Whelp, restomod it is then.

[PastaPirate13]

Well, it sucks to find this after putting so much time and effort into this thing but it is what it is I suppose. The strangest thing is that you would've never even suspected a spun bearing. The engine ran fine aside from the MAF sensor issues, oil light never came on when it shouldn't have and it pulled hard all the way up to redline. I thought about just putting new bearings in and hoping for the best but I'll have to pull the engine anyway, no point in prolonging the inevitable. Now it's time to aquire an engine hoist and stand, and prepare to pull this engine out.

 

[NoSlo]

You could also just slap a new bearing on there after polishing it up with a loop of 3000 grit, and plastigauge and see what you get. Put another pair of bearings on next oil change.

 

[Irish Pride]

Can you feel any damage on the crank when you run your finger nail across it?

I'd throw another bearing in it and start running 10/40 oil with Lucas and send it.

-Chad

 

[SM105K]

Can you feel any damage on the crank when you run your finger nail across it?

I'd throw another bearing in it and start running 10/40 oil with Lucas and send it.

-Chad

I would be strangely comfortable with that.

 

[luigisho]

I'd get a used working 3.2, change the rod bearings and anything else you feel comfortable with while it's out of the car... swap the oil pan maybe the heads and run that.

 

[yaycandy]

Can you feel any damage on the crank when you run your finger nail across it?

I'd throw another bearing in it and start running 10/40 oil with Lucas and send it.

-Chad

Then rev it to 8500rpm and see what Jesus has planned for its future…

 

[PastaPirate13]

I think I'm just gonna pull the engine out, tear it down and rebuild it. I might try to find another engine to mess with in the meantime.

 

[yaycandy]

I think I'm just gonna pull the engine out, tear it down and rebuild it. I might try to find another engine to mess with in the meantime.

Some bearings are hard to find. I have the SKF part number for the rod bearings and since i work for them ive been trying to have them start producing them again for a run or 2. But it seems like its a Ford or Yamaha issue with reproduction rights and all. I dont know how it works. I think they want the engines to not be around.

I think im confusing the v6 with the v8. V6 one is easy to find bearings for. Its the v8 one thats hard to find bearings

 

[yaycandy]

If you need to send the crank out. I know the owner of crankshaft supply in Minnesota. I actually just got a crank back from them for my little Miata. Real good price and if they have to grind it they supply the bearing. They really made my crank look new. But im guessing crank will be starred out on here.

Theres my bill and before and after pic. Crank was fine when it came out, just laid on the garage floor for a few years….

 

[Tbird6]

Too bad to hear that! Glad your going to rebuild it too.

When I had my 1993 SHO years ago it was common advice to replace the rod bearings somewhere around 60K-80K miles. I did this to 2 1993 SHO's. At least it can be done with the engine in the car and it turned out to not be too bad of a job after all.

I had copper showing on the upper bearing on all cylinders.
.
.
.

 

[PastaPirate13]

Too bad to hear that! Glad your going to rebuild it too.

When I had my 1993 SHO years ago it was common advice to replace the rod bearings somewhere around 60K-80K miles. I did this to 2 1993 SHO's. At least it can be done with the engine in the car and it turned out to not be too bad of a job after all.

I had copper showing on the upper bearing on all cylinders.
.
.
.

I was excited to do the rod bearings as it was that and the subframe bushings and front sway bar that were the biggest jobs left until it was at least ready to drive again. At least now I can tear the engine down and give it a proper rebuild and maybe have some head and valve work done while I'm at it.