Car Died, Turns Over Really Quick Now

[GTAAAH]

Yo, coming off the highway last night, chucked the car into neutral was just cruising and the car stalled, so i chucked it back into 4th to get it started again and it made this grinding noise (sounded like clutch, wasn't very loud) so i quickly put clutch back in and coasted to a stop. Got out checked oil which was fine, tried to start it and it sounded like the starter motor wasnt engaging (but i'm pretty sure it is). Anyway so it turns over but won't start, i cant really hear it as loud as it used to be either (like either it's getting no spark or getting no compression)

Anyway there was no real banging noise so i'm hoping the engine hasnt gone.. i got a new clutch about 500km's ago, could it be something flywheel related (i.e. maybe it's quiet cos the starter motor isn't engaging properly or smtn) or if it was getting no spark wouldnt it turn over quieter (on account of no ignition etc) or if it were not getting any fuel (on account of less compression)

any suggestions.. dad reckons if something had blown up i would have heard it

Edited June 22, 2008 by GTAAAH

[tridentt150v]

Was the stalling part of the problem?

If it wasn't for the stalling I'd have said a stuck solonoid on the starter motor. But its more like your clutch and flywheel.

[GTAAAH]

sum1 just pointed out it'd be easy to tell whether it was turning over from looking at the fan (which is turning) so it's turning over obviously.. anyway he said it might be the cam belt.. but if a cam belt snapped wouldn't it not turn over because the pistons would interfere with the valves?

I dunno why it randomly stalled and why it won't start again but i've kind of already decided if the engines broke i'll sell the car for 11k and just pay the loan off ._. sarks

[br3ndan]

Did u machine/replace the fly wheel when you changed your clutch?

[GTAAAH]

yeh it was definitely machined by the workshop, why?

Edited June 22, 2008 by GTAAAH

[chook]

could be cam belt, would still turn over-quicker, valves would be bent out of the way. pull off the front belt cover to check

[GTAAAH]

oh yeh didnt think of that, brb pull it off

[aphid]

cam belt mate, same thing happend to me at a set of lights tunring onto the highway, straight away i thought it was the solenoid getting stuck so was banging the f**k out of that, then realised there was no belt there anymore

EDIT: there isn't enough lift in the rb25 to interfear with the pistons, you can rotate the crank 360degrees with the timing belt off without the pistons touching the valves.. this may also be because they run hydrolic lifters i guess and at idle / when the engine is off there isn't enough pressure there to get maximum lift? perhaps with the extra lift and solid lifters this is what the grinding noise was

Edited June 22, 2008 by aphid

[GTAAAH]

timing belts still in one piece (has markings about every half centimeter that seem to coincide with gaps in the teeth but am assuming these are duel to normal wear) which is good.. people were making me hell paranoid haha, any other suggestions

Edited June 22, 2008 by GTAAAH

[nizmonut]

take the rocker covers off, both of them, then turn it over and watch the cam shafts, 10 bucks says you gotta snapped cam shaft, also it will between cylinders 1 and 2 and probably the intake cam.

[GTAAAH]

ah can't do this, it's getting dark outside and it's on a trailer :S wouldn't it be noisy as hell if something like a broken cam shaft had happened

[GTAAAH]

woooooooooooooooooooooo rebuild

YAY

compression at:

1)100 2)60 3)40 4)0 5)0 6)0

Time for engine loan on top of car loan.. engines being stripped apart atm to figure out what went wrong.. got no idea atm

now i just need a job..

[tridentt150v]

I had a cam stick bust on me once, could be that, I actually thought of that when I first saw your post, but discounted it because you had no noise turning the motor over.

keep us posted

[jarrod83]

sorry to hear the news, was just a couple weeks ago your car was playing up with the lack of power... could they be related?

[Guilt-Toy]

how did it go ?

[GTAAAH]

not sure whether they were related but i ruled the lack of power out altogether.. i think with the new clutch it was just alot more constant instead of slipping at certain points and the feel was just different.. i took my mech for a drive in the car at the time and he said power seems about normal so it's not that

car is still being ripped apart, interesting to know what did it.. was advised i'm better off rebuilding than selling car for 10k as car is in good overall condition

Edited June 23, 2008 by GTAAAH

[GTAAAH]

Problem is 3 melted pistons, caused by detonation.. Damn annoying, i bought a boost controller so i could run 10 psi (pcm was running 14) and somehow it's started detonating and blown it all

so gonna throw in some forgies, keep my current rods, get everything machined, new big end bearing and fuel pump, maybe a sump baffle kit some adjustable cam gears and throw it back together, probably lob some turbos on it down the track

[Beer Baron]

sorry to hear that mate still, you know what they say. build it bigger and better.

[femno]

You were cruising and it detonated? How? Did you fang it prior?

It sucks but look on the bright side you get to rebuild it, just make sure you find the cause before you bung the new motor in

[GTAAAH]

idk i had been giving it a bit during the course of the night but at the time i was cruising in 5th (this about a minute after a few 7k rpm shifts) and yeh it just died

luckily the head is fine (didn't expect that) so it's just going to be ported and reshimmed (noisy) and back on

and yeh thats the plan baron, a reliable 320kw would be awesome

cheers guys