Weird No Start

[ANVIL]

im having a weird no start issue with my s1 rb25det. i confirmed fuel, spark, new cas, battery is good. when i crank it over it cranks and when normally it would fire up it instead my dash lights go dim and theres this weird winding noise. i kept trying and thought i flooded my engine, so i pulled out the plugs, some fuel but not flooded. i blew air into the cyl and cleaned off the plugs just in case. same thing happens. it was literally just starting before, all i did was adjust the CAS on the last fire up to correct the timing. its almost like the battery is bad, but its not holds 12v even after attempting to crank a half dozen times. im pretty stumped... the winding noise is something i never heard or seen before. opinions would be greatly appriciated!

[ANVIL]

so i played with the injector settings in FC-edit (im pretty sure they are right now), fully charged the battery, made sure the cylinders werent flooded and re-aligned the CAS and still the same results. getting really irritating.

so i decide to try to check the CAS per FSM but im a little confused. im going by this:

im trying to follow it but its a little confusing to me. i can hear the injectors going off when i spin the shaft... when i check the voltage to #2 i get battery voltage, 3 and 4 depending on the position of the shaft its 5v or lower. nothing at 1.

is my CAS ok?

im just so fustrated with my car, it was literally just running and now it wont even start.

[ANVIL]

bump... anyone have any ideas on what i can check???

[ANVIL]

over 170 views and no one has any suggestions?

[Craved]

you think your altmeter would be good enough to pick up 0.1V ???

tried jump starting it? as dimming lights suggest a power supply issue - or it could be a bad earth

[ANVIL]

worked on the car last night, basically started over as if i never checked anything. also put the battery on a battery charger prior to all this to eliminate that and make sure it was fully charged.

checked fuel pressure, and injectors. tried with lowering and also raising fuel pressure

confirmed spark

double checked coil and battery grounds, also added an extra ground from the intake manifold to the chasiss

double checked and re-tightend all intake manifold bolts and hoses and anything that can cause a vacuum leak

double checked all i/c piping and couplers

tried with my power fc datalogit base map, my orginal tuned map from last year, and a new map for this year compensating for my new injectors

tried re-aligning the CAS several times

tried with maf/afm plugged in and unplugged

checked and re-gapped (0.8mm) spark plugs

some flooding after trying all those things so i pulled all the plugs and left them off over night. have a new set of plugs (NGK V-Power BKR5E-11) ready to go in today after work, also going to spray some air into the cylinders to make sure theres no flooding.

and basically thats where im at...

Edited April 15, 2009 by ANVIL

[ANVIL]

so i think i figured out whats wrong with my car... when working on it, i noticed a small rip in my timing belt. there must have either been some debris in the timing cover or i accidently grazed it or something while working on my engine. i immidately put the crank to TDC, and the cam gears were off by 4 teeth. i put a new belt on and re-timed it. still wouldnt start. would idling less than 2 min, and doing cranks be enough to bend valves? im really worried i bent my valves...

Edited April 16, 2009 by ANVIL

[Benzy]

Does your exhaust cam still have the locating pin for the CAS on it still or has it been snapped off?? If it has been snapped off youll have to lign up the CAS visually where you can see the marks on the end of the cam...just a suggestion, seems to catch a few people out when they pull out the CAS..

[ANVIL]

it snapped off... but im pretty sure i put it in right, i tried a bunch of times and im pretty sure i got it in properly... now im wondering if my valves are ok... going to do a compression test when i get off work.

[ANVIL]

good news and bad news. good news is i dont think my valves are bent, i did a compression test last night and im sitting at about 155 on all cylinders. bad news is i still dont know wtf my car wont start....

[ANVIL]

can some one post up some good pics of the exhaust camshaft where the CAS goes and also a pic of the inside of their CAS? the key on my camshaft broke off and i need to be 100% sure on how to put it on... im suspecting something with the CAS because it was the only thing i actually touched before i got this no start condition...

[ANVIL]

dang, i posted this on 4 different forums and nobody has any kinda clue

[Benzy]

I can get you a pic tonight bud, But grab a torch and take a look at the end of the cam where the keyway used to be, It most probably wouldnt have snapped off clean, so you should be able to see the raised/rippled half moon shaped surface that it has snapped off.

Once you work out which side of the circle the keyway was on, mark either side of the hole the CAS sits in, (so when you go yo put the CAS you can tell where it is meant to sit)

Then grab the CAS and mark the side of it where the keyway is meant to sit.

Line up the marks, then slide into place...

Hope you can understand that, If not ill get pics tonight and demo it for you..

[ANVIL]

that would really help out, thanks!

and what do u think about the condition of my CAS? or maybe can someone explain it a little more clear than the fsm pic i showed? i was checking pins to earth (gnd)

[ANVIL]

guess its time to take it in to a shop... 2 weeks and still no clue

[Benzy]

Here you go bud, if you mark on both where i have put the red marker, then it should line up no worries at all. just make sure you know where the key on the cam used to be and youll be right. Goodluck

[ANVIL]

thanks. the only thing that sucks is that its flat. if u have time, can u do one with the valve cover off so i can see in relation to the cam position where the key goes?