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2024-06-12; 11:12:56 EDT
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2002-08-01
Posts: 1422
Patrick, I’m sorry, I tend to skip obvious steps. Yes, you have to remove the throttle linkage and carb to get to the float bowl. Roger Pihlaja S/V Dynamic Equilibrium 1978. Sanford, MI Sent from my iPhoneSee the original archive post
> On Jun 12, 2024, at 11:04 AM, PBR <pbryanriley at gmail.com> wrote: > > Thanks Roger, > Can't access the float bowl screws without removing the carb but.It looks > like only two bolts to pull the carb off. So i will attempt to clean up > and unstick the needle next time I get back to boats in a couple of weeks. > Patrick > > >> On Thu, Jun 6, 2024 at 6:53 PM ROGER PIHLAJA <roger_pihlaja at msn.com> wrote: >> >> Patrick, >> >> Assuming the problem is a sticky needle &/or float, you can clean it out >> with minimal disassembly: >> >> Remove the float bowl and fuel line from the carburetor. Gently move the >> float. It should move several mm with little resistance. >> >> Spray carb cleaner into the fuel line inlet. You should see carb cleaner >> dripping out of the needle valve. >> >> Remove the float and needle valve. Be careful not to lose the needle >> valve seat seal. Inspect the male part of the needle valve. Clean off any >> residual deposits with carb cleaner. Spray carb cleaner up into the needle >> valve seat passage. You should see carb cleaner dripping out of the fuel >> line inlet. >> >> Reassemble the carb and reconnect the fuel line. >> >> Since you suspect the oil is fuel diluted, I recommend changing the oil. >> >> A compression test of 110 psi isn’t great. But, the engine should still >> run. >> >> Roger Pihlaja >> S/V Dynamic Equilibrium >> 1978. Sanford, MI >> >> Sent from my iPhone >> >>>> On Jun 6, 2024, at 1:06 PM, PBR <pbryanriley at gmail.com> wrote: >>> >>> Roger, et. al., >>> >>> Finally had a chance to troubleshoot this issue that began as oil >> dripping >>> from carb intake and smoking some. >>> I can't find any sign of a breather that might be clogged, everything >> under >>> the hood is pristine clean. >>> >>> Oil was definitely overfilled. I drained out about a pint and it still >>> shows nearly full. Golden color difficult to see but by rolling the >>> dipstick on a paper towel you could see the top level. What I drained >> out >>> also seems to have a viscosity lower than I would expect of pure oil and >> my >>> wife said it smelled of gas. So, stuck float is or was a most likely >>> culprit. >>> >>> I checked compression and got 110 psi on both cylinders. squirted in some >>> oil but could not get it to change. Seems low but could be my 40 year >> old >>> tester and me trying to get a good push seal. So, my rings are probably >>> not an issue. >>> >>> So, what next with a sticky float.? I don't want to take the carb apart >>> with my skill level and lack of a clean shop to work in. It may be fixed >>> already and I was just seeing the after effect of overfilled oil. I have >>> the motor on a dolly so I can tip it on it side, tap on stuff etc.. I >>> might just try to see if it runs OK before putting in clean oil in case >> it >>> is still stuck. >>> >>> Patrick >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>>> On Wed, Apr 3, 2024 at 8:48 AM ROGER PIHLAJA <roger_pihlaja at msn.com> >> wrote: >>>> >>>> Hi Patrick, >>>> >>>> I would check the oil level 1st. On a 2 cylinder engine, I would pull >>>> both spark plugs when checking the compression. That way, the starter >> will >>>> spin the engine faster and both cylinders will see the same test RPM. >>>> >>>> Roger Pihlaja >>>> S/V Dynamic Equilibrium >>>> 1978 Sanford, MI >>>> ________________________________ >>>> From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> on behalf of >> PBR >>>> <pbryanriley at gmail.com> >>>> Sent: Wednesday, April 3, 2024 8:36 AM >>>> To: The Rhodes 22 Email List <rhodes22-list at rhodes22.org> >>>> Subject: