I just got a JDM B18B longblock from hmotorsonline and I was wondering exactly what all should be changed before the motor goes in? Here is a list of everything I have so far, let me know what I'm missing guys.

- clutch
- timing belt/tensioner/spring/waterpump
- alternator/power steering belts (no a/c)
- rear main seal
- complete valve cover gasket kit w/ cam plug
- spark plugs (will also be using a basically brand new distributor and plug wires from my old motor)
- fuel filter

So what else should I replace before the motor gets put in? I dont want to put this motor in and have something stupid that I could of easily replaced fail on me 6 months from now. So for all you guys that have swapped in jdm motors that have probably been sitting around for a while, what all did you replace and what else do you wish you would of replaced before the motor even went in? What went bad the first couple years you had it?

 

i think you should also change the oil pump

 

if u talking about just maintenance then u'll need crank seal and oil pan seal too. but if u talking about how reliable then i would hone ring it and deck and change all the bearings at the least. i guess might as well build it or rebuild it before putting it in. and im just saying this if it was my block that i bought from somewhere that i don't know the history of the block. as for the head if u don't have a whole lot of money i would at least rebuild the head. resurface and change out the valve seals.

 

Well that would just be stupid. Why the hell would I rebuild a motor that only has around 40K on it?? If I'm going to rebuild I would of rebuilt my stock B18A.

I highly doubt anyone who buys a low mileage JDM motor rebuilds it before its swapped in, that just seems pointless. I just want to hear from people that have swapped in jdm motors. What did you replace before it went in? What else do you wish you would of replaced before it went in? And what failed on you the first couple years you had the motor in? If you are not personally running a jdm motor or know of someone running a jdm motor, please dont post. I'm trying to find out from people who have actually bought these motors what is typically replaced and what typically goes out in them the first couple years?

So far ive heard to change the oil pump, crank seal, and oil pan gasket too. Do these typically need to be replaced on jdm motors or are you just reccomending I do these things?

 

BTW, this motor will never get abused. Its just a daily driver that needs to get me from point A to point B reliably.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GsDAteg &raquo;</TD></TR><TR><TD CLASS="quote">Well that would just be stupid. Why the hell would I rebuild a motor that only has around 40K on it?? If I'm going to rebuild I would of rebuilt my stock B18A.

I highly doubt anyone who buys a low mileage JDM motor rebuilds it before its swapped in, that just seems pointless. I just want to hear from people that have swapped in jdm motors. What did you replace before it went in? What else do you wish you would of replaced before it went in? And what failed on you the first couple years you had the motor in? If you are not personally running a jdm motor or know of someone running a jdm motor, please dont post. I'm trying to find out from people who have actually bought these motors what is typically replaced and what typically goes out in them the first couple years?</TD></TR></TABLE>

In your original post, you did not state that it only had 40k miles or even that it was low milage. How are we to know what your milage is? Alot of people dont even know who H Motors is, for all we know you picked up a JDM motor from some salvage yard.

I have, personally, picked up a JDM F22 motor for my Accord. I did not change anything on it, aside from the timing belt. It runs great, it's been 2 years since I swapped it in and it runs like a champ.

 

Well I figured since Hmotors is one of the most popular and well respected places to get engines from you all would know about them. For you that dont know about them they are known for quality, clean motors. I dont know the exact mileage on the motor but its estimated at around 35-40K.

 

like i said man. u only guess. can u personally tell its 40k? all im saying is if it was me. and yes im running jdm motors. and yes i rebuild all mine. i have 3 dc's and a db man. so take the info as i gave it to u as something i did. and it was just an opinion that i gave to u for help. if its not appreciated then thats cool. also maybe u shouldve said something more about that motor u got since u know so much about it. all that was stated was jdm long block. blah blah blah. i guess i can just ask u this then, how u spend your "jdm" block. the money u spent on it, could u rebuild yours for a fresh "0" mileage motor? again if it was me yes i could. i rebuild them all the time and it turns out to be just a lil more then what was offered out there on price, but at least i know i got a fresh new motor. and i can personally guarantee how my motor is vs a "jdm" long block u pick up from word of mouth "o yeh its about let's say 35-40k miles. thats all i gotta say peace

 

If you know much about japanese car laws you would understand why they average 35K. Yes, it could be more than 35-40K but that means whoever owned it had to spend LOTS of money to keep running it. Cars registered in Japan must meet very strict and comprehensive tests after 3 years. And then every 2 years after that it needs to be tested again. The cost of the tests can be as much as 30% of the cars value. There are few cars over 5-6 years old still on the roads. Usually after 4 years old the owner has to pay a yard to recycle the vehicle. So although there is no documentation that says how many miles are on my motor, unless the person spent tons of money keeping it on the road there shouldnt be much more than 35k. And even if there is more, that means the person spent lots of money just to be able to keep the motor, so I'm sure if they are willing to do that they are also going to stay on top of maintence too.

Sorry, it sounded like I pissed you off a little, but your original post just sounded ridiculous. I have never in my life heard of someone buying a low mileage jdm longblock and then rebuilding it. I mean usually thats the whole point of getting a jdm motor, is so you dont have to rebuild your stock high mileage one. I guess maybe if your building it up or something it would be a good idea, but to do it just for a replacement motor in a daily driver would be pretty retarded, IMO.

 

nah not pissed np. good luck. just do what u think is best for ur motor, and saves u time and money for not doing it b4 drop in.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GsDAteg &raquo;</TD></TR><TR><TD CLASS="quote">
- clutch
- timing belt/tensioner/spring/waterpump
- alternator/power steering belts (no a/c)
- rear main seal
- complete valve cover gasket kit w/ cam plug
- spark plugs (will also be using a basically brand new distributor and plug wires from my old motor)
- fuel filter

</TD></TR></TABLE>

I think you just about covered it. I didnt do all the things you listed, but most of them. The only thing i would add that i did to my B18C is change all the coolant hoses, vacuum hoses, water pipe hoses, etc and replace the POS factory clamps with high pressure clamps. If it has the possibility to leak fluid, replace it. If it is an exposed moving part (alternator, timing belt) replace it. Thats my rule. You should be fine bro. In fact thats kinda overkill compared to what me and my friends do when we swap a motor. We just do belts and seals usually. Anyway, good luck with your project.

 

depending on who he talked to at hmotors, 40k could be very reliable, my dad goes to japan and picks our motors out of the cars that still have clusters with original odometer readings.. so its possible to know the mileage.... anyways what year is the b18b and what year is your teg, if you are switching obd II to obd I you will have to change all the electronics including IM,EM. oil pump.... a little more info in the original post could have answered some of our questions... let us know

 

My motor is a 95'. And my teg is a 90', I will be staying non-OBD just because its the cheapest and easiest way to go. I will be using my stock B18A intake manifold and everything attached to it.