Strange mechanical theories?!?

Man you beat me to it...

And on the battery thing. Store them CLEAN. The dirt that usually covers the case can be (and usually is) conductive. If you are wondering how much just take your volt meter (on volts or ohms) and check between one of the posts and the dirty part of the case. Then clean the case real good and take the same reading. Dirt will slowly suck the life out of your battery just like the oil eating pygmies that apparently have resided in my oil pan in past years...

One thing about those oil eating pygmies, they dont like big pans.

 

I am not debating that drag is reduced, only that rpm at a certain speed with the same gear would remain constant regardless of wind resistance. The slippage of an automatic could account for a slight difference I suppose.

 

Yes, it's likely that the exhaust note changed, rather than the Rev's.

 

They are supposed to slowly walk around the piston, and hopefully all at the same rate.
I don't think the cross hatch is for that.
Ring movement is why most 2 cycle engines have a PIN to stop the ring from moving and getting the gap cought in a port.
I do stagger ring gaps and hope for the best. And have taken a few pistons out that I put together that had the gaps lined up.

Frank

 

if the engine does not have to produce as much power due to less drag, rpm will be lower. Horsepower is a function of RPM

 

Good point Frank. When I was 14 I got a cheap motorcycle. I couldn't afford new Kawasaki rings for it so my dad took the piston to work with him, cut the ring grooves larger and picked up a cheap set of rings for me. We put the engine back together and it ran great -- until one of the compression rings walked across one of the ports and broke. So back to the shop the piston went and it got pinned it again and a new ring.

 

The scientific method is: Hypothesis, repeated testing, theory from repeatable results.

So here is my theory: nuts, bolts, washers and sundry small items dissappear 18" from the ground and go into another parallel dimension. This leap across dimension and time can happen anywhere and at anytime, but manifests particularly often in proportion to time constraints, parts availability. For example I can drop my last grade 8 bolt on Sunday after the hardware store is closed and watch it dissappear silently at knee height. This phenomonon has been repeatedly proved by myself countless times with witnesses, and is marginally correlated with my collection of contents of various beer containers.

I offer the same proofs as electrical smoke theory.

 

How 'bout this:

You can clean out your sparkplugs by filling them up with gas and burning out the buildup.... Put them right back in and you're good to go...

This from a father of a family friend

dv

 

How can that be. Assuming NO SLIP, the crank is attached to the input of the transmission, which is atached to the driveshaft, which is attached to the pinion which turns a gear set. If the engine has to turn say 2500 rpm to go 60 MPH. That will not change due to resistance from an outside source.

 

You can have different RPM at the same MPH, easy. You can have different MPH for the same RPM - I see it all the time in our Kodiak C-70 delivery truck (Cat 3208 and AT). The engine is governed to a certain RPM which it WILL NOT go over for love or money. Start to pull a little grade, or buck a headwind, and the ol' girl will drop from 57-8 MPH down to 55 and the engine's still singing the same note.

A torque convertor will always have a little bit of slip - unless it's a lockup one.

An air deflector dropping the load on a wagon so much that the convertor slipped 300 rpm less? Must'a been a real loose convertor!

But, as not to completely derail the thread... here's a strange theory: fuel line magnets to give awesome MPG/performance.

-bill

 

if you want to talk about computers, here's an american firm for you ;-)

http://www.wussu.com/humour/gm.htm

As an apprentice I worked in a crane factory, all the cranes paint had codes instead of names, stuff like A1B or F6H I got sent to the stores for a tin of K9P

 

Had anyone checked the clearanc, between the pickup and the floor of the pan? If changing the pan,cured the problem, that could have been the "real problem".

 

Just to "nit pick"(in good fun),all of you discussing "batteries on cement floors". Those floors are "Concrete",cement is merely the binding agent used in the process of making "concrete"! My supervisor,when i worked at the LaFarge Cement plant,would go ballistic when FNGs, referred to the company as LaFarge Concrete.

 

YES

 

I'm glad someone posted this, thanks. Ya can't think rings just sit there waiting for gum/varnish to "stick" them in the ring grooves killing their efficiency in a short time. But, I already am engaged in some other silly shit on this very thread

 

The glide slope on a rock isn't much.

 

It's funny how many of these "wild mechanical theories" are actually believed by people on this board

I have seen stunt pilots do auto rotation demonstrations that looked plenty soft, but I'm sure that takes lots of practice.


RPM and speed are directly coupled +- the slip in the converter on an auto trans. This is possibly worth a couple hundred RPM.

 

I'm still looking for the water line I was told to get when I was in the Navy 1962..I spilled the bucket of steam..
Duane.

 

The sucking the oil pan dry problem can be solved with the addition of this baffle. I take PayPal.



Deep discounts if you pick one up and you're over 80 and accompanied by both parents.

 

LOL!



~Jason

 

Just say wow I had not idea

 

Can you post a photo of the installation tool for the
replacement smoke?

 

I worked on helicopter components (fuel controls) in Viet Nam. My first flight in a helicopter was a test flight, other than the copilot I was the only passenger. I don't know how high we were but the pilot shut down the engine in flight, we autorotated to a very soft landing, he fired it back up and off we went.

 

I have personal experience with it. The pilot shut down the engine in a test flight. We autorotated to a soft landing. We were dropping at a pretty good rate but just before touching down he (i assume) pulled pitch on the rotors and sat it down very gentle....

 

I'm glad you brought that up. This is a question I've had forever and nobody has ever answered it.

How do they paint the waterline around the boat/ship before they ever put it in the water? I understand the weight;displacement, all that, but the line isn't always parallel to anything. You can paint a level line around anything but that doesn't mean it's a waterline.

 

That red paint is made with lead, and being very heavy it pulls the boat down to its level. Everybody knows that!!

 

I knew I was going to make a fool of myself by asking that stupid question.

 

Worked for a caterpillar dealer, and I remember seeing them put bon ami in the intake of an old 3t or 17a, D7. These were built in the 30's, 40's. ( it worked). It actually showed the process in the service manual. They had cast rings and liners. with chrome rings, we just fired her off, got it warm, stalled the converter a few times to load the engine that was that.
OLY

The cancer car lives
Give to cancer research

 

When I had my machine shop I had an old timer that swore if you didn't get the cylinders round the ring gaps would all line up. He had me hone the blocks untill they were round, which took alot out of some of the blocks he didn't want to bore. Then I would knurl the pistons to take up the clearance. They always ran. Makes sense though if you have new rings in a cylinder out of round they could stop turning at the same spot.

The one I always liked was the guys who didnt want to do a valve job because the rings would start pumping oil.

Pans get pumped dry. One reason alot of circle track engines restrict oil to the top. Many hi-volume oil pumps come with a low psi spring too.