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PV, 120 (Amazon), 1800 General Forum for the Volvo PV, 120 and 1800 cars |
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Amazon brake bias valveViews : 598 Replies : 9Users Viewing This Thread : |
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Jan 18th, 2022, 20:09 | #1 |
Member
Last Online: Apr 22nd, 2024 15:12
Join Date: Feb 2012
Location: Kent
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Amazon brake bias valve
Hello everyone!
Its been some time since I have posted on here, thats probably because my Amazon has been giving me loads of fault free miles. Until now.... its become aparent my rear brakes might have stopped working some time ago... maybe a year and 4000 miles when I started to notice the lack of rear brakes! Now its winter and I have swapped to some early rims with very old tyres and can now confirm the rear brakes are just an ornament! So the Amazon is a 67 estate with single line brakes, no servo. My idea is, fit a remote servo and bin the dodgy bias valve. What do you guys think? Looking on brookhouse it suggests some cars had them and some didnt, but not 100% sure or not. Any thoughts? |
Jan 18th, 2022, 20:20 | #2 |
Senior Member
Last Online: Today 21:32
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Location: eastsussex
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Hi
the dodgy bias valve has saved your life it has clicked over and stopped the brake fluid ****ing out the back and if it happened 4000 miles ago what other faults have happened you have not noticed |
Jan 18th, 2022, 21:22 | #3 |
Chief Bodger
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Location: Aberdeen
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Jan 18th, 2022, 23:00 | #4 | |
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Jan 19th, 2022, 04:46 | #5 |
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Location: Alberta
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Welcome back. While I don’t have the expertise of Rob, a suggestion might be to look at rebuilding your valve, or replacing with a new one. Last I looked they were available, as well as the kits. I’ve read over the years that eliminating the valve can be a risky proposition. They are part of the braking system for a good reason.
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Jan 19th, 2022, 05:57 | #6 | |
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https://www.classicvolvoparts.co.uk/part.asppID=8656&carID=3&cID=49&scID=332&page=SING LE+CIRCUIT+REAR+BRAKE+PRESSURE+REGULATOR%2E+NOTE+S OME+AMAZON+CAR+CAME+FROM+THE+FACTORY+WITH+A+REGULA TOR+FITTED+AND+OTHERS+DID+NOT%2E+ONLY+USE+IF+YOUR+ CAR+ALREADY+HAS+ONE+FITTED%2E+ Alan
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Jan 19th, 2022, 13:39 | #7 |
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Location: Chatham
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First check would be to remove the drums to check the brakes. They may well be in the same condition as Othens. Does the handbrake lock up the wheels on a loose surface? Of course an MOT would give you numbers and a good idea as to how they are performing.
Early Amazons without the valve use different size brake cylinders. |
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Jan 19th, 2022, 18:22 | #8 |
Senior Member
Last Online: Today 09:44
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Location: Andover
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Hi Tom
Got the brake bias valve on my 1966 131 rebuilt by Past Parts Ltd, Suffolk, at a cost of £124.50. Phil |
Jan 19th, 2022, 20:17 | #9 | |
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Jan 21st, 2022, 20:40 | #10 |
Trader Volvo in my veins
Last Online: Today 20:52
Join Date: Dec 2004
Location: Anglesey
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I would suggest either having it rebuilt or failing that you can use a mechanical line limiter
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