valve seals

[scottmann27]

Well i got to work on my car over the weekend. It started smoking out the left side exhaust and I was thinking needed new seals where the car has sat for awhile. I was really pleased how clean engine was. Thinking it has to have been redone at some point in time. Its very clean for 107000 miles. needless to say it didn't fix my problem still smoking. My next guess is a piston ring. It runs great

 

[Bill Monk]

Well i got to work on my car over the weekend. It started smoking out the left side exhaust and I was thinking needed new seals where the car has sat for awhile. I was really pleased how clean engine was. Thinking it has to have been redone at some point in time. Its very clean for 107000 miles. needless to say it didn't fix my problem still smoking. My next guess is a piston ring. It runs great

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Seals will usually cause smoke after the car has been sitting when you first fire it up. On the rings, if you have a compression tester, you can pin down each cylinder or you run her on the interstate or highway, go down a hill with your foot off the throttle and at the bottom of the hill, punch it and check the rear view or better yet, have somebody follow you. If your rings are bad, when you hit the throttle after coming off the hill, the smoke will roll (how much of course depends on how bad they are).

 

[scottmann27]

I know it is cylinder 1. that was the only plug that had oil on it. I didn't check compression because when i took valve spring off the seal looked bad so I was thinking that was it. I drive about 70 miles a day and have been driving it more lately before it get to hot as it is not a a/c car. It has got worse i n the last few days. I guess it is time to but the 440 in it and put the original engine up because its matching numbers

 

[Bill Monk]

I know it is cylinder 1. that was the only plug that had oil on it. I didn't check compression because when i took valve spring off the seal looked bad so I was thinking that was it. I drive about 70 miles a day and have been driving it more lately before it get to hot as it is not a a/c car. It has got worse i n the last few days. I guess it is time to but the 440 in it and put the original engine up because its matching numbers

10.4 on the 440 but if you have a compresion tester, you can compare to the other cylinders. It would be good to know.

 

[PurpleBeeper]

Bill & Scottsman have good ideas. If your compression test comes up about even on each cylinder, then it might be a valve guide on #1 too. If it's low on compression on cylinder #1, you could just rebuild the heads and get another 50,000 miles out of it. If it's the rings, then you could "limp by" for a little longer with "motor honey" which will temporarily work & add "gummy junk" inside the engine (puddles in valley area low points near cam is where I've seen in collect). It's a poor-man's fix & will rinse out when/if you ever boil out that block.