Please would you tell me whether my 4LH STE has a super charger which comes in before the Turbocharger. If so, where is it and how is it driven.The turbo charger is reluctant to start at the start of the season. Ithas been cleaned and It started last time I took the boat outwith th mechanic on boardIG
Make (of engine): Yanmar
Model (of engine): 4LH STE
Cleaned the air side and the exhaust side.The Mechcanic put some oil on both ends!It started and I ran the boat at 3000 rpm for half an hour up the loch with no problems The turbo is reluctant to come in at the the start of the season I have not used the boat much.
It has a inner cooler for the turbo, no supercharger on that motorcopy and paste the link below for the owners manualhttp://svkarenm.webs.com/YANMAR_4LH_operation%20manual.pdf
What can I do to make the turbo more reliable? The exhaust bend seems to be clear.The turbo is 13 years old
Use the boat more and oil changes is pretty much it
Over a 15 years of working on all the brands of outboards.