TII running like crap
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TII running like crap
so i just rebuilt my motor about a month ago an ive been having the hardest time to keep it running. I have only about 23 miles on it cause of this. I got it running the past few days an i just drove it some more, an it ran like ****. i would let the clutch out an it would try to bog so i would have to slip it as i gave it more gas. i got going an it just felt really sluggish an it sounded like its running off like 5 of the 6 faces but i pull my plugs out an i hear six pops. 3 on each housing. so im thinking its not blown. but a dude i was talking to said that even if i broke a apex seal it would give compresson an run like crap till i got to like 3500 4000rpm is that true.
but i was driving it at about 15miles an it was good an all of a sudden outa no wear it started to happen. insted of a nice baaaaa its like braa braa braa braa an it just felt really slow an running like crap. i changed the plugs an still had the same problem. i put a new fuel filter in my pump is still good an a new selonoid resistor. but i noticed today driving it i got it to run an i drove it an all of a sudden when i pulled in my driveway had my foot on the gas an i heard a loud exhaust leak i looked under an it looked like it was coming ffrom my resinator. i have 3" one cat an behind the cat about a foot or so resinator. could that have got clogged an blew the gasket out? please someone help me with this i havnt had much luck on here cause i never used any commas periods an stuff like that.
but i was driving it at about 15miles an it was good an all of a sudden outa no wear it started to happen. insted of a nice baaaaa its like braa braa braa braa an it just felt really slow an running like crap. i changed the plugs an still had the same problem. i put a new fuel filter in my pump is still good an a new selonoid resistor. but i noticed today driving it i got it to run an i drove it an all of a sudden when i pulled in my driveway had my foot on the gas an i heard a loud exhaust leak i looked under an it looked like it was coming ffrom my resinator. i have 3" one cat an behind the cat about a foot or so resinator. could that have got clogged an blew the gasket out? please someone help me with this i havnt had much luck on here cause i never used any commas periods an stuff like that.
#2
rotors excite me
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Check timing, check for vacuum leaks, make sure you have oil pressure and enough fluids. I don't think an exhaust leak would cause you this much trouble either. You haven't tried boosting it, have you? You need to put at a BARE MINIMUM 1000 miles on it before boosting at all, and it would be recommended to put 2000 on it before boosting. Now, I didn't follow that exactly for my build, but I used a lot of new and very nice used parts in the build so it broke in faster, and I'm an impaciente.
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Check timing, check for vacuum leaks, make sure you have oil pressure and enough fluids. I don't think an exhaust leak would cause you this much trouble either. You haven't tried boosting it, have you? You need to put at a BARE MINIMUM 1000 miles on it before boosting at all, and it would be recommended to put 2000 on it before boosting. Now, I didn't follow that exactly for my build, but I used a lot of new and very nice used parts in the build so it broke in faster, and I'm an impaciente.
#4
rotors excite me
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Did you replace your coolant seals when you rebuilt it? From what I've read; after the motor's been wet, opened, then the coolant seals reused; the coolant seals tend to fail quickly if not immediately. Whenever you open a motor you have to replace the coolant seals.
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Did you replace your coolant seals when you rebuilt it? From what I've read; after the motor's been wet, opened, then the coolant seals reused; the coolant seals tend to fail quickly if not immediately. Whenever you open a motor you have to replace the coolant seals.
Last edited by gabs88gxl; 05-27-08 at 06:42 PM.
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heres my videos of my compression heres my rear http://www.youtube.com/watch?v=_WwculLh4Hw
an heres my front
http://www.youtube.com/watch?v=5_yCogLSFYY
an heres my front
http://www.youtube.com/watch?v=5_yCogLSFYY
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#8
rotors excite me
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"but a dude i was talking to said that even if i broke a apex seal it would give compresson an run like crap till i got to like 3500 4000rpm is that true."
I had forgotten to answer that. Blown motors typically run really poorly and I suspect each blown motor will act a little different from the others as well, however I doubt it would run well at any RPM, it just might seem to run smoother at mid to high RPM. I also don't have personal experience driving a blown motor, but I've read several accounts of it.
I had forgotten to answer that. Blown motors typically run really poorly and I suspect each blown motor will act a little different from the others as well, however I doubt it would run well at any RPM, it just might seem to run smoother at mid to high RPM. I also don't have personal experience driving a blown motor, but I've read several accounts of it.
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yea like it runs bad at low rps but as soon as i get to like 3500 an up it seems to smooth out but then i shift. but other than that i dont know what it could be im so confused with it
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timing is good my turbo stays gray an coolant temp is pretty good cant tell numbers cause the mazda gauge. but i did a mazda compression test today an my rear rotor is really weak so im goin to tear it apart an see whats up....
#12
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In the videos you posted sounds like teh rear rotor has problems to me. You can distinctly hear the pulses in the front rotor and only one in the rear. Maybe it's just the way the camera picked it up but thats what it sounds like to me. Loss of compression on two side of the rear rotor equals one bad apex seal.
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In the videos you posted sounds like teh rear rotor has problems to me. You can distinctly hear the pulses in the front rotor and only one in the rear. Maybe it's just the way the camera picked it up but thats what it sounds like to me. Loss of compression on two side of the rear rotor equals one bad apex seal.
#14
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i have the same exact problem. But everyone tells me that its just a break in procedure... Im scared to drive it on the busy street, ppl will honk at me lol. ive gone through about over a full tank of gas, its getting abit easier to start, but sometimes it floods right away due to low compression.. I have to pull the plugs and deflood it.. Its annoying and it smokes alot[from the assembly lube] well ill just keep breaking in and see...
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Mine ran like *** for at least 1000 miles. Man, it was a bitch driving it the 100+ miles back from Portland. Never flooded once, though everything in the engine is new. Around 1200 miles it started getting better...so I would assume everything is okay, but who knows? Hopefully for you it is.
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Mine ran like *** for at least 1000 miles. Man, it was a bitch driving it the 100+ miles back from Portland. Never flooded once, though everything in the engine is new. Around 1200 miles it started getting better...so I would assume everything is okay, but who knows? Hopefully for you it is.
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