How long does stroked engines last without silent shafts

[flav]

Coz if you do a full one you will be down on pressure.

[toysrus]

That's a given, what didn't make sense was >>

.........but stop it before the end where it would otherwise spill out the bearing.

If you think about it logically, the Full groove would just be an extension of the oil gallery around the centre of the Balance shaft journal and the oil pressure is created by the gap (between the journal & bearing) and width at that gap, so realisitcally you would want a deeper & skinner channel instead of wider and shallow :beer

[flav]

no...well, mabey worth a try.??? ..but going by the mits. mod. on the bearing, no.

[woops]

I've had a problem when i've tried to remove the balance shafts from my engine. I have removed them all fine and cut off the oil pump one but i can't remove the bearing at the front of the block for the other balance shaft so i can rotate it to block the oil feed. Does it need to be pulled out the block towards the front of the block or is there another way. I've tried my best and i can't seem to get it to move at all.

I can't find any tool shops either that have the toll designed for the job either. I think the only other options that i have left is to go to mitsubishi and see if they have the right tool that they show in the workshop manual or just cut it out and get a new bearing to replace it.

I have the block and everything out of the car and on a stand but i can't get this stupid bearing out.

Any help on ways to remove this bearing would be very much appreciated.

[toysrus]

Try a couple of the local Engine reconditioning Workshops. There a a few different engines out there from different manufacturers with Balance-shafts fitted so any reasonably sized production line Workshop will be able to do it for you. For reference sake it cost $70 to have my old ones removed and the new ones fitted.

[toysrus]

no...well, mabey worth a try.??? ..but going by the mits. mod. on the bearing, no.

Yeah, I'll see how it goes.

The only issue I have with doing it to the bearing was the extra time it would take setting up the tooling to go inside the bearing and cut it up on a lathe plus then having to micropolish it and hope that I hadn't sub-fractured the material layers such that they would then break up on use and ruin the Engine :x

Having it done on the shaft allowed me to go skinner but deeper and having had it re-nitrating should save me any worries :beer

[woops]

Problem is that at the moment to get the engine down to anywhere it a bit of a problem and that bearing is the only thing i have left to sort out before i can go and put the engine back together.

[toysrus]

Hmm, these balance shaft bearings actually have a SS shaped cut through them so if you can pry something inbetween the back of the bearing and the block next to this cut, you should be able to bend a bit of the bearing down permanently and hence make it into a smaller circle shape thus easy to come out. See how you go with that :beer

Only problem is space....... I'll happily send you a pack of new ACL Balance Shaft bearings for $40 Posted if you've damaged the other 2 bearings beyond use also ?

[flav]

There is a pipe expander avail. from speed shops, this may do the job if it has a flat edge on the end. Many types are avail, but this is usually a specialised tool thats turned down to fit in the bearing and over the side. Its attatched to a long bar that u hold central and tap it with a hammer at the end.