Quattroporte Rattle on Start Up

QP4Me

QP4Me

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439
Its a bit of an art form but with practice you know when to switch off just before the motor starts. I suppose it's around 3 seconds.
 
CatmanV2

CatmanV2

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48,796
OK. That sounds like a loooong time. I'll check when I go out tonight, but I'm thinking sub second which may well be where our differing experience is coming from.

If I'm right, I suspect there's something else going on that might well be profitable to look at.

C
 
rs48635

rs48635

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3,181
Mine turns over for longer than I expected before firing, but always the same delay. At first it was just long enough to make me doubt it was going to fire. Now I am used to it i just let it happen.
Maybe this induced delay does pressurise the oil system before ignition?
For reference my (V8) 3200 GT fires up much quicker (when it does actually start)
 
drewf

drewf

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7,159
My QP always starts after approximately 3s. It certainly turns over before it even attempts to fire, whether hot or cold.
I like the idea - it will certainly generate some oil pressure before throwing the fuel in.
 
drewf

drewf

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Actually, I've no proof it doesn't inject fuel, but I suspect that the ECU is deliberately holding off ignition for that period, and that being the case it wouldn't be programmed to inject fuel which would subsequently cause potential damage.
 
CatmanV2

CatmanV2

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48,796
drewf said:
Actually, I've no proof it doesn't inject fuel, but I suspect that the ECU is deliberately holding off ignition for that period, and that being the case it wouldn't be programmed to inject fuel which would subsequently cause potential damage.
Click to expand...

That would be a sensible approach. Curious that it takes much longer than mine to start. Do you wait for the lights to go out? Dry sump?

C
 
drewf

drewf

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7,159
Doesn't change no matter what I do about waiting or not for the lights, and yes it's a dry sump engine. The Spyder starts virtually instantly, same as you are reporting.

I've heard other QPs being started, usually at Shiltech, and drew comfort from them behaving exactly the same as mine.
 
rs48635

rs48635

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3,181
I think it is for added drama.
And to maintain the "Maserati reputation" amongst the great unwashed that italian cars are "unrelaiable".
 
hodroyd

hodroyd

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14,150
This is a public forum mate...THEY ARE SO UNRELIABLE THESE MASERATI'S..!! Hehehehehe, that's seen a few unwashed off and running..!!
 
Gixerboy

Gixerboy

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549
drewf said:
Doesn't change no matter what I do about waiting or not for the lights, and yes it's a dry sump engine. The Spyder starts virtually instantly, same as you are reporting.

I've heard other QPs being started, usually at Shiltech, and drew comfort from them behaving exactly the same as mine.
Click to expand...

Yes mine is the same, then a the growl as it catches. Lovely
 
M

Michael

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340
Started my car Saturday after days of it sitting on the drive - not a hint of a rattle. Started it this morning - after 2 days in freezing/snow. Again, not a hint of a rattle. Makes me think that the valve fix at Emblem may be the way to go or the spring suggested earlier on this thread. Surely it can't fix its self.

At the same time (Saturday) the airbag light that has been on for a month - then decided to go off.
 
S

Simon

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617
Maybe we could all record the 10 secs around start up as a reference for worried owners?
 
drewf

drewf

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7,159
I did this one last year - it has the engine start plus a merged mix of the exhaust, so it's not totally 'clean', but you can clearly hear how long the starter is turning. Disregarding that you can hear the exhaust note just before the starter finishes - it certainly doesn't catch immediately.

[video=youtube_share;R0AK149W_3A]http://youtu.be/R0AK149W_3A[/video]
 
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