Verical hit and miss engine

[LorenOtto]

God Speed Brian.

 

[Cogsy]

Good luck with you surgery Brian!

 

[Ghosty]

Good luck with you surgery Brian! I am sure you will be back soon with better vision

 

[minh-thanh]

Good luck with you surgery !

 

[Brian Rupnow]

The surgery went well this morning. I had a bigger pain in my arse from setting around waiting for three hours at the hospital than I had from the operation that took about 15 minutes. Everything is blurry in that eye right now, and I feel like I had something the size of a pea in my eye, but they tell me that is normal for the first 48 hours after surgery. After that I should be able to see like Steve Austin. I have an amazing list of things I can't do for the next two weeks, and then I get the other eye done, so it looks like I will be out of commission until mid August.

 

[Johno1958]

All my best Brian on a speedy recovery.

 

[Brian Rupnow]

I have worn single lens glasses from 40 to 50 years old. Then I had to go with bifocals from 50 to 60 years old. Then at 65 I had to go to trifocals with my "walking around" glasses, and get a second set of bifocals for computer and close up work. Today I feel a little bit like Mr. Magoo. However, if this surgery does all it is supposed to I plan on being called "Hawk-eye"!!!

 

[Brian Rupnow]

So--I'm 72 hours into this thing since the surgery. I've had no pain, and vision has cleared in that eye, a bit every day. It still isn't what I had hoped for, and a follow up appointment with the surgeon today left questions. The "super duper" ocular device which was surgically implanted in my left eye may not have been able to totally fix the astigmatism in that eye. Or--it may get better as it heals more. Or--due to the extent of the astigmatism, I may have to go in for laser surgery to smooth off the surface of the cornea. This left me disappointed, and prompted a call to the laser surgery people. "Oh yes, we can fix that in one easy step!!"--Sounds familiar. $2500 of my fine Canadian money for that quick little "step" with the laser people.--And--they won't do it until at least four months after the cataract surgery. Damn--I wasn't expecting this. Big hope is that with more time for the eye to heal it will clear up better without having anything else done to it.

 

[CFLBob]

For some reason, the forum didn't update me on this thread until today, so this is all news to me. I knew you were going to have surgery, just not that you just did! Glad it apparently worked out with no major problems, just not as great as you hoped for. Yet.

Unfortunately, I don't have even the least bit of knowledge that might be useful to you!

 

[werowance]

best of luck Brian.

 

[el gringo]

So--I'm 72 hours into this thing since the surgery. I've had no pain, and vision has cleared in that eye, a bit every day. It still isn't what I had hoped for, and a follow up appointment with the surgeon today left questions. The "super duper" ocular device which was surgically implanted in my left eye may not have been able to totally fix the astigmatism in that eye. Or--it may get better as it heals more. Or--due to the extent of the astigmatism, I may have to go in for laser surgery to smooth off the surface of the cornea. This left me disappointed, and prompted a call to the laser surgery people. "Oh yes, we can fix that in one easy step!!"--Sounds familiar. $2500 of my fine Canadian money for that quick little "step" with the laser people.--And--they won't do it until at least four months after the cataract surgery. Damn--I wasn't expecting this. Big hope is that with more time for the eye to heal it will clear up better without having anything else done to it.

Damn! I thought medical care was free in Canada?
Ray Monahan

 

[Brian Rupnow]

Ray--It mostly is. Operations, disease curing, a lot of the heavy duty stuff is free. Some things which are judged to be "cosmetic" in nature are not. Government won't pay for laser surgery, but they will kick in some of the cost of glasses.

 

[el gringo]

Yeah, only the gov could classify vision improvement as 'cosmetic'

 

[Brian Rupnow]

I can't see well---But I can see well enough. One eye is fixed. This coming Monday other eye will be "fixed". Then I get to wait for a month to get proper glasses. I was so bored that I decided to do a little machining, and this is the result. I have machined both parts of a two part rocker arm. Eventually, they will get silver soldered together to make a single rocker arm. This is a case of "form follows function". Originally that 1/2" diameter cam follower was 3/8" diameter, but I had interference issues between the "rise" on the cam and the underside of the rocker arm. All is well now, so I will go back and change my drawings "to suit".

 

[CFLBob]

Good to hear you're getting better. Is it something that magnification helps, like an Optivisor, or is it just blurry? Poor correction? I guess.

 

[Brian Rupnow]

My old glasses no longer work for the eye that has had surgery. So yes, anything close up like reading a book is blurry. Reading with the one remaining unoperated eye gives me a headache. Four weeks after having the second eye operated on, I will get new prescription glasses.

 

[JohnBDownunder]

For what it's worth Brian, when I had my cataracts done Dr said to just get some Dollar shop reader glasses to help until I could get new prescription specs. I did as suggested and found it useful as a cheap interim measure.
John B

 

[Brian Rupnow]

Thanks JohnBDownunder. I have been told the same thing by my doctor.--Brian

 

[Brian Rupnow]

Today is the last day for me to play in my machine shop. I go in for my second eye surgery tomorrow, so won't be able to do much for the next week or so, except fumble around like Mr. Magoo. Something I did do this past week was to make the two part rocker arm and assemble it, and get the complete gear train and face cam and rocker arm finished. This has worked out very well, and I am pleased with it. The face cam is one which I used previously on a horizontal hit and miss engine, so I know it works. Enjoy the video.---Brian

 

[Brian Rupnow]

Whenever I have two pieces that must be silver soldered together and must also hold a very close angular relationship, it calls for either a welding jig to hold the two pieces together in the correct relationship, or to scribe a line on the two parts while "in place" and then match up the center holes and scribe marks in a holding vice. I chose the second of these two options, which is the less accurate method. I got lucky. With everything reassembled as in the previous video when the cam follower is not "up" on the cam, I have room to slip a 0.004" feeler gauge between the end of the valve stem and the round part of the rocker arm which sets directly above it. There must always be an air gap there when the cam follower is not "up" on the cam, because if there isn't the exhaust valve will never seal tightly to hold compression.