Archive through September 11, 2012

[kide]

On the timing question... I read that all the K motors except the K341 AQS use a fixed 20 degree BTDC for the timing "fire" position. Has anyone ever measured/recorded what works out to be for the piston location in inches below a bare block deck on the compression upstroke? Where I've had that dimension on small engines, I've found timing marks to be off more than once..

On operating engine speed, I think Dennis and I had a discussion on that once in relation to lubrication. A plain shell bearing (or plain bearing without a shell like the K motor rods) relies on the shaft rotation inside of the bearing to carry/push a wall of oil that is the actual cushion between the shaft and the bearing. I think of it as the crest of the wave that a surfer rides. Too slow a rotation will not build that cushion. My dad used to like to run his little rider around at slow speed, but I was told that you should run small engines under load a far way above idle, although WOT isn't a necessity. I know I broke the crank on one hot Cushman lugging it down too far going up a hill - there was some evidence that the rod insert might have stuck on that one, although the crank broke on the rod throw...

 

[joligschlaeger]

Gerry, I hear you. I've used a PSM-6 meter, been a while tho, Air Force, early '60's.

 

[digger]

Today's load.
1450, 147, #1 tiller, Brinly toolbar, 12" Brinly plow, 2 decks and a box of extra stuff.

 

[vthomley]

Charlie, nice load! I was in the middle of no-wheresville Minnesota last weekend and I was still 2 plus hours east of you....

 

[mpatterson]

Lewis,
That #4 cart is THE BEST one I have seen yet! Nice score on it. Let me know the day you want to sell it - would love to have a 2nd one in my Cub Shed!

Charlie,
Another great load to say the least! Brinly tool bar eh? What ya going to do with that?
Any chance you have a picture of your Cub storage yard? I think I would be in AWE if I was to see it. My son's friend has something like 14 or 16 Cubs + attachments. He wants to sell them to get $$$ for his truck. I wish the wife would go shopping some day so I can take a tour back to see his collection!

But then I'd need a place to stash them if I bought some. Anyone have any extra shed space available?

Don T,
I like it "multi angle swing press".

 

[hydroharry]

Matt G - I may have over stepped myself since I've only ever seen static timing done, and had it explained but never actually done it. My thought was static timing involves a manual rotation of the engine and anytime you involve a manual element to a setting it can have some variation, i.e. are those points just broke open?, just a little more than just opened? etc.
I believe using a timing light is a more exact electronic method (no manual element). Assuming the timing marks on the flywheel are correct it should be an exact setting. Again, I'm no engineer, but think/work based on theory and logic. Help me out if you think I'm wrong here.

Gerry Ide Kide - nope not me. I never built a clock, and anyone asks me the time I usually say something like, it's about quarter till, or it's almost half past. Because time is continuous by the time I'd be able to say the exact time it would already be past that time, and I also wouldn't want state it prematurely since it could end by then

Now, where did you "read" about the K motors firing? And why would the K341AQS be any different than the others? Seems to me a K is a k is a K. Some are small (k) and some are big (K). I think they're all 20degrees BTDC (plus or minus the Kohler factory tolerance).

Vincent T - if you were in no-wheresville MN then I think Charlie was pretty close to you getting that load ready.

Charlie - that's a different trailer than before. Other one had alot more room for alot more CC stuff. Or did the trailer come with the load? And by the way, the only thing green in your pics are the trees. I don't even see any grass.

 

[lpalma]

Don T.

The cart an rims have the original paint on them.


Nice load Charlie.

 

[hydroharry]

Lewis P - the rims appear to have a "different" color paint from the cart. Also, the tires appear to be Goodyear Terra II. I don't recall seeing those on a No. 4 cart. Are you absolutely certain rims and tires are original to the cart? The rims appear to be the same white as the hood and wheels on your 1x7 tractor which might be IH902.

 

[lpalma]

Harry,
The underside of the cart is the same as the rims.The po bought this new and hardly used it and it shows it.Also the special duty equipment brochure I have shows terra tires with white caps covering the axle ends.Now all I need is a set of those...

 

[lpalma]

Harry,
Pictures for your query...