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Ferrari 365 GT4 2 + 2 to 412 - Maintenance costs: V12 bargains with bankruptcy risk

Ferrari 365 GT4 2 + 2 to 412 - maintenance costs
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Purchase cheap, maintenance expensive

Even if the prices for the Ferrari 365 GT4 2 + 2 to 412 in the past Have tightened somewhat over time, they are at a relatively low level compared to the high sums that are now being charged for other classic V12 models from Ferrari. Classic-Analytics gives good copies of the 3 65 GT4 2 + 2 54,000 euros, for the 412 even around 10,000 euros less. In state 4 the prices range from 16,000 (412) to 20,000 euros (365 GT4 2 + 2). The downside of the coin: The maintenance costs and the prices for technical repairs are just as high as for those Ferraris that are worth several times over.

Nevertheless, there are quite a few enthusiastic owners of this Ferrari 365 GT4 2 + 2 to 412, which, regardless of the cost, carries out all repairs by specialist workshops have it carried out. Anyone who buys such a specimen that is regularly in service, then takes care of it and does not drive it too much a year, can get by with manageable costs for a long time - until a major repair is due.

'Specimens that are far more critical are were not driven at all and with stand damage, or those that were kept running with as little effort as possible and therefore have a maintenance backlog ', warns Markus Schröder from Sportscars Schröder in Langenfeld near Düsseldorf, who is responsible for the Ferrari 365 GT4 2 + 2 to 412 takes care.

Working hours drive costs up - valve clearance control 1,300 €

The reason why a lot of work on these Ferrari 365 GT4 2 + 2 to 412 are so expensive, is largely due to the working hours required, for example for a banal V-belt change. The models discussed here do not match in every detail - for example, the 400i and 412 have twoAlternators, or in some models, some belts are available twice - but changing all the V-belts for the alternator, air conditioning and servo pump takes several hours of screwdriving, so that several hundred euros can ultimately be due. The crackling of the nylon belts after a cold start is harmless, by the way, the belts have become statically charged and are discharging. The noise disappears after a short time.

A lot of work and high costs are required when the valve clearance has to be adjusted. In the case of the carburettor models, for example, the intake manifold must be dismantled, while parts of the injection system must be removed from the Ferrari 400i and 412. The control intervals specified by the factory were for the Ferrari 365 and 400 GT 15,000 kilometers, with the 400i 20,000 kilometers and with the 412 even 30,000 kilometers. Even if that sounds reassuring if you don't drive your Ferrari 3,000 kilometers a year today: At some point this service is due, and then you should have 1,300 euros ready.

The owners of the carburettor models Ferrari 365 GT4 2+ 2 or 400 GT will also have to invest in replacing worn out breaker contacts at some point. For this purpose, it makes sense to remove the two ignition distributors located near the bulkhead and put them on a test bench. Depending on the effort required, this service can cost between 850 and 2,000 euros.

Stand damage causes trouble with Ferrari 365 GT4 2 + 2 to 412

The six Weber double carburettors of the Ferrari 365 GT4 2 + 2 should of course be correctly set and synchronized. The corresponding work costs around 700 euros, but it becomes significantly more expensive if the car has not been driven for a long time and the mechanic has to track down and remove damage to the vehicle, for example in the form of clogging due to deposits. At first glance, the K-Jetronic of the injection models may seem easier to care for. It is actually considered to be robust, but structural damage can also be observed here.

'The control piston of the flow divider often becomes resinous and jams,' says Schröder as an example, but this can be repaired. As far as the fuel supply of the injection models is concerned, the Ferrari expert points out a problem that only the Ferrari 412 concerns. In these models, the fuel pumps are located in the tank. 'After a certain amount of time, the rubber on the pre-filter dissolves in the fuel and clogs the filter,' he explains. To repair this damage you have to calculate 700 to 900 euros per side (there are two tanks). Regarding the 412, it should be noted that there was a version for Switzerland with a catalytic converter, fresh air enrichment, a different flywheel and aExhaust system deviating from the standard model.

Replacing the water pump costs € 4,500 to € 6,000

You should pay particular attention to the timing chain tension. Especially with the carburettor versions and the early Ferrari 400i, it can skip when rolling backwards and in forward gear, especially if it is too loose. In the later 400i and 412, the factory defused this weak point by installing an additional guide in the form of a half-shell on the gear driven by the crankshaft.

It is not a pleasure for the mechanic and an expensive one for the owner when the water pump of a Ferrari 365 GT4 2 + 2 to 412 has to be changed, which by the way is driven by the same chain as the oil pump. Among other things, the end cover must be removed for this. 'The whole thing is a very complex job, theoretically possible with a lot of tricks with the engine installed, but it is better to remove it for this,' says Roland Leirer from the Leirer sports garage in Stein, Switzerland.

New exhaust system for up to € 5,500

Since this repair on the Ferrari 365 GT4 2 + 2 to 412 costs several thousand, it is lucky that the pump rarely leaks. It is usually changed as part of engine overhauls or possibly when the engine, which often loses oil, has to be resealed, which costs around 8,500 euros. 'Leakages that are difficult to access, such as those on the drive shaft of the ignition distributor, are also simply lubricated with silicone for the sake of convenience,' Leirer criticizes.

Other work for which money has to be kept in reserve includes changing the clutch, especially in the Ferrari 412 versions with two-disc clutch, which costs around 2,700 euros. For a layperson, the replacement of the exhaust system is surprisingly high, which costs 5,000 to 6,000 euros and more depending on the system selected - without the two manifolds, which are well over 1,000 euros per piece.

New rubbers and bushings - makes 4,000 to 5,000 euros

Anyone who catches a copy with worn TRX tires currently has to invest a good 1,600 euros. If the running gear is worn out, the rubber and bushing kits available for the front and rear axles can be estimated at 4,000 to 5,000 euros. Ferrari 412 owners in particular have to dig deep into their pockets to replace the six shock absorbers (four on the rear axle). This campaign costs around 4,000 euros. The level control (if present) rarely causes trouble. If 'there are usually leaks', says Schröder.

Even major repairs to the brakes can decimate the account balance. For all prices listed in the service table below, however, it should be noted that 'the spare parts suppliers for someCall up parts of the daily prices, 'says Schröder, which makes a calculation more difficult. In order not to drive up the repair costs unnecessarily, he advises moving the Ferrari 365 GT4 2 + 2 to 412 regularly to avoid damage to the stand. And driving these cars After all, it's also fun.

Service tip Ferrari 365 GT4 2 + 2 to 412

Even Ferrari 365 GT4 2 + 2, 400i or 412 that are in good condition require regular oil changes , which is not cheap because of two filters and a total of 18 liters of oil. An annual check in the workshop prevents expensive consequential damage. Older models (up to 400i, chassis 50 345) that have never been serviced by official agencies can still use the old vacuum pump The operating instructions for all models can be found at www.400register .com . They are very detailed me and informative.


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