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Trouble starting after s5 t2 swap into s4 na

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Old 07-26-16, 03:12 PM
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Originally Posted by satch
Was it not pointed out earlier that you possibly had an electrical issue. Since that point was made how much time have you expensed figuring out whether that was the case or not. Is the answer zero?
Kinda slipped my mind to be honest. So yes, the answer is zero. I wouldn't even know where to begin. Could this be causing the bad compression? I've added some
MMO and spun the rotors everyday by hand for about a week. Tested compression and it's still around 30 psi.
Old 07-26-16, 03:14 PM
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Try pull starting it. If it doesnt get compression after that its probably blown.
Old 07-26-16, 03:36 PM
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Originally Posted by _Bigwormfab
Kinda slipped my mind to be honest. So yes, the answer is zero. I wouldn't even know where to begin. Could this be causing the bad compression? I've added some
MMO and spun the rotors everyday by hand for about a week. Tested compression and it's still around 30 psi.
Electrical has nothing to do with compression, like stated, pull start it and see what happens, may need to give it a shot of starting fluid to help it along

If it fires you won't have to worry about any elephants sticking around
Old 07-26-16, 03:51 PM
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Both of his injectors are firing.
Old 07-26-16, 04:47 PM
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I was saying starting fluid to help with the MMO in the housings. May not need it, never know with the one weak rotor
Old 07-27-16, 07:08 AM
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The pop start was a negative. Made it to the end of my ally way (roughly 100 feet) and she died and we had to push it back to my garage. Still sounded/felt the same as before so I'm assuming the rear rotor is toast. Guess re build it is! Thanks for all your help guys, learned a lot over the past two weeks
Old 07-27-16, 07:12 AM
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Thought about doing a Bridgeport build as its always been a dream of mine to have a crazy braaaping rx7, but I decided to save up and hold off on that for now as it seems it's lots and lots of work, time, and of course money. Probably gonna just tear down rebuild everything necessary and go with rtek on the ecu and whatever mods needed to support the chip. I've heard good things about the pocket logger tunes
Old 07-27-16, 08:08 AM
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when i said pull start it i meant tie it to another vehicle and pull it around in gear.
Old 07-27-16, 08:53 AM
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Ya you need more then 100 feet, almost need a couple blocks
Old 07-27-16, 12:31 PM
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Originally Posted by Fuhnortoner
when i said pull start it i meant tie it to another vehicle and pull it around in gear.
Oh wow, defiantly miss read your post. Thought you mean pop start it with the clutch. Never heard of pull starting. I'll give it a shot though!
Old 07-27-16, 03:56 PM
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Pull it with another vehicle, and pop the clutch in 2nd gear, just get ready to hit the clutch again in case it starts so you don't run into the other car lol
Old 07-28-16, 07:03 AM
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Originally Posted by lduley
Pull it with another vehicle, and pop the clutch in 2nd gear, just get ready to hit the clutch again in case it starts so you don't run into the other car lol
No luck with the pull start. It barely wants to stay on now, way less than when pop starting. I'm thinking the rear rotor is toast
Old 07-28-16, 07:15 AM
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its still odd that it won't fire honestly, usually these will run on 1 rotor, it sounds like a v8, but will usually run. If it were me, Id almost want to get it running on the 1 rotor and see if the rear one breaks out've it and comes to life. Its your choice though
Old 07-28-16, 11:04 AM
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Originally Posted by lduley
its still odd that it won't fire honestly, usually these will run on 1 rotor, it sounds like a v8, but will usually run. If it were me, Id almost want to get it running on the 1 rotor and see if the rear one breaks out've it and comes to life. Its your choice though
I'm not even completely sure what's happening. Is the rotor not spinning or is it stuck? What's happening. I'm not really understanding fully
Old 07-28-16, 11:15 AM
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Originally Posted by _Bigwormfab
I'm not even completely sure what's happening. Is the rotor not spinning or is it stuck? What's happening. I'm not really understanding fully
Bro,

Basically you have compression on the front rotor, but not the rear. Sometimes the seals can get stuck down, causing a no compression condition. We were hoping that the MMO and pull starting it may have free up the seals. It either didnt free up the seals or you have broken seals.

What iduley was saying is that the car should be able to run on only the front rotor. If you can get it running on the front rotor, and run the engine for a while, it could possible free up a stuck seal, if thats whats causing your no compression condition.

so youve already checked compression, and fuel.

next check for spark.

if you have spark, check timing.

if it still doesnt start, make sure the engine isnt flooded.

Do it. Ready BREAK!
Old 07-28-16, 01:40 PM
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^this, if the rotor wasn't spinning you would be looking for ANOTHER engine
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