330 GT Registry

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Clamps

There are three types of clamps originally used on the 330 GT.  These are Cheney, copiglia and Corbin clamps.

COPIGLIA CLAMPS

The copiglia clamps are used on the heater hoses, radiator overflow, cowl drain hoses, heater and defrost hoses, etc.  They come in 2 widths, 5mm and 9mm.

Cowl drain, by brake supportAir duct hose from blower to heater box
Manual heater valves†Cowl drain, by fuse box
Radiator overflow hose†Radiator overflow hose at overflow tank†
Defroster hose under dash

CORBIN CLAMPS

Corbin (spring wire) clamps are used for small hoses where there is no pressure.  Their main purpose is to prevent the hose from slipping off rather than a tight seal.

Both ends of brake reservoir hoseCrankcase vent hose†

CHENEY CLAMPS

Cheney clamps are similar to the normal hose clamps you would buy at any auto supply store.  The main difference is that the band is not slotted for the screw threads.  Instead, the band has indentations for the threads.  These are common on English cars of the same era, so a source might be a Jaguar garage's old parts box.

Oil filler and breather hose‡Fuel filler hose†
Upper radiator hose†Brake booster hose at carburetor

Here are the locations and types of the various clamps, as derived from the Ferrari and Pininfarina parts books.

Series 1 Clamps
LocationTypeSizeTav/Part #QuantityFerrari #
Oil pickupcopiglia5mm11/25218270
Oil breatherCheney35x4115/41235x41
Oil breatherCheney22x3815/42222x38
Brake vacuum hoseCheney031/4694101
Upper radiator hoseCheney2A39/15294103
Lower radiator hoseCheney1X39/28294100
Radiator overflow hosenone0
Heater hoses/engine endcopiglia9mm39/23494909
Heater hoses/heater box endcopiglia9mm66/17*4241.86.130.0.0
Heater hoses/manual shutoffcopiglia9mm494909
Fuel filler hoseCheney340/8294705
Fuel filler vent hosecopiglia5mm118270
Heater air ductscopiglia9mm66/21*12242.86.552.0.0
Defroster ductscopiglia9mm66/8*8242.86.130.0.0
Fresh air ductscopiglia9mm64/9*4242.86.552.0.0
Cowl drain hosescopiglia9mm64/7*2242.86.130.0.0
* - PF body parts manual

Series 2 Clamps
LocationTypeSizeTav/Part #QuantityFerrari #
Oil pickupcopiglia5mm11/46218270
Late oil pickupcopiglia5mm12/48**218270
Oil breatherCheney35x4110/14235x41
Oil breatherCheney22x3810/17222x38
Brake vacuum hoseCheney06/19294101
Brake/clutch reservoir hosesCorbin27/28694951
Upper radiator hoseCheney2A36/8294103
Lower radiator hoseCheney1X36/44294100
Radiator overflow hosecopiglia5mm36/11318270
Radiator bypass hoseCheney36/5294909
Heater hoses/heater valve endCheney36/21294909
Heater hoses/heater box endCheney66/17*4241.86.130.0.0
Heater hoses/manual shutoffCheney36/21494909
Heater hoses/return endCheney36/21294909
Late heater hoses/heater valve endcopiglia9mm36/19**380815
Late heater hoses/heater box endcopiglia9mm66/17*4241.86.130.0.0
Late heater hoses/manual shutoffcopiglia9mm36/19**480815
Late heater hoses/return endcopiglia9mm36/19**280815
Fuel filler hoseCheney337/7294705
Fuel filler vent hosecopiglia5mm37/9118270
Fuel return hoseCorbin8/3**294951
Crankcase ventilation tubingCorbin7/5**1094951
A/C drain hosescopiglia9mm280815
Heater air ductscopiglia9mm66/21*12242.86.552.0.0
Defroster ductscopiglia9mm66/8*8242.86.130.0.0
Fresh air ductscopiglia9mm64/9*4242.86.552.0.0
Cowl drain hosescopiglia9mm64/7*2242.86.130.0.0
* - PF body parts manual
** - GTC parts manual

† Photos courtesy of Buddy Obara (SN 9667)
‡ Photo courtesy of Ed Montini (SN 8289)