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Messages - jeffescortlx

Pages: [1] 2 3 ... 15
1
Driveline / Re: actual driveline
« on: March 19, 2010, 11:23:32 pm »
How many of you guy's are running a 8" engine pulley?


And, how do we know RPM is a problem for a twisted belt set up? Why is it when the belts are parallel they can spin what ever RPM you can throw at it, but if you twist one of the pulley's 90º all of a sudden 3651 RPM's will cause it to exsplode?

2
Driveline / Re: actual driveline
« on: March 19, 2010, 05:16:52 pm »
Belt speed is not there if the motor doesn't go over 3650 rpm...

and decks run constant rpm not on the gas off the gas
Sure the motor pulley does'nt see any thing over 3650 rpm's, but having a 6" pulley drive a 3" pulley is over driven enough to say that the belt speed is quite high.
Deck speed is pretty constant once on, but it still needs to be engaged and disengaged.

3
Driveline / Re: actual driveline
« on: March 19, 2010, 05:07:59 pm »

Not even close in rpm....
What do you mean not even close? The deck pulley off the engine is quite large, and the blade pulley small. In fact, I'm very sure that the deck belt RPM is spinning just as fast (if not faster) as some of you guy's drive belt going to the tranny.

4
Driveline / Re: actual driveline
« on: March 19, 2010, 04:45:34 pm »
Twisted belt system simply won't hold up to the higher rpms of a racing mowchine, allow a slip clutch to work properly, and loses a good bit of hp in the twist...
I'd like to know more about this.
Why is RPM such a problem? I'm pretty sure I've seen factory lawn mower's use a twisted belt to drive the mower deck, and that see's just as high as RPM's as we do driving the wheels.
I know a slipper pullley clutch wont work, but a centrifugal clutch should.
And I'd be willing to bet that twisting a belt 90º will take a lot less power then a bevel gear set.

5
Post your Pics! / Re: soltra mower beginning to finish (well almost lol)
« on: August 07, 2009, 06:34:35 pm »
Looks like it should handle great!

6
Tecumseh Engines / Re: 20hp V-Twin stall's over hard bumps.
« on: August 07, 2009, 02:21:14 pm »
Just because a motor is modified, does'nt mean all rules of A/F ratio's are thrown out the window.

Quote
cant take much more feul than what its already getting.
If a motor continues to run good after a bunch of extra fuel in dumped in, then maybe that motor was lean to begin with?


This model of carb most have somthing different with it to make it do what it's doing.

7
Post your Pics! / Re: My bp Murray
« on: August 07, 2009, 02:13:54 pm »
Tshirt and shorts?  No gloves?  Sneakers?
I knew it would'nt take long for some one to point that out! lol

8
Post your Pics! / My bp Murray
« on: August 07, 2009, 01:59:45 pm »
No sleaves

No shorts

No service

9
Tecumseh Engines / Re: 20hp V-Twin stall's over hard bumps.
« on: August 07, 2009, 01:49:50 pm »
Because the bumps cause the float to go haywire, and floods the motor.
But every body has floats in there carbs, why does'nt every body have this problem?

10
Tecumseh Engines / Re: 20hp V-Twin stall's over hard bumps.
« on: August 07, 2009, 01:26:39 pm »
Yes but how does going over bumps change the A/F ratio?

11
Tecumseh Engines / Re: 20hp V-Twin stall's over hard bumps.
« on: August 07, 2009, 12:37:57 pm »
The stock ones do not use enough fuel to prevent the flodding that your experianceing on a rough track.
Elaborate please. I dont understand.

12
Briggs Flathead / Re: 18hp twin flat head- push rod problem.
« on: August 07, 2009, 12:24:35 pm »


Lifter must of been broken for a while, the stub cut it's way right into the lobe.
First time for every thing eh? Now you can say you've seen it done  :P

13
Tecumseh Engines / Re: 20hp V-Twin stall's over hard bumps.
« on: August 06, 2009, 05:26:51 pm »
Would'nt the 17.5 carb's be smaller?

The motor is stock, govenor and all (cant afford to buy a new one if I wreck it). And I'd happy with the power it makes.
Just wanted to see if there's any side effect to removing the solinoids (if that is the problem) I'm sure there is a reason for them being there.

14
Briggs Flathead / Re: 18hp twin flat head- push rod problem.
« on: August 06, 2009, 05:17:00 pm »
I still find it hard to belive that one lobe in the middle could be so worn that the push rod does'nt even make contact with the valve, yet the lobes on either side are just fine. If it had a oil pump I could see a clogged oil passage to that part of the cam to wear out much faster then the parts that are getting oil pressure, but this motor just uses a splash. Not too much can go wrong with that, if the little splasher finger is broke off I'd think I'd have a lot more problems then just one lobe.

I know I could be wrong, but I just cant picture it. Maybe I'll rip into it tonight and find out.

15
Tecumseh Engines / Re: 20hp V-Twin stall's over hard bumps.
« on: August 06, 2009, 04:00:06 pm »

This motor.

Runs perfect and strong as long as I dont hit any hard bumps. When I do it fall's on it's face for a second then catches it's self and takes off again.

Is there any side effects from removing the fuel shut off solinoide? Do I need to run a manual fuel shut off valve?

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