1991 Chevrolet K1500, 4.3 V6, approximately 130k miles. I've owned this truck for about 6 years. The seals have been bad since I got the truck. Finally decided to have them replaced. Compression was good in all cylinders (140-170). Valve guides are a little worn. Other than no more blue smoke and having to worry less about checking the oil, what benefits might I possibly see from replacing the very worn valve stem seals?
Replaced the valve stem seals.
- Thread starter otis24
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jagdriver727
Site Donor 2021
I think you've covered the benefits pretty well. The job still would have been well worth it to me, to be rid of the smoke and excess oil consumption.
Didn't pull the heads. Just used air to hold the valves up.
Don't know if it is in my head or real, but the truck seems to have a little more power and is more responsive to throttle input.
I would guess a 130k mile catalytic converter that has had blue smoke quantities of oil passing through, isn't doing much catalytic converting.
Would it be reasonable to assume that oil isn't leaking into the cylinders, the fuel is burning more efficiently producing more horse power and better fuel economy?
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