1998 Honda BACL 12cid - 8hp flush question

bluesrunner

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Hello . . . <br /><br />I have the above Honda engine that is installed in a well on a sailboat. It is going to be used in Salt water so I'll need to flush it, but can't use a rabbit ear type flush kit. What would the best way to keep this engine in clean condition?? THANK YOU!!!
 

hondon

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Re: 1998 Honda BACL 12cid - 8hp flush question

No easy answers here.There is no way to static flush this engine and "rabbit ears" do'nt even work with this unit.Ask around at the marina.These are pretty common kickers for that application and we would all like to know if there are some creative solutions out there.
 

bluesrunner

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Re: 1998 Honda BACL 12cid - 8hp flush question

THANKS for your input. Yes, I have been asking around and have yet to find a real answer. After looking at the parts manual, the best anser I can figure would be tapping into the water intake pipe, installing a valve with a hose connect, but am unsure about the real world ability of such a system, or how hard it would be to setup. Does anyone have any answers?
 

bluesrunner

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Re: 1998 Honda BACL 12cid - 8hp flush question

^ Still no other input folks?? I have three schools of thought flowing this way . . . 1) Good luck, really don't know! . . . 2) We leave them in all the time, check it once a year or so when tuning, and don't see real problems. . . . 3) I wouldn't use it in salt water if you can't flush it every time. Your going to have it turn into a hunk of corroded metal worth nothing/it will have all the cooling passages closed off with salt and it will be impossible or really hard to recover the engine!<br /> I have not been able to get an official Honda answer, just what it says in the manual, flush it after any use, salt or fresh. What one would expect any manual to say in this legal pitfall society. I have heard some say that Honda's are more prone to salt water corrosion . . . others say no. So, does anyone have the answers?? THANKS!!! Any ideas where else to look??
 

Nick on the Bad Habit

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Re: 1998 Honda BACL 12cid - 8hp flush question

Honda makes a small adapter thet fits onto the pickup tube under the anti cavition plate. It is made to allow the use of a garden hose to flush as you would do with rabbit ears. Caution, the adapter will interfer with the prop, so dont put the the motor in gear as damage will result.
 

Enrique Cornejo

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Re: 1998 Honda BACL 12cid - 8hp flush question

I have/had a Honda 8 hp and the best I found was a 5 gallons bucket in Home Depot for a few dollars. I do have a stand for the engine. Fill the bucket to the top, keep the garden hose inside the bucket and run the engine for 10 minutes in NEUTRAL!!!!!! Didn't help me with my Honda that had a BROKEN BLOCK due to a head bolt to tight when they put the engine together in Japan but....
 

TOHATSU GURU

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Re: 1998 Honda BACL 12cid - 8hp flush question

I had a customer that solved it by getting some kind a heavy canvas bag, tying some ropes to it, lowering it into the well, adding water, and running the engine at an idle. Sort of a feed/flush bag I guess. It must have worked because he has not come back in to buy a new engine.
 

Enrique Cornejo

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Re: 1998 Honda BACL 12cid - 8hp flush question

April Sails<br /><br />If you are going to use your Honda 8hp outboard in the ocean, the Honda manual is not enough. They recommend to flush the engine after each use in salt water for 10 minutes. They should mention also "with fresh water and SaltAway or white vinager to remove the salt" I bought my 8 hp Honda in 1991 and I followed the manual to the "t" and I finish with a cracked block and a head completly clogged with salt. When I removed the head, I found a yellowish substance clogging every passage in the head and part of the cylinders. There was no cooling at all in that area!!. The design of the engine does not help either. There is a black hose from one side of the engine to the other side that bypasses the head. Water was always coming out of the hose in the back of the engine, but after taking the engine apart, in reality the water pump was cooling the exhaust muffler!!! <br /><br />I think the manual should say. "if you are going to use the engine in salt water, take the head apart every 5 years and clean and remove the salt out of every crevice and passage" The other thing I found removing the head is that the water jacket around the cylinders is very narrow, in a way, promoting salt deposits. That means Honda design an outboard that is not good? No! It is a good engine.... that needs special care in salt water that is highly corrosive and the manual does not mention it. If you are going to remove the head, do it very carefully. There are 6 bolts and five are different sizes!!!! mark them. To put them back, use a torque wrench and pay attention to what you are doing. I rememeber the recommended torque is around 22 lb/feet. My mechanic recommended 19 lb/feet. If you make a mistake, say goodby to a block ( around $ 515.00)<br /><br />Good luck and pray a lot<br /><br /><br />Enrique
 

TOHATSU GURU

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Re: 1998 Honda BACL 12cid - 8hp flush question

Enrique,<br /><br />You have the singular distinction of being the only other person on this planet, beside myself, of ever recommending vinager. I salute you.
 

Enrique Cornejo

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Re: 1998 Honda BACL 12cid - 8hp flush question

Originally posted by INTERNETOUTBOARDS:<br /> Enrique,<br /><br />You have the singular distinction of being the only other person on this planet, beside myself, of ever recommending vinager. I salute you.
Aye, Aye Petty Officer 1st class Elvin!!<br /><br />Thanks<br /> ;) <br />Enrique
 

Al Kungel

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Re: 1998 Honda BACL 12cid - 8hp flush question

White vinegar. I didn't know that.<br />Straight vinegar? or mix it with water (proportions)?
 

TOHATSU GURU

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Re: 1998 Honda BACL 12cid - 8hp flush question

The stronger the better, but for maintenance you should be able to get away with a 1 to 3 ratio.
 

bluesrunner

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Re: 1998 Honda BACL 12cid - 8hp flush question

^ Thanks for the thoughts ! Due to the installation in the engine well, it is very hard to pull without much effort and time. Not something you want to do after a day on the water. That also eliminates the chance of using honda's flush adapter.Enrique, given this, would you use this engine in salt water?? I'm also curious, what chemical action does the white vineger work on. Vineger is acetic acid, but I'm not aware of a chemical interaction with salt, Sodium Chloride. Of course that does not mean it doesn't react, just that I don't understand it. I'm really begining to wonder if using this engine in salt water is a good idea given it can't be flushed with standard means. Thoughts?
 

45_red

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Re: 1998 Honda BACL 12cid - 8hp flush question

I suspect vinegar is effective because it etches(I.E.cleans) aluminum. Use it in prep for painting also.
 
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