Harbor Freight V-Twin

[ol'George]

No expert here,
but thinking some copper tubing and a computer fan will net the heat of a match @ *40 below.
But what do I know?

[j4c11]

Originally Posted by ol'George

No expert here,
but thinking some copper tubing and a computer fan will net the heat of a match @ *40 below.
But what do I know?

You may be right, I don't know how well it would work. But I do know the muffler gets up to 400+ degrees, so there's heat there if you can harvest it.

[MWShaw]

Originally Posted by j4c11

Somewhat more on topic, we have quite a few people here that can fabricate things, I think an adapter kit for the predator engines would be lucrative business. The driveshaft may require length adjustments as well. So a kit could contain the flywheel adapter, driveshaft, mounting plate adapter and any PTO adaptations needed. Anyone willing to invest $550 in an engine and put it all together?

I could be wrong, but I believe whatever difference there is in the required drive shaft length, I can make up when I fab up the adapter?

Mounting plate, remanins to be seen?

I'm thinking of just drilling out the one that the M18 is sitting on now? That may require new belts for the mower and thrower, if the crankshaft center moves very much from the location of the M18.


It's the charging system that has me concerned. I looked at the specs for the predator, it does not call out amps. But I have heard that low output number, mentioned before?


http://manuals.harborfreight.com/man...1999/61614.pdf

[jimbob200521]

Originally Posted by j4c11

If I lived further north, I'd take some copper tubing and wrap it tightly around the muffler. Connect both ends of the copper tubing to heat resistant rubber hose and bring both ends of the hose into the cabin. Hook up a computer fan to one end , enjoy warm air out the other end. Sure the heat transfer wouldn't be terribly efficient, there may be losses along the way, but since you're recirculating it should warm up in 5-10 minutes. At least in theory

Do we have any HVAC experts in here

I know Roland is an HVAC expert, maybe he'll be along shortly to comment.

So you're saying wrap the muffler with copper tubing then hook up some rubber hose to each end and plumb it into the cab, that part I get. But my thought would be you'd have to fill the hose/copper tubing with some liquid that won't freeze, that part I can fill in the blanks on. But the part that keeps me wondering is what will make the heated liquid circulate? Either it will do it naturally through convection OR one could get a small pump (oh, idk; a drill pump perhaps) and hook it up in-line to circulate the liquid more efficiently. Thoughts on that? The other thing I wonder about is what do you hook both ends of the tubing up to? Would one get a small radiator and put it in the cab or what? Hmm lots to think about but it shouldn't be that complicated

[j4c11]

Originally Posted by jimbob200521

I know Roland is an HVAC expert, maybe he'll be along shortly to comment.

So you're saying wrap the muffler with copper tubing then hook up some rubber hose to each end and plumb it into the cab, that part I get. But my thought would be you'd have to fill the hose/copper tubing with some liquid that won't freeze

Nope, you just blow air through it using a small computer fan, or something else. The air travels through the tubing around the muffler where it gets heated up and comes out the other end, back into the cab, hopefully warmer. The more coils you get get around the muffler the better it would be. Since you're re-circulating the air in the cab it should in theory warm up in there.

Option 2: buy one of these guys, run your oil through it, put a fan behind it. Win-win, cool off the oil, warm up your cab.

http://www.summitracing.com/parts/de...FVORHwodazsDPA

[jimbob200521]

Originally Posted by j4c11

Nope, you just blow air through it using a small computer fan, or something else. The air travels through the tubing around the muffler where it gets heated up and comes out the other end, back into the cab, hopefully warmer. The more coils you get get around the muffler the better it would be. Since you're re-circulating the air in the cab it should in theory warm up in there.

Ok I get what you're saying now. My thought is fill it with antifreeze since that will transfer heat more efficiently than air would. Then put a small inline pump in to help circulate the water. Head online to find a cheap small radiator (see below, a quick search found a small radiator used for PC cooling, should be sufficient) to send the water through then hook up a 120mm fan behind it to blow the warm air. May not make you sweat but should help keep you warm.

Radiator:

http://www.amazon.com/Aluminum-Excha...small+radiator

Pump:

http://www.amazon.com/ZKSJ-Brushless...ECBTC1Z0JK46QM

[jimbob200521]

Originally Posted by j4c11

Nope, you just blow air through it using a small computer fan, or something else. The air travels through the tubing around the muffler where it gets heated up and comes out the other end, back into the cab, hopefully warmer. The more coils you get get around the muffler the better it would be. Since you're re-circulating the air in the cab it should in theory warm up in there.

Option 2: buy one of these guys, run your oil through it, put a fan behind it. Win-win, cool off the oil, warm up your cab.

http://www.summitracing.com/parts/de...FVORHwodazsDPA

I like that oil idea but then I'd need to find an adapter to go in-line between the filter and block to hook that up to. I'm also curious how well the oil pump would handle the extra "load" the 15 foot of hose would put on it. Then again, I'm not sure how I feel about having oil lines running all over the frame and cab

[j4c11]

Originally Posted by jimbob200521

Ok I get what you're saying now. My thought is fill it with antifreeze since that will transfer heat more efficiently than air would. Then put a small inline pump in to help circulate the water. Head online to find a cheap small radiator (see below, a quick search found a small radiator used for PC cooling, should be sufficient) to send the water through then hook up a 120mm fan behind it to blow the warm air. May not make you sweat but should help keep you warm.

That would work too, liquids are better at transferring heat. The downside is, you have to worry about leaks. Isn't antifreeze flammable? Maybe run something else through it.

Originally Posted by jimbob200521

I like that oil idea but then I'd need to find an adapter to go in-line between the filter and block to hook that up to. I'm also curious how well the oil pump would handle the extra "load" the 15 foot of hose would put on it. Then again, I'm not sure how I feel about having oil lines running all over the frame and cab

Definitely more risky with the the oil. But the point is, plenty of heat available, just have to find a good way to harvest it.

[j4c11]

Originally Posted by MWShaw

I could be wrong, but I believe whatever difference there is in the required drive shaft length, I can make up when I fab up the adapter?

Mounting plate, remanins to be seen?

I'm thinking of just drilling out the one that the M18 is sitting on now? That may require new belts for the mower and thrower, if the crankshaft center moves very much from the location of the M18.

Only way to find out is to pull the trigger and start tackling the setup.

[MWShaw]

Originally Posted by j4c11

Only way to find out is to pull the trigger and start tackling the setup.

Got side tracked;
http://www.onlycubcadets.net/forum/s...ad.php?t=41407