Carb Problem Solex 1barrel (Volvo AQ125A I-4)

[eyezaiah]

Volvo Penta AQ125A/270 volvo outdrive on a 83 Bayliner Capri Recently I found out that my gas gauge is a little misleading. Out on the water running fine until I ran out of gas had to get a tow back in. 1 week later I filled the tank (still empty from before) and took her back out to the lake. I usually give the throttle one push to WOT and back to neutral. Started right up like normal then died. Over and over I tried with the same result. I removed the flame arrestor to view the top of the carb to see if It was getting gas. when I push the throttle forward towards WOT I didn't see anything come out of the candy can looking deal (I think its called an Acc.something?) once I reached WOT with the I pushed it back to neutral and gas came out. This seems backwards to me. There is also another straight brass tube that sits over the opening of the carb. I don't know much about carbs. Any help will be appreciated. I'm looking for a good parts place to buy the rebuild kit from(once I save money for it due to the price of Volvo parts). Could this mean that the fuel pump is not working? Did it suck up something and clog the fuel travel path? from reading the posts a fuel/water sep. filter I need to buy and install since there isn't one at all. Is there a filter in the carb? I pulled the top of the carb off and looked inside at the float and bowl 3/4 full with gas float moved freely looked pretty clean inside.<br />Thank you in advance for your time.

 

[placebo]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

Eyezaiah, Welcome to the wonderful world of Solex. You are probably correct in assuming that some debris got into the carb. Problably got stirred up as you added fuel to the empty tank. You state that you don't know much about carbs but YOU can fix this one. There are some screens in the carb and passages that plug. Unhook the fuel line and remove the carb from the engine. Take it all apart and clean it using fresh gasoline and a soft bristle brush. Just go slow and pay attention to how it comes apart. Reassembly is the reverse(quote from cheap manual). Get yourself a filter/separator for the line. Your tank(metal ?????) is getting old and will probably continue to get worse.<br /><br />Don't worry, the Solex is pretty near bulletproof. And your boat will run better when you are done. <br /><br />Good Luck, David<br /><br />By the way, I have 3 of the damn things on my boat!

 

[Peter J Fraser]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

Eyezaiah,<br />When you clean out that carb DONT use a wire brush or similar to clean out the jet passages.<br />This may damage the brass jets and alter the fuel flow throught the jet.<br />Anything soft would be fine and plenty of compressed air if you are able and blow every thing out ofthe carb.<br />All the engine manufacturers supply gasoline filter kits with spin-on elements. These are the best if you can buy at a good price.<br />If possible mount your filter above the fuel tank level a few inches to prevent siphoning into the bilge when you service your filter or install a 1/4" npt needle valve tap on the inlet to the filter. At least then you can shut off the fuel before removing the element.<br />I'm like OLDVOLVO above with 3 of those carbs on my boat + 6 more for spares. They are very simple to clean and service. Your SELOC manual will give you enough help there.<br />Regards<br />Peter

 

[eyezaiah]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

Thank you for the knowledge and time. Yes I do have a metal tank. How do can you tell if the fuel pump is the problem? Are there any filters inside the carb or spring loaded setups that I should look out for when taking appart? Can you recommend a good brand for my application. Where could I get those types of brushes and or tools to clean? will I need to replace the gaskets or the accel. pump? since I was burning a bit rich before the problem, which direction leans out the mixture for the carb? Appologize for the thousand and one questions but I'm I bit worried about doing this myself and don't want to mess up things worse. thanks a mil.......<br />Fair winds following seas............

 

[Peter J Fraser]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

A stiff bristle paint brush will be ok for cleaning out the jets and passages in the carb body.<br />There are no filters in the carb but there is often a gauze screen in the fuel pump. However some pumps cant be dismantled for service. If it has 5 or 6 screws holding the pump together then you can dismantle the pump to check the valves are clear of any debris on the seats.<br />Get yourself a supply of carb cleaner or poss brake cleaner aerosols and preferably a commpressed air supply to blow out all the passages as well.<br />You should be able to get a good gas filter kit from your NAPA or Sierra store I think.<br />Unfortunately I'm in the wrong country here to help in sourcing those.<br />Have a look in a marine service shop and ID the filter package then go shopping around. I.Boats may have something available also. It's worth looking into. As to price? I'm not able to help there.<br />Look for a spin on filter element with water trap built in for best performance.<br />Look at Sierra filter kit part # 18-7852 or 18-7848 for prices.<br /><br />Regards<br /><br />Peter

 

[eyezaiah]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

Will I need a gasket kit or carb kit acc. pump or can I just pull it appart and clean it well and put it back together? Does anyone have a blown up diagram of this carb? Solex 44PAI Don't have a solex manual yet any information you could email me anything let me know. <br />Thanks.

