that blow torch!
Anyone ever have to go the hammer and chisel option with a pump valve nut?
One time they were so stuck that was the last resort, place the chisel on the nut and a couple of quick belts to loosen.....a bit scary though.
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Post by cylinderfella on Sept 20, 2021 22:21:02 GMT
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Post by pb on Sept 20, 2021 22:22:33 GMT
Love that blow torch! Anyone ever have to go the hammer and chisel option with a pump valve nut? One time they were so stuck that was the last resort, place the chisel on the nut and a couple of quick belts to loosen.....a bit scary though. Hi Cinders, how's it going mate ? Yes done that method many times, normally in tight spots or on oil fired boilers with the pump in the housing. |
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Post by cylinderfella on Sept 20, 2021 22:24:46 GMT
Yeah, scary when all the surrounding pipes are clanging and vibrating, wondering if you're creating a flood of epic proportions  |
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Post by cylinderfella on Sept 20, 2021 22:27:40 GMT
Good to talk to you PB, hope you're not on the strong ribena tonight!!
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Post by pb on Sept 20, 2021 22:27:55 GMT
Yeah, scary when all the surrounding pipes are clanging and vibrating, wondering if you're creating a flood of epic proportions If all fails.....leg it  |
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Post by cylinderfella on Sept 20, 2021 22:28:25 GMT
Every time!!
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Post by pb on Sept 20, 2021 22:28:52 GMT
Good to talk to you PB, hope you're not on the strong ribena tonight!! Sugar free tonight, early start  |
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Post by cylinderfella on Sept 20, 2021 22:31:01 GMT
Good to talk to you PB, hope you're not on the strong ribena tonight!! Sugar free tonight, early start   |
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Post by dickpuller on Sept 21, 2021 4:59:49 GMT
Love that blow torch! Anyone ever have to go the hammer and chisel option with a pump valve nut? One time they were so stuck that was the last resort, place the chisel on the nut and a couple of quick belts to loosen.....a bit scary though. Ah, you see there’s galvanic corrosion going on with Circulation Pump Union nuts. It’s a ‘dry’ joint between the two metals, where on radiators etc there’s a compound joint separating the two. The pump Union nut is adhered to the cast pump. Heat is by far the best way to loosen the nut. Let’s not forget the Expanders, the Chinky Swaging Tool, still as cheap as chips; www.ebay.co.uk/itm/185063271480 |
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Post by crowsfoot on Sept 21, 2021 18:43:24 GMT
I always give the pump nuts a good blast of heat first (with me chinky blow lamp of course) followed by a good spay of WD40 it makes a big difference and they then usually yield easily. Never WD40 first mind you!  |
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Post by pb on Sept 21, 2021 19:28:26 GMT
Sugar free tonight, early start  |
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Post by pb on Sept 21, 2021 19:34:35 GMT
I always give the pump nuts a good blast of heat first (with me chinky blow lamp of course) followed by a good spay of WD40 it makes a big difference and they then usually yield easily. Never WD40 first mind you! I normally spray them first with WD40 and then get tools in and set up while the WD gets to work, I find most times the unions will give fairly easy with not too much of a battle. Everyone has their own ways of what works best for them |
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Post by woodbine66 on Sept 21, 2021 19:58:59 GMT
The proper pump nut spanner usually shifts them, but if space is tight the hammer and chisel method works wonders.
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