raym/rupinow vert hit & miss

[Brian Rupnow]

Hi Ray---Good to hear from you. Your rings look great. I've never had a lot of luck making my own cast iron rings. You must be getting close to the finish line.---Brian

 

[el gringo]

In more ways than one....
Ray M

 

[Johno1958]

Thanks for those pictures on the ring making Ray.
I will definitely have a go at making them. Is the od the same as the cylinder bore and what should I be aiming for the id.
Cheers
John

 

[el gringo]

Thanks for those pictures on the ring making Ray.
I will definitely have a go at making them. Is the od the same as the cylinder bore and what should I be aiming for the id.
Cheers
John

Those I made the OD .001 larger than the bore and the ID .003 larger than the piston groove diameter ...The ring end gap when fitted squarely in the cyl needs to be adjusted to ~ .003.
Ray M

 

[Johno1958]

Thanking you

 

[el gringo]

Brian
How is the governor pawl affixed.... is it a pin, screw, whatever.
I noticed a .110 hole in the upper bracket ...what is the center-line location vertically in the bracket.
Ray M

 

[el gringo]

Brian
How is the governor pawl affixed.... is it a pin, screw, whatever.
I noticed a .110 hole in the upper bracket ...what is the center-line location in the bracket.
Ray M

 

[Brian Rupnow]

Hi Ray--I was wondering where you were. The governor pawl rotates on a 3/32" x 3/4" long steel pin that passes thru the pawl and is loctited into the 3/32" hole in "upper bracket-b". This is kind of a pig to assemble, as you have to pass the pin thru the pawl and into the bracket all in one go. There isn't enough clearance to let you do it any other way. It works, but it's a close thing.---Brian

 

[el gringo]

thanks Brian,
could you show me the dimensional location of the pawl pin hole in the upper bracket? The dwgs only show one center line?
Ray

 

[el gringo]

Hi Ray--I was wondering where you were. The governor pawl rotates on a 3/32" x 3/4" long steel pin that passes thru the pawl and is loctited into the 3/32" hole in "upper bracket-b". This is kind of a pig to assemble, as you have to pass the pin thru the pawl and into the bracket all in one go. There isn't enough clearance to let you do it any other way. It works, but it's a close thing.---Brian

what keeps the pawl in place longitudinally on the pin?
Ray M

 

[Brian Rupnow]

On the other end of the pawl, there is a 3/32" steel pin "Follower A" Loctited into the pawl. The other end of this pin slides into the 3/32" gap in the "Governor thimble A" The pawl can't slide off of the red pin because the pin in the other end "Follower A" can't slide out of the slot in thimble A.

 

[Brian Rupnow]

 

[el gringo]

Yes the pin hole centerline looks like .251 from the horizontal center of the upper bracket...where is it located on the vertical axis?
Ray

 

[Brian Rupnow]

Ray--Maybe I'm being a little slow here---There is a note beside the .094" dimension that says the hole is on the center of the plate thickness, and the hole goes all the way thru the plate. The hole actually breaks out into the hole for the socket head cap screw, but the pin itself is short enough that it stops just short of the capscrew hole.

 

[el gringo]

Thanks Brian...dummy missed the note.

 

[el gringo]

On the other end of the pawl, there is a 3/32" steel pin "Follower A" Loctited into the pawl. The other end of this pin slides into the 3/32" gap in the "Governor thimble A" The pawl can't slide off of the red pin because the pin in the other end "Follower A" can't slide out of the slot in thimble A.

My copy doesn't have any notes...

 

[el gringo]

My copy doesn't have any notes...

Could you also check the two mount holes for the upper bracket B...location, threaded or unthreaded ?
Ray M

 

[Brian Rupnow]

Ray--I just tried to send you two new drawings but the email address I have for you isn't working. Please send me an updated email address.---Brian

 

[el gringo]

Ray--I just tried to send you two new drawings but the email address I have for you isn't working. Please send me an updated email address.---Brian

will do.. e-address hasn't changed

 

[Brian Rupnow]

Ray--I had your address written down wrong. Had too many s's in it. got it fixed and sent you the two drawings.---Brian