Ticking noise coming from F512M engine bay

Hi all,

I went to see an F512M that is for sale locally. When the engine is running at idle, there is a harsh ticking noise emanating from near the A/C compressor. It is hard to pinpoint it, but that is more or less the area it comes from. It does not seem to be entirely in synch with engine speed, more an erratic ticking once every few seconds. With my limited knowledge, I would guess either the A/C compressor itself or perhaps a bad spark plug wire that makes a short circuit with the engine ground?

I know I should get a PPI anyway, but before I go that route, perhaps there are enlightened souls out here who can shed more light on this?

Regards,
Rik

 

Try spaying belt dressing on the ac belt, it works on mine, I think it's a common problem

 

The noise is actually quite harsh. Perhaps I should say more like a clicking noise than a ticking noise. The car is almost 400 km from my place, so I cannot spray the belt dressing from here. ;-)

 

Mine is also VERY loud when it happens. But I aint no mechanic. I guess if your serious then a PPI will expose the problem. good luck and keep us posted with the outcome..

 

Mine does the same, especially when the rpm drops during take off. it started after i changed the alternator. it sounds like a furl ping almost. I think its the alternator belt hitting the fan blades on the alternator. maybe the belt is to tight or to loose.

 

Dear Ferraristi,

...could be the AC compressor or Alt.

....more likely the AC compressor. When it clicks, turn the HVAC control to full heat....if it goes away, it's the compressor.

A couple of years ago, I had an alarming ticking noise. It was the upper rad hose leaking ever so slightly at the clamp dripping coolant on the AC belt.

You would never believe the sound...sounded like a valve going

...tightened the clamp, full clean of the belt and voilà ! ....noise gone...heart back down out of throat.


Shamile

Freeze....Miami Vice !

 

Thanks to all for the input. It turns out that it was the belt. Problem has been fixed already by the dealer.

 

Do you just spray it on the belt and pulley while it's running and the noise stops? What brand do you recommend.? Mine started clicking today....

 

I use VAP VAPROMATIC beltdressing, spray on the AC belt whilst the engine is running, BE VERY CAREFULL, the ticking should stop immediately, I find that mine sometimes needs this after it's been caught in rain (sorry if I offened the (NEVER SEEN RAIN)guys) but here in N.E. Scotland they've all seen rain.............Hope this works for you.........

 

Dear Ferraristi,

In general, you should not need belt dressing. I drive my TR in very heavy FL rain with no squealing or ticking.

I only had a ticking issue because of coolant dripping directly on the belt.

If you have a ticking belt issue, the belt may be worn or glazed. Re-tension the belt first, if the ticking continues, put on a new belt. If it still continues, make sure the AC belt is aligned properly on the pulleys.


Shamile

Freeze....Miami Vice !

 

Also make sure you order the right belt. There was a design change and you need to know which belt is the correct one for your application..

R

 

FWIW my Boxer ticks until it warms up. Has done so even after complete major service.

 

Funny, once in a while I hear the same thing when starting up. It's clearly a rotational noise but pretty loud, not AC related. It's similar to taking a screwdriver tip and tapping a metal bench with it. Kinda worrries me cause it sounds like it comes from the timing belt cover area. If it was a frayed belt I'm not sure it would make this type of noise. We should record it and post the video to see if they are the same noises we hear.
I never thought of the belt dressing, maybe I'll try it.

 

Same exact thing here. In retrospect, it does sound a little like a belt. I'm going to invest in some dressing and give a spray next time. Might be the cheapest fix in the history of Fcars.

 

My TR will do this on occaision on first start up - usually cooler mornings. Goes away pretty quickly. I was made aware of this "quirk" early on in my TR search and never thought much of it.

CC

 

1. The gates polyflex AC belt can make a clicking noise. had the same belts on the Bora.

2. the belts are very tuff. also seen them on airplanes. i never had a failure, but the belts do start to strangely click when they age.

3. i recently changed both belts after an alternator belt failure at texas world speedway. see my post for the details.

4. also belts are listed in the cross reference section

5. i did not tighten the pivot bolts 100 percent so i can now more easily adjust tension entirely from above. after 1500 miles the alternator grooved belt was a little stretched so i tightened it. the ac polyflex did not need adjustment

 

Have you checked for one of these? Like in Casino?
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Exactly, so nothing to be worried about then right?

 

Two well respected F-trained techs have told me the same thing - one here in MD and another in Mass. I do not worry about it as long as it goes away in a few minutes - once some heat gets into the belt I guess.

 

Hey guys I found this thread with a search and think I may have similar issue. Recently at start up audible clicking noise coming from directly around AC compressor. To me it is very clear it is coming from that area. AC compressor comes on fine and works fine. Engine runs perfectly. But sometimes I can hear what sounds like a valve noise coming from behind the passenger side and from what Shamile wrote it sounds precisely like what my issue is. I tightened the AC belt and not sure it quieted it much. It feels tight with only a bit of slack as I am nervous to tighten it too much more. Any ideas to completely silence it. Belt does not seem to have oil or coolant on it to cause slippage. Thanks

 

Here's a test to try. Get an adjustable nozzle water spritzer and spray just a light fine mist on the belt while it's making the clicking. Only need a squirt or 2. If the clicking goes away your belt is still a bit loose. Worked for me.

 

Did you buy the M?

 

or it is old and hard

also may be a very little stone is in there who makes this noise?

also it could be inductive electric charge ( don´t know if this is the right word?? ), so try to have a look in the dark and if you see some sparks then it is inductive charge. use some silicone spray

 

Its caused by static electric on the drive belts......

 

I think static electric and inductive charge is the same?