I'm just wondering if anyone has ever bought or used one of the rebuilt motors they sell.

my motor is dead and i'm looking for another and for 1100 for a s14 ka seems pretty cheap..... maybe too cheap?i'm al;so planning on running between 7 and 10 psi from a t25. would one of the rebuilds they sell be able to handle that?

u thought about doing a rebuild you self? ever looked into buyin a used motor?

^ thats not answering his question. dont respond just to tell the OP what to do

I also considered buying one of those, but iirc, i'm pretty sure theres also a core charge of $400. and its not refunded until you send them your block.

im sure they could handle some boost.

yes i have thought about a rebuild but with limited tools and knowledge i may be over my head. and as for a used one if i can find one cheap ill do that. but around 1600 shipped to my house seems to be a good deal. plus it would be rebuilt so i know it should last for a while . just wonder how cheap the parts they use are. like if they could handle a little bit of boost

Yeah, well I live really close to JIS and have visited their shop. General consensus around town (individuals and performance shops) is that if you're looking for a stock replacement motor, they'll do just fine. If you plan on modifying it (like, adding boost), go another route.

The reason why is because they reportedly take shortcuts when they rebuild, ie... if you have a scored cylinder, they'll just bore that one cylinder instead of all 4, so you'd end up with uneven compression. That's just one example I've heard.

Take that with a grain of salt...

according to them they have a 1 year 12000 miles warrenty. but if they cut corners i would rather just try it myself :/

Yeah, for every 2 people who recommend them, I find 2 more that don't recommend them...

hmm. i guess i have something to think about now. i guess if i do go with them i can be the one to review them lol

s14derrick wrote:yes i have thought about a rebuild but with limited tools and knowledge i may be over my head. and as for a used one if i can find one cheap ill do that. but around 1600 shipped to my house seems to be a good deal. plus it would be rebuilt so i know it should last for a while . just wonder how cheap the parts they use are. like if they could handle a little bit of boost

$1,600 for a KA...personally, that would make me consider other engine possibilities when i swapped in my new motor, i sold my used ka for $350...it burnt a little oil, but it pulled hardi say sit on it a while and think of alternatives

Lol... I can pick one up for $900. For $1600 you could afford to have your's rebuilt locally with forged internals. Hell, you can buy SR's for around $1500 now...

It's when I realized this that JIS stopped being a viable option for me.

simmode1 wrote:Lol... I can pick one up for $900. For $1600 you could afford to have your's rebuilt locally with forged internals. Hell, you can buy SR's for around $1500 now...

It's when I realized this that JIS stopped being a viable option for me.

you wanna let me in on this sr $1500 dealio?

thats kinda what i was thinking. because i could get all my parts for like 1000 and have money left over for machine work . i've got no clue how much someone would charge to put it together for me though

DirtyGhettoKids wrote:
you wanna let me in on this sr $1500 dealio?

I dunno. That's just what I keep hearing from SR guys like WhiteComet, Didderson and Mr.Greeneyes. You gotta ask them...

s14derrick wrote:thats kinda what i was thinking. because i could get all my parts for like 1000 and have money left over for machine work . i've got no clue how much someone would charge to put it together for me though

You can get your block machined for around $300. The shop I plan to use charges about $800 for assembly.

So what the verdict on JIS, I may be getting one from them soon.

If your looking for used I am parting out an entire 1995 S14 Ka / 5 speed car, 90K

JKL1031 wrote:So what the verdict on JIS, I may be getting one from them soon.

THEY ARE TRASH!!!! I have now witnessed their work first hand & it sucks a**!!!! Even bone stock motors blowing up!

I checked out their site and those part's kit are CHEAP. And their rebuild process was vague and missed some key stuff.

Yeah, a buddy of mine bought a Civic motor from them even after I warned him not to. You can bet you a$$ he regrets that. They didn't want to honor the warranty either.

How long did the engine last, and what went wrong? Any other reasons you have something against them?

