Ferrari SI 330 in for Service



I had an owner of the SI 330 contact me about his SI 330GT 2+2, and whether or not I had time to service the car. I’m pretty busy these days trying to keep up with all the work at the shop, along with launching a new car storage facility next door, but I told him I would always be willing to squeeze a tune up on a Vintage Ferrari so long as it didn’t need any major work.

What’s interesting was when I looked up the serial number on the car, I realized I had met this car over 20 years ago in a shop in Vermont! She was a black car back then, but most of everything else was what I remembered.

The interior was still the same vinyl but the owner is now thinking of returning it to leather.

She wasn’t running too well, and I found two issues working against her. The electric fuel pump was working intermittently, and the accelerator pumps weren’t squirting.

The electric fuel pump would have to wait for some rebuild parts, but I took a look at the fuel pump diaphragms, and they were pretty stiff. It looks like some of the internal passages leading to the diaphragms were clogged, allowing the rubber parts to harden and stop working. I had a set of new ones at my shop that I swapped them out so that I could get the car started and running to assess the rest of the engine.

After an initial test drive with an operating fuel system, I found the car performed fairly well. It still needed tuning and tweaking, but nothing jumped out that was horribly wrong. I discussed a plan with the owner, and I proceeded with the service on the engine which started with pulling the valve covers. The owner wanted me to inspect the valve train and make sure everything was fine.

What’s interesting was what I found with the valve adjusters. The most common adjuster screw has a rectangular shape and these have been available from all the parts suppliers for decades.

What I found was a few adjusters were square shaped, which were the original adjuster screws installed on Vintage Ferraris when they were new. I have not seen these adjusters except for original low mileage cars because after nearly 60 years, most of these adjusters have either been replaced during an engine rebuild, or replaced with new ones during routine valve adjustments. The mileage on this car would usually mean this car had a rebuild already, but why would it still have a couple original adjusters? Hmmmm…