Post up your ported cylinder Artwork

[mdavlee]

#metoo. Has to do with ring pin location.





Looks awesome, as usual. Countless times I’ve thought I had a great cutter filed just right to post a pic of. Zoom in with my camera, snap the pic then look at it and see all kinda wrong.
Made me wonder because I have a 394 cyl here with damaged plating. A bunch of little circles missing but wouldn’t really call it pitting.

If it looks original it will be fine. Seen a lot of KS 064 and 044 jugs with them that are running 30 years later

 

[Wolverine]

If it looks original it will be fine. Seen a lot of KS 064 and 044 jugs with them that are running 30 years later

Not sure about this one.

 

[Lightning Performance]

10-4. Not sure about the compression height, but the ring pins are over the intake rather than the corners and I believe the skirt is just a hair shorter on them

Kinda wish my 394 didn't have such a wide intake. The exhaust is about the same width if not wider so no flipping around a stock oe piston. The intake will need work to run a 395 piston in it.

 

[Lightning Performance]

Not sure about this one.
View attachment 229855 View attachment 229856

Run it or send it here. No sharp edges or peeling

 

[huskihl]

Kinda wish my 394 didn't have such a wide intake. The exhaust is about the same width if not wider so no flipping around a stock oe piston. The intake will need work to run a 395 piston in it.

Can’t need much work. I think it only opens 2-3* earlier. I believe the size of the intakes are the same between the 394/5

 

[Lightning Performance]

This one is already ported and it is about all you would ever want in a work saw. It needs a few things addressed and back it goes to run some more. Just waiting on more parts to check another 394 piston... hopefully without a floppy ring pin bore up top. The piston and rings are still good. The ring beat the pin real good. It fell out during inspection. Egg holed pretty good.

Can’t need much work. I think it only opens 2-3* earlier. I believe the size of the intakes are the same between the 394/5

I'm thinking the 394 might be a bit wider stock than a 395 but a none issue.
My transfers are unlike any I've seen or done. Interesting and maybe I get it as in understand the thing... maybe not.

 

[srcarr52]

This one is already ported and it is about all you would ever want in a work saw. It needs a few things addressed and back it goes to run some more. Just waiting on more parts to check another 394 piston... hopefully without a floppy ring pin bore up top. The piston and rings are still good. The ring beat the pin real good. It fell out during inspection. Egg holed pretty good.

I'm thinking the 394 might be a bit wider stock than a 395 but a none issue.
My transfers are unlike any I've seen or done. Interesting and maybe I get it as in understand the thing... maybe not.

Skirts are the same width, 394 piston has a 0.040" longer skirt and the locating pins are over the skirt edges.

 

[mdavlee]

Not sure about this one.
View attachment 229855 View attachment 229856

That’s more than bubbles from when it was plated. It might still run a while if there’s no rough edges on the holes to catch the rings

 

[huskihl]

That’s more than bubbles from when it was plated. It might still run a while if there’s no rough edges on the holes to catch the rings

I wonder if it is similar to mag rot for aluminum? Maybe there were some water spots left there when it was plated and then they began to corrode over time? Sort of like efflorescence on concrete

 

[Wolverine]

My thought was maybe someone was sloppy with the muriatic.

 

[huskihl]

My thought was maybe someone was sloppy with the muriatic.

There would have to be holes there already. I swab every used cylinder I buy in case there’s some underlying transfer still present. Just to make sure that it’s all gone.
But to your point, I can see where tiny insignificant holes could allow acid in and undermine the aluminum causing a larger area to pop off.

 

[mdavlee]

I wonder if it is similar to mag rot for aluminum? Maybe there were some water spots left there when it was plated and then they began to corrode over time? Sort of like efflorescence on concrete

I’ve seen it a couple times actually. It must be some reaction in the notes after sitting so long that does that to the plating

 

[Lightning Performance]

I’ve seen it a couple times actually. It must be some reaction in the notes after sitting so long that does that to the plating

Never seen it that plentiful. A fair assumption indeed.

 

[mdavlee]

Never seen it that plentiful. A fair assumption indeed.

I had 3 Husky cylinders and one stihl branded that looked perfect through the exhaust have those spots when I pulled the jug.

 

[MG porting]

I had 3 Husky cylinders and one stihl branded that looked perfect through the exhaust have those spots when I pulled the jug.

Both of my 064 cylinders have the same little spots on them and came that way new so gos to show you there not always perfect from the factory.

 

[mdavlee]

Both of my 064 cylinders have the same little spots on them and came that way new so gos to show you there not always perfect from the factory.

I was talking about big spots like 1/8”. Ive seen a ton of KS and older mahle with small pinholes.

 

[PA Dan]

I was talking about big spots like 1/8”. Ive seen a ton of KS and older mahle with small pinholes.

I have a KS 262xp cylinder with a pin hole spot. Crushed me when I found it. Glad I showed to to people brighter than me![emoji6]

 

[MG porting]

I was talking about big spots like 1/8”. Ive seen a ton of KS and older mahle with small pinholes.

Lol. Ok makes sense now.

 

[redlight066]

661 in for a little go fast.

 

[mettee]