QuestionThanks John
Briggs and stratton:
4kw generator 120/240V amps 33/16
8 HP
model- 190432
Type- 1907-01
Code- 81061611
This is an 'updraft' carburetor design (old?) and I finally figured out how to take the carb apart ( interesting tube that spans the two halves). I cleaned out the parts and it started running. Followup questions:
-for the (fuel mixture?) screw on the bottom of the carb and the (air mix?), what are the initial settings and how does one 'tune ' the engine from there. I started at 1.5 turns from full in: the top screw didnt seem to affect anything, but the bottom screw would decrease the rpm (sounded high at 1.5 turns) when turned in (tighter).
-I forgot to hookup the crankcase to air intake hose and it started dripping oil. when reconnected , (and im not sure this is the actual reason) I started getting a thick cloud of oil from the previously clean exhaust pipe. It went away in a few seconds (10-20) but then returned later. The cloud is instantaneous and thick, very white (oil?). I was concerned that this might be coming from somewhere else in the engine. It is probable that if coming from this crank breather hose, it is mixing with some fuel in the bottom of the air intake tube (see leak info below). Any procedure suggested here to isolate the cause?
-- the carb leaks gas, apparently from an overflowing bowl ( it leaks into the intake tube when the engine is shut off). It stops right away when I turn off the gas tube to the carb. I will probably take the carb apart again and disassemble the needle valve on the float (that could have some crud on it), or the float could be misadjusted or 'heavy' with fuel. When I was cleaning the carb, it looked like I could shut off the flow through the needle valve by inverting the float (while spraying carb cleaner in the intake hose. I did not take the float off, but should have to see if it had fluid in it. It is a copper type float. Do you have a procedure for setting the float level?
any other suggestions are welcome and appreciated.
best regards,
paul
Followup To
Question -
I got an older 4kw gas generator at a garage sale and think it should eventually run well event though it has sat (indoors) for years. The gas tank smells like shellac and I was planning to clean it out and run some carb cleaner through the carb. What would you suggest I do to rehab this engine?
-how to clean out the metal gas tank/
-what other things to clean? -Ill probably replace the plug.
-what to be careful of *not* to do.
thanks,
paul
Answer -
Hello Paul:
Send me the Make, Model, Type and Code Numbers Off of the Engine, Please. With these Numbers I can Locate a Breakdown of the Engine and Better Assist you. However, the Tank can be Cleaned with BB's and Compressed Air and Kerosene and Rags. Place the BB's into the Tank and Shake the Tank. Dump the BB's Out when you think the Inside is Clean Enough and Blow Out the Tank with Compressed Air. Now Pour about 1 Qt of Kerosene into the Tank and Shake. Then using the Rags and a Screwdriver, Wipe the Tank Dry and Remove the Rag. Then Blow Out the Tank with Compressed Air Again. It Takes a Little Time, but it will come Clean. Hope this Helps. I am here if you Require more Assistance. Thanks.
Good Luck
Respectfully
John
Answer Hello Paul:
Check the Crankcase Oil. From your Description of the Smoke it Sounds like there is Gas in the Crankcase Oil. The Flooding Carburator May have Flooded the Engine and Allowed Gas to Bypass the Rings. You can View a Breakdown/IPL of this Engine at this Addy http://shop.briggsandstratton.com/BShopProductListingPage.asp?rsvp=0&PARENTID=0& and Enter the Model Numbers 190432 and the Type Numbers 1907 and Click Search. Next Scroll Down to the 2nd Listing and Click on View PDF. This will Download a Breakdown/IPL of this Engine and Carburator. Be sure to Soak the Carburator Overnight in Cleaning Solution(Gunk carburator cleaner) and then Blow Out All the Passages with Compressed Air. Install Kit. Check the Float for a Pin Hole by Holding the Float Under Gas in a Small Container and Watch for Bubbles or the Float May Just Gain Weight. The Air Mixture Screw in the Bottom of the Carburator is Set to 1.5 Turns as you have Stated. The Low Air Mixture is Set the Same and then Adjusted so there is No Hesitation when Reving from Idle to Full Throttle. Then Set the Idle if Required. Clean the Crankcase Vent. It is Most likely Contaminated and needs to be Cleaned to Prevent it from Sticking. Spray Carburator Cleaner will do for this. The Float is Set Level with the Bowl Seat when Inverted. Hope this Helps. I am here if you Require more Assistance. Let me know what Happens, Please. Thanks.
Good Luck
Respectfully
John
