I finally got around to starting my car again after the long drawn out FMIC process. Well, at first it didn't want to run at all...then I figured a good push start is all it would take, but after an hour of pushing it down a hill, then towing it back up...i gave up, only to find out that I had left my CAS unplugged during my timing adjustments earlier that day. So I plugged it back in, and primed the oil system...turned the key..bammo, started up for a few secs, then died back out, lol. Ahh...my old problem. However, I noticed that with the oil system primed, it does start easier, so thats a sign...I talked w/ an old buddy of mine who said that a lot of rebuilds that use old housings and new seals will take time before idling right or even to stay running..the new motor needs to build compression! So anyways...it was the lil woman's bday..so i stopped playing with the car for a while..but I'll get back at it tom. Just wanted to let you all know..



BTW, those w/ FMICs, did you notice your intake to be louder with the FMIC?? Not the filter, but I mean the whole intake tract...i guess w/ the larger GReddy elbow and larger plumbing..it just "WHISTLES" more...I LIKE IT https://www.nopistons.com/forums/pub...IR#>/boink.gif

Also, got my new S5 "jetfighter" shifter..i love them! I installed the S5 T2 pressure sensor...and um, yea. I am getting a new BOV soon, just waiting for some bills to clear https://www.nopistons.com/forums/pub...#>/biggrin.png

a rebuild should idle unless its a shitty rebuild. i think you have anotehr problem

Typically, when you rebuild a motor that has new seals and old housings, it takes a while to build up its compression...I'm not completely ruling out other problems, but I know that when I primed the oil system which is supposed to aid in starting rebuilds...it helped. BigTurbo had to push start his rebuild to get it to idle, some cars just need a lil help..but I'll keep you all posted.

Try the atf trick on the motor. Also, priming a dry oil system is REQUIRED on the first time a motor starts up. You don't want to be moving a motor around on dry bearings and seals do you?

push start is to get the engine to start not to run at all..... i'm just saying. i have some experience with rebuilds and trying to get them started. even half dead engines https://www.nopistons.com/forums/pub...DIR#>/wink.png

When the motor was assembled, it was coated with a thin line of oil...as well as a silicon substance to aid in the motor's longevity during storage....





I'm sure it will be ok soon, I'm just gonna keep playin w/ it.

you will be fine. i had to find many many solutions to dumbass problems. best thing i could tell ya would be cas, check for spark, make sure plugs aren't fouled, check for leaky injectors, vacuum leaks, vacuum leaks, and umm oh yeah vacuum leaks!!! good luck

sorry for my lack of wisdom but what is a fmic??

Front Mount InterCooler

I hope it turns out good for ya. My n/a started up as soon as I turned the key over with new seals and used housings.

How long are you talking about for the rebuild to build up compression? My rebuild ran great right off the bat (new seals, one new rotor, old housings). This was even with some vacuum leaks. Just goes to show that each car has its own personality and mind of its own.

Aight gentlemen...well, the lower compression on a new rebuild has been common in some motors I've delt with, and I figured mine was the same...BUT...



Today I pulled the leading spark plug on the rear rotor...started the car, just to see if it would run on one rotor(boredom)..it did, ran decent, but not great...so I figured..great..the rear rotor is probably having its own problem....so I put the rear L plug in and took out the front L plug...tried starting...didnt start at first, but with a few more cranks it fired up...this was a good sign to show that both rotors have compression, but when all plugs are back in the engine hardly runs...so of course, TIMING! So after a while of dealing w/ my CAS(it doesnt come out easy..which makes me wonder if S4 & S5 motors have a dif front cover)...but I got it out...sure enough, timing was off..way off. Fixed that, but had to wait while I did some other things before tried to restart...



...I restarted the car w/ the now correct timing and viola! Started up...jumped up to about 5K though...then dropped back and bumped between 4 and 4.5K...stayed there for about a minute..I got out of the car to check for leaks, etc...but the car just died on me..It's most likely a vacum problem now, and I know I need to keep playing with the adjustments..I'm glad my timing is good now, and the car starts on every turn of the key..just doesnt idle! Lol..no biggie, just glad my car has compression!



PS..sorry so long.

well i didnt realize it was that simple to figure out. thanks though.

Sweet! https://www.nopistons.com/forums/pub...IR#>/bigok.gif

Cool.. https://www.nopistons.com/forums/pub...IR#>/smile.png

nice!

timing is everything!