Volvo Community Forum. The Forums of the Volvo Owners Club

Forum Rules Volvo Owners Club About VOC Volvo Gallery Links Volvo History Volvo Press
Go Back   Volvo Owners Club Forum > "Technical Topics" > PV, 120 (Amazon), 1800 General

Notices

PV, 120 (Amazon), 1800 General Forum for the Volvo PV, 120 and 1800 cars

Information
  • VOC Members: There is no login facility using your VOC membership number or the details from page 3 of the club magazine. You need to register in the normal way
  • AOL Customers: Make sure you check the 'Remember me' check box otherwise the AOL system may log you out during the session. This is a known issue with AOL.
  • AOL, Yahoo and Plus.net users. Forum owners such as us are finding that AOL, Yahoo and Plus.net are blocking a lot of email generated from forums. This may mean your registration activation and other emails will not get to you, or they may appear in your spam mailbox

Thread Informations

Power steering for your 120,140,1800 & ES

Views : 4414

Replies : 46

Users Viewing This Thread :  

Reply
 
Thread Tools Display Modes
Old Oct 24th, 2020, 15:21   #31
Burdekin
Chief Bodger
 
Burdekin's Avatar
 

Last Online: Yesterday 22:00
Join Date: Oct 2009
Location: Aberdeen
Default

A power steering box is another option.
__________________
One day I will get rid of all of the rust.
Burdekin is offline   Reply With Quote
Old Oct 24th, 2020, 18:28   #32
classicswede
Trader Volvo in my veins
 
classicswede's Avatar
 

Last Online: Dec 1st, 2020 14:13
Join Date: Dec 2004
Location: Anglesey
Default

Electric steering does not feel nice. Make sure all the steering joints are good and the steering should feel fine

Some have managed to use power steering boxes from the 164
__________________
www.classicswede.co.uk
classicswede is offline   Reply With Quote
Old Oct 24th, 2020, 19:20   #33
sleek lemur
Senior Member
 

Last Online: Yesterday 17:58
Join Date: Jun 2019
Location: Thorndon, near Eye, Suffolk, England
Default

It's interesting. I bought my 1800E in 2019. Had owned an S back in the day and never noticed any steering issues, however I found the E steering really heavy. Maybe because in between all my cars (Merc 280se 3.5, Jensen, Merc 280SL) had power steering.

I now I have EZ power steering and it is superb. I wish I had fitted it myself, however, as I have had to fiddle with it quite a bit afterwards. Wish I'd done it myself.

That said, EZ will fit it for you. Anytime I have spoken to the UK rep, he's been extremely responsive.

Plus I now have a lovely wood rimmed Nardi steering wheel!

Recommended.
sleek lemur is offline   Reply With Quote
The Following User Says Thank You to sleek lemur For This Useful Post:
Old Oct 24th, 2020, 22:36   #34
142 Guy
Member
 
142 Guy's Avatar
 

Last Online: Today 00:25
Join Date: Jul 2020
Location: Saskatchewan
Default

I fitted a EPS column unit from a 2008 Nissan Versa on my 1971 142. At present, it is operating in the fail safe mode because I don't have a CAN bus speed signal. In the fail safe mode assist is fixed. With my 185/65 tires it is perhaps a nudge on the heavy side for parking; but, a huge improvement compared to the stock non assisted steering, particularly since I have a smallish Moto Lita steering wheel. Works out perfectly for around town urban driving. The assist makes the car sensitive to steering input on the highway. If you can't hold your arms steady then you are likely going to be wandering. If you retain the original Volvo hoola hoop sized steering wheel you definitely are not going to like the fixed assist while driving on the highway.

When I installed the EPS I completely ditched the lower portion of the 140 steering column with the rubber mounted break away section. In its place I used the splined collapsing column from the Versa. The splined collapsing column from the Versa eliminated all the torsional flex that existed in the rubber mounted break away section on the Volvo. That further increases the directness of the steering which some people may not like at highway speeds.

The 140 comes with 0 deg to a tiny amount of positive caster which means that there is very little self alignment in the steering system at speed. Volvo minimized the caster to reduce steering effort at low speed. I have been experimenting with increasing the positive caster to the 1+ degree range which has increased the self aligning in the steering geometry. Between that and my small steering wheel I have not been particularly motivated to experiment with generating a CAN bus speed signal to further reduce assist at high speeds.

I picked the Versa EPS column unit because the way the drive motor was mounted on the column worked better on a LHD 140. I expect that on a RHD 140 or 1800 there might be an interference problem with the drive motor. The Prius EPS might be a better fit on an RHD car.

