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  Tech Articles (Additions and Changes, ongoing!  Last Updates:  Apr 2016, an Article Listing by System can be found below!)
544 Wiper Info
Clutch - Cable Actuated, Notes 
Blinker Relay (or Element) Notes.  While Troubleshooting Directional Signals, one might need to know details about the Blinker Element.    
Houdini Threadlocker? or There is no Loktite thief in the South African Postal System!
123Ignition in a Volvo with Armored Cable  Details of installing electronic ignition modules are considered to help installers get it right! 
Torque...what it is, notes on applying and measuring it, including advice from Arnie!
Battery Notes  ...got Battery issues?...like your Battery going dead overnight or related questions?  Read about the demon Phantom Current, including in battery powered handheld devices. 
Notes on Making In-Line Connections...  Do Not Use "Current-Thieves"! 
(This is a newly added subsection of Emergency Flasher Retrofit for 122/1800 ).
Alt Kit Pivot bolt with a "Drunken Thread"! You learn something new every day!
Bosch Generator based Charging System in Detail.  Everything you always needed to know, and them some!  
Bosch D-Jetronic Fuel Injection Notes Compilation.  Including Throttle Position Switch (TPS) information and repair options.  
Run-In Torque (this is a subsection of Anti-Seize Notes). 
Realworld Experiences with Electrical Corrosion and ACZP. 
Voltage Drop in Headlights Power in Hex Connector  Applicable to 122 and late 1800 models.  Includes subsection:  The Lowly .250" Push-On Terminal
Temperature Gauge Notes The Temperature Indicator System of pre 140 vehicles is a filled thermal system not needing power to function, but careful handling to keep functioning!
Fuel Gauge Information and Notes  Applicable to 444, 544, 122, (6/12V) but not 1800 models.
Smith's Tachometer Information and Notes  As used in all 1800 Sport models
Anti-Corrosive-Zinc-Paste for Electrical Connections and the additional:  Simple Corrosion/Oxidation vs. Galvanic Corrosion and Comparison of Anti-Corrosive-Zinc-Pastes.htm
Ignition Switch Key Breakage Weak keys vs. the Gorilla Spring, vs. Cumulative Cyclic Fatigue
1800 Light Switch, Wiper Switch, Fan Switch Drawing Corrections 
Voltage Drops Cause Inadvertent Circuit Interactions 
SU HS6 Jet Supply Line Seal
123GT Consideration of Lighting Differences  ...significant differences in lighting control wiring between US and Euroversions are detailed.
Fuses, Allocation and Troubleshooting ...including 25A shorty fuse options, and fusing improvements and explanations pertaining to 35A (British) rated fuses specified for early P1800s. 
Deoxit D5 Additional  Keeping your low voltage/low current connections reliable...
Brake Drum Notes  No, drum is not welded to axle, it only seems that way...remove it safely without damaging hardware or liveware (you)!
Heater Control Valve 122
Variable Instrument Lighting function and options for repairs of its common intermittency are covered.
Ignition Additional...Ignition System Troubleshooting, Wifes Startautomat (Huh?), Ballast Resistor.
Not yet uploaded but I'm working on it!  Cooling System...a compilation of info, from theory of operation to installing that Electric Cooling Fan you've been considering. 
Swedish vs. British Design...there are some interesting differences between Amazon and 1800 Ignition wiring...and I've uncovered a reliability weakness in the 1800 design.
122 Horn Notes...revision of an older article, covering electrical improvements and refurb of the Amazon horn-switch.
Voltage Stabilizer Study   
Amazon Tail-light Fixture Restoration  once the brake light switch works well, it's good to know your tail-lights are putting out all the light they can!
Windshield Wiper Systems...more variations than Carter has Pills, and errors in the factory manual don't make things any easier!  Refurb and repair of motors, mechanisms and circuits is covered here. 
Hydraulic Clutch Tech Article...!
Electrical Upgrades / Buzzers and Beepers  covers adding a Relay for powering additional loads without additionally burdening the OE Ignition Switch...also adding a Headlight-On Reminder Beeper in your Swedish Oldie!
Hydraulic Brake Light Switch Failure Investigation  ...here's proof why they just don't last...
AMP Indicator ON.  This should clear up a lot when that little Red light starts staring at you!  Including Original Equipment Charging System Checks, Troubleshooting and Repair!
Analysis of the clutch slave cylinder action.  Even newerer! 
SU Carburetters  Maybe you've read it all before...maybe not!   Also:  SU Carb Service - Lite ...an introduction, and Carb Service - Expanded Version, with Adjustments.
Lighting, including Upgrades   Includes brake-light issues. 
Volvo Ignition from Scratch Lighting the fire ...at the right time!  Static Timing a B18/20,  plus: Bosch distributor servicing including Centrifugal Advance.  Recently added:  Vintage Volvo Ignition system and the Armored Cable.
The Gas Tight Joint  Part II, Lucas works inexcusable (dark) magic on the 1800.  After you read this maybe you'll understand about those unexplained electrical problems in your 1800... 
(Full) Headlight control upgrade.  (For 122s and 1800s.) 
Reviving a 'Decommissioned' Volvo 
If Cars could talk or History of the "Jupiter V Rocket No.3" 
A Tune-up out of Guilt or One Set of Points Outlasts the Clintons
Check Your Choke . . . just in time for (maybe next) winter!
Electrical Ramblings  Covers Amp meter hook-up per "H" diagram, including an objective discussion of automotive Ampmeters vs. Voltmeters to help one decide which to install.  Updated 7/2015
Of Unleaded Fuel and Burned Valves 
A Funny Thing Happened on My Way to my 200K Mile Badge Oops.
The Gas Tight Joint  Deals with electrical system corrosion and prevention.
122S Horn Upgrade  Improve anemic horns! 
122S Headlight Flasher Restoration    
Emergency Flasher Retrofit for 122/1800  Recently revised with new info added.
Vintage Volvo 6V to 12V conversion
   
