Recent content by Gabe J DiMarino

Im sorry what solution is going to disolve a HS STEEL TAP ?

I have seen this done where the half's are silver soldered together . The way you made these could you of threaded the bottom half of the bearing and bolted them together .After boring and finishing , cut out the threads from bottom hemisphere of the bearing.

This one?

I had no idea how many hours I would have tied up in these rocker arms . 420 STAINLEASS STEEL BODY . HIGH SPEED STEEL PIVIOT PIN . .157 DIAMETER BALL BEARING FOR TIP ROLLER.

Those heads and manifold are wicked . Wonder how he made the sand core for the heads .

Yes sir All parts,ecept the motor and fasteners .

Here is a link to a scale model of a punch press I made over the thanksgiving / christmas break.

Your using rubber O- rings for piston rings in internal combustion engines running gasoline as fuel ? What keeps the O-ring from melting ? /

Many years ago I was told .What makes a good tool maker is if you make a mistake being able to fix it .Fix it in a way no one can tell it was fixed ! To me it makes more sense to save a part . Granted there are times when you have to start over . A part has 3 functions .FORM ,FIT, FUNCTION ...

The trick is to remove all the lines from the previous grade of paper before moving to finer grades . I do 120, 180 ,200 ,240 ,320 , 400 ,500, 600 ,800 ,1000 some lapping compound then multi stage buff .Then semi-chrome or Mothers Paste . Polish in the same direction . If you get to 320 and see...

If its that difficult to align your head maybe you should get a tilting table and some sine vises and leave the head alone and tilt the work piece ?

I do something similar to MADJACK I use a precision square on the mill table and slide it till it comes in contact with an extended quill .Adjust the head till it looks good left to right and front to back .Snug up the bolts . I have a plate that has been flat ground very accurately .I put that...

Since we are talking about spark plugs can a welding tungsten be used as an electrode.

Is the crankshaft part of the casting set ?

doc 1955 would you mind sharing a pic of the container for the black silicone you are using ? Any numbers on the can ? Thank you sir.