honda305.com Forum

Now for the rest of the story!

I got the knock pins replaced, replaced the head, lost the cam chain down the inside of the engine, and spent a wonderful hour retrieving it, getting the indexes to line up and then torquing the head down. It torqued easier and differently than it did originally (that should have been a clue that something was off), and all the cap nuts sit at 21 foot pounds. I put new nuts on the short studs by the plug holes (I used them to pull the head down so I could get that cam chain installed, and beat up the old nuts). Then, I had a marvelous time getting the engine back on the that built up frame. What made it such a memorable experience is that I don't own a floor jack. However, the neighbors learned no new words, but I failed my father by not throwing tools when I got frustrated, a method that always seemed to cure whatever was wrong when he was working on something. I did get paw prints all over my shiny engine and frame, but as Ed told me - "soap and water, it'll clean up".

I just hope I don't have to go through that again.

I hope to get back on the path of starting her up on Monday.

How long were the pins? The best way to install the cam chain is to fish it up with a wire through the bottom with the oil pump out. I never fight the chain while installing cylinder or head.

Good luck,
Tim

Tim Miller wrote:How long were the pins? The best way to install the cam chain is to fish it up with a wire through the bottom with the oil pump out. I never fight the chain while installing cylinder or head.

Good luck,
Tim

Tim, thanks! I didn't measure the knock pins. I simply trimmed them down and reinstalled them. And, we think alike, that was exactly how I reinstalled the cam chain. Tedious, but the job got done!

Good job!!

Just for reference - here is my little tool for getting out corroded and squashed knock pins (us old-country folk call them dowels).....

I just bought, as a job lot, 3 CB72 motors in pieces. Had to remove a number knock pins before bead blasting..

G

Graham, that's an elegant, simple tool! Brilliant.

Because I am a girl (wait, let me check - yes, I'm still a girl :) ), I could not take shop in high school (in the 1960's), and even though I could have, I did not take a metal working class in college. I wish I had - being able to machine helpful little bits as you can do would have been fun, and rewarding.

By the way, I'm given to calling them dowels, too, although I usually think of dowels as wooden. Either/or, right?

Cheers, Graham!

Sara

I suppose dowels are probably solid rather than hollow, normally but, yes, certainly the wooden stuff is always called dowel in the UK.

My little Myford lathe is the best thing I ever bought. They were made for schools and colleges and the factory used to be in Nottingham, about 15 miles from my home. I bought mine in a sale from my old employer, British Rail Research. I now spend more time making little tools and much less time on the actual job they are made for. It can be a bit anticlimactic when a fiddly job that could take ages and result in broken or damaged parts can be done in a couple of minutes when you have the right tool or fixture. Less remedial work to do, also.

I never got to do metal work at school - we were only taught woodwork. Bikes, farm work and a Mechanical Engineering degree were my craft education. We even got to make patterns and do iron casting - exciting stuff. Health and Safety legislation has probably killed all that now.

This is an excellent book if you have the time.... http://www.matthewbcrawford.com

I am flying out on Wednesday so drop me a PM with your address and I'll mail those screws to you.

Like everyone else, I am eager to see your SuperHawk running soon!

Take Care

G

G-Man wrote:Sara

I suppose dowels are probably solid rather than hollow, normally but, yes, certainly the wooden stuff is always called dowel in the UK.

My little Myford lathe is the best thing I ever bought. They were made for schools and colleges and the factory used to be in Nottingham, about 15 miles from my home. I bought mine in a sale from my old employer, British Rail Research. I now spend more time making little tools and much less time on the actual job they are made for. It can be a bit anticlimactic when a fiddly job that could take ages and result in broken or damaged parts can be done in a couple of minutes when you have the right tool or fixture. Less remedial work to do, also.

I never got to do metal work at school - we were only taught woodwork. Bikes, farm work and a Mechanical Engineering degree were my craft education. We even got to make patterns and do iron casting - exciting stuff. Health and Safety legislation has probably killed all that now.

This is an excellent book if you have the time.... http://www.matthewbcrawford.com

I am flying out on Wednesday so drop me a PM with your address and I'll mail those screws to you.

Like everyone else, I am eager to see your SuperHawk running soon!

Take Care

G

Thank you, Graham!