Positive Crankcase Ventilation (PCV) Diagrams and Notes.  PCV systems on vintage Volvos went through a number of changes and configurations.  
   
Future Articles, that I'm working on...coming soon (with no particular ETA):
Headrest Upgrading Notes
The Starter System  
Electrical Troubleshooting Notes  Locating problems with Directional Indicators and Fuel Gauge.
OD Retrofitting on a vintage Volvo  Article notes.
Amazoning With Silicon Brake Fluid  Notes only, article to come!
John Z. DeLorean had it Right  Also (still) in progress.
An Automotive Electrical Primer Tech Article ...and remember:  Please don't call it juice! 
including:  Ohms Law, getting the most out of your $29 Multimeter, and
some common problems explained.
   
OD Retrofitting on a vintage Volvo  Notes!
Reprints of Old Articles,
Its a Small World or How I Came to Own a Sport Volvo 
That Nagging Clunk  Single bolt anti-sway bar mount vs. double.

All articles by R. Kwas, Copyright 1997-2015

 

Tech Articles Listing by System

As the above list has grown with articles simply being added as they were finished, it also results in a decreasing overview...so Tech Articles are now also arranged here by System, and if they fit under multiple categories, they may be listed multiple times.  

2A - Engine

    Positive Crankcase Ventilation (PCV) Diagrams and Notes
    A Funny Thing Happened on My Way to my 200K Mile Badge
    Of Unleaded Fuel and Burned Valves
   
2B - Cooling System
    Not yet uploaded but I'm working on it!  Cooling System...a compilation of info, from theory of operation to installing that Electric Cooling Fan you've been considering.
    Heater Control Valve 122
    Temperature Gauge Notes.

2C - Fuel & Exhaust Systems
    SU Carburetters  SU Carb Service - Lite   Carb Service - Expanded
    Check Your Choke
    SU HS6 Jet Supply Line Seal
    Bosch D-Jetronic Fuel Injection Notes Compilation.
   