So now what?

Well they aren't selling fully rebuilt motors. They are selling cheaply rebuilt motors using cheap cheap internals and recycles parts.

http://jisautoengine.com/nissan-240sx-9 ... a24d2.html

1 PIN REMOVER -- to avoid connecting rod damage (Gee I'd hope so)
2 PIN INSTALLER -- heat with temperature to install piston pin smoothly (Not sure why they list this)
3 ROD RESIZER -- to make the rod surface is true round and smooth (this is standard when using used rods and crank with a new larger bearing)
4 HONE MACHINE -- precision hone for ultimate performance, (Why not a mile overbore?)
5 WASHER -- high heat and pressure to clean internal dirt for passage (Why not sonic clean, acid bath, and hot tanking?)
6 POLISHER -- to smooth the surface of crankshaft (redundant, you need to do this)
7 SIMTEST -- 100% TESTED, BEST QUALITY!! (Whatever this is?)

No x-ray, sonic test or magnifluxing listed

NEW parts installed: When the rebuild kit they sell is only $300.00 I'm worried, very worried.
PISTONS, PISTON RINGS,
GASKETS AND SEALS,
OIL PUMP, MAIN and ROD BEARINGS,
TIMING COMPONENT, PISTON RINGS,
THRUST WASHERS (if applied)
FREEZE PLUGS (if applied)
Rebuilt cylinder head ( My guess is they clean it, clean the valves, shim the lifters and replace the stem seals)
Reconditioned crankshaft ( yeah they are polishing it to meet bearing clearance, this is normal)

yea i realized the fact that they are recycles.

Meh I dunno the dollars dont stack up. I'd rather pay more and have a motor built using better parts.

Ill check n see what my mechanic has found.

Interesting opinions, I'm most likely using one of their rebuild kits (or another ebay kit) but with cometic head gasket and arp head studs. I just dropped my disassembled motor off at a local shop for machine work last night. I figure if stock high mileage KA's are holding up to some boost, this setup should be pretty good and cost effective.

But to OP I didn't think I had the knowledge or tools either to do my own rebuild but a trip to harbour freight and a stack of DVD's from 240sxtech and things are going really well so far. Seems like you may be better off doing your own rebuild. You could have a good amount of machine work, buy the needed tools and some good parts for a rebuild with $1,600.

BTW what makes your motor dead?

Im not the OP, this thread is way from 08, but I first had a suspect internal leak, and now no compression. Its not advised that I re use this engine.

JKL1031 wrote:Im not the OP, this thread is way from 08, but I first had a suspect internal leak, and now no compression. Its not advised that I re use this engine.

Same thing just happened to me. I talked to the guy that EVERYBODY takes their 240 to locally & he told me the last timing chain job I had done on my car was bad since it caused an internal oil leak which starved my motor. Now I have bad valves, scarred cylinders walls & lord only knows what the crank looks like.

I'd love to rebuild it for KA-T, but it just ain't worth it to me with this kinda damage. Time to decide between SR20 or Revup VQ.

JKL1031 wrote:How long did the engine last, and what went wrong? Any other reasons you have something against them?

I think his engine lasted something like 2 months. The compression had dropped dramatically since he bought the motor, the water pump failed somehow, and I think he said something about either bad seals or piston rings... or both.

Either way, the motor had ALOT of problems to have just been rebuilt to OEM specs...

This thread is making me uneasy. I bought my headgasket from JIS

I probably wouldn't worry about a simple part like that. But I sure as hell wouldn't trust them with complex things like a whole rebuild. Check the local forums. They well known for cutting corners on the parts that you can't see inside the engine.

After talking with Tay, I'd get an OEM headgasket from Nissan, personally... If thats for a KA...

Theres a 123 engine, their not showing the correct pic. tho. Their in Cali, so maybe their better

http://cgi.ebay.com/ebaymotors/ws/eBayI ... MEWAX%3AIT