How freely should my motor spin?


3 replies to this topic
  • G-BRO

Posted December 20, 2013 - 07:17 PM

#1

Just rebuilt the top end of my 01 426. How freely should the engine rotate when I turn it over over manually with a socket? There is some resistance during a portion of it, but I'm sure that is a good thing (compression stroke I'm guessing?) It doesnt feel like anything is binding but there is some resistance and I'm not sure what is acceptable. Thanks

  • crazyman2

Posted December 20, 2013 - 07:30 PM

#2

Just rebuilt the top end of my 01 426. How freely should the engine rotate when I turn it over over manually with a socket? There is some resistance during a portion of it, but I'm sure that is a good thing (compression stroke I'm guessing?) It doesnt feel like anything is binding but there is some resistance and I'm not sure what is acceptable. Thanks


It should spin easy then hit a tight spot which is compression and the loosen and repeat

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  • G-BRO

Posted December 21, 2013 - 09:53 AM

#3

Ok that sounds about right. Seems like it is tighter during the compression stroke than it was before the rebuild. Guess that would be a good thing

  • crazyman2

Posted December 21, 2013 - 01:10 PM

#4

Ok that sounds about right. Seems like it is tighter during the compression stroke than it was before the rebuild. Guess that would be a good thing


That's a VERY goo thing means that the compression is back up in pressure :)





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