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Quoted From EricTheCarGuy:
I’m wondering if perhaps there was an issue when you removed the oil pump, those gears have to be mated together correctly in fact they are marked if you look closely so if you don’t get them back into the correct position the gears may bind. BTW you should not need to remove that pump when you do that job it’s not often the seal behind it leaks.
Its not off yet. Ive been lurking on prelude forums and stuff and the oil pump is actually driven by the crank and thats a balance shaft thats seized. Thats actually what i thought in the first place but i over thought it.
Quoted From EricTheCarGuy:
This has red flags all over it. In all the years I’ve worked on Honda engines I have yet to see a seized oil pump, think about it, it’s the first thing to get oil in the system so if it’s bad somebody did something to it. That argument doesn’t solve your problem however, given that you have a problem with the oil pump it’s probably a good idea to check out the rest of the engine out to be sure you’re not wasting your money on a new pump as there’s no point in putting a new pump on a junk engine. You might want to put it back together as much as you can and do a leak down test on it to see what kind of shape it’s in.
Was it running when you got it and if so did it sound OK? It would have been nice to know what the oil pressure looked like when it was running IF it was running.
Ive already looked at the piston walls and cam lobes and there is no scoring. will take pics if i get around to it. Ive worked with the person for over a year and have always looked at the car its nice and has been taken care of. Im planning to keep the car so if it turns out the engine is bad (most likely not) Ill just replace it then Ive heard of preludes this is kind of common as it needs to be replaced when the timing belt is done.
Quoted From Beefy:
The oil pump is seized? If that’s the case and the engine was starved for oil, you may just want to get a used or reman’d engine, unless you are really looking for a project (which you very well may be)… But if that’s the case, have you pulled the main and rod bearings? The cam? You will need to inspect for damage at all these critical junctions if the oil pump failed/seized up. What is the history of the car that you know of?
The oil pump was running with pressure but has seized under hand pressure (i.e i cant turn it by hand) ive looked and theyre in good condition with no scoring or marks and no metal flakes in the oil. the P.O is a buddy of mine who didnt wanna put the money in it so i got a good deal on it.
Quoted From Beefy:
Well then, I’ll pass this one on to someone more familiar with Honda motor rebuilds. I will keep an eye on your thread though for learning purposes. Good luck bro 🙂
Oh, and by the way, welcome to the forums! There are many smarter folks than me that will help you out.
Thanks i see your from dayton, im from columbus. I wwent over this car from top to bottom before i bought it. Im not familiar with Honda’s but i am familiar with ford. But im tired of ford and this deal popped up.
Quoted From Beefy:
I’m curious what the deal was with the car when you bought it. No start? Running rough? Etc. Any more info you can provide will help the forum help you.
It was the oil pump. and the paint is starting to fade (red honda paint) but other than that no rust and its good
Quoted From Beefy:
So, the car ran fine but the oil pump was bad? That doesn’t add up. I am not being sarcastic, but how was it determined that the oil pump was bad? Was there no oil pressure?
A buddy of the P.O Is a mechanic. he took it in because there was a whining and when he took it in the mechanic told him the oil pump was seizing. my buddy didnt wanna pay the 1+k for it to be fixed.
Quoted From Beefy:
Man, this sounds fishy to be honest. I’m not sure how an oil pump could ‘seize’ without severe oil change neglect, or something getting caught in it… I suppose this could be a super rare issue, but this is the first time I’ve ever heard of it happening. There’s not much to an oil pump. Some sort of driver, a belt in your case, and something to create pressure, which is usually two gears that create a vacuum on one side that draws up oil, and pushes the oil forward. I really need some more info. What is a ‘P.O’ by the way?
p.o=Previous owner. Its because he took it in right away. it was still turning just was very hard.