Fuel Gauge Information and Notes

2D - Control linkages
    Throttle
   
    Choke:
    Check Your Choke
   
    Other: 
    Heater Control Valve 122

3 - Electrical equipment.  
    Charging System: 
    Battery Notes
    AMP Indicator ON.
    Bosch Generator based Charging System in Detail.

    Starter: 
    The Starter System  

    Ignition System:
    123Ignition in a Volvo with Armored Cable
    Ignition Switch Key Breakage
    Volvo Ignition from Scratch

    Ignition Additional
    Vintage Volvo Ignition system and the Armored Cable
    A Tune-up out of Guilt or One Set of Points Outlasts the Clintons
    Swedish vs. British Design

    Lighting: 
    Blinker Relay (or Element) Notes
    Voltage Drop in Headlights Power in Hex Connector 
    Variable Instrument Lighting
    Lighting, including Upgrades
    (Full) Headlight control upgrade.
    122S Headlight Flasher Restoration
    Emergency Flasher Retrofit for 122/1800
    123GT Consideration of Lighting Differences
    1800 Light Switch, Wiper Switch, Fan Switch Drawing Corrections
    Amazon Tail-light Fixture Restoration
    Electrical Troubleshooting Notes

    Wiring:
    Fuses, Allocation and Troubleshooting
    Electrical Ramblings  
    Voltage Drop in Headlights Power in Hex Connector 
    Notes on Making In-Line Connections
    Swedish vs. British Design
    122 Horn Notes

    Bosch D-Jetronic Fuel Injection: 
    Bosch D-Jetronic Fuel Injection Notes Compilation.

    Misc. Electrical, Instrumentation, Windshield Wipers: 
    544 Wiper Info
    Temperature Gauge Notes
    Battery Notes
    Fuel Gauge Information and Notes
    Smith's Tachometer Information and Notes
    Windshield Wiper Systems
    122 Horn Notes
    122S Horn Upgrade
    Voltage Stabilizer Study
    Hydraulic Brake Light Switch Failure Investigation

    General: 
    The Gas Tight Joint
    Voltage Drops Cause Inadvertent Circuit Interactions  
    An Automotive Electrical Primer Tech Article ...and remember:  Please don't call it juice! 
    Vintage Volvo 6V to 12V conversion
    Deoxit D5 Additional
    Electrical Upgrades / Buzzers and Beepers

    Alt Kit Pivot bolt with a "Drunken Thread"!

4 - Power train, Rear axle
    Clutch - Cable Actuated, Notes
    Hydraulic Clutch Tech Article
    Analysis of the clutch slave cylinder action.

    Transmission:

    Overdrive: 
    OD Retrofitting on a vintage Volvo

5 - Brakes etc.
    Brake Drum Notes
    Hydraulic Brake Light Switch Failure Investigation
    Brake Fluid:  Amazoning With Silicon Brake Fluid 

6 - Front axle, Wheels, Steering
    Anti-Swaybar Mount: 
    That Nagging Clunk  Single bolt anti-sway bar mount vs. double.
   

8A - Body P120,P130 (2D + 4D)
  
 Interior: 
    Headrest Upgrading Notes

    Sheet Metal Frame Repairs: 
    John Z. DeLorean had it Right

    Clutc8B - Body etc. P220 (Estate)
    Clutc

9 - Miscellaneous equipment
   

10 - Bosch equipment
    Bosch D-Jetronic Fuel Injection Notes Compilation.

General
  
Houdini Threadlocker
    Torque
  
Anti-Corrosive-Zinc-Paste for Electrical Connections
    Simple Corrosion/Oxidation vs. Galvanic Corrosion and Comparison of Anti-Corrosive-Zinc-Pastes.htm
    Run-In Torque (this is a subsection of Anti-Seize Notes).
    Realworld Experiences with Electrical Corrosion and ACZP
    Reviving a 'Decommissioned' Volvo

Volvo Stories 
    If Cars could talk or History of the "Jupiter V Rocket No.3"
    Its a Small World or How I Came to Own a Sport Volvo
    Mind-Numb Robots

End of Listing by Tech Articles by System