I have done a lot of thinking, and been around to read a lot of headgasket blowing threads.
Things i have observed:
1. people that live in cities blow headgaskets more frequently.(so it seems. they always talk about it overheating in stop and go)
2. waterpump seems to go bad at 90k, indicating that maybe it cannot keep up with the engine... dunno, maybe its just faulty, or just wears out.
a. side theory. i think air getting into the coolant and
running thru the waterpump promotes early failure.
3.cooling system is the weak link of these otherwise well engineered cars, leading to excessive water pump wear.
4. My car has never overheated with consistient revs over 2k, but overheats when i am in stop and go or idling. (low revs.)
5. when i had the temp spikes, if i reved it above 4k, the needle immediatly dropped. (only when i hit 4k.)
a. this leads me to believe that the engine is slightly starved
for air at low revs. but by air/ fuel that doesnt make
sense, since an engine that runs rich usually runs cold.
6. Legends with mods blow hg's more frequently.
a. legend mods usually decrease low end torque.
this is my theory on legend head gaskets.
The legend water pump is the problem with the engines. i do not believe that it pushes enough coolant thru the engine, especially in low rpm situations.(remember, hondas are built for revs.) in low rev situations(stop and go) the pulleys could be sized wrong, or the water pump just a weak link(not large/strong enough for a large displacement honda engine), remember the legend is the largest engine built by honda during this time. this causes the engine to overheat, blowing the hg over time.
Side theory.
Honda knows this fact. they realized it in 95. but to redesign, build, and refit EVERY legend with a new one, it was just cheaper for them to discontinue the car and move on, with a larger displacement engine, that was redesigned, (ask dv8, RL cooling is slightly different.)
that is my theory. tell me what you think. The honda theory could be bull****, but i think that the headgasket theory is correct.
Things i have observed:
1. people that live in cities blow headgaskets more frequently.(so it seems. they always talk about it overheating in stop and go)
2. waterpump seems to go bad at 90k, indicating that maybe it cannot keep up with the engine... dunno, maybe its just faulty, or just wears out.
a. side theory. i think air getting into the coolant and
running thru the waterpump promotes early failure.
3.cooling system is the weak link of these otherwise well engineered cars, leading to excessive water pump wear.
4. My car has never overheated with consistient revs over 2k, but overheats when i am in stop and go or idling. (low revs.)
5. when i had the temp spikes, if i reved it above 4k, the needle immediatly dropped. (only when i hit 4k.)
a. this leads me to believe that the engine is slightly starved
for air at low revs. but by air/ fuel that doesnt make
sense, since an engine that runs rich usually runs cold.
6. Legends with mods blow hg's more frequently.
a. legend mods usually decrease low end torque.
this is my theory on legend head gaskets.
The legend water pump is the problem with the engines. i do not believe that it pushes enough coolant thru the engine, especially in low rpm situations.(remember, hondas are built for revs.) in low rev situations(stop and go) the pulleys could be sized wrong, or the water pump just a weak link(not large/strong enough for a large displacement honda engine), remember the legend is the largest engine built by honda during this time. this causes the engine to overheat, blowing the hg over time.
Side theory.
Honda knows this fact. they realized it in 95. but to redesign, build, and refit EVERY legend with a new one, it was just cheaper for them to discontinue the car and move on, with a larger displacement engine, that was redesigned, (ask dv8, RL cooling is slightly different.)
that is my theory. tell me what you think. The honda theory could be bull****, but i think that the headgasket theory is correct.
i'm going to school right now to get my A & P license here in CO. that's what i did in the air force, and it seemed only natural to continue with it.
