cant turn motor over by hand! (found out why)

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  • MTechnikII
    Member
    • Jun 2007
    • 83

    #16
    take the valve cobver off and check and see if anything is cought in the mechanisem to prevent it from turning.
    Henry

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    • whodwho
      E30 Mastermind
      • Jun 2008
      • 1547

      #17
      Originally posted by riceh8r
      just because crank timing mark is lined up does not mean #1 is at tdc.
      Unless the front pulley/dampner was installed incorrectly then it does
      My M20 Frankenbuild(s)
      4 Sale - Fully Built TurnKey Megasquirt Plug and Play EMS

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      • Killacortes
        E30 Mastermind
        • May 2010
        • 1937

        #18
        Originally posted by billybobjoseph
        You know if the marks are lined up and you have the belt on you should be able to turn it. What was the original problem that brought you to get a new head? I think I would take off the belt and make sure the intermediate shaft turns. If it does put the belt back on and make sure you didn't have it a tooth off or something. Take the crank around two complete revolutions and make sure when it's back to TDC the timing mark on the cam is aligned with the mark on the head again. If you still can't turn it take the head off and check the cam shaft turns and the crank turns.
        how do i turn the intermediate shaft? im guessing that is on right of the timing cover?

        Originally posted by riceh8r
        just because crank timing mark is lined up does not mean #1 is at tdc.
        i dont see why it wouldnt be at tdc when the head was off piston 1 was at the very top and the marks were lined up

        Originally posted by whodwho
        Unless the front pulley/dampner was installed incorrectly then it does
        its pretty hard to incorrectly install the dampner cause it has a hole for a pin that can only go in one way
        Originally posted by blunttech
        r3v does not fuck around. First you get banned, then they shoot you

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        • gkobez
          Advanced Member
          • Jan 2011
          • 184

          #19
          How long was the head off for? was the car outside with the head off ? I have experienced instances where if you have the head off for a prolonged period of time, slight amounts of rust may form to the pistons, restricting the movement. This would only be a place to start thinking about IF your timing is right and you see no other reason for movement restriction.
          sigpic

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          • M-technik-3
            I waste 90% of my day here and all I got was this stupid title
            • Oct 2003
            • 18946

            #20
            Pull the valve cover soak the head with some oil, close it let it sit for a bit and come back to it with a fresh start. The head did you add any sort of lubricant after the machine work?

            While it's open take a look at the cam lobes you will know if you are close to TDC.
            https://www.facebook.com/BentOverRacing

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            • billybobjoseph
              Wrencher
              • Mar 2011
              • 213

              #21
              Once you have the belt off you should be able to turn the intermediate shaft with your hand. Yes its the one directly above the crank. It turns the shaft that drives your oil pump.

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              • riceh8r
                Advanced Member
                • Dec 2010
                • 133

                #22
                i had an eccentric that was rolled too far, it made it very hard for the rocker arm on the high point of lobe. might try backing them all off, you need to reset them anyways. good luck.

                Comment

                • Killacortes
                  E30 Mastermind
                  • May 2010
                  • 1937

                  #23
                  Originally posted by gkobez
                  How long was the head off for? was the car outside with the head off ? I have experienced instances where if you have the head off for a prolonged period of time, slight amounts of rust may form to the pistons, restricting the movement. This would only be a place to start thinking about IF your timing is right and you see no other reason for movement restriction.
                  the head was off for quite a while from what PO said. there was no rust on top of the pistons or on the cylinders.

                  Originally posted by M-technik-3
                  Pull the valve cover soak the head with some oil, close it let it sit for a bit and come back to it with a fresh start. The head did you add any sort of lubricant after the machine work?

                  While it's open take a look at the cam lobes you will know if you are close to TDC.
                  the machine shops said they lubricated the cams.

                  Originally posted by billybobjoseph
                  Once you have the belt off you should be able to turn the intermediate shaft with your hand. Yes its the one directly above the crank. It turns the shaft that drives your oil pump.
                  thanks ill try turning it tonight.

                  Originally posted by riceh8r
                  i had an eccentric that was rolled too far, it made it very hard for the rocker arm on the high point of lobe. might try backing them all off, you need to reset them anyways. good luck.
                  ill try it, the guy who did the head said he adjusted all the valves
                  Originally posted by blunttech
                  r3v does not fuck around. First you get banned, then they shoot you

                  Comment

                  • Killacortes
                    E30 Mastermind
                    • May 2010
                    • 1937

                    #24
                    feelin pretty dumb right about now. so when i bout the head it came out of a 90 325is and when i talked to the seller of the head he said that his car never burnt any oil or anything but was just really slow. I still couldnt figure out why the head wouldnt turn but when i took it apart again i found out it was a 731 head! lol now i need to find a 885 head. and keepin this one for a 2.7i
                    Originally posted by blunttech
                    r3v does not fuck around. First you get banned, then they shoot you

                    Comment

                    • Gruelius
                      Wrencher
                      • Oct 2009
                      • 298

                      #25
                      LOL

                      least u found it out.. and didnt try cranking it with the starter
                      RIP 84 323i coupe 5spd w/ 14psi
                      89' 318i

                      Comment

                      • nando
                        Moderator
                        • Nov 2003
                        • 34827

                        #26
                        wow, that's crazy. at least you got a good 731 head?
                        Build thread

                        Bimmerlabs

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                        • billybobjoseph
                          Wrencher
                          • Mar 2011
                          • 213

                          #27
                          Nice you got it figured out :)

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                          • Kershaw
                            R3V OG
                            • Feb 2010
                            • 11822

                            #28
                            m20b27 swap. lol.

                            at least you didnt crank it and damage something.
                            AWD > RWD

                            Comment

                            • M-technik-3
                              I waste 90% of my day here and all I got was this stupid title
                              • Oct 2003
                              • 18946

                              #29
                              How did you not notice it was a 885 head? I mean when you bought that would have been the first thing I looked at was the stamps on the head.
                              https://www.facebook.com/BentOverRacing

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                              • e304me
                                E30 Fanatic
                                • Feb 2006
                                • 1374

                                #30
                                I was hoping the reason was going to be that you had it in gear

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