Volvo RWD 140-160 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 6/2020 140-160 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

Replaced plugs... 140-160 1968

i just put Bosch Platinum plugs in my car along with a new Bosch Blue coil from IPD and new "hiperf" 7.5mm wires from Baxter Autoparts. Upon removal of the old plugs, I found that the third one (starting with the front of the car as #1) was all black/sooty, the other ones all were their fine, tan color... What does this mean? Is a valve not seating correctly, or is my crappy Weber setup just leaking extra fuel into this third cylinder???
Thanks,
Kyle








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    Replaced plugs... 140-160 1968

    It's a Weber downdraft? That's not likely the problem... Run it a day or two and recheck the plugs -- maybe you had a marginal plug wire (also, how's the inside of the cap and rotor?). If not, check the valves.








    •   REPLY TO THIS MESSAGE    PRINT   SAVE 

      Replaced plugs... 140-160 1974

      I had Bosch platinums in my 164 and was advised by very good Volvo mechanic to go back to more of a stock plug. Platinums caused nothing but trouble. Has anyone else heard this?








      •   REPLY TO THIS MESSAGE    PRINT   SAVE 

        Replaced plugs... 140-160 1974


        Platinum or other spiffy plugs are only useful if you plan on using
        the same plugs in the motor for 60,000 or more miles. They don't throw
        a better spark or make the gas burn better or prevent carbon buildup
        better than a normal plug of the same heat range -- they just last
        longer without wearing out.

        Of course, in a carbureted motor without lots of sensors to cause the
        exactly correct amount of fuel to be delivered for the current situation,
        the plugs will certainly get fouled or melted from running lean or get
        oil deposits long before they would wear out.

        This is why I use $0.90 bosch copper plugs in my cars and sand them
        with a nail file from time to time (which would destroy a platinum
        plug, or at least ruin the platinumness). I'd use junkyard plugs if
        they looked okay...

        That said, they should work just as well as the other plugs that were
        in there.
        chris








      •   REPLY TO THIS MESSAGE    PRINT   SAVE 

        Replaced plugs... 140-160 1974

        Yes, yes, yes.








        •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

          Replaced plugs... 140-160 1974

          I'm with "cdu" and Jim.Go with the Bosch "Supers".I have had numerous problems with the platinums in Volvo's and everything else! Interestingly enough when I went through Bosch's "baps" program.There was no one in our class of 14 (with over 175 years collectively repairing cars with Bosch systems) That had a good thing to say about platinums! On the 4th day there was an hour dedicated to 2 Bosch reps who were going to tell us why Platinum+4 plugs (new at the time) were going improve our lives! We all took the free hats,pens,stickers and calenders and vowed never to touch use the plugs!








          •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

            Replaced plugs... 140-160 1974

            Might I add,It's nice of IPD to peddle those to you.I thought they knew old volvos and what made them tick.If thay have had success running them in volvos they'd be the only volvo techs I've heard of in 15 years who have.......What did they charge you for these??








            •   REPLY TO THIS MESSAGE    PRINT   SAVE 

              Replaced plugs... 140-160 1974

              Hiya Volvobub,
              Last time Kyle was in, I was not the rep that helped him. I don't believe ipd carries a Platinum plug for a pushrod engine. We only very recently began carrying one for the five cylinder. If Kyle had asked any of us up in front if we'd run a Platinum in his 142, I bet we'd all make a resounding NOT! sound.
              I personally try to steer folks with over 10,000 miles away from them, I think they clog easy. Again, just my personal opinion.
              I just dang ol' like the NGK BP6HS.
              Best,
              Shayne.
              P.S. I got those blueprints for you, but I'd like to confirm your address. Gimme a weekday call at 800-444-6473.








              •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

                Replaced plugs... 140-160 1974

                Shayne
                Thats what I like to hear.I thought you guys had lost your marbles! I do so want the blueprints! How did the dome delay install go? I can supply more info if you need it and I will definately call you this next week.I heard some ipd folks would be at Davis.Any chance you or Cameron will make it? I wouldn't mind seeing him again and would like to meet you in person also.
                Thanks for snuffing the fire early,Richard would be proud!

                Bub








        •   REPLY TO THIS MESSAGE    PRINT   SAVE 

          Replaced plugs... 140-160 1974

          Plastic oil, platnum plugs for lonely caming shaft motors. best ever motor design b18 20 like reptile oil olio and copper sparking.
          Prety lady bring p1800 to Volvo Fixers runing like sick poochie we take out platnum to be in putting old copper plug then 1800 pounding chest like like mighty virile viking.
          Blut
          Blut & Svet Volvo Fixers
          "Bring Volvo now! front door full?, drive into side of building"







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.