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View Full Version : local propane company said they would convert my scag for free


clyde
10-01-2012, 10:49 PM
anyone convert their engine ( mine is a 27hp kaw vert. liquid cooled ) to propane? What are the pro's and cons?

dhardin53
10-02-2012, 12:38 PM
Their are two way to convert to propane. Only one way will work. Typically simple conversion is to deliver a propane gas vapors from the tank to the carb, this has shown NOT to work.
What works good is to get a tank set up that will deliver liquid propane to the carb.
This set up is a little more expensive but when just using the vapor of propane you WILL have a freezing carb problem.

The facts are propane is 10% less BTUs than gasoline. Some say they can tell the power lose. In reality you just use about 10% more propane compared the the same as gasoline. The power is not much of a factor from what I have seen.

On the positive side it is much cleaner running, and much cheaper that gasoline.

clyde
10-02-2012, 06:37 PM
this guy is wanting to cut the air intake and spray into line , not from carb.

So in winter does it get worse as far as trying to crank if carb starts freezing. In know you would loose power if it freezes and if it dethaws won't you have issues as well with cranking .?

Scagguy
10-03-2012, 01:24 AM
If these people haven't done a bunch of conversions, I wouldn't be their experimental project. We don't run propane on anything....there's some upsides to running it but there's a few downsides as well. I'll stick to gas and diesel.

Duekster
10-03-2012, 01:58 AM
If these people haven't done a bunch of conversions, I wouldn't be their experimental project. We don't run propane on anything....there's some upsides to running it but there's a few downsides as well. I'll stick to gas and diesel.

I was told to work on them in Texas the Mechanic has to have a licenses from the Rail Road commission. The dealer just Pooh poo'd the whole concept of propane.

cgaengineer
10-03-2012, 05:46 AM
Power loss, unable to fillup at a gas station...I say no, not until propane is more widespread. If you run out of fuel on customers lawn you can just add a bit of fuel to finish, you have to change the tank.
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MOW PRO LAWN SERVICE
10-03-2012, 06:22 AM
INTERESTING POST.

I HAVE WONDERED BOUT THE PRO'S AND CON'S..opps cl

Ecotech
11-26-2012, 05:19 PM
Power loss, unable to fillup at a gas station...I say no, not until propane is more widespread. If you run out of fuel on customers lawn you can just add a bit of fuel to finish, you have to change the tank.
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Not sure if it is possible, but a conversion kit that was dual fuel would solve this issue. I know they have dual and tri-fuel adapters for generators, it would be interesting to see if one could be used.

Weekend cut easymoney
11-26-2012, 07:18 PM
Not sure if it is possible, but a conversion kit that was dual fuel would solve this issue. I know they have dual and tri-fuel adapters for generators, it would be interesting to see if one could be used.

Scag and i believe ferris make a gas and propane mower...very pricy.

It sucks when you run out and have to go to get propane because you didn't have time the day before.
Also, if on a large property and you run out, you have to lug the propane to the mower or drive truck close ...no small portable tank available....

corey4671
11-26-2012, 09:06 PM
I had the same thing about a year ago. Two local propane dealers called me wanting to convert my mowers for free. I cited the same reasons here. What happens when I run out? PLUS I had to sign a contract to buy my propane from this one dealer for the next two years....no thanks

Ecotech
11-27-2012, 10:14 AM
Scag and i believe ferris make a gas and propane mower...very pricy.

It sucks when you run out and have to go to get propane because you didn't have time the day before.
Also, if on a large property and you run out, you have to lug the propane to the mower or drive truck close ...no small portable tank available....

I actually have the Scag unit, it has been great so far and the tanks last a while. They are standard forklift propane tanks, which the propane companies up here have exchange programs for. It is nice having the gas backup on the mower though.

Kelly's Landscaping
12-25-2012, 01:07 AM
I would think if you were going to do this you would have a propane tank rack at you shop with 4-6 tanks per mower. So running out would not be an issue and the propane man would just come by your shop once a week perhaps once every 2 weeks and fill up your empty's.

But before id do this I want raw numbers these forklift tanks how much per refill? How many hours do they last on a mower? Whats the cost per hour vs cost per hour of gas or even diesel. If gas prices collapse again and hit 2 dollars is this still a good alternative?

clydebusa
12-25-2012, 09:20 AM
Couple of LCO's in the Tulsa area has gone to propane on their big ZTR and the word is they are saving money. Change oil less often and don't have issues with stolen fuel.

DR J
01-13-2013, 09:05 PM
Their are two way to convert to propane. Only one way will work. Typically simple conversion is to deliver a propane gas vapors from the tank to the carb, this has shown NOT to work.
What works good is to get a tank set up that will deliver liquid propane to the carb.
This set up is a little more expensive but when just using the vapor of propane you WILL have a freezing carb problem.

The facts are propane is 10% less BTUs than gasoline. Some say they can tell the power lose. In reality you just use about 10% more propane compared the the same as gasoline. The power is not much of a factor from what I have seen.

On the positive side it is much cleaner running, and much cheaper that gasoline.
May want to back up on the vapor tank! Thats all we use at my shop on the mowers. But must be the outdoor power tank made by worthington or manchester. Have more problems with liquid withdrawl tanks here with low temps and high humidity. It all ends up a vapor after the reducer anyway. Kohler even uses a vaporizer on their engines.

JCA1
06-30-2013, 08:19 PM
Don't let the lack of propane filling stations deter you, have the propane company provide you with a refill rack that they keep full, or get them to set up a re-filler at you shop. Also talk to them about tank cages that can be mounted to your trailers to carry refill tanks with you.