Hmmmm. The wheels in my head are spinning again

[Mopar Sam]

Thin Wall Aluminum Tubing Sizes from 1/8" through 12-3⁄4" OD | Vita Needle Company

I wonder how this aluminum tube would work. .035 wall?
Probably expensive since they don't post prices.

 

[famous bob]

Thin Wall Aluminum Tubing Sizes from 1/8" through 12-3⁄4" OD | Vita Needle Company

I wonder how this aluminum tube would work. .035 wall?
Probably expensive since they don't post prices.

I am amqazed the amount of pics I see , that the casting flash hasnt been cleaned up.

 

[TurboGLH]

I'm getting ready to tube the block for my stroker build, MP kit is long gone obviously.

I'm looking at .032 wall copper, seems sufficient in my head. Anyone want to chime in with what they use?

 

[pittsburghracer]

I'm getting ready to tube the block for my stroker build, MP kit is long gone obviously.

I'm looking at .032 wall copper, seems sufficient in my head. Anyone want to chime in with what they use?

The only thing I can add is I hope you have I hone, I didn’t. I ran the 9/16 drill bit through the galley and tried to team it some with the drill bit and I still had to BEAT that 9/16 tubing into the galley the last few inches. If it was aluminum there’s no way it would have taken the abuse that stainless did. I will use the 9/16 on another block I have sitting here because it is already machined. Then it will be back to 1/2 inch house copper tubing for me (5/8 outside) as it is easier to work with.

 

[pittsburghracer]

I’ll try to check the thickness of the 1/2 inch copper tubing today as I have 10 pieces cut ready to go.

 

[TurboGLH]

The only thing I can add is I hope you have I hone, I didn’t. I ran the 9/16 drill bit through the galley and tried to team it some with the drill bit and I still had to BEAT that 9/16 tubing into the galley the last few inches. If it was aluminum there’s no way it would have taken the abuse that stainless did. I will use the 9/16 on another block I have sitting here because it is already machined. Then it will be back to 1/2 inch house copper tubing for me (5/8 outside) as it is easier to work with.

I plan to use a long ream to bring it to a slight press fit, .001 tight or so.

I’ll try to check the thickness of the 1/2 inch copper tubing today as I have 10 pieces cut ready to go.

Thanks, much appreciated.

 

[yellow rose]

I plan to use a long ream to bring it to a slight press fit, .001 tight or so.



Thanks, much appreciated.

You really don't need any press fit. When you peen the tube it will never get out.

 

[pittsburghracer]

You really don't need any press fit. When you peen the tube it will never get out.

Some guys said they had an issue with the tube trying to turn when they use the peening tool. Mine have never been anywhere near loose enough to do that but like I said I don’t have a hone. It looks like the copper tubing is around .035-.038 thick. (1/2 inch house tubing) 5/8 outside diameter

 

[famous bob]

View attachment 1715486907


Some guys said they had an issue with the tube trying to turn when they use the peening tool. Mine have never been anywhere near loose enough to do that but like I said I don’t have a hone. It looks like the copper tubing is around .035-.038 thick. (1/2 inch house tubing) 5/8 outside diameter

Type ''m'' hard copper ??

 

[gzig5]

I plan to use a long ream to bring it to a slight press fit, .001 tight or so.



Thanks, much appreciated.

If you truly have a .001" press fit over 10-12" of 5/8" pipe, you will never get it in there. No way. I need several tons of pressure in a press to make that .001" fit go an inch deep without heating the female part. Aim for a line on line fit because non of this pipe being pounded in is accurate or round. I'd rather have it go in a little loose and then swage the end and at the lifter bores to seat it.

 

[famous bob]

If you truly have a .001" press fit over 10-12" of 5/8" pipe, you will never get it in there. No way. I need several tons of pressure in a press to make that .001" fit go an inch deep without heating the female part. Aim for a line on line fit because non of this pipe being pounded in is accurate or round. I'd rather have it go in a little loose and then swage the end and at the lifter bores to seat it.

Anyone ever try freezing the tubes before insertion ?

 

[pittsburghracer]

Anyone ever try freezing the tubes before insertion ?

Not doing this job but during my Millwright years we shrunk stuff almost daily (cold) and expanded stuff (heat) building stuff in our shop. We had pins that it took four guys swinging 14-16 pound sledgehammers that were chilled in dry ice and alcohol and beat it. Then we started getting liquid nitrogen and man was that stuff a blessing. Those pins tapped in. But if you weren’t careful you could lose body parts.