Basically my old engine's oil seal went out and i got a motor out of a friends car that was rebuilt but it was left out out side for a long time. Swapped it in my car hoping it would start. Basically all i get is cranking not even a single sound of ignition. i checked all my spark plug wires and they all are sparking. New oil, new coolant, new spark plugs, new transmission fluid new air filter, and new vacuum lines! I tried to diagnose it, my maf sensor at crank seems to open only slightly. could that be a problem? any help would be appreciated!

 

Try jumpering the fuel check connector.

 

is that the yellow two pin?

 

Should be. Also, if the new engine is a JDM version then the send and return fuel lines are connected differently compared to the non JDM engine.

 

or spray a few shots of some carb cleaner into the intake and place the AFM back in place before cranking.

 

hmm i removed my sparkplugs and they are wet with fuel :/ maybe too much fuel is going in?

 

You try unflood procedure?

I blew my main engine fuse (cockpit fuse) and tried starting it, and flooded it. Then I found out I blew the fuse, replaced it, and didn't know I flooded it, so I thought something else was wrong. Started right up after I remembered I had an engine prone to flooding. Try it if you haven't. Sometimes the most complicated things are the simplest.

 

On the path of the simplest things sometimes elude us....
Make sure your MAF is connected or it will not start.

Your sig shows several cars, is the 90 project car the one you are having problems with?
If it is hold the gas peddle to the floor, crank for 10 seconds, pause for 10 sec, repeat. It should become obvious when to release the peddle. S5 cars cut fuel when the peddle is floored during startup.

 

did you line up the cas per fsm

 

i did line up the cas, no its no the project car its my DD and i tried the unflooding procedure but it seems like it only ignites one time but it doesnt continue

 

if you are getting spark
are you getting fuel

 

im getting spark but it always seems like when i remove the sparkplug to check it, its covered with gasoline! i removed the spark plug and i got even amount of psst psst which is the compression. is there a way that i might have plug the fuel line or injectors wrong? right now it wants to start like you can hear it for a bit then it goes back to sounding like its flooded

 

Was either the previous or new engine JDM?

 

im not sure if they are JDM all i know is that there is too much fuel that it saturates my spark plug

 

A fuel pressure test would be helpful in diagnosing your problem. The FPR might be problematic. Pressure should be 80 psi when the gauge is dead headed to the hose coming from the fuel pump and a bit above 30 psi when teed into the fuel line after the filter and before the engine.

 

are injectors for the fc all the same? because i had 8 in a box and i just grabbed whatever was cleanest

 

What size injectors does my RX-7 use? What colour are they?
Year Engine Plug Size Colour Part #
84-85 13B NA, low square center, 680cc, orange, 195500-0900
86-87 13B NA, low square center, 460cc, red, 195500-1350
86-87 13B Turbo, low square center, 550cc, tan, 195500-1370
88 13B NA, high square offset, 460cc, purple, 195500-1350
88 13B Turbo, high square offset, 550cc, purple, 195500-1370
89-91 13B NA, high oval center, 460cc, red, 195500-2010
89-91 13B Turbo, high oval center, 550cc, purple, 195500-2020

 

oh i meant the secondaries and primaries! i just had my old ones and the ones that came with the engine!

 

okay so a rotary mechanic said check my timing. the yellow dot that was on the pully is no where near the stick poking out, going to try to adjust it!

 

Search for threads pertaining to Ignition Timing.
That is your Problem.
align the Main pulley onto it's mark,then See where the CAS is,in reference to the Main pulley.
The CAS has to be taken OUT to see the Mark on the Bottom of it,as it has a Dimple on the Gear.
Pull the CAS Out,align the dimple to the Mark on the CAS's shaft casing and then Put the CAS in..Carefully,as to not allow the Inner workings of the Cas to Move while you Stab it back in the Front cover hole.
Once that is done,the engine should be Fairly IN Time so it can start.

 

DONE thanks to all your guys suggestions! i willl have the video of it starting up! <3 rx7club