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PV, 120 (Amazon), 1800 General Forum for the Volvo PV, 120 and 1800 cars |
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Jan 10th, 2021, 09:30 | #11 |
arcturus
Last Online: Yesterday 07:59
Join Date: Mar 2006
Location: Sagres Portugal
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Don't. I have the Vauxhall system on my 144 and regretted it ever since.Switching it off doesn't give back the road feel.
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Jan 10th, 2021, 10:07 | #12 |
Chief Bodger
Last Online: May 7th, 2024 21:01
Join Date: Oct 2009
Location: Aberdeen
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If it means using the car and not using it then it’s a no brainer.
Only professional ones I’ve seen installed are the EZ. There was a guy who’s business was to fit them and he would come to you and do it. Back in the early days they were said to be the Corsa C PAS. No idea if that is true. A system with good speed / resistance would be the ideal. You use to be able to buy a wee control system from eBay which controlled the resistance with a knob, turn it up to park and down for the motorway etc. Not sure if you can buy a speed controller these days so it does it all automatically for you. There might also be power steering boxes out there that could be adapted, never see anyone do it though. Also never seen anyone properly fit rack and pinion to a RHD car either. Electric PAS is probably the easiest route for you. The system you referenced looks good from a glance, have you spoken to them? Can you try it out and see what it is like. You may need to upgrade your alternator and battery as well so check that with them. https://www.dcemotorsport.com/Home/EPAS
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Jan 10th, 2021, 11:15 | #13 |
Senior Member
Last Online: Dec 29th, 2022 11:47
Join Date: Jun 2019
Location: Thorndon, near Eye, Suffolk, England
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142, great education on caster etc! That explains a lot.
EZ system assistance is speed sensitive. I have no issues with steering feel either. |
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Jan 10th, 2021, 11:34 | #14 |
Chief Bodger
Last Online: May 7th, 2024 21:01
Join Date: Oct 2009
Location: Aberdeen
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How much is it for the kit and for installation if you don’t mind sharing? Have you got yours on a P1800? The Mrs enjoys driving the cars but two things she would like is retractable belts and power steering.
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Jan 10th, 2021, 11:41 | #15 |
Senior Member
Last Online: Dec 29th, 2022 11:47
Join Date: Jun 2019
Location: Thorndon, near Eye, Suffolk, England
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£1,785 inc Vat. Which is definitely at the top end of what is available, but it comes with clear instructions and seems high quality. Mine is on an 1800E.
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Jan 10th, 2021, 13:12 | #16 |
VOC Member
Last Online: Yesterday 21:31
Join Date: Jul 2006
Location: Chatham
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A good explanation from 142. With the 240, the lower outer front suspension joints are different for PAS and non PAS. This makes the caster different as mentioned. Any car that was not originally fitted with PAS might have it optimised for that. "Our" cars which have models with and without PAS may also have different joints. There aren't many of these and maybe Volvo didn't address this until the 240. Exploring the parts books might find something. It could be that different lower A arms could use the same ball joints to do the same thing but different ball joints would be simpler and cheaper.
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Jan 10th, 2021, 14:25 | #17 | |
Chief Bodger
Last Online: May 7th, 2024 21:01
Join Date: Oct 2009
Location: Aberdeen
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Quote:
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Jan 10th, 2021, 18:52 | #18 | |
Master Member
Last Online: Yesterday 15:27
Join Date: Jul 2020
Location: Saskatchewan, Canada
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Quote:
The 140 parts book does list different lower A arms; but, they are associated with bias ply or radial ply tire fitment. 648765 / 648766 are for bias ply and 648767 / 648768 are for radial fitment. The only reference (non Volvo) that I have found indicates that the bias ply versions were fitted up to 1969; but, the parts manual does not indicate a change by chassis number so who knows? The references that I can find indicate that the recommended alignment settings did not change during the production run (at least up to 1972) so I don't know what the change in A arm for bias versus radial was to accomplish. The steering knuckle did change twice during the production run; but, these were all early changes before the production numbers got past 5 digits. The parts manual does include the power steering option for the 140; however, as far as I could determine there were no suspension component changes associated with power steering. Unlike the 240, the 140 with upper and lower wishbones and the shim adjustments on the upper wishbones is adjustable for both caster and camber. The service manual does not specify limits on the adjustability; but, I have seen pictures and read first hand reports of some pretty extreme stacks of shims, mostly in aid of increased negative camber. I went back and looked at my notes from my wheel alignment that I did on the car. Unfortunately, as much as I can decipher from my chicken scratches, I do not have a record of total shim thickness. I just recorded the initial camber and caster and the change in shim thickness required to get the results I wanted. From my final scratches it appears that I ended up with a camber of approximately - 0.5 deg and casters of 1.6 deg (L) and 1.8 deg (R) with a final toe in of what looks like 2 mm. My stack of shims is modest compared to what I have seen which probably reflects my rather modest -0.5 deg of camber. At the end, I know I was fiddling with 1/32" shims to get the alignment values in the correct range. |
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Jan 10th, 2021, 19:21 | #19 | |
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The 2008 Versa column EPS I am using and I expect the Toyota Prius and most recent EPS units have dropped the pulse speed signal and use a speed signal provided over the vehicle CAN network. Electronic hardware costs being what they are these days, you could probably purchase a GPS receiver and one board controller such as a Teensy for around $60 and program it to upload vehicle speed over the CAN to the EPS unit for variable assist. If you were inclined, you could shape the speed signal dumped on to the CAN to taper off assist if you wanted. If you were so inclined for $10 you could add an LCD display for a GPS speed signal if you don't trust your speedometer. The biggest impediment to me doing this is that Nissan and their suppliers don't make things like their CAN protocol and the memory location for the speed variable freely available. If you had a working car, a logic analyser and some spare time you could probe the CAN bus to figure this out. Aside from my lack of an analyser the Versa that the EPS unit came out of was decidedly non operational. |
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Jan 10th, 2021, 19:26 | #20 | |
Chief Bodger
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One day I will get rid of all of the rust. Last edited by Burdekin; Jan 10th, 2021 at 19:29. |
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