3.9 v8 low oil pressure . gurus help needed

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
Ok quick update . Ive just took the sump off and yet again got covered in oil lol. Ive took of the oil pick up pipe and the bolts was loose . Before I start undoing the mains to check .would the pickup being loose cause any problems . And if not I could do with a bit of advice on which main I should undoo and look at and in what order etc .thanks. ps im doing this with engine in car and only sump of
 
Last edited:
loose bolts on pick up is a issue ,you can change bearings without removing crank if all bearings are slackened,but is there any damage on journals ,any pics
 
The part that holds the bearing is fine and the crank looks fine as well . Its only the shell thats copper looking . Sorry not sure what you mean by journals .this is the first time ive ever gone to this part of an engine .
 
lightning series3 said:
The part that holds the bearing is fine and the crank looks fine as well . Its only the shell thats copper looking . Sorry not sure what you mean by journals .this is the first time ive ever gone to this part of an engine .
Click to expand...

journal is the machined part of crank bearing runs over,if bearings copper its worn out and chances are the other 4 are too,crank bearings have wear on the lowest shell and big ends the top shell when you come to look at them
 
undo main cap..remove inner lower bearings with main caps..note which is which..losen but do not remove outers yet..you dont want to put any strain on crank and rear/front seal..
you can then get main upper bearings out by pushing them around.NOTE they have a little lug that holds them in place and stops them spinning when all done up..MAKE sure you push bearing so lug comes out first, wont budge otherwise..
NOTE which bearing comes from which joural..
bolt inner main caps back up..not tight! just to hold crank in place.
remove outer caps and do same..

then read what each bearing says on back..part no /size etc..and go buy..use quality parts.

fitting new bearings is basically the reverse...BUT use loads of clean oil on bearings and FOLLOW torque up procedure for your engine..
YOU WILL need a torque wrench.

once mains done move on to conrod bearings..
you can remove at same time, but i would not..this way the pistons and rods will help stop the crank moving and damaging rear seal..

good luck..plenty on you tube about this..
 
I think ive managed to do it
 

Attachments

  • 20140427_143227.jpg
    20140427_143227.jpg
    167.9 KB · Views: 209
  • 20140427_143222.jpg
    20140427_143222.jpg
    292.4 KB · Views: 153
  • 20140427_142946.jpg
    20140427_142946.jpg
    212.6 KB · Views: 156
thanks zen that's exactly the advice I needed , im going to ring john earles on Monday and buy the genuine one , di really need to do the conrod ones its really hard working upside down lol,
 
oh no ,looks like a busy few weeks ahead , ill do as zen says and do mains first. thanks for advice on how to upload lol. the main center one I took out has these symbols on it
 

Attachments

  • 20140427_163907.jpg
    20140427_163907.jpg
    151.9 KB · Views: 168
  • 20140427_163758.jpg
    20140427_163758.jpg
    137.5 KB · Views: 176
help again im just doing the mains and the kit I purchased . two of the bearing have flanges on the sides , one went into the center top but the engine has not got another bearing with flanges on , I presumed it would go on the last bearing number 5 but it don't , they are both smooth bearings without flanges , ps the bearing with flanges that I have has lower written on it so it has to go into one of the lower journals . I have looked at it going into the center one with the other one with flanges but the little lug is off center and it wont sit in , any ideas pls
 
You must log in or register to reply here.

Similar threads

mad85
Disco 2 TD5 Low Fuel pressure!!
2
Replies
22
Views
620
mad85
mad85
Rickspark
Oil Pressure Relief Valve - What should it look like?
Replies
3
Views
729
Rickspark
Rickspark
R
3.9 EFI relay help
Replies
4
Views
905
rps88
R
L
More Power - How far can you go?
Replies
17
Views
3K
LetsHopeItFits
L
Chalky.
Potential Oil pressure issue
2
Replies
28
Views
4K
Chalky.
Chalky.
Back
Top