2005 Tiara 2900 with 6L crusaders with 550 hours. Survey said that the gap was .006 inches and should be .003 inches. Mechanic said that it would take up to six hours per engine to do an alignment. Any thoughts on this?
I would question that time for an "in water" alignment. Are the mounting bolts frozen? Are the struts bent? Can you access the mounting bolts and coupling? Are you talking about Vee Drives?
A vertical alignment normally takes only minutes while a side to side adjustment is more difficult but is still way less than 6 hours. Time to get a second opinion. Capt. George
Thanks. The engines are not v drives and all of the mounting bolts are clean with no corrosion. Given that the shafts are quite short I am wondering just how critical engine alignment is. The feeler said the gap was .006 inch whereas the generic manual says the gap should be no greater than .003 inch. I also have had the cults bearings replaced.
I would recommend you have the shafts aligned to factory spec of no more than .003. At .006 I would expect a vibration (although it should be minor) or at least you can expect more wear and shorter cutlass bearing life. Had shafts aligned on my 38 Open w/450 hp Cummins when they showed .004 and .005 on the coupling. Results were good and I feel the boat is now quieter (maybe wishful thinking). M2C
I get vibration starting around 2000 rpm. Standing above the struts. Engines were replace 4 years ago and now have 300 hours, [454s].
Surveyor suggested alignment. Cost to do it about $1000.00.
My mechanic suggested having shafts taken out to be checked along with the props. About 2100 hours on gear behind transmission.
I'm hauling boat out to have all sea cocks replaced, they are frozen open. I count 8 of them.
Any thoughts on the vibrations.
Previous owner never felt the vibration from the helm.
Previous owners often don't notice things they have slowly grown accustom to. I have been on a few boats that had excessive vibration and the owners have no clue.
your correct, previous owner is never standing above the struts while on the way.
Taking props in to be tuned up at haul out.
Checking for wobble at packing gland before haul out.
Starboard shaft needed straightened, prop tuned, new cutlass and alignment.
Port, needed the prop tuned. no need for alignment.
All sea cocks. Good working condition.
New Raritan toilet
New water supply line to toilet
New vent line for holding tank
Replace all 1 1/2 from toilet
Thank god for the heat gun.