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Old 14-07-2009   #106
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Re: Barchetta problems

Quote Originally Posted by Robot View Post
Yup - most B owners experience it Do a search for variator on the forum.
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Old 14-07-2009   #107
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Re: Barchetta problems

Quote Originally Posted by Red Barchetta View Post
Hello Everybody, I just bought a 1995 Barchetta and hope someone out there can help me troubleshoot a problem with it; it runs fine but when at idle the engine is very loud, it actually sounds like a diesel (I keep getting asked if it is a diesel) but then at around 1900 RPM it goes quiet. Oil levels are fine, engine idles steady, i have no (noticeable) power loss, it's just noisy and really annoying.

Any Barchetta owners experience this?
Change your variator and you will never hear it again!
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Old 14-07-2009   #108
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Re: Barchetta problems

Quote Originally Posted by ggranas View Post
Change your variator and you will never hear it again!
Not quite true... I changed mine 2 1/2 years ago and the sound is back
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Old 15-07-2009   #109
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Re: Barchetta problems

So the simple rule of thumb must be, if your changing your cam belt, change the variator at the same time, possibly the water pump as well, maybe once every 2 cam belts?
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Old 22-03-2010   #110
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Re: Barchetta problems

Quote Originally Posted by Abarth barchetta View Post
So the simple rule of thumb must be, if your changing your cam belt, change the variator at the same time, possibly the water pump as well, maybe once every 2 cam belts?

hey,

In the last 2 years I used Castrol Magnatek 5W40... and the diesel sound was there for 5 sec after starting.... I changed the oil and I put Selenia 20K... and guess what... No diesel sound anymore.


I have a question about the braking system... I changed the braking fluid, the pads and disks... And now I have to push harder the pedal to stop the car... did you experienced this?

thanks
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Last edited by alexces; 22-03-2010 at 09:51.
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Old 22-03-2010   #111
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Re: Barchetta problems

I have a similar problem, the brakes are borderline for an MOT pass.

They still work fine, balanced fine left to right and can still kick the ABS in easily enough, you just have to push a bit harder than in my other car.
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Old 22-03-2010   #112
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Re: Barchetta problems

Could be a vacuum line to the brake servo.
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Old 22-03-2010   #113
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Re: Barchetta problems

On mine the servo works ok, you can kill it by braking repeatedly and accelerating at the same time. Checked for vac leaks, all seems ok.

I'm going to try a deglaze and maybe new pads.
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Old 25-03-2010   #114
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Re: Barchetta problems

Quote Originally Posted by alexces View Post
In the last 2 years I used Castrol Magnatek 5W40... and the diesel sound was there for 5 sec after starting.... I changed the oil and I put Selenia 20K... and guess what... No diesel sound anymore.
Selenia 20K is a 10W-40 oil so is a little more viscous than the magnatec 5W-40 oil.

One could argue that the 5W oil will drain down quicker but pump up more quickly. Conversely the 10W will hang around longer but take longer to pump up.

Many Fiat dealers now use Selenia Performer, a 5W-30 oil. Our 'B' was noticeably noisier in the variator area during the last dealer service interval.

I replaced the oil with Mobil Super-S, 10W-40 (ie. Selenia 20K comapible) and there was an immediate quietening/cessation of the start-up variator diesel rattle.

I'm going to see how things go. Will be due for a cam belt change, probably late this year/early next, and decide then if I need to replace the variator. Our 'B' is age driven on the cam belt change. We've already just past the 5 year mark but with only 27,000 miles on the clock. I'll probably push to 6 years, (yes I do periodically inspect the belt) but then have to decide if at only 36K miles or less on the variator whether to risk not replacing the variator when I do the cam belt. For the cam belt and tensioner only this is a quick straight replace. I know the cam belt has never been removed and changed having owned the car from new, runs well, so I'll probably bypass all the came cover removal, shaft locking etc.. If the variator then seriously plays up at a later date then I'll bite the bullet then.

As discussed elsewhere I may look into doing away with the variator altogether. Will probably cost me the same or more as a variator but I quite like the idea of a good old vernier cam and then will never have to bother with the variator again.
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Old 26-03-2010   #115
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Re: Barchetta problems

Why would you want to remove the variable timing? It is one of the key characteristics of the engine.
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Old 27-03-2010   #116
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Re: Barchetta problems

@S130:

5w40 oil is only thinner than 10w40 when cold. Also, it's common for the belt to be ok but a tensioner to fail, causing problems. I'd change the belt and tensioners now if I were you.
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Old 27-03-2010   #117
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Re: Barchetta problems

Quote Originally Posted by HP. View Post
@S130:

5w40 oil is only thinner than 10w40 when cold. Also, it's common for the belt to be ok but a tensioner to fail, causing problems. I'd change the belt and tensioners now if I were you.
I'm fully aware of the tensioner breaking up before the belt lets go.

Crazy design.....

The tensioner on our Strada Abarth is over 22 years old. Still solid as a rock and noise free. Bearing spins smoothly & freely.
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