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Cat Main Caps

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bbf-falcon
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Post  Tore July 19th 2016, 10:23 am

Can you still buy those Chinese Main Caps from Cat? I never see them listed anymore.

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Post  crittersf1 July 20th 2016, 10:41 am

I think CAT has gone by the wayside
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Post  Tore July 20th 2016, 12:47 pm

crittersf1 wrote:I think CAT has gone by the wayside

Just found them during lunch. They go Speedmaster. There harder than wood pecker lips to machine but if you take and reduce your depth of cut your ok.


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Post  dfree383 July 20th 2016, 5:15 pm

Tore wrote:
crittersf1 wrote:I think CAT has gone by the wayside

Just found them during lunch. They go Speedmaster.  There harder than wood pecker lips to machine but if you take and reduce your depth of cut your ok.


Tore

The milodon caps are much nicer
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Post  bbf-falcon July 21st 2016, 8:04 am

Tore wrote:
crittersf1 wrote:I think CAT has gone by the wayside

Just found them during lunch. They go Speedmaster.  There harder than wood pecker lips to machine but if you take and reduce your depth of cut your ok.


Tore
How hard is a woodpeckers lips?Not as hard as getting eggs and water at Norw@lk on a sat. morn. Embarassed

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Post  crittersf1 July 21st 2016, 9:26 am

I saw a set of caps at PRI several years ago but can't remember who was making them
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Post  Tore July 21st 2016, 10:57 am

bbf-falcon wrote:
Tore wrote:
crittersf1 wrote:I think CAT has gone by the wayside

Just found them during lunch. They go Speedmaster.  There harder than wood pecker lips to machine but if you take and reduce your depth of cut your ok.


Tore
How hard is a woodpeckers lips?Not as hard as getting eggs and water at Norw@lk on a sat. morn. Embarassed

About even I figure!
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Post  Tore July 21st 2016, 10:59 am

crittersf1 wrote:I saw a set of caps at PRI several years ago but can't remember who was making them
The place that sells them are out of stock but for $100.00 for a set I can't buy the material and make them my self.
I have a set in an engine now and have had no issues at all. As I say they do spark a little when your cutting them if the depth of cut is to heavy.


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Post  Paul Kane July 22nd 2016, 1:48 pm

Tore wrote:
crittersf1 wrote:I think CAT has gone by the wayside

Just found them during lunch. They go Speedmaster.  There harder than wood pecker lips to machine but if you take and reduce your depth of cut your ok.


Tore

The 385 Series main caps that have been supplied by CAT and Procomp are not identical between the two suppliers.

We've regularly had to take very light passes with the CAT caps due to their hardness; a lot of patience is required to machine past the case hardening but after that they are not unusual.

We have never had this problem with the ProComp (Speedmaster) main caps; they always machine easily, as expected, and without issue.  Unfortunately they have been on back order for quite awhile now and it's anyone's guess when they'll be stocked again.
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Post  rmcomprandy July 22nd 2016, 2:02 pm

"Pro-Gram Engineering" makes the best alloy steel main caps I have ever seen ... and, they are right in Barberton, Ohio.

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Post  maverick July 22nd 2016, 5:42 pm

bbf-falcon wrote:
Tore wrote:
crittersf1 wrote:I think CAT has gone by the wayside

Just found them during lunch. They go Speedmaster.  There harder than wood pecker lips to machine but if you take and reduce your depth of cut your ok.


Tore
How hard is a woodpeckers lips?Not as hard as getting eggs and water at Norw@lk on a sat. morn. Embarassed

As hard as calculus.
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Post  J.Toney July 22nd 2016, 9:27 pm

rmcomprandy wrote:"Pro-Gram Engineering" makes the best alloy steel main caps I have ever seen ... and, they are right in Barberton, Ohio.
Just had a set put "adapted" to a D1. Nice stuff!
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