Well this sucks

[huskihl]

I've had a few parts saws in the garage for awhile now. Some 066, an 044, and a 440. And a husky 395. I built a nice 066 from the pile with the help of some new parts as well. Today I figured I'd start an 044 project. I knew there was ring or piston failure, which didn't bother me. I've been able to save most cylinders by cleaning off the transfer. This is more of a failure than a scoring.

#1 An original KS 10mm slant fin


#2 A Gillardoni MS440 cylinder

 

[jake wells]

jb weld or aluminum filler like randy uses.

 

[huskihl]

I use it in the intake side, but not in the top of the exhaust port.

 

[mdavlee]

How high above the port is it?

 

[huskihl]

How high above the port is it?

I didn't measure it, but I'd say .080-.100". Which isn't terrible I guess. It's right in the middle about 3/16" wide. The damage to both cylinders is almost identical. One has a thin gouge up to the top of the exhaust, which might fill in with carbon anyway. The other has a 1/16" spot at the top of the bore where the plating is gone

 

[Redfin]

PIPE SAW!!!!

 

[mdavlee]

You could raise the exhaust up to keep them use able. If you cut the base and chamber on them you'd get .050-080" out any way.

 

[huskihl]

Yeah I was thinking if I cut .050 off the base and set squish, that might get rid of most of it. If I got rid of all of it, I'd have a 16,000 rpm screamer with a 16" bar.

 

[Magic_Man]

Can you port it out ?

 

[huskihl]

Or a 14,000 rpm screamer with 250 lbs compression. Hmmm......

 

[huskihl]

In pics 2 and 3, you can see what Mustang Mike was talking about in reference to transfer port quality in the gillardoni cylinder vs ks

 

[huskihl]

Can you port it out ?

I'll get them cleaned up in the next couple days and get the wheel on them and see how much exhaust port height I'd lose

 

[drf256]

After you cut the band, open the chamber a bit to lower comp. blend the squish band to chamber edge with a carbide ball and create a bell shape, or just radius on your lathe.

I bet with a squish cut, you may be able to grab 98* outa that sucker.

As you know, the amount you take out of the band isn't linear to the amount you'll need to raise the exhaust.

On a 262XP I did, a .040 band cut and .020 squish correction had me raise the exhaust almost .125 to get to 103*. I was quire suprised, and the saws pulling 240psi.

You can also go with the old T port design as well a pointed roof will lower cranking comp, be easy on rings, and effectively open/close later at rpm.

 

[drf256]

Or.....

You can send them to me for proper disposal. I'll even pay shipping.

 

[Redfin]

I still say hog that ex way up and Build a pipe.

 

[drf256]

I still say hog that ex way up and Build a pipe.

Would be highly cool, but I bet he won't need to.

I may be very wrong though.

 

[mdavlee]

It won't be that far to really take advantage of a pipe.

 

[psuiewalsh]

Like doc said, some of the partner and mac saws had a relief cast in at the ext centerline to bleed off cranking pressure. Sounds like a good experiment on a high compression build.

 

[CR888]

Raise the exhaust! oops that's already near done.lol I think with a little work that could be made into a nice runner, its injury could have been in far worse places IMO. You could end up with a highly desireable saw owing you not much, good luck with it.

 

[Redfin]

It won't be that far to really take advantage of a pipe.

He can go farther Mike. Im sure hes got the technology.