 

[Peter J Fraser]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

I think sierra have carb kits (non genuine). You would be wise to replace any gaskets you disturb as they tend to go hard and will nearly always leak when you put it back together. Bad news on boats..<br />You wont need to remove the carb from the manifold just remove the screws that hold the Silencer and the screws to retain the whole carb top cover are exposed. Remove those screws and the carb is opened enough to work on.<br />The needle valve and seat is also used for a VW GOLF but not sure which model. If you buy a new Needle and Seat make sure the numbers on the side match and are the same. They are the size info.<br />I purchased a full Carby kit here for approx USD60.00 equivalent.<br />I dont have a manual here as my books are with my boat about 1,1/4 hours away at our beach home.<br />I dont have room in our driveway to bring my boat in home as it is too long and wide on the trailer to go around the corner off the drive and into my property so it sits in the garage at the beach. Good reason to keep going to the coast.<br /><br />Regards<br /><br />Peter

 

[eyezaiah]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

Thanks Peterf!!<br />Since this boat is new to me and I'm not sure what has been done to it. Would you recommend a full carb rebuild? the needle valve and seat? what is their function? should I replace the accl. pump also?

 

[Peter J Fraser]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

The needle & seat should come with the kit.<br />Its function is to control the flow of fuel into the bowl and shut it off when the fuel level reaches the correct level. <br />The Needle valve wears with time. When this occurs the fuel leaks past the valve and raises the fuel level in the bowl causing flooding.<br />Remove it from the Carb top cover and replace. You can't inspect the needle as it is supplied as an assembly and not as 2 separate parts.<br />If the accell pump is operating now you could leave well alone and just clean out the bowl and replace the N & S.<br />With the engine stopped, pull the pin out of the throttle cable where it attaches to the carb throttle lever and operate the throttle shaft by hand a couple of times. With the Air Intake Silencer off the top the carb you will see the fuel sprayed from the Accell Jet into the carb throat above the throttle plate. If you see a good fuel flow then the pump is working.<br />If you disturb the Accell Pump and its linkage you will need a manual to check that the linkage is set up correctly afterwards.<br />By my reckoning, Sierra Kit #18-7000 (or equivalent) is all you require to service your carby. <br />Regards<br />Peter

 

[Peter J Fraser]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

Eyezaiah.<br />This might be of some help to you. Posted by GENE70<br />

If you haven't found the Solex carburetors I have some in stock and keep the kits in stock also.<br />They are genuine Solex kits and are priced very reasonable. If you are interested you can e-mail me on call me 1-800-949-2189

Regards<br /> <br />Peter

 

[tommays]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

i allways drop parts were i can not get to them when i repiar things like a carb that should be rebuilt on a bench not the boat<br /><br />tommays

 

[Peter J Fraser]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

Tommays,<br />Your not supposed to do it that you know.<br />Rule of thumb says that, <br />smallest part will always find it's way to darkest corner as far away from you as possible.<br />Irrefutable law of small parts.<br />(but I know EXACTLY what you mean)<br /><br /> <br />Regards<br />Peter

 

[eyezaiah]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

I've been trying to call GENE70 for quite some time now (about a week). no answer. I have a question. <br />When you push the throttle forward with the flam arrestor off looking at the top of the carb what should I see take place? <br />When I do this I don't see anything happen (during forward movement) when I push the throttle all the way open. As I bring the handle back slowly from w.o.t. I see fuel come out of the candy cane shaped one (accel pump one???) Isn't that backwards??? Shouldn't I see the fuel come out when I push the throttle forward (open)what does this mean? What bugs me the most is that it was running fine before I ran out of gas.<br />Thank you!!

 

[Peter J Fraser]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

Ok,<br />From the throttle shaft at the base of the carby there is a small push rod link that goes back to a lever arm on the accel pump assy (square cover with 4 screws about 2" square) This is the accell pump, If you operate that lever manually then fuel will flow out of the jet into the carb throat. No fuel would prob mean that some gunk has got into the jet and it is blocked. You would need to decide whether you remove the carb from the engine to service on the bench or clean it in place.<br /><br />Best on the bench if only for the reason that you can invert the carby to work on it all round.<br /><br />Peter

 

[Ed Polguy]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

I rebuilt all four carbs on on my engines, had to get the re-build kits from VP they were $90.00 ea. It was a fairly simple job. compressed air<br />is a big help. Also , if you find that you need a new fuel pump, NAPA has a marine fuel pump that is<br />half the price of the VP pump.

 

[Rankbadyin]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

Eyezaiah<br />Recently rebuilt my Solex Carbs, they are really simple, and should pose no problem.<br />I usually take some digital pictures when I rebuid anything, helps a lot.<br />Got my rebuild kit from the attatched company.<br /> http://www.carbkits.com/ <br /><br />Davie

 

[eyezaiah]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

Thanks to all I Just got off the phone and ordered a rebuild kit. waiting for to get here so I can get started. I will keep you posted.<br />anything I should pay special attention to???

 

[Peter J Fraser]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

Just take careful note of how it all comes apart and you'll be OK.<br />As was previously posted they are a simple construction.<br /><br />Peter

 

[Peter J Fraser]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

EdsCabs<br />What price was your pump from NAPA? I would like to replace mine but Volvo here seem to want to clear their morgage in one hit on this.<br />Importing from the US is no trouble but I couldn't find a listing on their website and I dont have access to a catalog.<br />Your help would be appreciated.<br />Thanks <br />Peter

 

[Ed Polguy]

Re: Carb Problem Solex 1barrel (Volvo AQ125A I-4)

$38.00 American , the part # is m-60029<br /> Good Luck, Ed