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Discussion Starter · #1 ·
My '87 E16 Sentra Coupe still cannot be started. In the last week I have changed the distributor cap, rotor, plugs and wires. When I try to start it, she just turns over but I can't get any RPM's to register but every so often. Finally today while I was making sure that I was actually getting spark, I noticed a pretty heavy amount of oil residue on the spark plugs(top and the threads). After consulting Haynes, they say that this is due to either worn valve guides or piston rings. I'm wondering how much this will cost me to correct this and what my options are. Is this reason for hard starting or hesitation? I'm still thinking that the injector is bad and there's a fuel system problem. ( $196 for the injector at Advance Auto) Any way to check the injector without the car running??? That's expensive to replace if it's not needed. I mean i'm getting spark, I assume it's gotta be the fuel. HELP.
 

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if u cleaned it off and put them back in, will it start, or better yet try new plugs? that and are they all equally as cruddy?
 

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Discussion Starter · #5 ·
Changed the plugs last week before the rotor, dist. cap and plug wires. The old ones had a little oil on them as well. Seems like there was more today and I can't get her to start at all. Fuel pump is good, changed the filter and verified good flow, just not sure about the why she won't start. The oil on the plugs is a just another one of my many problems. Maybe it's related I don't know enough about it. I"m just learning, but I"m getting frustrated as hell about it. Wish I knew more or really just what i'm doing :loser:
 

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it should still fire i cant see all the seals going at exactly the same time but its not impossible. if u cleaned them off and put them in nice and dry and it still doesnt fire then u know u have a problem because oil shouldnt leak that fast to stop a perfectly clean plug from firing at all
 

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Have may people had problems with there valve guides? My ga16i had really bad valve guides and, ultamatly, that's what distroyed my engine. So i'm looking to buy a new car, a nother pulsar but this one has a ca16de, and I guess it has had valve guides too. I just want to know how many people have this problem and how bad it is for you engine.
 

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its a lil rubber seal about a half inch tall and about a dime in diameter keeps the oil from passing your valves, think about how many times a valve goes up and down, even lubricated by oil they are gona get bad after 16 years
 

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Worn valve seals are indicated by smoking on warm up or as in my case, smokes if you get on it while it's still cold. The problem will only get worse eventually sending a steady stream of smoke out the tailpipe. But not till the valve guides are shot. Can't see just the valve seals as the problem. They don't have much to do with compression or spark. Have you done a compression test?
 
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