Good blowtorch? - Page 2

4x4 · Jan 13th, 2018, 16:48

Bernzomatic torch and a bottle of app gas. not cheap but great quality and will last for years

sreviz · Jan 13th, 2018, 19:13

Thank you so much!!!!!

luggsey · Jan 13th, 2018, 20:59

I just got one of these for plumbing work.

https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1

They are solid and heavy construction.

Map gas from tool station or use cheaper propane if you don't need greater heat.

https://www.toolstation.com/shop/Han...ylinder/p71066

It's free delivery as it's just over a tenner.

The benzomatic in the post above is identical to a Rothenberger, good stuff but pricey for occasional use.

id5 · Jan 14th, 2018, 12:33

You can heat seized bolts up with all of the different gasses, they all burn hot enough as faint red steel is at 930c

1970c Butane
1980c Propane
2980c MAPP
3100c Oxy/Acetylene

The difference is in the torch tip and the amount of gas being burnt. The bigger the torch tip the bigger the size of bolt you can heat. If it doesn't produce heat fast enough you will just burn through a bottle or can of gas and only get it warm. The bigger the tip the faster the gas burns. If the bolt is surrounded by a bigger lump of metal then you will need an even bigger torch tip. For a 1/4" to 1/2" bolt you will need a tip that will at least produce 2 to 3 kilowatts.

sreviz · Jan 14th, 2018, 14:26

Quote:

Originally Posted by id5

You can heat seized bolts up with all of the different gasses, they all burn hot enough as faint red steel is at 930c

1970c Butane
1980c Propane
2980c MAPP
3100c Oxy/Acetylene

The difference is in the torch tip and the amount of gas being burnt. The bigger the torch tip the bigger the size of bolt you can heat. If it doesn't produce heat fast enough you will just burn through a bottle or can of gas and only get it warm. The bigger the tip the faster the gas burns. If the bolt is surrounded by a bigger lump of metal then you will need an even bigger torch tip. For a 1/4" to 1/2" bolt you will need a tip that will at least produce 2 to 3 kilowatts.

That was a good explanation. I was trying to heat the tie rod nut wirh small propane torch. And as you said it just burnt the gas....

Jan 13th, 2018, 16:48	#11
4x4 Premier Member Last Online: Today 18:36 Join Date: Dec 2017 Location: North of Hadrian's Wall & South of Antonine's Wall View Photos By: 4x4	Bernzomatic torch and a bottle of app gas. not cheap but great quality and will last for years __________________ MY2010 XC90 SE (M66-manual) Magic Blue (467) Sold MY1997 850 GLT (62,000 miles) Silver Sand (419) MY2005 V70 2.5T (66,000 miles) Willow Green (471) Volvo 850 GLT website

Jan 13th, 2018, 19:13	#12
sreviz Master Member Last Online: Feb 18th, 2024 17:07 Join Date: Dec 2014 Location: London, Wallington	Thank you so much!!!!! __________________ Volvo Xc90 D5 2005 Euro 3 D5244T- Auto. Volvo V40 D2 2016 cross country Engine D4204T8.

Jan 13th, 2018, 20:59	#13
luggsey The truth is out there... Last Online: Aug 10th, 2021 08:43 Join Date: Feb 2016 Location: Barnstaple	Blowlamp I just got one of these for plumbing work. https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1 They are solid and heavy construction. Map gas from tool station or use cheaper propane if you don't need greater heat. https://www.toolstation.com/shop/Han...ylinder/p71066 It's free delivery as it's just over a tenner. The benzomatic in the post above is identical to a Rothenberger, good stuff but pricey for occasional use. __________________ It's a dogs life! XC70 D5 2006 244K Still chugging! CRV 2.2 2006 216K Reactivated.

Jan 14th, 2018, 12:33	#14
id5 Premier Member Last Online: Mar 28th, 2020 09:15 Join Date: Dec 2012 Location: Towcester	You can heat seized bolts up with all of the different gasses, they all burn hot enough as faint red steel is at 930c 1970c Butane 1980c Propane 2980c MAPP 3100c Oxy/Acetylene The difference is in the torch tip and the amount of gas being burnt. The bigger the torch tip the bigger the size of bolt you can heat. If it doesn't produce heat fast enough you will just burn through a bottle or can of gas and only get it warm. The bigger the tip the faster the gas burns. If the bolt is surrounded by a bigger lump of metal then you will need an even bigger torch tip. For a 1/4" to 1/2" bolt you will need a tip that will at least produce 2 to 3 kilowatts. __________________ XC60 MY15 SE Lux Nav D5 AWD, Power Blue/Beige, Pano, Tints, Winter Illum Pack, Front Beepers, Tempa Spare Evoque 2019 P300 HSE Seoul Silver, Matrix LED, Cloud Interior, Pano Roof Amarok 2019, Starlight Blue, Nav Tech, Lights & Vision, Bars, Towball

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