LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Bad Valve seals???

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Old Apr 3, 2006 | 11:05 AM
  #1  
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Bad Valve seals???

would bad valve seals make my car burn lots of oil. and would it make my car run lean......
Old Apr 3, 2006 | 11:07 AM
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Re: Bad Valve seals???

Yes they would make your car burn oil. I wouldn't know about lean so hopefully someone else will chime in on that.
Old Apr 3, 2006 | 12:12 PM
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Re: Bad Valve seals???

They "shouldn't" make the car run lean.

But bad O2's will. And if your oil seals have been leaking badly for a long enough time, buring all that extra oil could have helped carbon up the louvers on the O2's. So yes, it could, in the long run, indirectly, make it run lean.

99% of the time, when oil valve seals are bad, the engine will give a nice puff of blueish smoke when you first start it up. After the intitial start up, the exhaust should stop puffing blueish colored smoke.

If you change the oil valve seals, wait to do it until you put your hotcam kit in. No sense in changing the springs twice.
Old Apr 3, 2006 | 01:13 PM
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Re: Bad Valve seals???

lol well stupid me did it already and thought were in good shape but looks like i have to do the springs again
Old Apr 3, 2006 | 10:25 PM
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Re: Bad Valve seals???

Ehh, Could be worse. Be grateful that you know how to do your own work. And when you start to get pissed off, look at your wallet and smile at how much you just saved yourself. It does get irratating sometimes doing the same thing over and over and over only to have to do it again ...
Old Apr 4, 2006 | 10:47 AM
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Re: Bad Valve seals???

ok im going to order them from summit. can anyone link me to the right ones. stock valves. they have different numbered ones just not sure what ones for my car. thank you and is there a special way to put them on
Old Apr 4, 2006 | 01:00 PM
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Re: Bad Valve seals???

I dont know which seals you should get? I got replacement ones from a GM dealer. Once you remove the spring, you just pull up on the old seal (Sometimes their snug so have a pair of pliers)

Then push the new one down over the valve stem until it is seated.

Since you are going to have the spring off, I strongly reccomend having an air fitting in the spark plug hole on about 50 PSI to hold the valves up. You dont want to have to pull a head over a dropped valve. Or atleast have the motor on TDC for each cylinder.

Once you slide the new seal down on the valve stem, get a washer that slips over the valve stem, but touches the valve seal, push down on it smooth and evenly, but firm to make sure its seated all the way. Its actually kind of simple.
Old Apr 4, 2006 | 03:57 PM
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Re: Bad Valve seals???

Well Lol I Just Put The Roller Rocker And Lt4 Springs In It I Know How To Do It. I Used Pliers The First Time To Pull Them Off But Still I Thought They Were Alright And I Just Pushed Them Down So They Cant Go Down Anymore. Maybe I Messed Them Up With The Pliers On The Way Out
Old Apr 4, 2006 | 10:01 PM
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Re: Bad Valve seals???

If you didnt pull straight up on them, they could have maybe torn going over the groove in the valve stem for the locks? How many miles are on them?
Old Apr 5, 2006 | 02:13 PM
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Re: Bad Valve seals???

96k, I Have To Do Them To Make Me Know Thats Not My Burning Oil Problem. Never Burned Oil Untill I Did The Cam Swap
Old Apr 5, 2006 | 03:53 PM
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Re: Bad Valve seals???

Can you quantify how much oil you are burning?
Old Apr 6, 2006 | 02:55 PM
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Re: Bad Valve seals???

Between Me Getting On It Wot And Just Normal Driving I Think It Varys. From About A Week Of That Kind Of Driving I Would Say The Oil Line Is A **** Hair Below The Fill Mark
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