I think my all-in cost was around $600 Cdn with me doing all the design, procurement and installation.

Last edited by 142 Guy; Oct 24th, 2020 at 22:38.
142 Guy is online now   Reply With Quote
The Following User Says Thank You to 142 Guy For This Useful Post:
Old Oct 25th, 2020, 00:11   #35
Burdekin
Chief Bodger
 
Burdekin's Avatar
 

Last Online: Yesterday 22:00
Join Date: Oct 2009
Location: Aberdeen
Default

I believe the EZ use a Corsa C electrical unit.
__________________
One day I will get rid of all of the rust.
Burdekin is offline   Reply With Quote
Old Oct 27th, 2020, 19:23   #36
bells
New Member
 

Last Online: Yesterday 20:37
Join Date: Oct 2020
Location: Caversham, Reading
Default

Yeah, the steering does feel fine. Just that I do a LOT of manoeuvring at essentially zero speed and its a bit of a pain. Ive heard people say that EPS can ruin the feel when driving which I dont want to do, also that it can put undue stress on the steering box as its not designed to be assisted, not sure how true that can be really.
bells is offline   Reply With Quote
Old Oct 27th, 2020, 19:28   #37
sleek lemur
Senior Member
 

Last Online: Yesterday 17:58
Join Date: Jun 2019
Location: Thorndon, near Eye, Suffolk, England
Default

I find feel is fine is fine at speed, as assistance reduces.

I heard about the steering box strain thing as well, but so long as you're not whizzing the steering from lock-to-lock at standstill, I don't see how it can do any harm.

This is the cue for someone who knows more than me to prove me wrong/missguided!

Why don't you give Mike Waters at EZ a call? V helpful and approachable. No hard sale- took me 8 months to decide!
sleek lemur is offline   Reply With Quote
Old Oct 29th, 2020, 12:49   #38
Burdekin
Chief Bodger
 
Burdekin's Avatar
 

Last Online: Yesterday 22:00
Join Date: Oct 2009
Location: Aberdeen
Default

Ho much is the EZ system installed?
__________________
One day I will get rid of all of the rust.
Burdekin is offline   Reply With Quote
Old Oct 29th, 2020, 14:21   #39
mocambique-amazone
Master Member
 

Last Online: Yesterday 18:47
Join Date: Nov 2008
Location: small village in the north of Germany
Default

If you swap to the EZ or similar system you will add stress to the steering box.
And this boxes aren't really strong.

To swap a 164 power steering box is possible and not done in 1 day!!
You have to weld a lot and modify the frame rail heavily. I did it several times. I got faster now and will still need a few days.
The 164 won't fit into the 140 too. The mounting holes are at a different place. The pitman arm is different too.
I have a 140 LHD and a 164 LHD power steering box in Stock and maybe I'm able to do pics.

The Amazon and P1800 are good to drive if adjusted very well. They are without caster, and you will need caster with power steering. I do modify the front axle heavily too. Gaining camber (-1.0 - 1.5) and caster ( 2.5 - 4, depends on condition the car will be used.

Wide tyres and rims are not helpfully at original cars if for your feelings the steering is too heavily.

Good luck, Kay
mocambique-amazone is offline   Reply With Quote
Old Oct 29th, 2020, 16:30   #40
142 Guy
Member
 
142 Guy's Avatar
 

Last Online: Today 00:25
Join Date: Jul 2020
Location: Saskatchewan
Default

Setting aside friction in the steering mechanism, stress on the steering box is caused by the friction at the tire contact patch, specifically the resistance to rotation around the vertical axis at the contact patch. When the car is not moving or moving slowly the faster you rotate the input shaft to the steering box the greater the torque applied to the input shaft with the potential for higher wear. A column mount EPS does not alter the source of the stress or the maximum stress on the box. If you have big arms and a hoola hoop sized steering wheel you can generate just as much input torque to the steering box as a wimp with a 14" steering wheel and column EPS.

If the EPS facilitates endlessly rotating the steering wheel back and forth quickly while you are sitting in the parking lot, perhaps it will contribute to wear in the steering box. If the EPS facilitates driving the car with a persistent tendonitis resulting from too many botched slice serves on the tennis court I don't think accelerated wear is going to be a material issue. As noted, if you are concerned about steering box wear avoidance of the 205/60R15 tires would be the hot ticket.

Recognizing the inevitable ageing of the original steering box, perhaps my next project is looking for a front steering rack for the 140 that addresses the box wear and friction problems and does not create new steering problems.

Last edited by 142 Guy; Oct 29th, 2020 at 16:32.
142 Guy is online now   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 00:46.


Powered by vBulletin
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.