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What causes alignment/cam bolts to seize? #4456370
07/11/17 02:42 PM
07/11/17 02:42 PM
Joined: Jan 2009
Posts: 2,460
Rochester, MI, US, World
Klutch9 Offline OP
Klutch9  Offline OP
Joined: Jan 2009
Posts: 2,460
Rochester, MI, US, World
I couldn't find a satisfying answer to this question on the internet, so I pose it to you... what causes those cam alignment bolts to freeze inside the bushing? I've worked on plenty of cars; old, rusty ones too, and I've never really had an issue getting big suspension bolts out. Enough PB Blaster and a long breaker bar will solve any problem.

But now I have to replace one of the rear lateral links on the Sedona, and one end is secured by a cam bolt to set the toe in/out. I've heard numerous horror stories about these bolts in particular being absolutely seized to the bushing they pass through, but I can't think of a logical reason why these would freeze more so than a regular bolt. Wouldn't the 'cammed' portion actually provide less metal-to-metal contact, making it easier to remove? Just curious. I've done some work on this van lately, and all bolts have been nearly rust-free and came out easily, even some very large ones. But the cam bolt seems quite rusty in contrast ???


'11 Fusion SE 2.5L - 79k miles - HK 0w20 syn, Wix XP filter
'08 Sedona LX LWB 3.8L - 126k miles - Havoline HM 5w20, Auto7 filter
Re: What causes alignment/cam bolts to seize? [Re: Klutch9] #4456373
07/11/17 02:49 PM
07/11/17 02:49 PM
Joined: Dec 2015
Posts: 261
Ontario Canada
Canadastang Offline
Canadastang  Offline
Joined: Dec 2015
Posts: 261
Ontario Canada
I'm thinking that it's a perfect storm of two washers allowing moisture to get trapped in the sleeve, combined with the extra 'space' around the bolt due to its shape that allows a whole pile of moisture, sand, salt, crud etc to works its way in and get stuck there.

Or maybe whomever's supplying all of these cam bolts is doing a [censored] job of treating them for corrosion resistance.

I've had the same experience too, when all the other bolts come out, the cam bolts get stuck and need a torch and some hammer persuasion.

Re: What causes alignment/cam bolts to seize? [Re: Canadastang] #4456378
07/11/17 02:54 PM
07/11/17 02:54 PM
Joined: Jan 2009
Posts: 2,460
Rochester, MI, US, World
Klutch9 Offline OP
Klutch9  Offline OP
Joined: Jan 2009
Posts: 2,460
Rochester, MI, US, World
That's a possibility. My van is from Kentucky and has only experienced 4 Michigan winters, so hopefully it won't be a bear to remove.


'11 Fusion SE 2.5L - 79k miles - HK 0w20 syn, Wix XP filter
'08 Sedona LX LWB 3.8L - 126k miles - Havoline HM 5w20, Auto7 filter
Re: What causes alignment/cam bolts to seize? [Re: Klutch9] #4456446
07/11/17 04:14 PM
07/11/17 04:14 PM
Joined: Jan 2004
Posts: 4,155
California
nthach Offline
nthach  Offline
Joined: Jan 2004
Posts: 4,155
California
Did the van ever get an alignment in its life? Most techs will torque things down by hand as not to disturb the cams once set, but don't rule out the fact impact tools might be used.

Re: What causes alignment/cam bolts to seize? [Re: nthach] #4456458
07/11/17 04:27 PM
07/11/17 04:27 PM
Joined: Jan 2009
Posts: 2,460
Rochester, MI, US, World
Klutch9 Offline OP
Klutch9  Offline OP
Joined: Jan 2009
Posts: 2,460
Rochester, MI, US, World
Originally Posted By: nthach
Did the van ever get an alignment in its life? Most techs will torque things down by hand as not to disturb the cams once set, but don't rule out the fact impact tools might be used.


It's been been aligned once since I bought it (I think). But if the rear toe wasn't out of spec, they wouldn't have been touched.


'11 Fusion SE 2.5L - 79k miles - HK 0w20 syn, Wix XP filter
'08 Sedona LX LWB 3.8L - 126k miles - Havoline HM 5w20, Auto7 filter
Re: What causes alignment/cam bolts to seize? [Re: Klutch9] #4456486
07/11/17 05:07 PM
07/11/17 05:07 PM
Joined: Oct 2014
Posts: 11,844
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 11,844
Idaho
Rust.


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: What causes alignment/cam bolts to seize? [Re: Klutch9] #4456696
07/11/17 08:34 PM
07/11/17 08:34 PM
Joined: Jun 2002
Posts: 12,518
The Motor City
Kestas Offline
Kestas  Offline
Joined: Jun 2002
Posts: 12,518
The Motor City
When doing repairs, I pack these gaps with antiseize to help keep bolts from freezing in their sleeves.

Re: What causes alignment/cam bolts to seize? [Re: Kestas] #4456729
07/11/17 08:55 PM
07/11/17 08:55 PM
Joined: Jan 2009
Posts: 2,460
Rochester, MI, US, World
Klutch9 Offline OP
Klutch9  Offline OP
Joined: Jan 2009
Posts: 2,460
Rochester, MI, US, World
Originally Posted By: Kestas
When doing repairs, I pack these gaps with antiseize to help keep bolts from freezing in their sleeves.


I'll be slathering the cammed portion with some moly grease when I put it back together.


'11 Fusion SE 2.5L - 79k miles - HK 0w20 syn, Wix XP filter
'08 Sedona LX LWB 3.8L - 126k miles - Havoline HM 5w20, Auto7 filter

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