Next message: Faure, Marin: "T&T: Digging a hole in the water"
TK
There are a lot of things that can be done to narrow your search down and to
spend money on experts on the finalist.
1. does the owner have maintenance logs? read every word on them.
2. Look at the engines and generators. Look for the following:
are cooling hoses cracked or reinforcing wire showing?
are fuel hoses cracked or rusty connections?
condition of hose clamps, rusted?
color of antifreeze it will usually be green, purple, or red. black or
gray color is bad.
Look at underside of coolant pressure cap, oily brownish residue or rust
is bad.
pull oil dipstick diesel engine oil will be black but look at the top of
the stick for brownish residue (bad)
Pull oil filler cap look for brownish residue (bad)
Take oil from dipstick and put some on a clean paper towel. look for any
thing shiny (metal)
3. Make sure engines are cold to the touch (if the engine are not cold come
back on another day) go to stern of the boat or if the boat is backed in to
the dock stand on the dock and have the owner start the engines one at a
time. White smoke on start up that quickly dissipates is not unusual especially
on Detroits. Watch for continued black, gray or white smoke. All indicate
different potential problems all of which can be researched either here or at
Boat Diesel or any of several different books.
4. Find out the rated max rpm for the engines you are looking at. Have the
owner run the engines up to that rpm. this is noload rpm and usually will
exceed max rpm by about 50-100 rpm. The correct way to check this is with a hand
help infared rpm tester. Lacking that check to see if the engine room has
direct drive tachometers and use them to check rpm. (during a sea trial you are
going to want to be sure that the engines are within 50 rpm of max while
underload.)
I am sure that others on this site can give you more things that a layman
can check for himself this will get you started. If you have specific questions
let me know.
Jim aboard m/v Sea Eagle
"Semper Fi"
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