hi folks,
my pride magna 3l V6 broke today whilst starting the engine! :cry:
what happened?
my harmonic balancer or crankshaft pulley devided itself into two parts. the pully fixed to shaft remained, the rubber dumper disappeared and the two belts carrying groved pulley flew away with a metallic noise. both belts, a/c and pow steer / alternator sag around. luckily mitsu used chains for cam timing, therefore my engine is still allright! :) puh
is there someone, who replaced the crankshaft pulley without pulling the whole engine out of the car? hope so...
hints to replace the bl**dy expencive pulley are very welcome! i read something about 300 bux for a spare part?! and i believe, that i have to replace the belts and some other pulleies as well. the engine already ran 280.000, so all the parts are pretty worn.

cheers 2fast

ps: please only practical tips, do have strange ideas by myself
_________________________________
"what is better than displacement?
much more displacement!"

This pulley can be replaced without removing the engine. This is a fairly simple job there's just not a lot of room.

From under the car take of any plastic cover needed to get at the pulley, use a socket to undo the bolt holding it on you may need to put a large screwdriver thru the pulley to stop it spinning when undoing the nut.
Slide the pulley off, slide the new pulley on making sure that you line up the locator for correct alignment. Torque the bolt up to specs (don't have gen 2 specs).

As far as all the fan belts go as long as their not cracking or damaged they can be re used. They too will need to be tensioned correctly (don't have gen 2 specs) dont over tighten as this can stuff alternator bearings.

This is a very generalised version to give you an idea of whats involved.

One other thing the V6 engines do not have timing chains they use belts (completely seperate from Alt,A/Con, Power steer belts)their not visible unless the covers on the front of the motor are removed. Only the 2.6 astrons had chains :D

As above, go to Jolly Rogers, there was a TF there with an engine in it still a while ago, the block may still be there.

Also the cause of this happening is usually the belts being done up too tight.

thanks both of you, philsTH and madmagna, for your quick and helpful reply!

@madmagna: you said maybe a v6 engine stands at Jolly Rogers. where is this place? hope in melb.
guess my biggest issue is tools. i newly moved to melb and dont have anything else than some combination wrenches and a screw driver with me.
now i will call supercheap and some wreckers to get the pulley. afterwards i will try philsTH advice on the magna.

let you know what happended...

cheers 2fast
_________________________________
"what is better than displacement?
much more displacement!"

is the crankshaft bolt reverse thread?

For starters the puley has no holes in it to shove a screwdriver through it.

Secondly, if you try a long breaker bar, rest this between the suspension and the lower control arm. Disconnect the crank angle sensor, give the engine a quick crank, and this should crack the bolt. Be careful though.

wow, i asked mitsubishi for the price of the pulley and the spare-parts-man answered: "580 A$ without labour!"
then i tried to get it second hand and i was lucky, spent 70 bux.

@4PLEAZN™
your question about the crankshaft bolt is interesting.
is it a reverse thread? or not?

@madmagna
i had a closer look on the pulley and there are for oval holes, all about 15mm in diameter, evenly distributed on a circle around the center bolt.
but i think you are right, a screwdriver does not prevent the pulley (crankshaft) to turn while unfasten the pulley bolt.
your idea to remove the bolt sounds very interesting to me.
did i get you right to use the breaker bar as a lever to hold the pulley (crankshaft) in its position and unfasten the bolt with a socket? or what did you mean with "give the engine a quick crank"?

thanks again
2fast
_________________________________
"what is better than displacement?
much more displacement!"

A good auto spares place will stock aftermarket balancers from a company called Precision Parts.

I work for the foundry that supplies their castings.

Their stuff is all new, not a bodgy recondition job.

www.precisionparts.com.au.

Gerry :badgrin:

the bolt IS NOT reverse thread :)

another way to take it off is to take the starter motor off and jam up the flywheel (i dont like this way as i hate jamming things up but its quite affective haha)

then undo the bolt with the flywheel jammed :D

and what mad magna was saying is to crank the engine over

oh thanks for the hint, that the bolt is not reverse thread!
and i will try to block the flywheel after removing the starter engine.

if i am not successful today, maybe i need some assistance.
may i ask one of you to help me? :)

cu
2fast
_______________________________
"what is better than displacement?
much more displacement!"

im in adelaide haha

i am a little, only little bit depressed.
my effort to crack the center bolt did not succed.
spraying the bolt with rost cleaner, then disassembling the starter motor, jamming the flywheel and then trying to turn the spanner counter clockwise but nothing moved at all. if i would have tried harder the spanner would have worn the hexagonal bolt.

now you will ask: why do you use a spanner and not a socket wrench or a rachet?
the inner square of the bolt is worn out, thanks to the previous owner who didn't replace it after disassembling and assembling. therefore the 3/8'' socket wrench doesn't fit properly in the inner square. and last but not least due to the inner one worn out, the outer hexagonal one is expanded at the outer edges around the circumference. no way to push the socket over the bolt with the hand. (to use a hammer would be fatal to the crankshaft bearing!?) using a file to rasp a bit away from the bolt would maybe allow to fit the socket over it.

isn't there anyone around melbourne, who has a little time to assist me? (thanks 4PLEAZN™ but you are a little tooooo far.) and no question i will pay for your petrol and expenses.

cheers to all of you and have a nice weekend
2fast now very slow by feet
_________________________________
"what is better than displacement?
much more displacement!"

Hey guys,
I did the yob at last and am very lucky to hear the V6 bawl again! :-)
But this was only possible with the helping hand of my friend, Flo, who assisted me holding the flywheel.
THANKS again to all of you, who helped me in the forum!!!

Stay loud and proud,
Yours
2Fast
______________________________
What is better than displacement?
Much more displacement!