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93 dakota 3.9 auto backfire, bucks and misses when cold.

Old Nov 13, 2020 | 03:50 PM
  #21  
Gary Greathouse Jr Jake's Avatar
Gary Greathouse Jr Jake
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Started by pulling plugs, antifreeze ran out cyl3. Pulled intake, gaskets were stock but not leaking, plenum gasket leaking slightly. Pulled passengers head, definite gasket blown. Haven't fully cleaned the head yet but don't see any cracks or evidence if them. All bolts broke free with the exception of 1 driver's side exhaust flange bolt, that side of the flange twisted off instead of the bolt lol. Easy fix just gonna need a split flange.
 
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Old Nov 14, 2020 | 09:15 AM
  #22  
Gary Greathouse Jr Jake's Avatar
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Looking for head, rockerarm and intake torque specs. Anyone have the correct sheet. I find several online but all show something different
 
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Old Nov 14, 2020 | 10:56 AM
  #23  
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EDIT: Scrolled up, got my answer.

Here's the spec sheets out of the 1993 FSM; I'd again recommend you obtain one. Worst case is about $40 from Bishko directly; used on eBay for paper or new from Summit Racing if you just don't want to order directly from Bishko.

RwP
 
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1993_5.2_Specs_With_Torques.pdf (359.0 KB, 103 views)

Last edited by RalphP; Nov 14, 2020 at 11:00 AM.
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Old Nov 14, 2020 | 11:05 AM
  #24  
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And here's the head tightening sequence ...

RwP
 
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1993_5.2_Head_Bolts.pdf (245.7 KB, 77 views)
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Old Nov 15, 2020 | 11:03 AM
  #25  
Gary Greathouse Jr Jake's Avatar
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Thanks, but mine is a 3.9 v6. Will have to go to storage and pick up my books. Pretty sure I have a Chilton for the correct years just gotta remember which box lol. Gasket set was supposed to be in yesterday at 2, still hasn't came in.
 
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Old Nov 15, 2020 | 11:11 AM
  #26  
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The Chilton's won't be quite right.

I've added the 3.9 specs.

RwP
 
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1993_3.9_Specs.pdf (353.2 KB, 109 views)
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1993_3.9_Head_Bolts.PDF (233.6 KB, 76 views)
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