Re: misfire problem
carjunkie05 wrote:
> mike i checked my compression and i am loseing my pressure though the > head gasket i already had the head checked for flatness so i must have > a faulty headgasket. i�m gunna get another one on tomarrow and see how > things go from there thanks a bunch what makes you sure it's the gasket? burnt valves give gasket-like compression symptoms, but no leakage into the coolant. cracked heads/blocks give gasket-like symptoms, so much so that they're indistinguishable without detailed crack detection. there comes a point where it's uneconomic to repair the motor - especially when you can buy a low mileage used motor from japan for a relatively modest sum. > > "Michael Pardee" wrote: > > "carjunkie05" <none@000.com> wrote in message > > news:966474_cd0b040dc53649be3d777ae3c091ee74@autob oardz.com... > > >i have a 92 prelude 4ws that i just finished replaceing > > valves and > > > timeing belts after everything was put back together it > > would only > > > fire on the 1st and 4th piston and misfire on the 2nd and > > 3rd any > > > ideas of how to correct this > > > > > > > Are you 100% sure the spark plug wires for #2 and #3 are not > > swapped? If > > that's good, check the compression in the cylinders. If #2 and > > #3 are very > > low, the cylinder head will have to come back off :-( and the > > head checked > > for flatness. At the least, low compression in the center two > > cylinders > > means the head gasket didn't seal between the two. > > > > Come to think of it, if the compression is very low on those > > two you can try > > retorquing the head (only because the gasket is newly > > installed - you didn't > > re-use the old one, I hope). Make sure you follow the torque > > pattern and > > procedure closely. It is a desperation move, but so much > > easier than taking > > the head back off. > > > > Mike > > > > Mike > |
Re: misfire problem
carjunkie05 wrote:
> mike i checked my compression and i am loseing my pressure though the > head gasket i already had the head checked for flatness so i must have > a faulty headgasket. i�m gunna get another one on tomarrow and see how > things go from there thanks a bunch what makes you sure it's the gasket? burnt valves give gasket-like compression symptoms, but no leakage into the coolant. cracked heads/blocks give gasket-like symptoms, so much so that they're indistinguishable without detailed crack detection. there comes a point where it's uneconomic to repair the motor - especially when you can buy a low mileage used motor from japan for a relatively modest sum. > > "Michael Pardee" wrote: > > "carjunkie05" <none@000.com> wrote in message > > news:966474_cd0b040dc53649be3d777ae3c091ee74@autob oardz.com... > > >i have a 92 prelude 4ws that i just finished replaceing > > valves and > > > timeing belts after everything was put back together it > > would only > > > fire on the 1st and 4th piston and misfire on the 2nd and > > 3rd any > > > ideas of how to correct this > > > > > > > Are you 100% sure the spark plug wires for #2 and #3 are not > > swapped? If > > that's good, check the compression in the cylinders. If #2 and > > #3 are very > > low, the cylinder head will have to come back off :-( and the > > head checked > > for flatness. At the least, low compression in the center two > > cylinders > > means the head gasket didn't seal between the two. > > > > Come to think of it, if the compression is very low on those > > two you can try > > retorquing the head (only because the gasket is newly > > installed - you didn't > > re-use the old one, I hope). Make sure you follow the torque > > pattern and > > procedure closely. It is a desperation move, but so much > > easier than taking > > the head back off. > > > > Mike > > > > Mike > |
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