Roller Camshaft Kits

[pheyden]

Many of the later 1000TC, TCR and Bialbero motors had the camshaft (or auxiliary shaft for the Bialbero) mounted in roller bearings. This was done to reduce the amount of friction attributable to the cam and therefore reduce parasitic losses. These roller bearings do not require direct oiling and rely on splash oiling.

I have developed two kits.

Kit A is for Bialbero 982cc motors (2nd generation auxiliary shafts) The kit contains the front cam bearing housing, front bearing and internal snap and rear bearing. This is for use in a Fiat 600 or AH block with the smaller front cam bearing journal.

Kit B is for any motor using the larger front cam bearing (FIat 850, 903, 965, 982, 1050). Again, the kit contains the bearing housing, front bearing and internal snap ring and rear bearing. Also included in this kit is a new camchain drive flange and keyway.

In order to use Kit B, the camshaft must have the front and rear cam journals ground down to the internal ID of the bearing and a key-way must be machined into the cam snout for the drive flange. The rear cam bearing journal in the block must also be bored for the OD of the roller bearing. Scuderia Topolino can provide any of our camshafts to this specification for an extra preparation charge. As well, we can modify your camshaft. Standard cam chain sets, or our gear drive kit, can be used with rollerized cams. Note: the center cam bearing remains the same running in a standard bearing.