Rons' Mastiff

[Bill Gruby]

Chuck emailed them to me but page #5 was blank. What is on it?

"Billy G"

 

[ozzie46]

Bill. I uploaded the file to the downloads section under "plans and drawings" but it ended up with a ,php exstension
instead of a .pdf. I don't know how to fix it.

Can you or someone fix it?

Otherwise pm me your e-mail and I'll e-mail it to you.

Ron

 

[Bill Gruby]

The file is fine, it opens as a PDF.

"Billy G"

 

[ozzie46]

I haven't posted anything on this for awhile but I have been making progress.


I took a slab of cast iron


http://s661.photobucket.com/user/ozzie46/media/Tools/Mastiff%20Pics/DSC03108.jpg.html][/URL]


and found this inside.


http://s661.photobucket.com/user/ozzie46/media/Tools/Mastiff%20Pics/DSC03109.jpg.html][/URL]


I first made it sort of close to round by sawing corners off in the band saw. I then gripped it in the 4 jaw by about ½ in and turned it round close to size. Then reversed it in the 4 jaw and repeated the exercise. Then I drilled the crankshaft hole to prepare it for bore the taper for the split collet later on.


I then changed to the 3 jaw chuck and machined up the split collet and parted it off.






http://s661.photobucket.com/user/ozzie46/media/Tools/Mastiff%20Pics/DSC03110.jpg.html][/URL]


Then I mounted the fly wheel blank in the 3 jaw up against the back of the jaws and bored the taper and faced it. Changed to my 5 C collet chuck and turned up a dummy crankshaft end and mounted the split taper collet and fly wheel on it and finish machining it to size. Trepanned in the recess in the face of the fly wheel and drilled the 2 holes 180* apart for the tool to remove the fly wheel from the shaft when needed.


Trial fit on engine.
http://s661.photobucket.com/user/ozzie46/media/Tools/Mastiff%20Pics/DSC03112.jpg.html][/URL]


More to come.


Ron

 

[ozzie46]

I silver soldered up some pieces to make the oil pump casing.


http://s661.photobucket.com/user/ozzie46/media/Tools/Mastiff%20Pics/DSC03116.jpg.html][/URL]


Sorry for blurry pic.


http://s661.photobucket.com/user/ozzie46/media/Tools/Mastiff%20Pics/DSC03117.jpg.html][/URL]


How ever I have to make another one as I didn't get the center distance for the gears right and they wouldn't fit. I used gears I had taken out of a printer that were close to the right outside diameter by about 20 or 30 thou. I didn't know the PCD and tried to spot from the gears and it didn't work.
Oh well, do over time.
I ordered gears of a known pitch so I can at least have a chance at getting it right this time.


Here is a pic of the helical gears I cut mounted in the engine. They turn fine.


http://s661.photobucket.com/user/ozzie46/media/Tools/Mastiff%20Pics/DSC03114.jpg.html][/URL]


And a glamor shot. :whistle:



http://s661.photobucket.com/user/ozzie46/media/Tools/Mastiff%20Pics/DSC03113.jpg.html][/URL]


Ron

 

[Tamper84]

Wow!!! Can't believe I missed this!!! Man I need to get off my but And start doing this stuff!! So cool, but the setup for the cam shaft, wow. Just about makes my head hurt!!

Chris

 

[ozzie46]

Thanks Chris.

Ron

 

[Bill Gruby]

Have you cranked them at speed you or just by hand? A cordless drill will help. Great job so far. I have to get back to my build but with a wedding in Sept. it's tough to find the time.

"Billy G"

 

[ozzie46]

Just by hand so far Bill. Once I get a workable oil pump I'll do it with the drill. The upper pafrt of the oil pump is the bearing for the lower part of the vertical shaft for the points cam and oil pump drive.

I was wondering about the lack of posts for the radial. Wedding planning! My sympathies on one hand and congrats on the other.

Ron

 

[Bill Gruby]

I PM'd you on your valve seat problem. Seating SS to Aluminum is a lesson in futility sometimes.

"Billy G"