Question about Fiat Pininfarina

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Engine revs high when started,andrevs surge up and down even when hot as if its being reved on and off,also where are cambelt marks for timing belt 1.2 16v w reg 2000 model

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  • kenclio Nov 04, 2008

    yes,1.2 16valve fuel injected w reg 2000 model.

  • kenclio Nov 04, 2008

    sorry its a fiat bravo wasnt listed on list

  • kenclio Nov 04, 2008

    fiat bravo 1.2 16v fuel injection 2000 wreg engine revs at around 3000 when started drops 1300 revs when warm then revs up and down between 1300 and 2000 revs when idleing.nightmare any ideas please.kenclio@talktalk.net thanks.

  • Anonymous May 06, 2009

    I have the same problem. If anyone can help please let me know.

    Fiat Palio 1.2

  • yadayada
    yadayada May 11, 2010

    What year and what engine, fuel injected?

  • Anonymous Mar 12, 2014

    Timing belt marks

  • Anonymous Mar 12, 2014

    Timing belt markings 1.3f Mazda 16v

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  • Fiat Master
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Does this have a self diagnosing emission system, like the USA markets OBD 2 system? we don't have Fiat's here since early 80's, this sounds like a Throttle position sensor issue or idle speed control valve problem, if there are trouble codes stored in the control module's memory please provide them to me along with the definitions, but check the TPS and Idle speed control first.

Posted on Nov 04, 2008

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Can an engine rev when cambelt is taken off?


Hi

To answer your question directly......NO, the engine can not rev when the cambelt is removed, it won't even start. This is virtually impossible for any 4 stroke engine.

i will explain why....... The cambelt connects your camshaft with your crankshaft, when the engine was assembled, the camshaft and crankshaft was turned on the correct alignment marks and the cambelt was fitted. These marks on the cam and crankshaft allows the 4 strokes to happen at the correct time(intake stroke,compression stroke, power stroke and exhaust stroke) If the cambelt had to be removed, there will be serious damage done to your engine, in the first place, the car will not start if the cambelt was removed. the correlation between your camshaft and crankshaft will not correspond and the pistons will hit and damage the valves.

I hope the above description will help you.

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My 95 sonata is reving exessivly on start up then surging in revs when in idle.problem dissapears when engaged in gear.surges between 1000-1500rpm.is it a simple adjustment??


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Choke coming on even in summer, is this right


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Looking for cambelt timing marks/ positions please, Twin cam engine Thanks Kevin


these bend valves if belt breaks while running
Align the timing marks on the camshaft gears to the notches on the camshaft cover, using the intake gear mark for the intake gear and the exhaust gear mark for the exhaust gear.
Align the mark on the crankshaft gear with the
notch at the bottom of the rear timing belt cover.

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Not reving high on cold start


Here is the most common cause of surges and stalls and low idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake

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1 Answer

Can any body help put cambelt back together


You need to rotate the cam until timing marks on the sprocket are in line with the head, then make sure crank shaft timing mark is lined up. Install the belt. Might have to loosen the timing belt tensioner. Put timing belt tensioner back on, rotate the crank shaft with a wrench first to make sure there's no interference. Next, check compression.

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1 Answer

Idle goes nuts while warming up and now while driving....any help


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1 Answer

Timing mark for timing belt


Best to go into a Mitsi dealer and take a photocopy of the timing belt replacement instructions. I would be very concerned that there may be internal engine damage if the cambelt has broken, such as bent valves or piston damage. It's highly unlikely that the cam will stop in the right position with all the valves almost closed when the belt breaks, but I have heard of it from time to time.
Hope this helps, Mark.

Dec 02, 2008 | 2002 Mitsubishi Lancer

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