Black Start wrote:^On another note have you had any experience with sookhai's diesel?
Yup, I have experience with them.
My dad serviced his L200 K34t (1996 MODEL) fuel pump and injectors by them. One of the injectors was shot so that had to be replaced (got a FU from Prabhu's in Bamboo (just after the temple on the left-side street) for about $150.
They cleaned out all the injectors incl the FU one (I believe they used both a cleaning solution similar to Liquid Moly) and they also ran it through a Sonic Machine to vibrate all the crap off the injectors inside & out.
They also serviced and recalibrated the Fuel pump. When they returned it, it was miscalibrated at first and was running very rich, so that the van bucked a bit and blew out black smoke. But we carried it back and they recalibrated it correctly and all was well.
When we got back the L200, it was running like new! Granted, the 4D56 turbo in it has about 295,000km on it (it was one of the first L200 to land in trinidad back in 1996!!) so it's not as fast as it used to be (it can cruise at 110km comfortably, reach 140km/h at effort) but the PULLING power was dead-on. It basically felt like brand new and so far my dad hasn't had ANY problems at all. The other day, he loaded up the tray with 8 bags of cement and about 150 concrete blocks for a project, and it pulled the stuff easily with hardly any black smoke out the tailpipe (less than you'd expect).
Fuel economy is good (about 450km per tank, same as stock) and my dad is completely satisfied.
So yes, this is a happy testament to their good work and I'd recommend them to anyone. Price is well worth it - they charged $3500 overall for everything and recalibrated the pump for free.
So to start with, I'll change the fuel and air filter in the van for her and I'll run a Amsoil diesel treatment through it as well.
What you should do is disconnect the fuel-filter, and run the intake/outlet hoses through a container of the Amsoil Diesel Concentrate directly. Cut open a plastic 20oz bottle and full with the Amsoil, then run the hoses, start the engine and let it run till almost down. Be careful not to let any air into the hoses or the engine might sputter.
WHen you're done, reconnect and run the engine again on pure diesel (best to do this job when you freshly fill on diesel, and better yet use UNIPET diesel with their filters on the pumps). If i were you, I'd try to compare the power and fuel-economy before and after doing this cleaning job (i.e. run a full tank down to almost empty, record your mileage on the tripmeter, then do the cleaning, then run a fresh tank down to empty and compare your mileage).