Blacktimes
Regular Contributor
Done a 200/400 hr service on my twin BF200´s. Engines only have 240 hours on them but they were manufactured in 2011 but were not used until the boat was launched in 2013. Bought it in 2018 with only 35 hours on them. Thinking more about the calendar than the hours, so went ahead and did it myself. Just a few curiosities in case anyone is interested:
Replaced the Timing Belt on both engines. Timing Belts looked brand new but after 10 years I figured to keep on the safe side. Did not remove Flywheel due to the special tool (just in case) and did the job by removing the Tensator. Takes a bit of work to remove & reinstall on the flywheel, but can be done. Let the tensator take the load with positive tensator movement on the anticlockwise movement as Ian also suggested somewhere in the forum (just with a little help from the thumb just in case)
Did the valve adjustments, 48 in total All the exhaust valves were tight. Intake valves; more or less 3 of the 12 were ok on each engine, rest had to be done. Used Ian´s post; 0.25mm gauges for intakes & 0.30mm por exhaust). Engines definitely run smoother on idle. Will take her for power run this weekend, weather permitting. I don´t know if to expect some fuel economy improvement maybe... MAP sensor on starboard (Garmin plotter) was a bit high (less vacuum), have read that this can throw the ECU off balance and that it can happen with unadjusted valves...
Fuel filters, LP & HP, clean as a whistle, replaced them anyway. No trace of green mush on the HP´s after 10 years. I think the Racor S3227´s really pay off, not for the mush obviously but for the cleanness of the filters.
Spark plugs. All 12 in the same clean/dry situation. No outstanding ones. Could reuse but with age in mind more than hours have replaced them.
ACG Belts seem new, have not bothered with them and reinstalled, not a main concern and I do carry spares on board.
No leaks or excessive corrosion around the Thermostats. Heard orings leaked in the older models...
Did the mid vertical axle bearing lube last time boat was out of the water. Replaced them just in case 3 years ago, came out in very good condition.
I am leaving the internal anodes for later on. 240 hours are too low. I always flush with Salt Away after use. I know it´s not a good flushing system, but I will address with maybe 400 hrs. Have read many posts where they are still ok at 700-800 hrs.
Hope this helps, if anyone needs any details just ask
Anyone on how much a 200/400 hr costs for each engine approx? Just curiosity.
Replaced the Timing Belt on both engines. Timing Belts looked brand new but after 10 years I figured to keep on the safe side. Did not remove Flywheel due to the special tool (just in case) and did the job by removing the Tensator. Takes a bit of work to remove & reinstall on the flywheel, but can be done. Let the tensator take the load with positive tensator movement on the anticlockwise movement as Ian also suggested somewhere in the forum (just with a little help from the thumb just in case)
Did the valve adjustments, 48 in total All the exhaust valves were tight. Intake valves; more or less 3 of the 12 were ok on each engine, rest had to be done. Used Ian´s post; 0.25mm gauges for intakes & 0.30mm por exhaust). Engines definitely run smoother on idle. Will take her for power run this weekend, weather permitting. I don´t know if to expect some fuel economy improvement maybe... MAP sensor on starboard (Garmin plotter) was a bit high (less vacuum), have read that this can throw the ECU off balance and that it can happen with unadjusted valves...
Fuel filters, LP & HP, clean as a whistle, replaced them anyway. No trace of green mush on the HP´s after 10 years. I think the Racor S3227´s really pay off, not for the mush obviously but for the cleanness of the filters.
Spark plugs. All 12 in the same clean/dry situation. No outstanding ones. Could reuse but with age in mind more than hours have replaced them.
ACG Belts seem new, have not bothered with them and reinstalled, not a main concern and I do carry spares on board.
No leaks or excessive corrosion around the Thermostats. Heard orings leaked in the older models...
Did the mid vertical axle bearing lube last time boat was out of the water. Replaced them just in case 3 years ago, came out in very good condition.
I am leaving the internal anodes for later on. 240 hours are too low. I always flush with Salt Away after use. I know it´s not a good flushing system, but I will address with maybe 400 hrs. Have read many posts where they are still ok at 700-800 hrs.
Hope this helps, if anyone needs any details just ask
Anyone on how much a 200/400 hr costs for each engine approx? Just curiosity.