Installing a CROSS PERFORMANCE cylinder Kit for my Stihl 084.

[rattler]

Dang that sucks man

 

[DSS]

That's a bee-itch

 

[Canadian farm boy]

I feel your pain. That sucks

 

[sefh3]

Check the play in the rod bearing. How are the crankcase bearings? Something's loose to rock the piston to hit the crankcase.

 

[huskihl]

Did you reinstall the wrist pin bearing when you put the piston on?

 

[quietfly]

Check the play in the rod bearing. How are the crankcase bearings? Something's loose to rock the piston to hit the crankcase.

How would I do this?

Did you reinstall the wrist pin bearing when you put the piston on?

Yup.

 

[jakethesnake]

Curveball sir put her back together again.... I'm here to learn what happened at this point. Tough break sorry boss man...

 

[quietfly]

So what should my next steps be?

1. Checking rod and crankcase bearings.
2. Order new piston and rings.
3. Attempt to fix cylinder or use old ok one.

Any other suggestions?

 

[huskihl]

How would I do this?

Look at where the rod meets the crankshaft down in the case. You'll see roller bearings. Make sure they're all there. Use a flashlight. It's tight. Not much room in there

 

[beaglebriar]

Hopefully the rod bearing is good and it came from a crank bearing.

 

[rattler]

The rod will slide side to side should be no up and down play in the bearing.

Sent from my XT1060 using Tapatalk

 

[beaglebriar]

That cylinder is fubared. Back to the original but not until you overhaul the bottom end.

 

[rattler]

If you would like you can send the cylinder to me I will try to clean it up for you you just cover shipping if it would help you out.

Sent from my XT1060 using Tapatalk

 

[huskihl]

So what should my next steps be?

1. Checking rod and crankcase bearings.
2. Order new piston and rings.
3. Attempt to fix cylinder or us old ok one.

Any other suggestions?

The new p/c are smoked. At least you didn't ruin your oem jug (trying to interject some positivity here). Order a piston and crank seals and clean up the old oem jug.

Check your carb throttle plate for a missing screw. And I'd at least inspect the main crank bearings from outside for chunks of missing cage.
Is the cross piston exactly the same height as the oem one? Stick the wrist pin a half inch into each piston (connecting them together) and compare skirt and crown height

 

[Gunn]

I'd be checking for missing bearings or cage.

It wouldn't hurt to pull the seals. It'll be easier to inspect the crank case bearings and you can flush everything out.

 

[quietfly]

There's definitely crap down there.

This has escalated quickly...

So the question ive been dreading all night. What's involved in redoing the lower part of the case and what all do i need to order? And suggestions on where from.
Any specific tools?

 

[quietfly]

Oddly enough, this is exactly what my wife warned me would happen. Good thing she doesn't read this board, or I'd never here the end of it. Nothing worst than a pregnant woman with a case of the i told you so's...

 

[quietfly]

I know I'm probably way over my head now so im going to lean pretty heavily on this board to help get me back cutting wood.

 

[Four Paws]

There's definitely crap down there.

This has escalated quickly...

So the question ive been dreading all night. What's involved in redoing the lower part of the case and what all do i need to order? And suggestions on where from.
Any specific tools?
View attachment 16956

Those chunks look like your piston skirt. It would be nice to find out what caused the damage. As others have said, you need to inspect the big end (of the rod) bearing and the crank bearings.

Very unfortunate situation you have found yourself in.

Splitting a case isn't extremely difficult. You would benefit from having a case splitter, a heat gun, a flywheel puller, and an assortment of hammers. Honestly, it may be in your best interest to send your saw off to one of the saw builders and pay them to refresh the bottom end.

 

[huskihl]

I'd enlist the help of a nearby member, if possible. Splitting an 084 and installing bearings could be a bit overwhelming for a first timer. Just throwing it out there. No offense meant