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Re: P80 Pro-Parts parking brake cable issue

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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Year and Model: 2000 V70 R
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Re: P80 Pro-Parts parking brake cable issue

Post by scot850 » Sun Mar 26, 2017 11:00 pm

I have been in contact with FCP Euro from whom I bought a pair of Pro-Parts Sweden parking brake cables for my 2000 V70 NA project. I have been trying to keep costs down and normally would not use non-OE parts but at 1/4 of the OE part price from FCP and several 4-5 star ratings by users of the parts it was worth the savings surely! Well once again the aftermarket crap part has bitten me in the butt.

I had completed all the repairs (I thought) at the rear of the car and all I had to do was drop the car back on the ground after fitting the rear wheels. As normal I spun the wheels to ensure all was good, but found that they were rubbing on something. Looking up behind the wheels showed the parking brake cables were rubbing against the rear of the wheel rim and tire on one side and bound the other side.
Front LH seat and Parking brake cable issue 020.JPG
Pro-part cable binding on rear wheel and tire
I couldn't understand what I had done wrong at first, so took the approach of removing the tire and doing some basic checks. I also posted a request note on VS for help. Robert replied and part of his note was a reminder there should be a plastic tie-back between the rear hub and the mounting point just forward of the rear wheels which pulls the cable away from the wheel and tire. In my defense I have only replaced the parking brake cables on one P80 FWD and that was over 10 years ago and this car had neither tie-back in place and dirt covered the rivet point holes. Usually over time the rivet (aluminum) and the steel of the training arm react and the rivet fails or the plastic band snaps off once it has flexed many times due to plastic aging and flexing. This is how mine were after cleaning the remains of the rivet out. You can see that the Pro-Parts cable has a large gap between it and the trailing arm. I tried to bend it back to where it needed to be but it only pulled the cable out of the rear of the hub:
Pro-Parts parking brake cable issue 004.JPG
Gap between mounting and cable
I had kept the original cables I removed and measured the length of the cable between the hub and the mounting point forward of the rear wheel:
Front LH seat and Parking brake cable issue 018.JPG
Measures from here on the hub
Pro-Parts parking brake cable issue 005.JPG
To here at the mounting
With the cable tired back correctly, the cable now has plenty of gap between it and the wheel rim and tire:
2017-03-26 Volvo OE Parking brake cable 008.JPG
OE cable fitment
The overall length of the cables is the same, but it would appear either there is a bad batch out there or the basic manufacturing design from Pro-Parts is faulty. The difference in length of the 2 cables between these 2 points was 1.5" approx.
2017-03-26 Volvo OE Parking brake cable 003.JPG
The difference can be seen here
Once I fitted the Volvo OE cables shipped from FCP they look like this:
2017-03-26 Volvo OE Parking brake cable 005.JPG
Hold back strap in place
I have communicated this info to FCP Euro and they are investigating. They shipped out OE cables for cost difference between the parts.

Naturally the work could not go to plan as in trying to remove the Pro-Parts cable on one side the retaining finger in one of the parking brake regulators at the hub snapped off. Now have had to order a new one at $50 CDN from dealer to complete the job.

I hate doing work more than once, and have to say I used to think the AWD cables were a pain, but have to say the FWD are worse. This is mostly to do with the corrosion that forms between the hub and the cable end where it fits. It took a while to figure out why the OE cables would not fit but the Pro-Parts would. The Pro-Parts cable end at the hub is a much more flexible plastic. This allowed it to bend over the rust in the hub to fit. There was no way the OE cables would go in. I have seen several threads on this issue being blamed on the slightly thicker 'O' ring seal on the after market parts. I had swapped these for Volvo parts before fitting, so assumed the OE parts would fit ok. Eventually I realised there was a layer of rust at the end of the hub opening. In true Volvo engineering style, it is near impossible to access until I used my Dremel and some of the fittings it came with to remove this layer. Then with a little Vaseline and a little wiggling they popped into place.

Doing these again (no plans I hope) would make the job easier, but what a pain!

Only bonus (and not a good one) was I found the front fuel pipe seal at the fuel filter is weeping. Another job to investigate. Man are these cars a endless source of pain!

2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

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