otis24's latest activity

UPDATE: 4 months/1000 miles ago, I did an oil change, added a bottle of Auto-Rx and replaced the PCV valve. There has been no...

If a vehicle has 150k miles on it, it looks good, and the car is still running well, then whatever the owner was doing worked...

I came to the conclusion that the valve guides were bad because he told us that a technician told him they were. Even if they weren't...

I had a chance to speak with my mechanic. He did do umbrella and O-ring seals. He stated that the valve guides were loose in the heads...

2005 or 2006. I purchased a new Dodge Grand Caravan in 2005. It was using .75 quarts of oil in 1200 miles. I began researching and...

I have had a 95 Caprice wagon since '13, bought with 82K and one owner. An EMS pilot I worked with was into B-bodies as well and bought...

90’s Buick Century Wagon. Probably a 3.8 front wheel drive.

No in 1991 Chevys still had o-ring seals. Unfortunately these guides aren’t machined for really nice umbrellas. The use of the umbrella...

I purchased the vehicle in about April 2015. The odometer broke in about April of 2016. I had put about 6k miles on it in a year. My...

So, before replacing the umbrella seals, the truck only smoked on start-up. Now it seems to be smoking all of the time. What about...

If I'm not mistaken the valve seals are the umbrella type. That's a cheap easy fix. But as Astro and benjy stated, if the guides are...

It’s worth a try to pull the valve covers and install the O-rings. Dont even have to disturb the umbrellas. Compress the spring with...

Only did umbrella seals.

if umbrella seals ONLY were used it won’t stop smoking and using oil. you need both umbrellas and o- ring seals.

I replaced the valve stem seals ony 1991 Chevrolet K1500; 4.3 V6. The mechanic stated that the valve guides are bad. I am no mechanic...