Gas in oil?
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Gas in oil? Hi I am new to forums and looking for some help.
I am looking at buying a 89 chevy s10 that has had a lt1 put in it. I love the truck but there is a few problems I need some insight on.
I was checking around on the truck and checked the oil and noticed it smelt like gas. After a few more minutes of looking around the owner came out and we were talking about the truck, and I completely forgot to ask him about the smell of gas in the oil. however he was telling me that the injectors have been changed to bigger injectors, but he doesn't know what size they are. He was also telling me that it runs pretty rich and he thinks its because the big injectors are with a stock tune/computer. So I would like to know probably causes of gas in the oil. would it be because the injectors are too big and the stock computer cant run the fuel right causing too much fuel to be injected making it run rich and overflowing the cylinders causing gas to get in the oil? Or could it be that fuel is getting passed rings and it needs rebuilt?
Any insight is helpful thank you
I am looking at buying a 89 chevy s10 that has had a lt1 put in it. I love the truck but there is a few problems I need some insight on.
I was checking around on the truck and checked the oil and noticed it smelt like gas. After a few more minutes of looking around the owner came out and we were talking about the truck, and I completely forgot to ask him about the smell of gas in the oil. however he was telling me that the injectors have been changed to bigger injectors, but he doesn't know what size they are. He was also telling me that it runs pretty rich and he thinks its because the big injectors are with a stock tune/computer. So I would like to know probably causes of gas in the oil. would it be because the injectors are too big and the stock computer cant run the fuel right causing too much fuel to be injected making it run rich and overflowing the cylinders causing gas to get in the oil? Or could it be that fuel is getting passed rings and it needs rebuilt?
Any insight is helpful thank you
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From: Emory Texas currently
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OP, the owner of the truck is telling you it has larger than stock injectors and PCM is not tuned for them and is running rich. That is why you smell gas in oil...which is not good.
If he has just run a few miles on it likely OK but if this has been going on with gas in oil not good. Gas washes down cyl walls causing ring scrape and also bearing wear.
If he has just run a few miles on it likely OK but if this has been going on with gas in oil not good. Gas washes down cyl walls causing ring scrape and also bearing wear.
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we don't know how long the owner drove it this way. It could be fine with either putting in the stock injectors or tuning for the larger ones. If the motor is otherwise stock (no cam or heads) it doesn't need larger injectors
you could check the oil for any "glitter" and if none do a compression test on a few cyl. If they check out on compression you should be OK
we are just reading what you say the owner says. If it has larger injectors and was tuned correctly than another reason it would run rich is exhaust leak pre-front 02. The pcm reads more air so commands more fuel so it will run rich
or the injectors are just leaking
you just need to dig deeper but on the surface larger injectors and no tune for them = rich condition and fuel entering oil by washing down cyl.
you could check the oil for any "glitter" and if none do a compression test on a few cyl. If they check out on compression you should be OK
we are just reading what you say the owner says. If it has larger injectors and was tuned correctly than another reason it would run rich is exhaust leak pre-front 02. The pcm reads more air so commands more fuel so it will run rich
or the injectors are just leaking
you just need to dig deeper but on the surface larger injectors and no tune for them = rich condition and fuel entering oil by washing down cyl.
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