my 8hp (190707) smokes blue/white smoke when go from slow to fast and when i hit bumps, could this be a head gasket or somthin else,, thanks

Check the oil level, too much oil in engine.

check what tommy says first, drain some out and check the manufacturers recommended type of oil and how much should be in there... then check the gas/air mixture on the carb.

Oil capacity is 36 ounces, aproximately 1 1/8 quarts of sae 30w oil.

did the oil thing work roper?

well i had to much oil in before i changed it, so all i did was change the oil and its the proper amount, but the needle in the bowl (adjustment)had a grove from the tip upwards to the thread part , and so does where it seats, could this be the problem
thanks

:thumbsup: mite just be, maybe get a new one and see what happens :thumbsup:

alright then i get a kit, i also need a helicoil insert and head gasket, anyways thanks

I do believe if it were a carb problem you would be seeing a lot of black smoke and not the blue/white smoke. That said if you have a needle and seat with a groove in them I would recommend you change them while you are working on this engine.

i do believe that the needle and seat kit comes with the carb kit so i will be puttin a new one in or if it dosen't i will be puttin one in, could the needle and seat be the blue smoke problem, because its not goin down on oil,, thanks

make sure there is one in the kit! some dont include certain things at certain prices, or just buy the item separately n stuff

alright,, ill make sure i check before i buy, thanks

alright got the carb kit in but i still dont have a new head gasket, would a bad head gasket make it smoke under really heavy load????,, thanks

not really.... head gaskets are to help compression... and smoking under load... maybe your overloading it too much

alright then,, i only have the engine in because i got my 12hp i/c out putting a new set of rings in it, thanks

well good luck =-) and forgot to add in my b4 post, check the head gasket, if its not torn up or melted to the head/cylinder its usuably, wipe off ALL dirt and grime, if its on top / bottom of gaskets it could cause uneven head top when screwing on, resulting in losing compression

i guess i'll put a head gasket on it because when i removed the head a week or so ago (that was when i broke the head bolt off), so im just gonna buy a head gasket and a helicoil insert so its alback together properly and finish rebuilding my 12hp i/c :thumbsup: ,, thanks

:thumpbsup: good luck trying it!!! :dude: :p
just wondering.. does your tractor use a horizontal or vertical shaft engine

190707 vertical shaft :rolleyes:

it is a vertical shaft, but i posted the wrong model number, its a 191707

=) gonna research that engine ! =P

heres all the numbers if it will help with wht u doin, model: 191707, type: 5627-01, code: 79083009, thats whts on the engine.

thanks! i think i found one on e bay :) :rolleyes:

make sure its synchro balanced, i have 2 8hp engines and one is synchro balanced and the others not, believe me the 8hp synchro balanced is the way to go :thumbsup:

never heard of dat... what happens if not balanced? thanks

if its not balanced it will vibrate quite abit, the tractor i got the non balanced motor from had rubber motor mounts and i couldn't figure out wy until i put the motor in my tractor without motor mounts and it viberated like crazy, i even thought my crank was bent becaseu of the vibration but it was becasue it wasn't balanced, this was my post>> http://www.hobbytalk.com/bbs1/showthread.php?t=146009

thanks for the info! solved one of my engine probs on my tractor engine1

could the crankcase breather be my blue smoke problem? should the tube from the crankcase breather to the carb be dry, thanks

i dunno. but my 3 hp's and 2 hp's briggs breather is dry... and they smell like gasoline not oil ? ??? weird... still dont really get what breathers are used for

T dunno what the breather is used for either, but i changed it and it doesn't smoke nowhere near as much as it did. The tube from the breather to the carb had oil in it,, thanks

ya solved your own problem =)

I got the idea from the B&S site, it also says on the B&S site about a blown head gasket and my head gasket had a crease in it when i put it back on, so thats what im goin to replace next becasue it still smokes alittle under load. thanks

it should smoke some around the head too if head gasket's like dat

alright then,, gettin the head gasket soon

i found some on e bay ill list soon .

well there you go , you are asking an 8hp to the job of a 12 horse :rolleyes:

the breather vents the crankcase gases and yes they do need to be hooked up because the air being drawn into the carb also draws the gases out of the crankcase

thanks for the info jay! thats a first to me. just wondering, cant a 8hp do a 12hps job?

theres a noticable diference between a 12hp i/c and a 8hp, the tractor came with the 8hp but i put the 12hp in it till i found out that it smoked alittle

smoked.. under load?

yes but it also had other problems,, read this and then u will know why im rebuilding it>>> http://www.hobbytalk.com/bbs1/showthread.php?t=153849

nice. alot of help eh :p! gonna see if i can get chrome rings! good luck on the engine roper! :dude: :thumbsup:

i would put chrome rings in my 12hp but i want to hone it becasue of the rust that was there to make sure its all gone :thumbsup:

well good luck! taday im gonna go ta e bay and look at prices for honing machines =)

well got the blue smoke problem solved,, it was over filled just alittle in oil... now it smokes black under load,, will the carb kit i ordered fix this? thanks

no my engine smokes black under load. i posted a thread about it. got a quick answer. the carb is too rich =) try leaning it a little

alright,, i take it that its the highspeed jet in the fuel bowl your talking about,, the needle is in pritty rough shape so i'll adjust it as good as i can for now, thanks

yes, make sure its stil lgood if its bad maybe buy another one, or try to fix it =) good luck! ]


PS how well does it run now?

ya i found a good high speed needle and tried it adn it worked alot better, the seat has alittle grove in it too so when i get the carb kit it should be good to go,, thanks

just wondering, what website do u get the 8 hp chrome rings from> ?tahns