Re: 9.9 Elth-1987 4 Stroke Yamaha-leaks Oil
You were right--Does the lower cowl have to come off to get the pan out?-thanks
No, the pan lifts out the cowl which is one piece.
In fact, you have to remove the oil tank to remove the cowl!
If that makes any sense
Here are some pictures of the old parts that got replaced on mine.
Be prepared to spend some $$ on new parts, seals and gaskets.
I spent $700+ back in 2001
The factory repair manual is a must (#LIT-18616-FT-99) which is for my 1988 FT 9.9ELG
Top view of the mid-section
Upright view of the oil tank assembly
When viewing from the top, you will have to remove the bolts around the perimeter (maybe 6?)
The bolts that are towards the middle, hold the oil tank to the powerhead base plate
Upside down view of oil tank assem.
The left threaded hole is the oil drain
The large right hole is for the stainless exhaust tube which runs up the middle of the tank
The rubber grommet in the lower right is for the cooling water tube
Since your oil leaks out so quickly, I suspect the problem to lie in this area.
I attempted to repair my old oil tank by welding and JB Weld (to fill where it couldn't be welded) but decided to buy new replacement parts instead
Here's a parts breakdown of the parts
Look at the "upper casing"
http://www.yamaha-motor.com/outboard/parts/home.aspx
Good luck,
Scott