Stihl 076av rebuild

[Brewz]

I need something

 

[Brewz]

Had a closer look inside the cylinder once I cleaned it and there was some nasty damage to the top and bottom edges of all the ports and transfers.
Some of the marks in the squish are pretty bad.
Then when I started trying to remove the aluminum transfer in the cylinder a section of the plating lifted.

I will be getting a new Piston and cylinder for it.

 

[sefh3]

How does the rod bearing feel?

 

[jake wells]

Had a closer look inside the cylinder once I cleaned it and there was some nasty damage to the top and bottom edges of all the ports and transfers.
Some of the marks in the squish are pretty bad.
Then when I started trying to remove the aluminum transfer in the cylinder a section of the plating lifted.

I will be getting a new Piston and cylinder for it.

you to rough on it.

 

[Brewz]

How does the rod bearing feel?

Good.
Smooth and no play.

 

[Brewz]

you to rough on it.

Yeah probably was but the dints in the ports had bulged the cylinder bore in which had destroyed the piston.

Removing them meant removing the plating and probably altering port timing.

I am far more comfortable using a new one

 

[jake wells]

Yeah probably was but the dints in the ports had bulged the cylinder bore in which had destroyed the piston.

Removing them meant removing the plating and probably altering port timing.

I am far more comfortable using a new one

you going to mod the replacement?

 

[Brewz]

No mate, I just want it to run.
I already have a lot of time in it, and I have other projects waiting their turn.

One thing I found out was that you need a long 5mm screw to jack the oil pump out of the case.
Took me a while to work that one out as I was being cautious not wanting to break anything.

Just the old rubber seal on the oil pump is $38.

 

[jake wells]

looks like the pump has seen some use.
and i hope it runs good for you.

 

[Brewz]

Just dirty
In good condition under all the muck

 

[Lightning Performance]

very curious about timing on both jugs. have a plan for one of those 58's

 

[Glock37]

Stick rope in spark hole and use impack


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[Glock37]

Pm me if wanna do powder on the old girl


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[Glock37]

I just looked your down under Damn that far from me


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[Brewz]

very curious about timing on both jugs. have a plan for one of those 58's

Yeah I plan to get the case together and measure the old jug, then compare with the new one

 

[CR888]

Interesting rebuild! Builds that get your hands dirty are always the most rewarding when complete.

 

[Brewz]

Well then this one will be like winning lotto.

Every time I walk within 6 feet of the parts bin I need a shower.

I have to stop on the way home to buy some heavy duty brushes because the muck just doesn't want to come off

 

[Brewz]

Well that's all the big bits clean.

 

[VinceGU05]

its a big *s-wordty job but someone has to do it.

 

[Brewz]

I was playing with the crank and when I put some load on the big end bearing it feels a bit rough.
I think I am going to have to replace it.

Does anyone have any experience with the after market cranks?