turbo kit and diesel engine shall be serviced or repaired or maintained seperately by reliable /specialist/machanic.. depend on the repair cost budget,time and performance you expected.. check with the reliable machanic and they will advise you..if you expected tip top performance like new and can pay more..there are many items need to replace because after certain milege there are wear and tear inside the engine and turbo kit..what you can do.. 1)surf the net will gain a lot of information for what and where the engine and turbo goes wrong.. you shall have some basic knowledge on the problems 2)justify yourself are the problems serious or cause you problems after check with reliable machanic , or get a 2 nd opinion from other machanic..different machanic tell you fifferent story 3)confirm the part you think you need to repair due to your reasons of performance, the time they required and estimated budget.. 4)proceed to repair..after complete repair..test your engine to your satisfaction..check with your machanic if problem not solved conclusion.. i am using a turbo diesel 2.8 mitshubishi green engine.the engine after some years is not worth to repair and get 1 st class tip top condition.. but actually shall change for a new car or truck. secondly. during the usage please ensure proper usage, maintainance and oil change so that could extend the life span of the engine..
No spark plugs on a diesel.
I perform diesil engine tune up to avoid engine trubol
diesel engine tune up-valve adjustment,bleeding,on time method,change oil,change filter
It's more about the tune-if you have enough fuel, strong enough pistons/rods/crank, etc., with the correct tune, you can have a huge or a small turbo on an engine. If you just put a bigger turbo on a vehicle and do not add fuel and tune, your engine will suffer.
To keep it running cleanly and efficiently.
For common rail diesel engines you can use a solvent that recommended by manufacturer and directly connect it to the high pressure diesel pump and run the engine for 45 -60 minutes
as far as using the supercharged focus head, im not too sure. but the turbo charged head, yes, it is the same thing, just built for boost. im not sure if the 2 heads are different for turbo to supercharger. but i would say use the turbo focus svt head and TUNE IT, TUNE IT, TUNE IT. then after you tune it, tune it some more. P.S. did i mention you need to tune it?
This is a complicated process and is individual to each make and model engine. Basically adjust valves, adjust turbo waste gate, adjust injection timing, ensure the pump makes correct pressure and volume, ensure the nozzles or injectors perform correctly and don't leak.
It is usually done on a dyno, so you can load te turbo and different rpms, and using a wideband O2 sensor, you add/remove fuel and/or timing. You always start out too rich and slow fine tune it so not to damage the motor.
A pre-turbo exhaust temperature of between 1500-1650*f is optimal. Here is a link below, on using your EGT's to help you tune your car.
An ECU will require a proper tuning computer system. There a several available on the market. Then the car will require a DYNO test to allow the engine's turbo to be calibrated according to the response of the engine. This allows for the best fuel, air, and spark readings.
yes, you can but you cant run too much boost unless you lower the compression ratio. Also a dyno tune to recallibrate the injector pump should also be done to fully setup the air fuel ratios.