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Fuel pressure 200

'84 Wgn, 400k+ First thanks for all the info re: knock sensor. Now does anyone have any advice on how to check the fuel pressure without using the Rube Goldberg that Volvo says I need?








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    Fuel pressure 200

    " ... anyone have any advice on how to check the fuel pressure without using the Rube Goldberg that Volvo says I need? "

    Here you are asking essentially the same question that brought me to this forum 23 years ago. Working on an 84, too.

    The advice I was given was to find a fuel rail at the junkyard and salvage it for the fittings. This, after spending all too much time sorting through the adapter fittings in drawers kept at local auto part stores looking for the metric flare size Bosch used. Good advice, for the time, when one could expect to find these cars in the yards!



    However, my objection to the Volvo recommendation was not that it was complicated, but that it was expensive. Very expensive for what it was.



    The junkyard fuel rail cost me $5. The refrigeration Schrader I already had.




    Now one can find the adapter fittings for a reasonable outlay. I wish I had bookmarked where so I could make it easier for you.

    I'm still using this adapter, even on the newest (92+ is new to me) rails with the fitting so conveniently (sarcasm) pointed South which can't be connected to without a 90-degree L, or if you like, holding a stick-type tire gauge on it.



    Don't try to swap rails from a '93 to an '84 for this reason. Your '84 uses Bosch Jetronic LH2.0 (the 1.0 was used only in California in '82).


    --
    Art Benstein near Baltimore

    The quickest way to double your money is to fold it in half and put it back in your pocket.








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      Fuel pressure 200

      Check this out:

      https://mrotools.com/71305-lang-volvo-adapter-14mm-lh-jetronic.aspx
      --
      Art Benstein near Baltimore

      It's always darkest before dawn. So if you're going to steal your neighbor's newspaper, that's the time to do it.








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    Fuel pressure 200

    Until now I had never heard of Rube Goldberg, so Wikipedia to the rescue:

    "Goldberg is best known for his popular cartoons depicting complicated gadgets performing simple tasks in indirect, convoluted ways."

    I guess, then, that the '84 doesn't have the Schrader valve on the fuel rail?








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      Fuel pressure 200

      Hi Grey,

      Looks like a learning day on the Brickboard!
      My wife and I didn't know that either, thanks!
      If you watch the introduction part to the latest series of "Sherlock Holmes."
      You see an example of that in a rolling ball on a track!

      Yep cartoons were the rage from 1800's to the 1960's.
      Lots of people couldn't read and write.
      That came along with lots of hard working Europeans and Craftsmenship that built America.
      Oh, how we forget the dependence on each other, on this planet, while seeking independence!

      My Grandfather, on my mothers side, couldn't read but I remember him holding the newspapers open to the comic section, a lot!
      The Sad Sack comic strip of the Army used no words I think?
      He studied that way and he bought products by brand labels.
      So there you go, why Americans are soooo ... brand crazy today! Marketing and packaging!

      When I first saw that rail fitting my thoughts gravitated on .... "What a "Goldbricking" piece of engineering that is!"
      Sad Sack was sort of a goldbricking person in the Army.

      If you think about it, there is that Special Tools Department in Volvo, that has its own section in manuals! Probably not bad for a couple of engineers involvement.
      The only explanation is they like to get overtime "thinking pay" and that is collected from all the dealership service bays worldwide!
      The term "self funding" comes mind!

      When I developed an issue with my 1986 wagon, I silver soldered a Shrader 1/4" refrigeration fitting into the pipe. It's pointing upwards though, as my A/C gauge set hose likes to go straight onto fittings!
      Once you realize what a fuel pressure flow or rest pressure problem can do you learn the symptoms of a bad FPR or the fuel pumps.
      I have a 1984 also, but haven't put one on it.
      It's the brick part of me, that is definitely not golden, but a heavy gray material ):-)
      The '84 has gone through two Fuel Pressure Regulators over the years I have had it, maybe more!
      The 1984 is the LH 1.0 and since is prone to failures, on my score sheet!

      I believe changes were made towards longevity later on along with the fittings being different, because they JUST can!
      Neither style has leaked, but there they go, specializing again!
      No interest in newer than my three 90's with single CEL computers.

      $$$ Scan tool vendors and alike included. $$$
      I'm watching the electric car progression with interest and so far the lots of stupidly runs deep with ways to connect power, let alone the auto driving conundrums.

      Their going to be overly expensive, than what it truly takes to make these "fewer parts" machines.
      Today's vehicles are outlandishly overpriced and they are not going to give up on that market!
      It All still stinks and America's big three are like chickens looking for feed, Rather chaotic! IMHO

      As the Shadows of past have shown, with one or two year production runs and the proprietary Golden $$$ Boys still gaming us, as in, like the old world of hundreds of different wall warts!

      Boy, that simple subject ran out deep this morning! (:)

      Have I liked the stability of Volvo, of past or what?


      Phil








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