YACT: Honda engines

huesmann

Diamond Member
Dec 7, 1999
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So, I'm sitting in my driveway installing the SVO/Borla side exhaust kit in my '98 Mustang GT, just drilling some holes in the side skirts for some hangers.

Some dude in a Honda hooptie rolls up on the street in front of my house. It's an Accord wagon, early '90s vintage it looks like. He's having some trouble...he's just rolled down the hill trying to roll-start it and now he's at the bottom of the hill. He gets out and asks me if I have any idea what's wrong with it, since he figures I'm working on my car so I must know something about cars.

I know Mustangs, but I don't know dick about Hondas. So I tell him to crank the engine, it cranks but doesn't fire. Towards the end of the crank it sounds a little like it's gonna catch but it doesn't. So I take a peek at all his fuses, they all look good. There's a little oil on the head, above where I assume the gasket to be. I pull the wires off whatever passes for a distributor on a 16V Honda motor, they look good. I pull the wires out of the spark plug wells, and at the ends are these rubber tubes which I think are supposed to be there, but they're covered in oil. This is something I don't expect. (I recall helping some neighbor kids change the plugs in their Honda a few years back and IIRC the plug boots were dry.) Am I wrong in thinking this is a Bad Thing? Any idea what might have caused this?

I'm thinking that the gasket might be bad or something, letting oil into the cylinder headspace and into the spark plugs, which I assume would prevent the plugs from firing. But that's just conjecture on my part since I'm totally not familiar with Hondas.
 

jagec

Lifer
Apr 30, 2004
24,442
6
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did you check the coolant to see if there was oil in it? (or the oil to see if there was coolant in it?) That's the usual quick-and-dirty test for a blown headgasket. It's also possible (though it would be strange) that the plugs aren't in there right. Maybe someone hand-tightened them, took a lunch break, and then thought they were in there securely?
 

huesmann

Diamond Member
Dec 7, 1999
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So I take it that my thought is correct, that there should not be any oil in the spark plug wells? I mean, this isn't a little oil, it splashed out when I pulled the plug wires.
 
Aug 23, 2000
15,509
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Sounds liek a blown head gasket if he is getting oil on the top part of the plugs. or is it in the cylinder? if in the cylinder it could be a head gasket or piston rings, but if it is in all the cylinders it's hard to believe he blew all those rings.
 

StageLeft

No Lifer
Sep 29, 2000
70,150
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Yeah there shouldn't be any oil in the cylinder wells where the plug goes into. What would be the point? No point unless something is broken :Q
 

toy4x4

Senior member
Jan 17, 2001
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Valve cover gasket.... (or someone doesn't know how to put oil in an engine)

Either way, there should not be oil all over the wires and this is why it does not run. He needs to clean them or replace them and it may start. He could have bigger problems though. Like he may not have oil in the engine anymore..
 

huesmann

Diamond Member
Dec 7, 1999
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Thought so. Why are Honda spark plugs hidden so deep in the cylinder head? On my Ford the're right there in the open. Is it because the Honda's a 4-valve per cylinder motor? Mine's only 2-valve.
 

huesmann

Diamond Member
Dec 7, 1999
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Originally posted by: toy4x4
Valve cover gasket.... (or someone doesn't know how to put oil in an engine)

Either way, there should not be oil all over the wires and this is why it does not run. He needs to clean them or replace them and it may start. He could have bigger problems though. Like he may not have oil in the engine anymore..
Well, I checked the dipstick (admittedly, not the most reliable method) and he was on the low side.
 
Aug 23, 2000
15,509
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My 02 nissan has really deep plugs too, it's because the plugs are dead center of the chamber, and since they are over head cams, the passage may to the plugs is long. I had to use 3 extensions on a ratchet to get a socket on the plugs.
 

CFster

Golden Member
Oct 16, 1999
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Valve cover gasket.

Replace the gasket, plug wires and clean or replace the plugs.
 

huesmann

Diamond Member
Dec 7, 1999
8,618
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76
Thanks, guys. The dude left his non-working car in front of my house last night. If he turns up again I'll tell him the deal is likely head or valve cover gasket. Or I could just leave a note on the car.