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Old 11-15-2012, 10:05 PM   #111
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Okay joe d is taking on page 12 items 18,19,20 and 21.

With that I have updated the Excel spreadsheet ...

Team Build 8 details.xlsx

It should say November 15, 2012 rev1


Pat H.


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Old 11-15-2012, 11:24 PM   #112
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Thanks for the update Pat. I looked at the parts you mentioned in post #107 and don't have a definite answer. The drawing shows the valve spindle #18 and valve stem offset post #27 screwed together and silver soldered. Must be for reinforcement. The valve link rod #29 must pivot at both ends, so one of the dimensions is off. There should be a few thousandths of play between them.
The stock for the crankshafts is ready to machine but the oxygen bottle needs filled before the silver soldering will happen. Still mulling over
options for the flywheels. There's a hunk of bar holding open the shop door that might work, We'll see.

Regards,
Maverick


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Old 11-16-2012, 12:30 AM   #113
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Thanks for your input Maverick ...

I had Item 27 silver soldered to Valve Spindle (18 ) but the wording on page 16 made me change it.
Also in don-tucker build thread in post 46 picture clearly shows a soldering process.
The Pin diameter (#27) (.093) I would leave as is and change the hole (on 18 ) size to .0938 (drill 3/32") or .0935" drill # 42.
Or better yet a 3/32 reamer since there is a lot of rubbing.


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Originally Posted by Path View Post
Chris,
Item 27 (Valve Stem) is silver soldered to item 29 (Valve Link Rod)
according to the note on page 14 zone B3 .
But it is not clear to me as to why ... since it is bolted. Maybe for additional mechanical strength.

Additionally there seems to be fit issue with those parts (.087 hole vs .093 pin). Looks like that area needs to be looked into for clarification.

Maybe someone would comment on that.

.....

Pat H.

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Old 11-16-2012, 12:51 AM   #114
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I think that the solder is to make sure nothing comes loose during operation.
I will make sure that the pin and rod fit ( i believe those are are the ones I am making)
On a different note the pistons, I have spent the better part of the evening attempting to do make one outta stainless, well my toolong is not liking it at all so... do we want Brass or Steel as the plans call for?
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Old 11-16-2012, 01:04 AM   #115
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Chris ...

Super and yes you are making those two parts ... thanks.

What type of SS are you trying to turn ... if it's 304 it can be a problem. SS 303 is not nearly as bad but does work harden.

In any case, I like Brass as it will not rust over time.

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Old 11-16-2012, 01:17 AM   #116
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Im not sure what it is, but my hss bits pretty much make alotta noise heat and dont cut very well.
oh well I tried, Ill do it brass.
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Old 11-16-2012, 01:58 AM   #117
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Do you guys see any reason why the spreader bars on sheet 4 can't be made of aluminum? I plan on getting started on parts this weekend.

Dave
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Old 11-16-2012, 03:14 AM   #118
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Dave

I can't see any reason that you can't make the spreaders in ali.

Got material ordered, now the annoying waiting for delivery phase before
I can start making parts.

Joe
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Old 11-16-2012, 04:27 AM   #119
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I agree but wanted to check with others. I got the material for the rocker and pivot but will order the aluminum and brass for the other parts. I will get pictures of the corian I have and we can pick which will look good.

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Old 11-16-2012, 10:19 AM   #120
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Dave ...

The only issue with Aluminum for the spreader bars is stripping those small 2-56 threads.

Pat H.


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