MMWS (Cross Performance) 066/660 Cylinders

[Brewz]

Looks like it's plated to the top, and even out on the squish band. Probably just not honed all the way to the top.

My 084 CP cylinder was the same. Plated to the combustion chamber.
Whats the best way to take some off the squish with the plating on there?

I assume one would need to use a cutter as sanding wont work.

 

[Red97]

My 084 CP cylinder was the same. Plated to the combustion chamber.
Whats the best way to take some off the squish with the plating on there?

I assume one would need to use a cutter as sanding wont work.

Sanding is easier than a cutter. Hand cutting the plating likes to chip and dig.

 

[mdavlee]

Sanding is easier than a cutter. Hand cutting the plating likes to chip and dig.

I have cut a few with plating. Have to set th cutter on more of an angle at first.

 

[Mastermind]

I've not cut any plated jugs by hand I a long time. Tough to just take out a little.

 

[Brewz]

My legs aint skinny enough to own a lathe.
maybe one day

 

[Mastermind]

My legs aint skinny enough to own a lathe.
maybe one day

I got this one I use now from Enco on a clearance sale. It was pretty cheap.

 

[Brewz]

Mmmmm unfortunately I only do this as a hobby and cut the squish from less than 10 a year.
Even a cheap lathe needs tooling etc

I will find a way

Right now I am saving my pennies for a Mac SP 125

 

[Mastermind]

A worthy cause Tony.

 

[Brewz]

Yes my friend..... I believe so!
The 090 is not doing it for me. I an chasing something nastier.

Anyway, back on topic.

My CP 066 top end is still in the mail
Looking forward to seeing if I get a good one or a bad one.
Its like child birth and waiting to know if its an innie or an outie

 

[Mastermind]

I hope it's a good one.

 

[Brewz]

I live 15 minutes away from Mcbob

going to visit him again tomorrow to discuss

 

[Moparmyway]

It scratches just like the chamber

 

[Brewz]

It scratches just like the chamberView attachment 44741

Ahhhh it might just be residue or colour

I plan to have some fun with mine and get the exhaust down around 104 to see how it goes

Will fill the intake if I have to

 

[drf256]

It scratches just like the chamberView attachment 44741

Odd Kevin, it really does look plated.

Is the transition from the normal plating to that discolored upper band able to be felt with a pick? I looked that the NWP 260 jug here again, excited that maybe the ring of death was just not honed. There's a noticeable difference in bore on the NWP in that ring. You can feel it dip there.

 

[Brewz]

Just went and attacked the band on my CP 084 cylinder that looks like it has the band plated and I can confirm it is NOT plated.

You rippa!

I assume the 066 jugs will be the same as they look identical

 

[Moparmyway]

I'm not sure what it is, to be honest.
It could be or it couldnt be.
I hope that Randy is correct.

Al, I was fighting the clock and the cold early this morning (02:30) when I checked. I remember checking one new aftermarket cylinder quickly with a dental pick, and I'm not 100% sure which one it was, I wish I remembered, but one was smoothe. I'll be looking at exactly what you asked in better detail tomorrow morning, or if I get home late tonight.

 

[Brewz]

I am so going to get that exhaust as low as I can

 

[Moparmyway]

I am so going to get that exhaust as low as I can

Be carefull to see if the ring catches the interface of the coating to the cylinder if youre going to cut the base. I went too far once, it sounded like a bag being crumpled, twas the ring catching the plating.

 

[Brewz]

If these things are at the 101* stated it only needs .030 off the base

that's bugger all.

 

[drf256]

Yup.

They don't call it "The ring of death" for nothing.

Take a clay imprint and measure where your top ring will land.