Sir Eddy's engine (2015)

Status
Not open for further replies.
it amazes me the work that still gets put into these bikes, I like and am still learning at the standard basic end, what you guys are doing is brilliant, please keep posting updates and results when you get to run it. can these runs be followed on any of the media sites etc. cheers Neil
 
mudplugger said:
it amazes me the work that still gets put into these bikes......., what you guys are doing is brilliant, please keep posting updates and results ......... cheers Neil
Click to expand...
+1 :mrgreen:
 
comnoz said:
lcrken said:
It's never easy when you're pushing the limits, is it? I had a Stellite pad come off a lifter once in a race engine, and it wasn't very pretty either. Years ago Ron Fraturelli had some lifters made, BSA style as I recall, by grinding them out of solid material. My memory says some sort of carbide (not sure which compound) but I could be wrong. Might have been out of Stellite. Don't know how well that worked out. One of the virtues of the Stellite alloy that Norton used is that it's compatible with the materials they used for cams. Might have wear problems with other choices.

Ken
Click to expand...

One good thing about it. We are not on the salt doing repairs....
Click to expand...

Tell me about it... looking forward to not having to do this again this year.


Sir Eddy's engine (2015)
 
Today I got the crank polished and the lower end parts measured and assembled. I replaced the drive side ball bearing with a Superblend to make engine assembly a bit easier. It had been assembled with a press fit ball bearing on both ends -not an easy slip fit like the normal ball bearing engines.

Here is the crank and rods.

Sir Eddy's engine (2015)


Sir Eddy's engine (2015)


Here is the hot cases with a new bearing in the drive side and the timing side set over the crank w/ ball bearing.

Sir Eddy's engine (2015)


Once used pistons.

Sir Eddy's engine (2015)


Assembled

Sir Eddy's engine (2015)


Sir Eddy's engine (2015)


I still have to resolve the valve spring retainer problem. Jim
 
Is that a Kiwi billet crankcase in the background? Maybe for a certain billet crankshaft?
Sir Eddy's engine (2015)
 
Snorton74 said:
Is that a Kiwi billet crankcase in the background? Maybe for a certain billet crankshaft?
Sir Eddy's engine (2015)
Click to expand...

Yes it is.
Sill waiting for a pair of SWANSON Ti rods. Paid for but not received.....
 
comnoz said:
Today I got the crank polished and the lower end parts measured and assembled. I replaced the drive side ball bearing with a Superblend to make engine assembly a bit easier. It had been assembled with a press fit ball bearing on both ends -not an easy slip fit like the normal ball bearing engines.

Here is the crank and rods.

%20assy%20005_zpsxhjtzeo8.jpg[/img][/url]

Assembled

Sir Eddy's engine (2015)


Sir Eddy's engine (2015)


I still have to resolve the valve spring retainer problem. Jim
Click to expand...

You are the Man! :D
 
Jim has been very busy correcting issues and reengineer the valve train. He had custom valve retainers made by KPMI as well as overnighting retainers due to the Yamaha ones that we fitted in the bike not being the correct fit, to go along with it he had to re-grove the valves to fit the new retainers. He informed me today that I made the mistake of reassembling the oil pump with the woodruff key in backwards so I messed up the gear surface on the intake side of the pump so I had to run out to Nutter Racing in Vancouver Wa. to get a new surface plate and oil seal and overnight to Jim.
Thank you Jim for all the effort!
You are the man!

Paul
 
It's looking better in mostly one piece.
I went ahead a got a new set of spiggoted lifters and ground them to the correct profile so I do not have to worry about loosing a Stelite.
It took two sets of valve collets shipped in before I got something that I would trust to stay together. KTM parts.
The ignition pickups are finished and the crank and cam are "degreed".
Just the oil pump is left.

Sir Eddy's engine (2015)


Sir Eddy's engine (2015)


Sir Eddy's engine (2015)
 
What a brilliant thread. I'm sure we all have our fingers crossed for you!

Forgive me if this is an old question, but what is with the stuff that looks like a wrap / covering in the rear barrel fins, and what is its purpose?
 
Fast Eddie said:
What a brilliant thread. I'm sure we all have our fingers crossed for you!

Forgive me if this is an old question, but what is with the stuff that looks like a wrap / covering in the rear barrel fins, and what is its purpose?
Click to expand...

The air enters at the front and the fins are designed to route cold air around the cylinders and exit at the back. The barrels and cylinders are one piece out of aluminum, no sleeved steel inserts.
 
Fast Eddie said:
What a brilliant thread. I'm sure we all have our fingers crossed for you!

Forgive me if this is an old question, but what is with the stuff that looks like a wrap / covering in the rear barrel fins, and what is its purpose?
Click to expand...

It is thin strips of metal between the fins that Sir Eddy designed into the barrels to improve the cooling by bringing air around to the rear of the barrels. Jim
 
Fast Eddie said:
An interesting concept chaps. What is the consensus on its effectivity ?
Click to expand...

Time will tell.
There is a lot of innovative engineering on this engine that is "out of the box" shall we say. Jim
 
comnoz said:
It's looking better in mostly one piece.
I went ahead a got a new set of spiggoted lifters and ground them to the correct profile so I do not have to worry about loosing a Stelite.
Click to expand...

Jim - Could you please clarify what a new set of spiggoted lifters are; stock or something else?
 
WZ507 said:
comnoz said:
It's looking better in mostly one piece.
I went ahead a got a new set of spiggoted lifters and ground them to the correct profile so I do not have to worry about loosing a Stelite.
Click to expand...

Jim - Could you please clarify what a new set of spiggoted lifters are; stock or something else?
Click to expand...

The new lifters from Andover are of an updated design.
The Stelite foot has a raised center that fits into the bottom of the lifter body and is brazed rather than just being brazed to the flat bottom of the body.
They are also 8 grams lighter.
You can tell if a lifter is of the spiggoted design by looking inside the lifter. You can see the weld where the Stelite joins the lifter body through the holes in the side. Jim
 
Next question Jim, What are the two screws for in the back of the crankcases below the barrels?
 
gripper said:
Next question Jim, What are the two screws for in the back of the crankcases below the barrels?
Click to expand...

They are just plugging holes. I am not sure what the original idea of those holes was. Jim
 
Status
Not open for further replies.
Back
Top