Zaphod

Hi after I redid my coolant reroute and changed fluids I stated my car today. Started well, then stumbled and won't start again. The loose sensor wire of my oil temp gauge might have hit my starter.

Now the car sounds a bit strange - like a wirring sound and doesn't start. Did I kill my starter or maybe?
After a while of cranking some white smoke came out of the intake... And I can smell fuel...

Maybe I give the starter a small push with the car in gear or hit the starter with a hammer...

I will also try to reload my firmware on the MS3 tonight and reload my MSQ. I think I might have corrupted the firmware...

Any other ideas?

curly

iTrader: (25)

Shouldn't of killed it. I grounded my socket wrench directly to the power bolt a number of times, that's always the point in engine removal that I remember to disconnect the battery.

Mine's been fine, 120,000 miles and still starting strong.

rharris19

iTrader: (41)

If the car is cranking then your starter is fine. I would look elsewhere.

Zaphod

I am a bit lost now here...

As I wrote above - The car started at the first try, ran for some second and now nothing. I cannot get reasonable RPM readings in TS,

This is how the car sounds, when I try to start:



I suspect something I can't really believe - could the cam belt be gone?
I couldn't see a thing because of the covers and the darkness...

Please help me out.

I will try to reflash the firmware tomorrow anyway... And I will swap my DIYPNP and see if it starts...

curly

iTrader: (25)

I fucked up your tube link, but it didn't work to begin with anyways. ----.

Zaphod

Should be working now...

Reverant

iTrader: (10)

Looks like no cam signal? What does the composite logger report?

Zaphod

Gonna look tomorrow... After the reflash.

hornetball

iTrader: (4)

If the engine is turning over really fast, it means no compression. I stongly suspect you've broken your timing belt. Pull your valve cover. It will tell the tale.

Fortunately, the Miata engine is non-interference, so this is actually not a big deal.

RattleTrap

No compression, no valvetrain friction. No cam-drive!
BTW, that 'white smoke' is fuel. No smoking...

Zaphod

I am a non-smoker - so don't be afraid...

I also suspect the cam-belt - the engine sounds so strange and turns over very easily...

I am going to pull the Cam-cover this afternoon.

Are there any good pictured How-to's about the cam-belt change online? I got the factory handbook but maybe there is something more pictorial out there...

Reverant

iTrader: (10)

You might as well tak a peek through the oil cap.

Zaphod

Update - so it's not the Cam belt - I had both the oilcap and the cam-sensor removed and both cams are turning, when I turn the crank...

I swapped in my DIYPNP and it's also not doing anything else...

Might have to swap another cam sensor in...

Zaphod

Here is a (very) short composite log:

https://www.miataturbo.net/attachmen...1&d=1332499357

Maybe someone could have a look...

Reverant

iTrader: (10)

Not enough data in there, you need to crank more. However, the crank sensor signal does appear a bit odd.

Zaphod

I pulled the cam cover to have a look at the CAM belt - looks fine - though it seems to have some slack.







Could you have a look if the timing marks and teeth between do look correct?

@Reverant - to get a longer logfile I will have to re-attach the cam cover.
Will do as soon as the timing verified...

I pulled a COP before I pulled the cam cover - there is no spark.
The MS3 is working - verified on the bench/stim.

Zaphod

@Reverant - nd the others off course too - here is a little longer composite log...

https://www.miataturbo.net/attachmen...1&d=1332513957

Please have a look

Here is a pic of my composite log:


And here a pic how the NB signals are ought to look:


Looks like my Cam and Crank signal are out of sync??? The two following Cam signals should be inbetween two crank signals - looks like its a bit early just before the Crank signal - I am no expert on that, so please excuse my bad description...

BTW - what does the red line mean?

Reverant

iTrader: (10)

If both cam gears look properly aligned, then it looks like the crank pulley has jumped instead. All 4 teeth on the crank pulley should be fully contained between the 1 and 2 teeth on the cam gear. On your log, one of the crank teeth is between the two teeth of the cam gear.

Zaphod

I just edited my post when you replied...

This means a complete belt job I suppose...?!

Reverant

iTrader: (10)

I guess so.