Finally car is finished!!! GOt some questions

[chillmieste]

After 11 months of rebuilding the motor its finally done. Im breaking it in right now and I have a couple of questions id like to ask. THe car started leaking oil from where the head meets the block. Do you know what the porblem could be? Also My belts start to screech really loud once I drive every once in a while. How would I fix that problem? Also my mph gauge does not read my speed? What should I do? My rpms, water,and gas gauge work though. SR20s are just such kick *** engines, ill post some pics once my camera starts to work again.

[robbbby]

What kind of headgasket? Studs or head bolts? Did you follow the procedure in the FSM for reinstallaing the cylinder head and headgasket?

[RMiller]

The screeching is probably caused from loose belts. Make sure they're tight. Check your wiring by the ecu.

[chillmieste]

The belts seem pretty tight to me, how do I know if their tight enough though? Also I had a shop put my motor back together for me. Im using a cometic hp headgasket.

[sgpnismo]

the belts are either loose or not on correctly and what speedo are you using? a pre 91 will not work

[chillmieste]

The belts really dont make noise anymore, wheich seems kind of strange but Im using the dohc speedo my 240 was a 91 to begin with. IM using the ka computer with my motor though, I was thinking that the speed sensor is not hooked up or somthing.

[RMiller]

The screeching can be intermittent-->definitely loose belts. They shouldn't feel like a guitar string, they should be pretty tight. There should be very little play, like 1/2 inch for a 1/2 foot length. (not sure, but point is it needs to be tight!) Your speedo should work, regardless of year. You might have pulled the plug out while bolting your steering column back in place. I did that with my tach once without realizing it. Wasn't working, so I took it out and I had pulled it out while moving the wires out of the way to make room for a socket extension. KA computer?

Oil leak...tell the shop that put your motor together, hopefully they back up their work.

[BaliLover]

You should NOT be using the KA computer, hell, I don't even know how thats possible. As far as I know the KA ECU doesn't have anyway to control the CAS or the direct fire ignition, it was designed to use much smaller injectors so you should be having problems there too, and its got no provisions for any sort of boost maps.

Are you sure you're running the KA computer, whats the number off of the front of it?

[chillmieste]

http://www.cardomain.com/id/chillmieste240sx

Thats the set up im running. Heres my horrifiying 240 story. Ran the ka for about 9 months then it blew up. Found an sr20 motor from a private seller in miami. BIGGEST MISTAKE EVER! Got it for a thousand dollars with port and polished head cam gears and t3 turbo. He said he ll install everything for 400 dollars. I was like 16 and said thats a deal not knowing you get what you pay for. When he finished, he said it started but did not drive well. I drove it home and it ran like crap. I did a compression test asap and two cylinders had no compression. I called the guy for 2 months everyday and evntually he changed his number and i never have seen him since. I got screwed over with this pos engine that doesnt work. So i finally did some research got my **** together and decided to get it done the right way. GR technologies ended up rebuilding my motor with forged rods and pistons and make it run right. It was a bit expensive but the motor runs beautiful. The only problems are the belts once in a while and the oil leak which he said he will fix when i bring it in today. The speedo did not work when it was installed by the first guy. Im using the ka computer but its also running with an emanage so the motor actullay runs really well. IM breaking it in as we speak. I just dont want to pay to get the speedo fixed I wanna check it out for myself. Just last night i checked the speedo sensor by the transmission and its plugged in their but the other end is just hanging next to the starter not plugged in to anything. So right now im checking which wires i need to use to plug it in to that plug.(sorry if sounds confusing.) Thanks for all the iinput from everyone these forums are so helpful.

[nismostate]

wow, what a frankenstein. sorry to tell you this but you might have to take the head of a recheck the headgasket. was the block and head decked? your head bolts might not be torqued down right either. check all the torque specs and do a leak down test. a compression test on it wouldn't hurt either.

[nismostate]

wait WTF?! why in the F do you have a distributer? is it just me or does it look like a KA with a red valve cover OR an SR20de with a turbo?



edit:nevermind, it can't be a KA but why is there a distributer?
Modified by nismostate at 11:22 PM 12/7/2004

[BaliLover]

Why is there no INTERCOOLER!? Even the stock SRs had a sidemount, and hes running a much larger turbo.

It looks like someone either turboed the RWD Sr20DE, or they found a way to use a distributor with the SR.

If it is the RWD SR20DE, then it SHOULD have been running a much higher compression before the rebuild.

THat thing is a bastard child for sure.

[Pepperoni]

It's an SR, but like the above people mentioned, why does it have no intercooler? and distributor.....and KA ECU.......wow.... did the shop even know it was an SR? Do they know what an SR is?... and how a turboed engine works..?
Modified by Pepperoni at 7:39 PM 12/7/2004

[89240]

STILL NOT RUNNING AN INTERCOOLER!!!

[ultimatuc]

wtf?

[masamunex03]

http://www.sr20forum.com/archi....htmlITR_KILLRif you go with JWT on a DET swap in a 240, do you have to use a distributor? what are the most common fuel management solutions?JayLewIf you use the KA computer, yes. If you use the SR computer, no.

http://www.sportcompactcarweb....ilvia/If you can't get the harness and ECU and you have a harness from a 1991 or later U.S. car, it's possible to convert a U.S. harness and ECU to run the SR20.Unfortunately, the SR20DET uses a direct coil-on-plug ignition system with four coils, and U.S. ECUs are only capable of driving a single coil. The Japan-only non-turbo rear-drive SR20DE uses a single coil and distributor that can used on the SR20DET, if you can find one.

[chillmieste]

Here is the answer to all the questions.If you have read from the long story above I got screwed over the first time. When I took it to the shop he told me im running a ka computer with the ka wiring harness. It can work just as masamunex03 stated above. It a bit ghetto but I saved a crap load of money with this setup. The car would run like crap if the emanage wasnt hooked up. My intercooler is getting put on by christmas, due to lack of money by me. Im running no boost at the time becuase im breaking it in, so the motor doesnt get hot at all. I drove it for like an hour and the motor doesnt act up at all. The motor is defintely a rwd sr20det though.

[BaliLover]

The reason the car runs like crap without the Emanage is because you are running injectors larger than the stock KA computer can handle without being retuned.

One of the major strengths of the SR is its direct fire coil pack ignition system. It ensures a reliable strong spark in every cylinder. If I were you, I'd want to put an upgraded ignition of some sort on that motor, larger strong coil, MSD box, etc just to insure you don't have problems at higher boost levels.

[chillmieste]

i NEVER REALLY THOUGHT OF THAT. Thanks I will defintely do that

[Altiman94]

dude, wtf?

[Beemen550]

dude, wtf?

lol, your clownin with that setup dude, and how r u running no boost, do u have the wastegate held open with something?

but once u get that FMIC and upgraded ignition that b*tch is gonna haul *** with that turbo