Anyone recognise this part from my 76 308 GTB?!

Hi, whilst driving my 1976 308 GTB today (GRP) I heard a "ting" from underneath the car and saw something bounce across the road in my mirror. I stopped and found a small "C" washer which I presume is what fell out. I thought I also saw something else fall off with it but couldn't find anything.

Please refer attached picture. The washer is 23mm in diameter and the centre hole/slot is 10mm.

Anyone recongise what this might be or where it may have come from? The car seems to be driving fine but I'm a little nervous about going too far.

Thanks.
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Not sure, but I think its an alignment shim

 

That's a shim. Generally shims are used in fitting body panels (to make panels fit flush). Shims can also be used in the suspension.

 

Look at this diagram.

http://www.eurospares.co.uk/partTable.asp?M=1&Mo=675&A=1&B=39728&S=

I think that shim is the same on on the engine mount. Check to see if they (the engine mounts) are level (I had one go out on the Mondial last year).

 

Sounds a little small for a 308 A-arm mount shim -- thought those were at least 12mm diameter threads (but not 100% sure about that -- and certainly no harm in checking those locations).

Might be from the AC compressor mounting (item 6):

http://www.ricambiamerica.com/parts_catalogs.php?M=FE&P=&V=diag&I=2203

but also might just be an extra loose part that the Mechanic had dropped and couldn't find

 

Yeah I am pretty sure it goes to the AC compressor mounting bracket.

Helmut

 

Thanks everyone, wow that was a quick response! Steve and Helmut I think you may be right as I had to partially remove the compressor a couple of days back to fit a new belt and I though I heard something drop when I undid the stud at the top (#6 in the diagram) but couldn't find anything. When refitting I ended up putting in a couple of normal washers to pack it up to fit so that explains the gap.

I assume they (Ferrari) used shims to allow you to adjust the angle for the belt?

 

ditto on the ac compressor shim...check your ac make sure the compressor bolts are all there

 

Yes, I'm in agreement, compressor shim. Knew I ran into them some where.