Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: blue_dream on 04 July 2013, 19:57:28

Title: front crankshaft bolt
Post by: blue_dream on 04 July 2013, 19:57:28
Evening guys
                  Ok, my meg has decide to chuck its engine oil over my driveway, when inspect i was hoping it was the oil pressure switch seal, to make sure cleaned the bottom of the engine, and left engine too idal for 10 minutes, engine being the 2.5 v6 x25xe, found oil coming from behind front crank, bloody hell, i have already checked breathers and cleaned out,i do this more then needed as something to do,i know sad, ok i know that the timing belt has to come of and the bolt is VERY tight but i would not be able to do up the bolt to the figuares stated, how important is this, would i need a new bolt or can i use the old one, would this take up end float on the crank, not sure  :-\ :-\
Title: Re: front crankshaft bolt
Post by: 2woody on 04 July 2013, 22:06:07
you'll find that by far the easiest way to remove the front bolt is to grind the head off, so yes, you'll need a new bolt.
Title: Re: front crankshaft bolt
Post by: tidla on 04 July 2013, 22:26:54
Decent air gun? ( rad space dependent)
Title: Re: front crankshaft bolt
Post by: Andy B on 04 July 2013, 22:37:36
I've never removed an Omega's, but have done my Senators' & other cars with the use of a decent fit ring spanner & well place wallop with a lump hammer!

Controversially there's the spanner/socket & breaker bar wedged against the floor & a quick flick of the starter motor. I've also used this method successfully too .........  ::) ::) (Make sure the engine isn't going to start though if you try it)
Title: Re: front crankshaft bolt
Post by: dbug on 04 July 2013, 23:11:21
I've never removed an Omega's, but have done my Senators' & other cars with the use of a decent fit ring spanner & well place wallop with a lump hammer!

Controversially there's the spanner/socket & breaker bar wedged against the floor & a quick flick of the starter motor. I've also used this method successfully too .........  ::) ::) (Make sure the engine isn't going to start though if you try it)

Yep used this myself - but not on an Omega - big risk of shearing woodruff key ;)
Title: Re: front crankshaft bolt
Post by: Andy B on 04 July 2013, 23:20:11
.....
- big risk of shearing woodruff key ;)

So they say ........  :-\  :-\  :-\
Title: Re: front crankshaft bolt
Post by: biggriffin on 05 July 2013, 08:47:14
The woodruf normally snaps when the thing is walloped to remove the spacer/pulley. Best to have a replacement handy just in case. :y
Title: Re: front crankshaft bolt
Post by: Marks DTM Calib on 05 July 2013, 10:24:44
You need to make a tool to hold the crank at the timing sprocket, then it s socket and bar to remove the bolt.

Beware, if you dont use a tool on the crank sprocket or lock it at the flywheel end then it will sheer the woodruff key which is part of the sintered crank sprocket.

I must have done 10+ of these and its not to hard to do.

Also, there is a spacer on the crank that the seal runs on, remove it and turn it around (clean it with fine wet and dry also) so the new seal runs on a new face.
Title: Re: front crankshaft bolt
Post by: blue_dream on 06 July 2013, 06:36:38
 Hi guys
          Thanks for all the replys, i've notice the figure to tighten the bolt back up is over 300 pounds, i won't be able to get it back to this figure would it be ok up to say 210, once again thanks