Re: [Rhodes22-list] Honda BF9.9 Oil from carb >>>> >>>> Thanks Roger, >>>> I will try all of these suggestions. I'll keep you all posted but it >> might >>>> take me a while to find the time. I do use just ethanol free gas and my >>>> modus operandi has been to run the gas out, but I admit during this time >>>> when I have been just starting and running the motor periodically I >>>> probably have skipped that a few times. I have a compression tester >> with >>>> the rubber insert. Came with a tune up kit I picked up about 35 years >> ago >>>> so probably american made and still working... To do this I am >> guessing I >>>> would hook up the battery and crank the motor while holding the tester >> in >>>> place? both plugs out or one in one out. (I seem to remember with 8 cyl >>>> engines my pals just did one at a time and started the engine). >>>> >>>> I do have an alternate motor ready to go on a Rhodes so if I get some >>>> sailing opportunities I have no excuses not to get out there. >>>> >>>> Patrick >>>> >>>> >>>> On Tue, Apr 2, 2024 at 11:24 PM ROGER PIHLAJA <roger_pihlaja at msn.com> >>>> wrote: >>>> >>>>> Hi Patrick, >>>>> >>>>> I’ve been thinking more about your issue with engine oil dripping out >> the >>>>> carburetor. Check the engine oil level with the dip stick. If the oil >>>>> level is high; then, you may have an issue with the float level in the >>>>> carburetor. High fuel level in the float bowl would allow fuel to >>>>> contaminate the engine oil. Eventually, the diluted engine oil level >>>> would >>>>> get high enough that oil would start backing up into the carburetor, >>>>> resulting in your observed carb oil drip. A sticky float would be >>>>> consistent with an engine that sits a lot between runs. I always >>>>> disconnect the fuel line and run the engine until the carburetor runs >>>> dry. >>>>> I think this explanation is more likely than stuck or worn piston >> rings. >>>>> >>>>> Roger Pihlaja >>>>> S/V Dynamic Equilibrium >>>>> 1978 Sanford, MI >>>>> Sent from my iPhone >>>>> >>>>>> On Apr 2, 2024, at 4:02 PM, ROGER PIHLAJA <Roger_Pihlaja at msn.com> >>>> wrote: >>>>>> >>>>>> Hi Patrick, >>>>>> >>>>>> I have a Honda BF9.9AXSA outboard motor, model year 2000. I use it on >>>>> my Walker Bay RIB. If you have a compression tester, you can quickly >>>>> determine the status of your piston rings and valves. The factory >>>>> compression spec is 156 +/- 14 psi when the engine is cold. If your >>>>> compression meets spec in both cylinders; then, your piston rings and >>>>> valves are OK. If the compression values are low; then, squirt some >>>> engine >>>>> oil into the spark plug hole on each cylinder and retest the >> compression. >>>>> If the compression improves; then, you have worn/stuck piston rings. >> If >>>>> the compression does not improve; then, you have valve leakage issues. >>>>> The only way to fix valve leakage is with a cylinder head rebuild. >>>>> However, since your engine still runs, if your problem is stuck piston >>>>> rings; then, you may be able to free them up. Drain out about ½ the >>>>> crankcase oil and refill with a product like Slick 50 Synthetic Oil >>>>> Treatment. Squirt some Slick 50 into each spark plug hole, gently >> crank >>>> it >>>>> over a few revs, and then let it sit overnight. The next day, start >> the >>>>> engine, and let it run at idle for 15-20 minutes. Then, shut it down >> and >>>>> change the oil. Hopefully, this will free up the piston rings. I >> don't >>>>> have much faith in any fuel additive's ability to free up stuck piston >>>>> rings. >>>>>> >>>>>> My M/Y 2000 engine has a crankcase vent that dumps directly to the >>>>> atmosphere via a rubber hose on the port side. The crankcase breather >>>>> cover sits just in front of the timing belt sprocket on the top of the >>>>> engine. I've never had my breather cover off because I've never needed >>>> to >>>>> get in there. However, given that it vents to the atmosphere, I doubt >>>>> there is any sort of PCV valve that might get stuck or clogged. >>>> However, I >>>>> suppose it's possible the vent port itself &/or the hose might be >>>> clogged. >>>>> So, it might be worth a look underneath the breather cover just to >> verify >>>>> that the plumbing is free and clear. >>>>>> >>>>>> Try these suggestions and let's see what happens. Good Luck! >>>>>> >>>>>> Roger Pihlaja >>>>>> S/V Dynamic Equilibrium >>>>>> 1978 Sanford, MI >>>>>> >>>>>> >>>>>> >>>>>> ________________________________ >>>>>> From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> on behalf of >>>>> Michael D. Weisner <mweisner at ebsmed.com> >>>>>> Sent: Tuesday, April 2, 2024 2:12 PM >>>>>> To: 'The Rhodes 22 Email List' <rhodes22-list at rhodes22.org> >>>>>> Subject: Re: [Rhodes22-list] Honda BF9.9 Oil from carb >>>>>> >>>>>> Patrick, >>>>>> >>>>>> I think that if you have a problem with "stuck" piston rings, you >> would >>>>> know it. I would suspect that there would be a loud noise and the >> engine >>>>> probably would not run at low speeds as it seized up. >>>>>> >>>>>> My guess is more a problem with the crankcase ventilation system. >>>>> Usually there is a PCV style one-way valve that sucks oil fumes out of >>>> the >>>>> crankcase, burning them by introducing into the air intake. Check the >> air >>>>> filter which is usually part of the recirculation circuit as it can >>>> become >>>>> saturated with oil. >>>>>> >>>>>> Is the engine consuming oil? Have you checked the oil level using the >>>>> dipstick? The smoke and excess oil can be the result of worn (not >> stuck) >>>>> piston rings or valves that are allowing the oil to pass into the >>>>> combustion path. >>>>>> >>>>>> Mike >>>>>> s/v Wind Lass ('91) >>>>>> Nissequogue River, NY >>>>>> I’d rather be sailing :~) >>>>>> >>>>>> -----Original Message----- >>>>>> From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> On Behalf Of >>>>> PBR >>>>>> Sent: Tuesday, April 2, 2024 1:52 PM >>>>>> To: rhodes22-list at rhodes22.org >>>>>> Subject: [Rhodes22-list] Honda BF9.9 Oil from carb >>>>>> >>>>>> Hello all. >>>>>> >>>>>> I have a Honda 9.9 2 cyl. that has been mostly sitting for a few >>>> years. >>>>>> It sat on the boat in Kitty Hawk (humid environment) for one winter >>>>> untouched (2018). Since then I have not used it on the water but >> always >>>>> expecting that I might anytime soon I did not winterize but dutifully >>>>> started it every couple of months throughout the winters and ran it a >> bit >>>>> with the water hose. Always started easy and ran good. Some smoke at >>>>> first but not enough to concern me. This time as I was about to put >> the >>>>> thing in to use I put a bucket (trash can ) around it and ran it again. >>>>>> Started easy , runs good, again some smoking, enough to get me curious >>>>> but not constant at all speeds. >>>>>> >>>>>> Looking under the cowling I see oil dripping from the carb intake >>>> (clean >>>>> golden oil). Still running fine.I am hoping there may be a *vent clog* >>>> or >>>>> something rather than just frozen rings. Any thoughts? *Stuck >> valve?* ( >>>>> but runs pretty good) >>>>>> >>>>>> This 1999 motor has VERY VERY low miles and looks brand new so I hate >>>> to >>>>> scrap it but given the date of manufacture the value is probably less >>>> than >>>>> a marine repair will charge me to take a look. Hoping for a miracle >>>>> solution. Twice I have removed mud dauber bee nests from under the >>>> cowling >>>>> so maybe I can find something suspicous. >>>>>> >>>>>> The trash can I ran it in did have some residual oil clinging to the >>>>> sides but I don't know how much might be normal. >>>>>> >>>>>> My plan next trip in a couple of weeks is to look for clogs and try >>>>> running again maybe with a high dose of sea foam or something. Not >> sure >>>> of >>>>> any miracle sauce that might help stuck rings. >>>>>> >>>>>> Patrick >>>>>> >>>>> >>>> >>
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