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-   Rotary Engine Building, Porting & Swaps (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/)
-   -   New Rebuild Starting Issues (https://www.nopistons.com/rotary-engine-building-porting-swaps-55/new-rebuild-starting-issues-25255/)

ryosuke_fc 09-22-2003 09:24 PM

Well, I know this has probably been covered before, but I only found one thread with a similar problem to mine, and he never got an answer. So, anyway we finally got the engine rebuilt and back in the car, and got everything hooked up, but unfortunately the car just won't fire up. It appears that it might be flooding because the spark plugs are covered with fuel. All of the plugs seemed to be firing alright though. We did run a compression test and were seeing about 75 in the rear rotor, but only like 40 in the front. :( I'm not sure if this is cause for concern on a new rebuild, but it seems to me like it should be. :( This is a full rebuild with all new hard parts, gaskets, and bearings.



I've eliminated all emissions equipment per the guide over at rx7club(Am I allowed to say that here?). It appears that all vacuum lines are connected, as well as all electrical connections. We pulled the spark plugs and decided to just let it sit over night and dry out. The only other thing we could think of was the battery. It's the battery that was in the car, and the car was sitting for several years. We let it charge all day, and it appeared to be holding a charge. I guess it's worth a shot to try another battery anyway though eh? Does anyone know what could be the problem? Thanks for your help.

BigTurbo74 09-23-2003 12:29 AM

make sure you set your cas/timing, then do it again to make sure it is right, then, yea check it one more time...after that push start that bitch down a hill or somethin. keep it running and see if it idles, if it doesn't u prolly got some vacuum leaks as i did... also keep your eye on your coolant temp gauge just in case. good luck

ryosuke_fc 09-23-2003 02:35 AM

Alright, well we checked the timing 2 or 3 times. It looks right on. I'll check it again tomorrow. Prolly try a new battery, then maybe try push starting it I guess. I really wanted to avoid that because if it doesn't work I'll be even more screwed than I am now with my dead car down the road instead of in the garage.



I can't figure out how you're supposed to fill the damn coolant. we got about half a gallon in there, and it takes 2 but the thermostat is blocking it on the one side and the low spot in the hose is blocking it on the other. I'll definately be keeping an eye on it though for that reason.

treceb 09-23-2003 07:56 AM

try putting a lil ATF on the engine, it will help build some compression, or someting like that. thats how i got mines to start, we had the same problem, thought it was bad timing, then my friend comes over and poured some ATF and after a few cranks it started. and definately get a good battery.

chase78 09-23-2003 10:44 AM

timing is a very important



go to Lighting in a World of Thunder for INFO and tips

then comeback here if you have problems.

vosko 09-23-2003 11:00 AM

check all your grounds..... if everything is fine. roll it down a big hill and pop the clutch

Bebirasta 09-23-2003 11:01 AM

yea wat treceb is sayin is tru try puttin some atf on in the engine because most likely its the compression that wont let it turn on and also check ur coils and how much spark ur getting .. check if there is any spots or places where air is escaping like on the intake if u torque it too much that might cause it to let air come out and things like that

walter 09-23-2003 03:20 PM

PUT MARVALS MYSTERY OIL IN BOTTOM TWO SPARK PLUG HOLES(MAKE SURE YOU FLUSH ALL EXESS GAS BEORE DOING THIS). ADJUST TIMING ON CAS WITH PULLY. GET A GOOD BATTERY(VERY IMPORTANT WHEN TRYING TO START A REBUILD-MUST BE SPINNING FAST).mAY HAVE TO DO THE OIL PROCEDURE A FEW TIMES BUT IT SHOULD START. MAY WANT TO HAVE A FRIEND WIH YOU WHEN YOU DO THIS BECAUSE YOU MAY NEED TO ADJUST THE HARD IDLE SCREW TO KEEP IT IDLE.(DO NOT LET IT DIE WHEN YOU GET IT STARTED, STAY IN CAR AND GIVE IT GAS WHILE YOUR FRIEND ADJUSTS SCREW. THIS IS ONLY MY EXPERIENCE WITH REBUILDS( ABOUT 12). IF YOU HAVE ANY MORE QUESTIONS PM ME

BigTurbo74 09-23-2003 09:48 PM

don't give up man, **** is very very very frustrating but i once u get it all good, everything will be gravy

ryosuke_fc 09-24-2003 12:39 AM

What is the hard idle screw? Isn't that something on the N/A's?



I might try the ATF thing tomorrow I guess. I really wanted to avoid push starting the thing because my road is kinda curvy and I don't want hte car at the bottom of it if it doesn't start, but if that's what it comes to then that's what I'll do I guess. Thanks for the help everyone.



We've had some trouble timing it. When we connect the timing light to the trailing wire, it shows the exact same timing as the leading wire which is not right. That seems to mean to me that they're all firing at the same time. When we pulled the plugs out though, they're firing at different times. I donno what the deal is with it.



Also, all the idiot lights and gauge cluster lights are on whenever I turn the key on, but I don't think it was like that last night. I messed with the EGI fuses today, but that was it. Anyone know if that problem could be related? Or if it is even a problem after the car is started?


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