Trailer Hitch -- '04 XC70

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive P2 platform cars sold as model years 2001-2007 (North American market year designations).

2001 - 2007 V70
2001 - 2004 V70 XC (Cross Country)
2004 - 2007 XC70 (Cross Country)
2001 - 2009 S60
2003 - 2007 S60 R
2004 - 2007 V70 R

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E Showell
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Year and Model: V70R '06 AWD Auto
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Trailer Hitch -- '04 XC70

Post by E Showell »

So, I picked up a used Volvo trailer hitch and wiring harness for Ruby Red. The tow bar has a bit of surface rust. Current plan is to remove scale with a wire wheel, wipe down with acetone, Rustoleum rattle can primer followed by Rustoleum gloss black. Treat afterwards with Fluid Film as rust protectant. Sound reasonable?

If not, what should I do differently?
'98 V70 NA FWD 5 spd, silver sand metallic (sold)
'99 V70 NA FWD Auto, dark blue (sold)
'99 S70 NA FWD Auto, black (sold and resurrected -- Don't cry for me Argentina . . . )
'07 S80 3.2 FWD Auto, Barents Blue Metallic
'06 V70 R AWD Auto, Sonic Blue Metallic
'04 XC70 Ruby Red Metallic
'95 855 auto (sold)
'86 245 manual (sold)
'05 V70 T5 M (totalled)
'06 V70 FWD Auto (totalled)

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E Showell
Posts: 3214
Joined: Thu Oct 16, 2008 4:00 pm
Year and Model: V70R '06 AWD Auto
Location: Long Valley, N.J.
Has thanked: 35 times
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Post by E Showell »

Changed to 80 grit sandpaper on a random orbital sander. May go to 60 grit.
'98 V70 NA FWD 5 spd, silver sand metallic (sold)
'99 V70 NA FWD Auto, dark blue (sold)
'99 S70 NA FWD Auto, black (sold and resurrected -- Don't cry for me Argentina . . . )
'07 S80 3.2 FWD Auto, Barents Blue Metallic
'06 V70 R AWD Auto, Sonic Blue Metallic
'04 XC70 Ruby Red Metallic
'95 855 auto (sold)
'86 245 manual (sold)
'05 V70 T5 M (totalled)
'06 V70 FWD Auto (totalled)

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- Pete -
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Year and Model: 01, 04, 04, 04 V70's
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Post by - Pete - »

I had the towbar off our V70 AWD blasted & powdercoated for $65 I think it was. I have access to a big blast cabinet but for $65 I've got much better things to waste time on. They come powdercoated originally. I fear you will see rust fairly soon with rattle can. In MN we have to replace license plates at 7-year intervals because they rot out from salt exposure. I welded a receiver hitch cargo carrier & painstakingly primed & painted it. I bet I had at least a dozen empty cans, if not more. Rust still showed up very quickly, maybe a week or two.

This was prior to last winter & the car gets driven daily in the salt & slush up here. Still looks just as good as it did when I re-installed it.

C432209B-604F-4D59-A014-A439B1FEFFEB.png
2001 V70XC 167k
2004 V70 AWD 147k
2004 V70R M66 146k
2004 XC70 299k
2006 XC70 155k Sold

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E Showell
Posts: 3214
Joined: Thu Oct 16, 2008 4:00 pm
Year and Model: V70R '06 AWD Auto
Location: Long Valley, N.J.
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Post by E Showell »

Will sand to no rust visible, treat with some form of phosphoric acid solution to convert any remaining oxidation to zinc (or so I am told -- where's a good chemist when you need one?) Then rattle can primer with gloss over followed by fluid film. I am told Fluid Film is the next miracle cure. We'll see.
'98 V70 NA FWD 5 spd, silver sand metallic (sold)
'99 V70 NA FWD Auto, dark blue (sold)
'99 S70 NA FWD Auto, black (sold and resurrected -- Don't cry for me Argentina . . . )
'07 S80 3.2 FWD Auto, Barents Blue Metallic
'06 V70 R AWD Auto, Sonic Blue Metallic
'04 XC70 Ruby Red Metallic
'95 855 auto (sold)
'86 245 manual (sold)
'05 V70 T5 M (totalled)
'06 V70 FWD Auto (totalled)

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abscate
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Post by abscate »

E Showell wrote: Tue Feb 18, 2020 2:28 pm Will sand to no rust visible, treat with some form of phosphoric acid solution to convert any remaining oxidation to zinc (or so I am told -- where's a good chemist when you need one?) Then rattle can primer with gloss over followed by fluid film. I am told Fluid Film is the next miracle cure. We'll see.
That would be a good paper, Fe----> Zn plus some energy I bet.

The rust converters haul the Oxygen away from the Iron, stick it onto the Phosphorus, then bind it up leaving a relatively inert

FePO4 instead of crumbly Fe2O3
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary

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E Showell
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Post by E Showell »

So, before I do any more sanding, I may try rust removal with white vinegar and salt. Any spare solution I can use on my fish and chips (although malted vinegar would be better).
'98 V70 NA FWD 5 spd, silver sand metallic (sold)
'99 V70 NA FWD Auto, dark blue (sold)
'99 S70 NA FWD Auto, black (sold and resurrected -- Don't cry for me Argentina . . . )
'07 S80 3.2 FWD Auto, Barents Blue Metallic
'06 V70 R AWD Auto, Sonic Blue Metallic
'04 XC70 Ruby Red Metallic
'95 855 auto (sold)
'86 245 manual (sold)
'05 V70 T5 M (totalled)
'06 V70 FWD Auto (totalled)

User avatar
E Showell
Posts: 3214
Joined: Thu Oct 16, 2008 4:00 pm
Year and Model: V70R '06 AWD Auto
Location: Long Valley, N.J.
Has thanked: 35 times
Been thanked: 87 times

Post by E Showell »

So, ferric phosphate as opposed to ferrous oxide, eh.
'98 V70 NA FWD 5 spd, silver sand metallic (sold)
'99 V70 NA FWD Auto, dark blue (sold)
'99 S70 NA FWD Auto, black (sold and resurrected -- Don't cry for me Argentina . . . )
'07 S80 3.2 FWD Auto, Barents Blue Metallic
'06 V70 R AWD Auto, Sonic Blue Metallic
'04 XC70 Ruby Red Metallic
'95 855 auto (sold)
'86 245 manual (sold)
'05 V70 T5 M (totalled)
'06 V70 FWD Auto (totalled)

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