fuel in oil

[82ndhalo]

question for all i am new member is ther eny one out ther that can tell me how fule can get in the oil.
i have a 1989 yj 4.2 l idils real high and if i miss getting it started the ferst time it floods out then i have to take breather off and stick something in the chock fore it to stay open then it startes auto dransmition.

 

[LVRockCrawler]

i had that problem with an old 440 chrysler - if it floods often, the fuel can (and probably will on an older engine) get past the rings and into the oil - i discovered this while removing the distributor on the old 440 (with the ignition charged - BAD thing, BIG boom! and i'm still alive thanks to a 3/8" steel fuel line over the dist. base that stopped it from launching at my face like a morter round - blew off the valve covers and valley pan under the intake - in other words... if you have fuel in the oil - BE CAREFUL WITH ANY IGNITION COMPONENTS if youre working on it...) get that flooding problem fixed and you'll probably find the fuel in oil problem will go away also.... hope it helps.... and welcome aboard! you'll like it here!

 

[82ndhalo]

thanks for the reply.yesterday I put on a new tfi juice box to try and compansate for the flooding problem it seemed to help, but not fix. when I timed it, it was about nine degrees bftdc. I pla on putting on a new k55138 carburator because the carter remanufactured carb only gives me trouble. The only modifacation I've done are small and the rest of it is stock. Do you think if I continue to run the jeep with this problem it will damage the engine. I changed the oil 3 weeks ago and it seems to run o.k. just that it floods out and there is not alot of pick up. As soon as I get the cash I will be replacing the carb. Thanks again.

 

[LVRockCrawler]

i'm no expert but i dont think the small amount of fuel getting in the oil will damage anything and probably evaporates out when warmed up - the timing was the issue w/the old 440 in my prev. post - thats why it wouldnt start and flooded - check your timing gear (pull the distributor cap, use a wrench on the main pully bolt to turn the crank a little each direction while watching the rotor - see how much slack is in the timing train - the rotor should turn back and forth w/the crankshaft - if not, you may have too much slack and the timing will fluctuate accordingly) - otherwise just try not to flood it out (easy to say!) and just be careful... your post gave me bad flashbacks of lost eyebrows and flashburns on fingers! hehe!!!

 

[TwistedCU]

Get yourself a Motorcraft 2100 or 2150 to clear up the carb problems. the stock carb is not worth it's weight in cow sh..

Change that oil ASAP too.

 

[Sparky-Watts]

I always thought that gas will tend to break down oil pretty quickly, taking away it's viscosity. I don't know if it's true, or how much it would take to do it if it is.

Oh, and welcome to Jeepz, and good luck on your flooding problem!!