water injection

[albany dbd]

Just wondering if anyone is using water injection to keep down the carbon build up. ive been trying it but havent pulled the head off to see if its working.

[Halfnuts]

So, does the refrigerator light really go out when you close the door?     Sorry, couldn't resist.

Halfnuts

[akghound]

So, does the refrigerator light really go out when you close the door?     Sorry, couldn't resist.

Halfnuts

No, it actually stays in there. After all the door IS closed.

I was having problems with carbon when running WVO as a fuel. In an attempt to get around this I tried Water Injection and the carbon problem got worst. I did not try using water with diesel to "Clean UP' after the WVO, perhaps that would help.
Today I heat the injector line between the IP and injector when on WVO. So far this has eliminated or at least greatly reduced the carbon build up.
Ken Gardner

[hotater]

Ken--

You might investigate propane injection to control coking.  There's some information on uttepower.com about it.  I've heard it works wonders but haven't tried it yet.

[akghound]

Thanks for the propane suggestion. I'm attempting to stay away from "Buying" fuel as much as possible. This engine is run every day, some days it runs about 18 hrs (3-4 days a week). During subzero temperatures it runs 24/7, occasionally for several days at a time. Thusly, I try to keep fuel costs as low as possable. I wonder, would propane injection only during the Start up and Shut down times be enough to get rid of the carbon? I burn diesel during those times. Start up is usually about 15-30 minutes and Shut down is about 5-10 minutes.
Ken Gardner

[ceiii2000]

.

[hotater]

Ken--

Propane is usually just used once every week or so to 'clean the gunk' out.  A system could be designed pretty cheap to hook a one pound bottle up in the engine shed.   It don't take much!!

Check with Joel through utterpower.  He's got a lot of experience and used to make a kit (that saves several trips to town).

ceiii--  nah nah na na naaaa.   

[albany dbd]

well today i ran water again infact i ran the total of the cooling water i also ran the exhaust through a tube and shell heat xchanger. recovered twice the heat as just using cooling water and i also noted the rack would back off alittle. temp of cooling water ran 180.  i work with a bunch of industrial millwrights and they all remember water injection. more fuel eco. cleaner stacks. so its easy to poke fun bit im looking for a hard and fast reason why it shouldnt be done.

[solarguy]

What method of water injection do you use???

Finest regards,

troy

[hotater]

hmmmmm.  Wonder if taking combustion air from near the cooling tank would noticably improve performance?  More density and water content....

As a deputy sheriff many years ago, we rigged windshield wiper pumps to spray water on the exhaust manifold to keep the 429 Ford Police Interceptor engines from clogging with carbon while on town duty..... *Mine* never had that problem. They couldn't keep me in town long enough.    I found out quick NOT to spray the water while moving fast...INSTANT windshield fog!

[al riley]

in 1974 i ran a datsun 1600 pick up on alcohol (grain) had to run about 40% richer main jet  and also had a holley jet   with a 20 thousand hole  this sprayed from the top of the air filter into the  carb. the water was used to keep the valve seats in it as they were bronz in an alum head   the water was sprayed thru a solonoid.from a washer pump on a switch on the carb that only opened past 3/4 throttle. you dont need anything with alcohol as it burns verry clean. i ran that engine for ouer 44000 miles and still have the engine in the shop .the truck rusted to its death in 1981 and i bought a new datsun diesel sd22  5spd  my dad used to pour about a cup full of water  down the air intake of our hd6 twice a year for what i dont know but he said that it ran the carbon out of it. i had the engine out to rebuild it about 10 years ago and it still had some carbon in it but it was pretty sick when it was took apart.

[JohnF13]

I have a couple of propane injection kits here just waiting to be installed - as usual around here!  From the instructions, the propane is only used an hour every day or two, that is enough to get rid of the coking problem.  If I ever get them done, I will report back - but please, don't hold your breath - I don't want to be responsible for any untoward deaths!

John F.