Login Register

Top Five Ways to Break Loose a Fastener - Hagerty

Post Reply
User avatar
BlackBart
Posts: 6729
Joined: 10 Dec 2016, 17:03
Year and Model: 2004 XC70 BlackBetty
Location: Over the far far mountains
Has thanked: 967 times
Been thanked: 923 times

Post by BlackBart »

https://www.hagerty.com/media/maintenan ... 1134a7530b

First, I never use Level 5 with an open end wrench. I rarely touch them.

Second, I don't see the Abscate Smoke Wrench technique until the comments below.

Something I realize is that I never think of a bit of loosening, tighten again, loosen again, in stages. That's smart. You're just trying to break the bond of the rust or corrosion. However, recently I had some fasteners that through galvanic corrosion had essentially become one with the threads of the bracket they were in. I ended up drilling them out and re-tapping.
ex-1984 245T wagon
1994 850T5 wagon
2004 XC70 wagon BlackBetty

User avatar
volvolugnut
Posts: 6515
Joined: 19 Jan 2014, 09:51
Year and Model: 2001 V70
Location: Oklahoma USA
Has thanked: 987 times
Been thanked: 1078 times

Post by volvolugnut »

I had hoped this link would be for the things you do after Level #1 but before breaking the bolt. Things like thread lubricants and heat.
volvolugnut
The Fleet:
Volvo: 2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple Volvo parts cars.
Mercedes: 2001 E320, 1973 280, 1974 280C, 1989 300E, 1988 300TE, 1979 300TD, parts cars.
2009 Smart Passion
Ford: 1977 F350, 1964 F150 (2), 1938 Tudor Sedan
Farmall tractors: 1956 400 Diesel, 1946 A
John Deere 214 lawn tractor about 1977 model
And others.

User avatar
abscate
MVS Moderator
Posts: 36175
Joined: 17 Feb 2013, 17:54
Year and Model: 99: V70s S70s,05 V70
Location: Port Jefferson Long Island NY
Has thanked: 1614 times
Been thanked: 4078 times

Post by abscate »

I think it is a bit tongue in cheek. Releasing Stuck fasteners is rarely done by more torque , as rust bonding quickly exceeds the strength of standard hardware, in which case it just breaks

If it’s a through bolt, like the bolts holding the spindle on the strut, snap them off with the biggest breaker you have, since you are using the new ones Volvo shipped you with your strut, right?

If it’s a water pump bolt, you just lost your weekend to a horrible drill out job.

I am a big fan of applying heat to fasteners I don’t want to drill out, 30 seconds at a time, with 3-4 heat cool cycles. For about $50 you can get a oxy MAPP torch with a hot pinpoint flame that lets you heat in tight corners
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread

Post Reply