is my motor blown
12-11-11, 12:51 AM
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is my motor blown
i was driving my car earlier its a streetported 13b turbo i just installed a new wiring harness last night and it was driving great went and washed it at the quater car wash pulled out kinda got on it to get in front of traffic. then it just started running like ****. drove it down the street to my house made it back had it idling then died. i then looked around everything looked normal no leaks or anything so i assumed the worse pulled out the compression tester and by now my car is cooled down and will not start for the life of it and i got 60 psi for the front and rear rotor idk if its just low for only having about 75 miles on the motor or should it still be really low .
12-11-11, 01:35 AM
#2
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sorry, sounds like it might have took a poop.. 60 is low, and a new motor has no reason to have low compression, it should be very high (healthy) compression. You shouldn't ever beat on a new motor like that, but as long as it wasn't sitting at 9 grand it should be fine for a quick 6 grand burst out of a car wash.. i would maybe take it back to the guy who built it, or take it apart to see if anything was put together wrong...
12-11-11, 01:39 AM
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A newly rebuilt engine needs to build compression... Even after 75 miles. Don't freak out just yet.
If you've been trying to start it over and over and over, it may just be heavily flooded. Deflood and try to start it tomorrow. You really should baby an engine for the first 800-1,500 miles. (Depending on the build.)
If you've been trying to start it over and over and over, it may just be heavily flooded. Deflood and try to start it tomorrow. You really should baby an engine for the first 800-1,500 miles. (Depending on the build.)
12-11-11, 01:39 AM
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dammnnnnn ya i think i fucked up gonna have to sell it now unfortunatly dont got the time or money to tear it back down this blows but i knew better so i shouldnt of been the dumbass i am and babyed it
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12-11-11, 03:12 PM
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So i pulled my uim and fuel rails and it was sitting all night and my secondary injectors where still really wet with fuel. so im thinkin maybe there stuck open because when i pull my plugs after deflooding it for a good 2 minutes where still covered in fue.l put my compression tester on it agin today and it was reading about 70 psi on both rotors today. jw how likely would it be if they got stuck open just getting on it could that be a possibility.
12-12-11, 10:39 AM
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Okay I haven't checked see if my injectors are stuck open yet. But I gotta question about a faulty injector clip how would that go bad even after it was running so good. Because when I put that new harness in it was a complete different car it would idle below 1000 rpm unlike before. And if I back probe the ecu at the injector wires would that be able to tell me if there stuck open?
12-12-11, 11:06 AM
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Okay I haven't checked see if my injectors are stuck open yet. But I gotta question about a faulty injector clip how would that go bad even after it was running so good. Because when I put that new harness in it was a complete different car it would idle below 1000 rpm unlike before. And if I back probe the ecu at the injector wires would that be able to tell me if there stuck open?
If you do not have a Factory Service Manual, here's a link to some FSM links: https://www.rx7club.com/showthread.p...18#post5131218
12-12-11, 11:10 AM
#12
Okay I haven't checked see if my injectors are stuck open yet. But I gotta question about a faulty injector clip how would that go bad even after it was running so good. Because when I put that new harness in it was a complete different car it would idle below 1000 rpm unlike before. And if I back probe the ecu at the injector wires would that be able to tell me if there stuck open?
12-12-11, 01:34 PM
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Alright I defiantly plan on doing wat karack said to do just gotta wait for the weekend only time I have to work on it. If they are stuck open wat would've caused that to happen and wat should I do to fix it.
12-16-11, 12:33 PM
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but ill post some vids of the compression test and see if i can get a good quality sound video with the pulses so i can get an opinion later tonight. also checked to see if my injectors where leaking nothing was coming out. but its been sitting for about a week and the injectors where all wet with fuel still.
12-16-11, 12:54 PM
#18
just did that and it dosnt sound like the pulses are even this blows im such a dumbass but ill post some vids of the compression test and see if i can get a good quality sound video with the pulses so i can get an opinion later tonight. also checked to see if my injectors where leaking nothing was coming out. but its been sitting for about a week and the injectors where all wet with fuel still.
but ill post some vids of the compression test and see if i can get a good quality sound video with the pulses so i can get an opinion later tonight. also checked to see if my injectors where leaking nothing was coming out. but its been sitting for about a week and the injectors where all wet with fuel still.
12-16-11, 08:48 PM
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also if it is a broken apex seal and sense it is all pretty much rebuild would i still be able to reuse my side seals and all the springs and just get new apex seals as long as the springs are all there and can i reuse the coolant gaskets or should i just get new ones anyway if i rebuild it.
Last edited by boostkeepsmesane7; 12-16-11 at 08:59 PM.
12-16-11, 09:14 PM
#20
just i knew better than to get on it like that but my stupid led foot lol. but yea thats exactly wat i was thinking about doin but its cold out tonight and my heater is outta kerosine lol .
also if it is a broken apex seal and sense it is all pretty much rebuild would i still be able to reuse my side seals and all the springs and just get new apex seals as long as the springs are all there and can i reuse the coolant gaskets or should i just get new ones anyway if i rebuild it.
also if it is a broken apex seal and sense it is all pretty much rebuild would i still be able to reuse my side seals and all the springs and just get new apex seals as long as the springs are all there and can i reuse the coolant gaskets or should i just get new ones anyway if i rebuild it.
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