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v8 - auto gearbox - refit

Discussion in 'It's A V8 Mate!!' started by kitkat237, Jun 6, 2012.

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  1. kitkat237

    kitkat237 Member

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    hello all back again with another interesting problem. i have rebuilt my 4.6 v8 from my rang rover p38 refitted it and i had a problem with the oil pump not priming i finally got it running after replacing the front timing cover and oil pump for a replacement. as soon as she fired up i notest a lot of oil poring out of the bell hosing at the back of the engine and front of the Auto gear box i removed the cover to the torque converter and it was fall of gearbox oil


    Is there anything special you should do when refitting the engine to and auto gearbox ?



    should you fit the torque converter first then bolt the engine to that or can u bolt to torque converter to the engine and fit it as one unit ?



    should the gear box be in park or neutral when you start it after a refit ?


    also how much oil should i put in the gearbox before the engine is run ? as you should cheek the level when its running in neutral



    thanks for your on-going help
     
  2. dove

    dove Active Member

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    The torque convertor should be unbolted from the engine before removal and left inside the bell housing ,when refitting you bolt the engine to the bell housing then line up and bolt torque convertor to flex plate,the torque convertor should not have been taken out with the engine and definitely never bolted back to the box when connected to the engine,the torque convertor has to line up with the oil pump inside the bell housing,you may have damaged the seal if you have taken it out and replaced it the wrong way,even worse damaged the gearbox oil pump,the box or engine will have to come back out to see what's wrong.you sure it's ATF?and not engine oil from rear crank seal
     
  3. kitkat237

    kitkat237 Member

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    yea im almost shore its gearbox oil and the torque convertor was taken out with the engine. ok will remove the engine and how do i line the torque convertor up is it just a case of lining the shafts up i have also ordered a new oil seal so will replace that at the same time
     
  4. kitkat237

    kitkat237 Member

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    is there anyway to see if i have done any damage to the gear box oil pump when i take the engine out to re fit the Torque converter ?
     
  5. jamesmartin

    jamesmartin Well-Known Member

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    when its apart look down between seal and shafts you should see 2 tabs that fit into the 2 cut outs in t/c thats drive for box oil pump(they get broken if fitted badly),it easier to use 2 long 10mm bolts screwed into threaded lugs on t/c to refit t/c ,after fitting measure dsepth of one lug to the front face of box bellhousing ,then measure how far drive plate rear most facew is from engine rear box mounting face ,t/c needs to sit in 1-2mm more than drive plate sticks out .ensure t/c doesnt slip out of mesh when refitting
     
  6. kitkat237

    kitkat237 Member

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    thanks for that if the lugs are broken what am i looking at a replacement gear box or can it be fixed ? also when im fitting the tc is it a case of lining the lugs up then rotating it till it sits back on the measure then take the measurements as u said ?
     
  7. fett

    fett Well-Known Member

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    hope you didnt crack the pump
     
  8. jamesmartin

    jamesmartin Well-Known Member

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    you can remove bellhousing and then pump housing ,undo screws holding pump together but leave a couple with a few threads still in so you can tap then to release pump ,replace broken parts
     
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