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NO start (stumped) 850 1995

posted by  someone claiming to be toze on  Sun Oct 28 08:47 CST 2007 [RELATED]

1995 855T5

I had posted the coffee spill leading to srs light question.
Got around to working on the car and removed the center console all went well.
But now the car will not start At all. it cranks cranks but no signs..maybe an sputter Every now and then..
Things i've checked..

Spark...both entering the dist..and at every spark plug..all good
Fuel..both entering the full rail and it spurts out of the spark plug hole while cranking.
Crank>camshaft's position..looks good.
Compression..varies wildly..from 90's to 120's but this block is stone cold..

Im stumped..

The car ran fine just yesterday while i had the center console out and had cleaned the crash sensor..it was just this am while i was trying to read/wipe codes off of the A and B box that this started to happen..
Any help?







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    NO start (stumped) 850 1995

    posted by  someone claiming to be Jasaab on  Tue Oct 30 06:33 CST 2007 [RELATED]

    This is a common problem on 850's (mainly 1994. Tech bullentin on the subject states the following. This is a carbon build up problem. Crank it like klaus says stomp on th gas and crank for ever (up to 5 minutes)(he is always on target). Then run your car a 5000 rpm for an hour (put in low if automatic)and go for a long drive at 35 to 40 mph. Then change your oil.








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    NO start (stumped) 850 1995

    posted by  someone claiming to be fixit2003 on  Mon Oct 29 03:22 CST 2007 [RELATED]

    Try squirting some oil into the cylinders to get the compression back up. Crank it a few times before inatalling the plugs. Disconnect the battery for 5 minutes to reset things.








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      NO start (stumped) 850 1995

      posted by  someone claiming to be Toze on  Mon Oct 29 04:01 CST 2007 [RELATED]

      Thank you will do

      Where is tdc for cyl #1 on these engines? is it where the marks on both cams line up with the triangles plus the crank notch.. or is it the cam on the intake showing 0 degrees on the plastic cover?
      I am starting to suspect that the timing belt may have jumped a few teeth.
      which would account for the low compression.
      when i line up all the marks the #1 piston is NOT all the way up as verified with a screwdriver put in and if i keep moving the crank it still goes up if i move it past the notch...
      hoping for the best..
      for whatever its worth the timing belt looks great and is tight..








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        NO start (stumped) 850 1995

        posted by  KlausC on  Mon Oct 29 07:25 CST 2007
        Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
        last visit: Fri Oct 24 10:15 CST 2014
        [RELATED]

        "Lawn mower syndrome" --- your brief start didn't let oil pressure to build up and the lifters never got lifted properly.

        Make sure you have enough battery power, and crank the sucker for at least 60 seconds. The starter will build oil pressure and your compression will come back and the car will run normally.

        Klaus
        --
        The 164 has a new home, all I am left with are a 95 854T and a 98 V70R :)








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          NO start (stumped) 850 1995

          posted by  someone claiming to be toze on  Mon Oct 29 13:30 CST 2007 [RELATED]

          Well klaus it sound right. this "lawnmower theory" I just went out there and removed all the plugs so it would crank easier...cranked for 60sec for about 3 times then one 2min crank...
          hooked up the compression tester...and now i have anywhere from 30 psi to 90 psi compression across the 5 cyl...sometimes i see 130 psi..but on the next test..it comes back down..so im sold on the sticky lifter theory..but it seems like either i'll have to wait for warmer weather its in the its 43 right now..or??? because cranking is not getting them freed up..
          any other ideas to let them valves close?..short of removing cams and doing it by hand?








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            NO start (stumped) 850 1995

            posted by  KlausC on  Tue Oct 30 03:56 CST 2007
            Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
            last visit: Fri Oct 24 10:15 CST 2014
            [RELATED]

            ARRRRRGH!!! Put the clean plugs in the engine and connect everything back up. Your cams are not out of whack! The belt is toothed and cannot "slip".
            Just put the gas peddle all of the way to the floor (this tells the ECU to turn off gas while the starter is in operation) and crank the little sucker. When you hear a little sputter, let your foot off the gas and keep cranking.
            You may have to run the starter a long time, but it will start! Do not worry about compression testing! You didn't kill anything. Just make sure you have a strong battery charge.

            Klaus
            --
            The 164 has a new home, all I am left with are a 95 854T and a 98 V70R :)








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            NO start (stumped) 850 1995

            posted by  Champ 6 on  Tue Oct 30 01:39 CST 2007
            Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
            last visit: Sat Sep 18 10:02 CST 2010
            [RELATED]

            I feel your pain, having gone through this before. The problem is that the valves are closed, not open, and the lifters don't have enough oil in them to function. I really don't know how much this will help with the cold weather, but perhaps changing to a very light weight oil and cranking several minutes without the sparkplugs will finally get the oil up into the lifters so they will function.

            While you are doing this, disable the fuel injection by pulling the fuel pump fuse so you don't flood the engine. While the plugs are out, check and see if they are wet with fuel and dry them out if they are. Some brands, especially cheap old Champions, have porous porceline and won't ever spark if the porceline is soaked with gas. I use a propane torch to burn off any fuel on them.

            Hope you get it fired up soon!







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              NO start (stumped) 850 1995

              posted by  someone claiming to be Toze on  Wed Oct 31 05:16 CST 2007 [RELATED]

              Success.
              What an odd problem to have happen but im glad the o'l bugger is working again..
              but just about everything else is craping out now..
              srs light on
              check engine light on
              bad light somewhere on
              hvac controls flashing..

              Oh joy..
              this is all new besides the srs light that came on with the coffee. OH well..time to count to 7 sec a whole bunch of times.. or obdII code clearer my car does have obdII as per the labeling above the connector..
              Again a huge thank you...to all.
              Love this place..
              Ps i was also the guy that drove that 1979 volvo to argentina..and relyed on this board a few times to keep going..






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